Instruction Manual. Hako-Citymaster 1250 ( /.22/.31/.32)

Instructin Manual Hak-Citymaster 1250 (1433.21/.22/.31/.32)

Intrductin PrefaceIntrductin Dear Custmer, We are certain that the excellent qualities f the Hak-Citymaster 1250 will justify the faith yu have shwn in us thrugh yur purchase. Yur safety, and that f thers, basically lies in yur ability t cntrl and perate the vehicle. Befre using the vehicle fr the first time, read this translatin f the riginal manual thrughly, act accrding t the infrmatin cntained and keep it in a safe place fr future reference r subsequent wners. Please read the Chapter "Safety Infrmatin" prir t starting the vehicle t ensure it is perated and used safely. The perating manual cntains all the mst imprtant infrmatin regarding peratin, maintenance and service. Thrughut this manual, texts which cncern safety are indicated by the crrespnding danger pictgram. Shuld yu have any questins in respect f the vehicle r perating instructin manual, yur authrized Hak dealer is available t prvide help at any time. We explicitly pint ut that n legal claims may be asserted based n the infrmatin cntained in this manual. Please pay attentin that nly riginal spare parts are used fr any necessary maintenance and repair wrk. Only riginal spare parts can guarantee lng, reliable equipment peratin. We reserve the right t make technical imprvements. Valid frm: March 2012 Hak GmbH 23843 Bad Oldesle Hamburger Straße 209-239 Telephne: +49 4531 806-0 Intended use The Hak-Citymaster 1250 is a Multipurpse machine intended fr cmmercial and municipal all-year deplyment. This includes e.g. sweeping, lawn mwing, deplyment with a snw plugh and a sand and salt spreader. The scrubber assembly allws cleaning f city centers, parking garages, undergrund parking areas r marketplaces. Any use f the vehicle beynd this scpe is cnsidered t be unintended use. The manufacturer is nt deemed liable fr damage resulting frm unintended use; the risk lies slely with the peratr. The intended use als includes bserving the perating and maintenance cnditins stipulated by the manufacturer. The machine may nly be perated, serviced r repaired by persnnel wh are familiar with the wrk invlved and are aware f the risks. The machine and its attachment devices crrespnd t the usual health and safety requirements in the EC Directives (see Declaratin f Cnfrmity) n accunt f their design and cnstructin as well as the type distributed by us. In the event f an unauthrized mdifica- 2

Intrductin tin t the machine, the Certificate f EC Cnfrmity the Declaratins will becme vid. The manufacturer is nt deemed liable fr any damage resulting frm unauthrized mdificatins t the machine. The manufacturer is nt deemed liable fr any damage resulting frm unauthrized mdificatins t the machine. Ntes n warranty The terms defined in the purchase agreement apply. Claims fr cmpensatin in relatin t damage are excluded frm the terms f the warranty when the damage is the result f the failure t bserve rules cncerning servicing and maintenance. Maintenance wrk must be carried ut by authrized Hak service centers and cnfirmed in the Maintenance Reprt, which serves as a warranty lgbk. The fllwing are excluded frm the terms f warranty: wear and tear thrugh veruse, defective fuses, imprper handling and use and unauthrized mdificatins. Claims under the terms f the warranty are als annulled when damage ccurs t the vehicle resulting frm the use f parts r accessries nt explicitly apprved f by us r frm failure t bserve maintenance rules. Acceptance f the machine Inspect the machine immediately n delivery fr signs f transprt damage. It will be replaced if the damage is immediately cnfirmed by the haulage cntractr and the damage reprt is sent t ur authrized sales partner tgether with the cnsignment nte. 3

Intrductin Cnditins fr apprval The Hak-Citymaster 1250 is a multipurpse machine (tractr fr use in agriculture r frestry) in terms f the EC Directive 2003/37/EC. The manufacturer prvides an EC Certificate f Cnfrmity and an EC Declaratin f Cnfrmity. Based n the EC Certificate f Cnfrmity, the lcal licensing authrities will prduce the registratin certificate part 2 (vehicle registratin) and part 1 (vehicle registratin). Fr use n public rads, paths and areas the Hak-Citymaster 1250 has t be licensed and display an fficial license plate. In accrdance with the StVZO, the vehicle must carry a first-aid kit, warning triangle and the vehicle type apprval when used n public rads, paths and pedestrian precincts. The Hak-Citymaster 1250 is subject t regular general inspectin accrding t 29 StVZO (every 24 mnths) If any mdificatins r additins are made t the Hak- Citymaster 1250, which affect the cntents and are nt cntained in the registratin certificate, it will becme vid. In cnsequence the insurance cver and the vehicle tax will als becme vid. T acquire a new registratin certificate, the vehicle must be presented t an fficially accepted expert t prduce a new reprt. The mdificatins have t be included in the registratin certificate by the registratin authrities. In the EC Declaratin f Cnfrmity the manufacturer declares that the attachments apprved by Hak adhere t the rulings in the EC Directive 2006/42/EC. 4

Driving license Accrding t the driving license law the Hak-Citymaster 1250 may be driven as a multi-purpse machine by drivers with the fllwing classes f driving license: Class B and BE: Vehicle up t 3.5 t and trailer up t 750 kg (permitted ttal weight) r trailer up t the dead weight f the tractive unit as lng as the permitted maximum ttal weight f 3.5 t fr the tractr/trailer cmbinatin is adhered t. Class C and C1: Vehicle abve 3.5 t with trailer up t 750 kg Class CE: Vehicle abve 3.5 t with trailer abve 3.5 t (but nly up t the ttal weight f the tractr-trailer cmbinatin apprved by the manufacturer) 5

Table f Cntents Intrductin............. 2 Preface.................. 2 Intended use............. 2 Ntes n warranty......... 3 Acceptance f the machine.. 3 Cnditins fr apprval..... 4 Driving license............ 5 1 Safety Infrmatin........ 9 1.1 Safety and warning symbls. 9 1.2 General infrmatin....... 10 1.3 Operating infrmatin...... 10 1.4 Maintenance infrmatin... 12 1.5 Attachment devices....... 13 1.6 Particular risks........... 14 1.7 Installatin f electrical devices................. 15 1.8 Envirnmental prtectin... 16 1.9 Labels n the vehicle...... 17 2 Operatin.............. 26 2.1 Overview frnt unit........ 26 2.2 Overview rear sectin f the vehicle................... 27 2.3 Functinal descriptin..... 28 2.3.1 Sweeping system......... 28 2.3.2 Scrubbing system......... 28 2.3.3 Hak-Citymaster 1250 fr transprtatin peratin........ 29 2.3.4 Frnt cupling triangle..... 29 2.3.5 High pressure washer..... 29 2.4 Operating elements inside the cabin................... 30 2.4.1 Cabin verview........... 30 2.4.2 Steering clumn perating panel.................. 31 2.4.3 Operating panel right-hand side.................... 35 2.4.4 Left-hand perating panel.. 42 2.4.5 Operating panel n cabin rf.................... 43 2.4.6 Pedal system............ 48 2.4.7 Sun blind............... 50 2.4.8 Auxiliary tl............. 51 2.4.9 Driver's seat............. 52 2.5 Operating elements n the vehicle................... 54 2.5.1 Wing mirrr.............. 54 2.5.2 Fastener at the dirt hpper.. 55 2.5.3 Safety supprt........... 55 2.5.4 Water cnnectin fr cleaning the suctin turbine........ 56 2.5.5 Opening the flr flap and circulatin water hse......... 57 2.5.6 Hydraulic, water and electrical cnnectins............. 58 2.5.7 Cnnectrs at the frnt..... 58 2.5.8 Rear cnnectins......... 59 2.5.9 High pressure washer (ptinal)............... 60 3 Operatin.............. 62 3.1 Initial instructin.......... 62 3.2 Prir t starting up........ 62 3.3 Starting up the vehicle..... 63 3.4 Wrking with the sweeping system.................... 65 3.5 Wrking with the sweeping system.................... 67 3.6 Parking the vehicle........ 69 3.6.1 Parking after the end f wrking................. 69 3.6.2 Switching ff during breaks. 69 3.6.3 Stppages n accunt f malfunctins................ 69 3.7 Tpping up slutin....... 70 3.8 Tpping up the circulatin water.................. 70 3.9 Emptying the dirt hpper... 71 3.10 Cleaning the vehicle....... 72 3.11 Twing and transprtatin.. 73 6

Table f Cntents 3.11.1 Twing the vehicle........ 73 3.11.2 Transprtatin........... 74 4 Attachment devices...... 75 4.1 Structure f the sweeping system.................... 75 4.1.1 Installing the sweeping unit. 75 4.1.2 Installatin f the dirt hpper 79 4.2 Scrubber system cnstructin............. 83 4.2.1 Installatin f the scrubber unit.................... 83 4.3 Structure f the lading platfrm and the frnt cupling triangle................. 85 4.3.1 Installatin f the lading platfrm................... 85 4.3.2 Installatin f the frnt cupling triangle................. 87 4.4 Ballast.................. 88 4.4.1 Calculatin f the ballast... 89 5 Technical Data.......... 92 6 Maintenance and Servicing 98 6.1 Hak system maintenance schedule................ 99 6.2 Maintenance reprt...... 100 6.3 Maintenance plan........ 101 6.4 Engine................ 114 6.4.1 Checking the engine il level.................. 115 6.4.2 Changing the engine il and the engine il filter.......... 116 6.5 Fuel system............ 117 6.5.1 Fuelling the vehicle...... 118 6.5.2 Checking the water seperatr.............. 118 6.5.3 Changing the fuel filter.... 118 6.6 Air filter................ 119 6.6.1 Maintenance indicatr.... 120 6.6.2 Cleaning the filter insert... 120 6.6.3 Changing the safety cartridge............... 120 6.6.4 Pre-separatr and dust discharge valve............... 120 6.7 Cling system.......... 121 6.7.1 Cleaning the cling system122 6.7.2 Cver plate fr winter peratin.............. 122 6.7.3 Tpping up the clant.... 123 6.7.4 Changing the clant..... 124 6.8 Hydraulic system........ 125 6.8.1 Tpping up the hydraulic il 126 6.8.2 Exchanging the suctin returnline filter............... 126 6.8.3 Exchanging the hydraulic il and ventilatin filter.......... 127 6.9 Slutinsystem.......... 128 6.9.1 Tpping up the slutin tank.................. 129 6.9.2 Clean the strainer........ 129 6.9.3 Draining the slutin..... 129 6.9.4 Cleaning the spray nzzles 129 6.10 Sweeping system........ 130 6.10.1 Setting the sweeping pattern................ 131 6.10.2 Adjusting surface pressure fr the circular brushes...... 131 6.10.3 Adjustment f the vacuum nzzle................. 131 6.10.4 Adjusting the lcking device 131 6.11 Scrubber system........ 132 6.11.1 Changing the brushes.... 132 6.11.2 Adjusting the sealing strips 133 6.11.3 Changing the sealing strips 133 6.11.4 Cleaning the filters....... 134 6.11.5 Adjusting the dsing...... 135 6.12 Dirt hpper............. 136 6.12.1 Safety supprt.......... 137 6.12.2 Checking the rear dr seal 137 7

Table f Cntents 6.12.3 Cleaning the strainer..... 137 6.12.4 Cleaning the suctin turbine137 6.12.5 Tpping up the circulatin water................. 137 6.12.6 Raise the dirt hpper using the manual pump........... 137 6.13 Air-cnditining unit...... 138 6.13.1 Exchanging the cabin air filter.................. 139 6.13.2 Tpping up the refrigerant. 139 6.13.3 Cndenser fan.......... 140 6.13.4 Air-cnditining unit...... 140 6.14 Wheels and braking system 141 6.14.1 Wheel exchange........ 142 6.14.2 Checking the tire pressure. 142 6.14.3 Tpping up the brake fluid. 143 6.15 Windscreen wiper system. 144 6.15.1 Tpping up water........ 144 6.16 Electrical system........ 145 6.16.1 Fuses fr the circuit bard. 145 6.16.2 Relay fr circuit bard.... 146 6.16.3 Fuses in the switch cabinet 147 6.16.4 Relay in the terminal bx.. 147 6.16.5 Fuses fr prprtinal valve cntrl................ 148 6.16.6 Relay fr prprtinal valve cntrl................... 148 6.17 Lubricatin plan......... 149 EC Declaratin f Cnfrmity............ 153 8

Safety Infrmatin 1 Safety Infrmatin 1.1 Safety and warning symbls All sectins related t persnal safety, safety f the equipment and envirnmental prtectin are assigned the fllwing symbls thrughut the perating manual: Symbl Risks t... Definitin Safety infrmatin persns r prperty Safety infrmatin n preventing hazardus situatins caused by failure t fllw instructins r prescribed wrking prcedures accurately r at all. Nte the machine Imprtant infrmatin n handling the equipment in rder t maintain its functinality. Eclgical hazard the envirnment Eclgical hazard thrugh the use f substances which represent a ptential hazard t health and t the envirnment. 9

Safety Infrmatin 1.2 General infrmatin In additin t the infrmatin in this perating manual, the general, legally applicable industrial safety and accident preventin regulatins must als be bserved. Befre starting up the vehicle fr the first time, read the perating manual supplied with it thrughly as well as any separate manuals prvided with additinal r attachment devices, and bserve all the infrmatin when wrking. The machine may nly be perated, serviced and repaired by persnnel trained by Hak technical experts. Particular attentin shuld be paid t the infrmatin regarding safety. Technical expertise is the key t preventing errrs when perating the equipment and fr ensuring trublefree peratin. The perating manual must always be kept at the perating lcatin f the vehicle and, therefre shuld be kept in a safe place n the vehicle. If the machine is sld r leased, this dcumentatin as well as the registratin certificates are t be handed t the new wner/peratr. The transfer shuld be cnfirmed! The warning labels attached t the equipment prvide imprtant infrmatin cncerning safe peratin. Labels which are illegible r missing must be replaced. Registratin certificate 1 (vehicle license) and the perating manual have t be available at all times at the lcatin where the machine is perated and shuld therefre be carefully stred near the driver's seat. Original spare parts must be used t ensure safety. The Hak-Citymaster 1250 is equipped with a safety cabin (ROPS = Rll Over Prtectin Structure) accrding t 86/298/EEC 1.3 Operating infrmatin Check the peratinal safety f the vehicle each time befre starting it up! Clear any faults immediately! During peratin a first aid kit and an advance warning triangle has t be carried. Befre starting wrk, the peratr must be fully familiar with all features, perating and cntrl elements as well as their functins. Once the vehicle is actually in peratin it is t late t d this! The effectiveness f steering and brakes has t be checked daily at a safe lcatin befre starting wrk. Always wear heavy duty, nn-slip ftwear when wrking with the vehicle. The machine may nly be driven n thse areas which have been apprved by the cntractr r the persn appinted by him fr the deplyment f this machine. D nt use tires fr climbing n r ff - danger f slipping! When using the vehicle, it is essential t pay attentin t third parties, especially children. The vehicle is nt suitable fr clearing up hazardus, inflammable r explsive fluids, dust r substances. Remve the ignitin key t prevent unauthrized use f the vehicle. The cnditin and peratinal safety f the vehicle and wrking equipment have t be checked befre starting wrk. The vehicle must nt be used if it is nt in a prper wrking cnditin. 10

Safety Infrmatin Befre starting up the vehicle, adjust the driver's seat and mirrrs s that yu have a perfect view f the frnt and rear path f travel and the wrking area. Fr safety reasns, the driver's seat is equipped with a seat cntact switch. The functining f this seat cntact switch must nt be bypassed. The vehicle must nly be started, put int mtin and stpped frm the seat. It is frbidden t use the vehicle in ptentially explsive atmspheres. Always switch ff all the drives befre starting up the engine. D nt let the engine run in enclsed spaces. Risk f pisning! It is frbidden t transprt peple n the vehicle! It is frbidden t mve int the hazard areas f the machine (e.g. near the articulated jint, the attachment devices, belw the raised dirt hpper, tractr/trailer cmbinatin). The driving speed must always be adapted t the ambient cnditins and lad status. When driving up, dwn r acrss slpes, avid turning crners suddenly r in jerks. There is a risk f tipping when in an inclined psitin! The permitted grss vehicle weight and the permitted grss weight f the multi-purpse machine/trailer cmbinatin as well as the permitted axle lads must nt be exceeded under any circumstances. Check the fill level f the dirt hpper at frequent intervals. If the view is restricted, particularly when driving the machine backwards, a banksman is needed t signal t the driver. The banksman has t be within the driver s view at all times. When unblcking a jam in the suctin hse r cnnecting the (ptinal) hand suctin hse, the engine has t be switched ff and the suctin turbine has t be allwed t cme t a standstill. The dirt hpper may nly be raised in the vicinity f the cntainer. Never sweep when the dirt hpper is in an elevated psitin. Fr tilting the dirt hpper, the Hak- Citymaster 1250 has t be placed nt a sufficiently lad-supprting, hrizntal surface! Driving is nt allwed when the dirt hpper is tilted! Befre lwering, ensure that there is nbdy within the hazard zne! Nte that the steering behavir f an articulated vehicle is cnsiderably different t that f an rdinary car. Abrupt steering mvements at a high speed r an excessive speed in a bend can cause the Hak-Citymaster 1250 t verturn. D nt switch ff the engine when it is running at a high rtatinal speed; this may nly be dne in the event f malfunctining. Befre leaving the driver s seat, apply the parking brake. D nt turn the engine ff while leaving the attachment devices switched n. One f the tw side drs is used as an emergency exit. When driving the machine n public rads, the wrking lights are t be switched ff and the circular brushes and the vacuum nzzle are t be fully lifted int the transprt psitin. The maximum allwed twing speed is 2 km/h and the maximum allwed twing time is 30 minutes. Twing 11

Safety Infrmatin distance = 1 km. Befre leaving the driver s seat, apply the parking brake. The machine is nly suitable fr deplyment n level surfaces with a maximum slpe f 12% (Ttal weight fr tractr/trailer cmbinatin). 1.4 Maintenance infrmatin Operating persnnel must cmplete the necessary daily and weekly maintenance wrk. All ther maintenance wrk must be cmpleted at yur nearest Hak service center. The maintenance wrk and maintenance intervals prescribed in the perating manual must be adhered t. Befre cleaning and maintenance wrk, switch the engine ff and allw t cl dwn. Danger f burns frm ht surfaces. The parking brake is t be applied, the ignitin key is t be remved and the vehicle is t be secured against accidental starting up and unintended mvement. Suitable tls must be used fr cleaning and maintenance wrk. As required by the accident preventin rules, the vehicle has t be inspected by a recgnized technical expert at reasnable intervals (we recmmend at least annually), and als fllwing any mdificatin r repair, in rder t check that it is peratinally safe. Replacement parts have t cmply with the minimum technical requirements stipulated by the manufacturer. This is ensured by the use f riginal spare parts. During maintenance wrk when the dirt hpper is raised, the safety supprt has t be mved t the upper psitin and inserted. Prir t cleaning r servicing the machine r replacing parts, the equipment has t be switched ff. D nt use a steam cleaner r high pressure washer. D nt direct the water jet directly against electrical r electrnic cmpnents. Fr maintenance wrk, access can be gained via the drs in the side cver panel. If the Hak-Citymaster 1250 is jacked up with a jack, an additinal secure supprt is required. Nbdy may be n the Hak-Citymaster 1250 when it is jacked up r raised. D nt remve r replace tires r repair while still munted n the rim. Always g t a prper wrkshp fr wrk n tires and rims because they have specially trained persnnel and special safety tls. D nt carry ut any welding, drilling, sawing r grinding wrk n frame parts. Damaged parts may nly be replaced by specialist wrkshps apprved by Hak. Only use riginal fuses. Using fuses with a t high rating culd damage the electrical installatin and lead t fires. Regularly subject the brake system t a thrugh inspectin. Adjustments and repairs t the brake system may nly be cmpleted by specialist wrkshps apprved by Hak r by recgnized brake service wrkshps. Befre repairs t the hydraulic system lwer any attachments and depressurize the hydraulic system. Regularly subject the hydraulic system t a thrugh inspectin! Adjustment and repair wrk n the hydraulic system may nly be perfrmed in specialist Hak wrk- 12

Safety Infrmatin shps. Liquids (fuel, hydraulic il) culd escape under high pressure and penetrate the skin and cause severe injuries. Call fr medical assistance immediately t prevent infectins. Cautin when draining ht il - danger f scalding! Befre discnnecting the hydraulic lines, depressurize the system. Check all lines befre re-pressurizing the system. Hydraulic il escaping frm a small pening is nt very easy t see; fr this reasn use a piece f cardbard r wd when searching fr leaks. Regularly check the hydraulic hse cnnectins. Replace if any damage r signs f aging are discvered. The replacement lines have t cnfrm t the technical requirements stipulated by the device manufacturer. If transprted n a vehicle r trailer and during maintenance and repair wrk, the articulated jint has t be lcked by means f the lck plate. 1.5 Attachment devices Only attachments apprved by the manufacturer may be used. We will nt accept liability fr damage arising frm the use f unauthrized devices r accessries. Observe the infrmatin in the perating instructins fr the attachment devices. Handling, steering and braking as well as stability are influenced by attachment devices, trailers and the vehicle paylad (e.g. full dirt hpper). Fr this reasn, pay attentin t adequate steering and braking capability as well as stability. If attachments bscure the external lighting elements n the machine, r if the maximum distances accrding t StVZO are exceeded, additinal lights have t be attached t the vehicle (see infrmatin sheet n attachment devices StVZO 30, explanatry ntes 11 and 12). Fr the safe setting dwn f attachment devices, use the frames prvided fr this purpse. Cupling devices t the Hak-Citymaster 1250 is assciated with the risk f injury. Special cautin is t be applied in the area between the Hak-Citymaster 1250 and the attachment device. Only cnnect attachment devices t the fixtures prvided fr this purpse. Nbdy may be present between the Hak-Citymaster 1250 and the attachment device unless the Hak- Citymaster 1250 is secured against rlling by applying the parking brake r inserting wheel chcks. When driving n the rad with the attachment device raised, d nt perate the switch lever fr the pwer lift. Befre leaving the Hak-Citymaster 1250, lwer the attachment devices. When driving n the rad with the attachment device raised, the transprt lck n the attachment device has t be activated. When cnnecting attachment devices t the hydraulic system, ensure that the hydraulic hses are cnnected crrectly. Swapping the cnnectin can lead t reverse functining f the attachment device, e.g. mvement t the right rather than the left - risk f accident. The cnnectin f frnt r rear attachment devices must nt lead t the maximum ttal weight, the maximum axle lads r the lad-bearing capacity f the tires f the machine 13

Safety Infrmatin being exceeded. The frnt axle and the rear axle f the tractr/trailer cmbinatin (multi-purpse vehicle and trailer) always have t be laded with at least 20% f the empty weight. Befre purchasing an attachment, check that this cnditin is fulfilled by weighing the machine/ attachment cmbinatin. When cnnecting rear attachment devices, always ensure that there is an adequate lad n the frnt axle; if necessary, prvide ballast. The steering capability has t be maintained. When cnnecting frnt attachment devices with a weight > 160 kg, ensure that there is an adequate lad n the rear axles and prvide ballast. The ability t brake has t be maintained. When prviding ballast, bserve the lad-bearing capability f the tires and the necessary tire pressure. Cnnect attachment devices nly t the specified fixtures. When cnnecting devices, exercise particular cautin. Only start up any device when all the prtective equipment is in place and is perative. 1.6 Particular risks Safety equipment Never perate the Hak-Citymaster 1250 withut effective prtective equipment. (This includes all cver panels and the drs in the side panels). Re-fuelling Take the utmst care when handling fuel - increased risk f fire! Never fuel up clse t naked flames r ignitable sparks. D nt smke during fuelling. Switch ff the engine, remve the ignitin key and apply the parking brake befre fuelling. Never re-fuel in enclsed spaces. Clear up spilt fuel immediately. Electrical system Only use riginal fuses with the prescribed amperage. In the case f defects in the electrical installatin, switch the vehicle ff immediately and rectify the fault. Wrk n the electrical equipment may nly be carried ut by electricians wh have received the necessary training and in accrdance with the electrical engineering regulatins. Always discnnect the negative ple f the battery when wrking n the electrical installatin. The vehicle's electrical equipment must be inspected/checked at regular intervals. Defects, such as lse cnnectins and cable damage, must be rectified immediately. Observe the infrmatin in the perating manual prvided by the battery manufacturer. Never place any metallic bjects r tls n batteries - risk f shrt circuit! Cautin when handling battery acid - crrsive! Ensure sufficient ventilatin in the charging area when charging the batteries. Explsin hazard! 14

Safety Infrmatin 1.7 Installatin f electrical devices The machine is equipped with electrical cmpnents whse functin can influence ther devices n accunt f the emissin f electrmagnetic radiatin. Such interference can cause danger f injury if the fllwing safety infrmatin is ignred: When electric r electrnic devices and/ r devices r cmpnents are retr-fitted t the machine, and are cnnected t the n-bard electrical system, the user has the respnsibility t check himself whether the installatin culd cause interference t the vehicle electrnics r ther cmpnents. In particular, it has t be ensured that any retr-fitted electrical r electrnic cmpnents cnfrm t the EMC Directive in its valid versin and that they display the CE-mark. Fr the retr-fitting f mbile cmmunicatin systems (e.g. radi, telephne), in additin the fllwing cnditins have t be fulfilled: Only devices cnfrming t the natinal regulatins f the cuntry may be installed (e.g. BZT apprval in Germany). The device has t be permanently installed. Use f a mbile phne is nly allwed when the engine is at standstill and in cnjunctin with a separate external antenna. The sender unit has t be installed physically separated frm the vehicle electrnics. When installing the antenna, prper installatin with gd cnnectin t the vehicle grund ptential has t be ensured. 15

Safety Infrmatin 1.8 Envirnmental prtectin Adequate knwledge is required fr the safe handling f substances which culd represent a risk t health and the envirnment. Observe the applicable laws and lcal regulatins when dispsing f cleaning agents. During maintenance wrk and repairs, perating agents and filters have t be cllected in suitable cntainers and prperly dispsed f bserving the statutry and lcal regulatins. Leaked il, diesel fuel and lubricants etc. must nt enter int the sil. Otherwise this wuld create a serius risk f grundwater cntaminatin. Any cntaminatin frm leakages has t be cleared up withut delay and dispsed f prperly. Used filters usually have t be dispsed f as special waste depending n the filtered substance, e.g. fuel filters. Used batteries with the recycling symbl cntain reusable cmmdities. In accrdance with the symbl shwing the crssed-ut garbage bin, these batteries must nt be dispsed f in dmestic waste. Return and recycling have t be arranged with the authrized Hak dealer as required in 6 and 8 BattV! 16

Safety Infrmatin 1.9 Labels n the vehicle The fllwing safety and warning labels are attached t the vehicle at easily legible lcatins. Missing r illegible labels must be replaced immediately. Basic vehicle with lading platfrm and frnt cupling triangle Read the perating instructins (Fig. 1/ 1) Ratings plate (Fig. 1/3) Cmpany lg (Fig. 1/4) Greasing the articulated jint (Fig. 1/6) Articulated jint area (Fig. 1/7) Air pressure (Fig. 1/2) Parking brake (Fig. 1/5) 17

Safety Infrmatin 6 7 1 4 2 3 4 5 Fig.1 18

Safety Infrmatin Safety cabin (Fig. 2/1) Nise emissin value (Fig. 2/4) (with the sweeping system ptin) Engine/emergency steering prperties (Fig. 2/2) Risk f crushing (Fig. 2/5) Pressure washer (Fig. 2/3) 19

Safety Infrmatin 1 5 2 3 4 Fig.2 20

Safety Infrmatin Cmpany lg (Fig. 3/1) Articulated jint area (Fig. 3/4) Safety distance (Fig. 3/7) Speed (Fig. 3/2) Rtating parts (Fig. 3/5) Safety film, red/white (Fig. 3/8) Vehicle identificatin number (Fig. 3/3) 1433xxxxxxxx Pressure washer (Fig. 3/6) 21

Safety Infrmatin 5 6 1 4 1 7 2 3 Fig.3 22

Safety Infrmatin Basic vehicle with sweeping system Cmpany lg (Fig. 4/1) 2 Safety film, red/white (Fig. 4/2) 3 Dirt hpper certificate (Fig. 4/3) 1 2 Fig.4 23

Safety Infrmatin Basic vehicle with scrubber system Cmpany lg (Fig. 5/1) Ratings plate (Fig. 5/2) 1 2 Fig.5 24

Safety Infrmatin Setting dwn frame Ratings plate (Fig. 6/1) 1 Read the perating instructins (Fig. 6/ 2) 2 Fig.6 25

Operatin 2 Operatin 2.1 Overview frnt unit 1 Cabin with: - Air-cnditining unit - Steering clumn - Operating panels - Pedal system - Driver's seat 2 License plate bracket 3 Additinal wrking lights (ptinal) 4 Directin indicatr lamp (Frnt) with marker light 5 Wing mirrr (ptinally heated) 6 Dipped beam 7 Wrking lights 8 Windscreen wiper 9 Cupling triangle (ptinal) 10 Cnnectins fr frnt attachment devices 11 Slutin tank 12 Flashing beacn 5 6 7 8 9 4 3 2 1 12 10 Fig.7 26

Operatin 2.2 Overview rear sectin f the vehicle 1 Indicatr lamp, tail light and brake lamp 2 Cnnectins fr rear attachment devices 3 Assembling the lading platfrm (ptinal) 4 Trailer hitch either as bar cupling r ball head hitch (ptinal) 5 13-ple scket 6 Reversing lamp (ptinal) 3 2 1 2 5 4 6 1 Fig.8 27

Operatin 2.3 Functinal descriptin The mdels Hak-Citymaster 1250 and Hak-Citymaster 1250C can be cmbined with attachment devices and ptins fr a wide range f applicatins. The basic unit f the Hak-Citymaster 1250 is a single purpse machine fr sweeping r, if equipped with a crrespnding extensin attachment (with ptinal wet cleaning unit 1463), fr scrubbing The multi-purpse machine Hak-Citymaster 1250C ffers the fllwing applicatins: Sweeping Scrubbing (with ptinal wet cleaning unit 1463) Transprtatin Lawn mwing Flushing Snw sweeping Snw clearing Snw blwing Spreading The Classic vehicle type is equipped with warm water heating, the Cmfrt type has additinal air cnditining. If yu have any queries abut applicatins and the additinal ptins, yur Hak cntract partner will be available t yu at any time. 2.3.1 Sweeping system The sweeping system cntains the sweeping unit, vacuum nzzle and dirt hpper. The circular brushes n the sweeping unit sweep the material twards the jint-friendly vacuum nzzle. The wrking width and speed f rtatin fr the circular brushes can be adjusted hydraulically. The vacuum nzzle runs n rllers suspended flexibly and prtected against impacts between the frnt wheels and can be lifted hydraulically. Fr dust preventin an adjustable amunt f water is added frm the slutin tank. The spray nzzles are lcated at the frnt f the circular brushes in such a way that the water jet is directed in frnt f the circular brush t prevent dust. One nzzle is lcated inside the vacuum nzzle in rder t keep the intake pipe mist. In the case f carser debris the larger material flap can be perated via a ft lever. The debris is sucked int the dirt hpper by means f a suctin blwer. Fr dust preventin, the vacuum nzzle is supplied with additinal water frm the water circulatin system. The absrbed water is returned t the vacuum nzzle via a separatr system. Fr flexible cleaning an ptinal manual vacuum hse is prvided. 2.3.2 Scrubbing system The scrubbing system cmprises f scrubbing unit, vacuum nzzle and dirt hpper. The scrubbing unit sweeps the material twards the jint-friendly vacuum nzzle. The speed and surface pressure n the brushes can be hydraulically adjusted. The amunt f water supplied t the brushes can be adjusted. The vacuum nzzle runs n rllers suspended flexibly and prtected against impacts between the frnt wheels and can be lifted hydraulically. Fr increasing the duratin f wrk, a recycling system is available as an ptin. Here the dirt hpper is used as a water tank and the water is prcessed in a filtering system. In additin, a chemicals metering system fr 10 liter packages is available. Any mixing rati frm 1:6 t 1:512 is pssible. 28

Operatin 2.3.3 Hak-Citymaster 1250 fr transprtatin peratin Fr transprtatin peratin the Hak- Citymaster 1250 can be equipped wtih a lading platfrm and a trailer which can be pulled by means f a cupling system. The lading platfrm can be hydraulically tipped backwards. The side walls and the rear wall can be flded dwn. The dimensins f the lading platfrm are apprx. 1.200 x 910 x 170 mm. The paylad is 800 kg. Fr peratin with a trailer the Hak- Citymaster 1250 can be equipped with a bar cupling r a ball head hitch. The cupling can be attached t the vehicle rear withut tls. Fr the lading, please bserve the calculated system limits, see Chapter 4.4 - Ballast and fr the ttal grss weight bserve Chapter 5 - Technical Data. 2.3.4 Frnt cupling triangle The Hak-Citymaster 1250 can be equipped with a categry 0 frnt cupling triangle. The frnt cupling triangle can be used t supprt frntmunted attachments. The lifting, lwering and flating psitin functins can be activated by the buttns n the righthand perating panel. The flating psitin is required when a frnt attachment has t fllw the surface cntur. 2.3.5 High pressure washer The Hak-Citymaster 1250 can be equipped with a high pressure washer. The high pressure washer is suitable fr the nrmal cleaning f steps, platfrms, crners, edges and small cvered areas which therwise cannt be reached by the machine. The capacity f the high pressure washer is apprx. 15 l/ min. The wrking pressure is max. 140 bar. 29

Operatin 2.4 Operating elements inside the cabin 2.4.1 Cabin verview 1 Steering clumn perating panel 2 Operating panel, left-hand side 3 Operating panel, right-hand side 4 Operating panel, cabin rf 5 Pedal system 6 Sun blind 7 Auxiliary tl 8 Driver's seat 6 3 4 8 1 5 7 2 Fig.9 30

Operatin 2.4.2 Steering clumn perating panel 1 Indicatr light switch / hrn 2 Switch fr suctin turbine and water pump 3 Wrking lights 4 Flashing beacn 5 Hazard warning lights switch 6 Cntrl lamp, indicatr lamp 7 Cntrl lamp, water temperature 8 Cntrl lamp, battery charging cntrl 9 Cntrl lamp, preheating 10 Cntrl lamp, il pressure 11 Cntrl lamp, fuel 12 Lever fr slutin fr vacuum nzzle 13 Temperature display fr the hydraulic il 1 12 2 3 4 5 13 6 7 8 9 10 11 Fig.10 31

Operatin Cmbinatin switch (Fig. 10/1) This ffers the fllwing functins: Switch directin 1 = indicatr n right-hand side Switch directin 2 = indicatr n lefthand side Switch directin 3 = hrn Switch fr suctin turbine and water pump (Fig. 10/2) system the switch is used fr switching the suctin turbine and the water pump n and ff. The switch has tw 2 switching levels. 1. level: suctin turbine OFF 2. level: suctin turbine ON 3. level: suctin turbine and slutin pump ON When the slutin pump is switched n, the green cntrl light is illuminated. Switch fr the ptinal mwing unit (Fig. 10/2) If the vehicle is equipped with the ptinal mwing unit, this switch is used fr switching the mwing unit n and ff. If the peratr rises frm the driver s seat, the mwing unit immediately switches ff. If the peratr rises frm the driver s seat fr lnger than 1 secnd, a start-up lckup becmes activated. Switch (Fig. 10/2) is nly active when turned t the wrk mde! If the vehicle is equipped with the ptinal sweeping system r scrubbing 32

Operatin Switch fr wrking lamps (Fig. 10/3) This serves t switch the wrking lamps in the perating zne n and ff. The switch has three switch levels. 1. level: lwer wrking lights OFF 2. level: lwer wrking lights ON 3. level: upper wrking lights ON (ptinal) Switch fr flashing beacn (Fig. 10/ 4) This is used fr switching the flashing beacn n and ff. Switch fr hazard warning lamps (Fig. 10/5) This is used fr switching the hazard warning lamps n and ff. When the hazard warning lamps are switched n a cntrl lamp in the switch flashes. The hazard warning lamps als wrks when the the ignitin is switched ff. Cntrl lamp (green) indicatr lamps (Fig. 10/6) This cmes n when the indicatr lights are flashing and simultaneusly serves as a functin cntrl. Rapid flashing indicates a defective indicatr light. Cntrl lamp fr the temperature indicatr fr the cling water (Fig. 10/7 when the cling water level in the cmpensatin cntainer has fallen belw the minimum mark. At the same time, an acustical signal is sunded. Battery charging cntrl lamp (red) (Fig. 10/8) This cmes n when the vehicle is started up. After starting up the engine it has t switch ff again. The cntrl lamp cmes n when the cling agent is excessively warm r 33

Operatin Cntrl lamp (yellw) fr preheating (Fig. 10/9) Preheating is nly necessary at lw temperatures (e.g. <0 C). Abve 0 C the engine can be started immediately after turning the ignitin n. Then the preheating indicatr will extinguish. Starting the engine is nly pssible when the driver is sitting n the drive s seat. Fr safety reasns the Hak-Citymaster 1250 is equipped with a seat cntact switch. Cntrl lamp (red) fr engine il pressure (Fig. 10/10) ff engine and identify the cause. Cntrl lamp fr fuel indicatr (Fig. 10/11) The Hak-Citymaster 1250 is equipped with a fuel tank hlding apprx. 60 liters. When the tank cntents reaches the reserve zne, the cntrl lamp cmes n. Remaining quantity: apprx. 7.5 liters Lever fr slutin fr the vacuum nzzle (ptinal) (Fig. 10/12) Temperature display fr the hydraulic il (Fig. 10/13) The Hak-Citymaster 1250 is equipped with a temperature display fr the hydraulic il. When the hydraulic il becmes excessively ht, the pinter f the display mves int the red area. Switch ff the hydraulic functins but allw the engine t cntinue running! These are the ptential causes fr verheating: Cmbinatin cler cntaminated Outside temperature t ht Mixed hydraulic il This cmes n when the vehicle is started up. After starting up the engine it has t switch ff again. If the indicatr lamp des nt extinguish, immediately switch If the vehicle is equipped with the ptinal sweeping r scrubbing system, this lever is used fr pening r clsing the slutin supply fr the vacuum nzzle. Psitin I = pen Psitin = clsed 34

Operatin 2.4.3 Operating panel right-hand side 1 Slutin quantity fr scrubbing system (ptinal) 2 Speed adjustment fr circular brushes/circular scrubbers 3 Pressure adjustment (ptinal) fr frnt attachment devices 4 Key pad lifting, lwering and sideways mvement fr frnt attachment devices 5 Selectin switch fr wedge snwplw Selectin switch fr scrubbing system (ptinal) 6 3-ple scket 7 Operating hur meter Sweeping distance meter (ptinal) 8 Speed adjustment lever fr engine 9 Switch fr wing mirrr heating (ptinal) 10 Reversing signal ON/OFF (ptinal) 11 Ignitin switch 12 Reset switch fr perating hur meter 13 Cmpartment fr perating manual 14 Space fr installing a radi 7 12 4 5 6 3 8 9 14 2 1 10 11 13 Fig.11 35

Operatin Slutin quantity fr scrubbing system (Fig. 11/1) This is used fr adjusting the slutin quantity fr the scrubbing system. Speed adjuster fr circular brushes/ circular scrubbers (Fig. 11/2) This is used fr adjusting the speed as required during deplyment. Pressure adjustment (ptinal) fr frnt attachment device (Fig. 11/3) Key pad fr lifting, lwering and sideways mvements (Fig. 11/4) The key pad is used fr lifting, lwering and sideways mvements f the frnt attachment device. 1 4 3 2 Key 1: lifting Key 2: lwering (flating psitin) Fr the ptinal attachment devices: Key 3: mve inwards Key 4: mve utwards In rder t ensure the lifting functin fr wrk with the attachment devices, the speed adjustment lever (Fig. 11/8) has t be set t the preferred engine speed (2450 1/min). The knb with the ON/OFF switch is used fr switching n and adjusting the lad n the frnt attachment device. 36

Operatin Wedge snwplw selectin switch (Fig. 11/5) Fr the ptinal wedge snwplw, this selectin switch is used fr selecting the side f the wedge snwplw t be adjusted. The device is perated via the key pad (Fig. 11/4). Selectin switch n right-hand side This switch is used fr selecting the water supply (slutin r dirty water) fr the scrubbing unit. Selectin switch n left-hand side: dirty water Selectin switch n right-hand side: slutin In this setting the adjustment f the right-hand side f the wedge snwplw is preselected. Selectin switch n left-hand side In this setting the adjustment f the lefthand side f the wedge snwplw is preselected. Scrubbing system (ptinal) selectin switch (Fig. 11/5) 37

Operatin 3-ple scket (Fig. 11/6) The 3-ple scket is prvided fr unrestricted use, vltage supply max. 10A independent f the ignitin cntrl. The vltage supply fr the ptinal spreader is prvided via the 3-ple scket (fr this the ptinal wrking distance meter is required). Operating hur meter (Fig. 11/7) This is used t display the number f hurs f peratin. The meter nly wrks when the engine is running. After turning n the ignitin, the perating hur meter displays the ttal perating hurs. Then the perating hur display appears. Sweeping distance meter (ptinal) Functins: Ttal perating hurs Ttal kilmeters Wrking hurs Wrking kilmeters Time f day Speed By repeatedly, briefly pressing the lefthand key, the wrking hurs, wrking kilmeters, ttal perating hurs, ttal kilmeters and the speed are displayed respectively. In rder t reset the wrking hurs and the wrking kilmeter meter, they have t be displayed by pressing the lefthand key. In this case bth keys are pressed at the same time until after 3 secnds the display f the wrking hurs starts flashing and then, after a further 3 secnds, ges t zer. 38

Operatin Speed adjustment lever fr engine (Fig. 11/8) This serves t mdify the engine speed and t chse the driving mde. 1 2 3 4 1 Up t the first ntch 2 Past the first ntch 3 Befre the secnd ntch 4 End stp The changever frm the transprt mde t the wrk mde is nly allwed when the vehicle is at standstill. When changing the driving mde frm the transprt mde t the wrk mde n a slpe, the parking brake has t be applied in rder t prevent rlling backwards during the changever prcess. The speed adjustment lever has t be lifted up t mve it acrss the stp. Driving speeds Transprt mde (frnt-wheel drive) - 0-30 km/h frwards - 0-12 km/h reversing Wrk mde (all-wheel drive) - 0-16 km/h frwards - 0-10 km/h reversing Driving mde Befre the first ntch: engine idling; transprt mde (frntwheel drive); autmtive driving; wrking hydraulics blcked Pst the first ntch: engine idling; wrk mde (all-wheel drive); autmtive driving; wrking hydraulics active Befre the secnd ntch: preferred engine speed (2450 1/ min); wrk mde (all-wheel drive); autmtive driving; wrking hydraulics active End stp: max. engine speed (2750 1/min); wrk mde (all-wheel drive); autmtive driving; wrking hydraulics active 39

Operatin Autmtive drive By pressing dwn the acceleratr pedal the engine speed and travel speed are increased tgether. Utilize this mde when driving n the rad r when carrying ut wrk which des nt require a cnstant wrking speed fr the wrking device. All-wheel drive Under difficult cnditins, e.g. snw, ice r difficult surface cnditins, starting the vehicle mvement can be imprved by means f the all-wheel drive. In additin t the frnt axle the rear axle is als driven Maximum travel speed If the speed adjustment lever (Fig. 11/8) is between the first and the secnd ntches, increasing the pressure n the acceleratr pedal can briefly increase the engine speed t a maximum f 2450 1/min with a crrespnding higher travel speed (verriding the manual lever setting). After returning the acceleratr pedal the engine returns t the previusly set engine speed. The buttn is used fr switching the wing mirrr heating n r ff. Rtary switch fr the reversing signal (ptinal) (Fig. 11/10) The ptinal reversing signal can be switched n and ff with the rtary switch. When reversing, a signal is sunded and the reversing lamp lights up. Buttn fr wing mirrr heating (ptinal) (Fig. 11/9) 40

Operatin Ignitin switch (Fig. 11/11) I S 0 P The ignitin switch serves t start up the engine and t switch the electrical system n and ff. The ignitin switch has fur psitins: P: warning indicatrs, illuminatin, rtating beacn and interir lamp functining. The key can be remved. The P psitin is reached frm the 0 psitin. Push the key in whilst turning it t the left. 0: the electrical system and the engine are switched ff. The key can be remved I: the electrical system and the engine are switched n S: start up engine. Repeat ignitin lck: fr starting up again, the ignitin key first has t be returned t the 0 psitin. D nt repeat the start-up prcess mre ften than 3 times, rather allw the starter mtr t cl dwn. After starting up the cld engine, allw it t warm up with a slightly increased idling speed. At ambient temperatures f - 10 C warm up fr apprx. 20 minutes, frm + 10 C warming up is n lnger necessary. When starting up the engine, the driver has t sit n the driver s seat. During the start-up prcess d nt push dwn the acceleratr pedal! Reset switch fr perating hur meter (Fig. 11/12) This is used fr resetting the display f the hurs per day t zer n the perating hur meter. 41

Operatin 2.4.4 Left-hand perating panel 1 2 Filling pening fr windscreen washer system (Fig. 12/1) This is used fr filling the liquid int the windscreen washer system. At temperatures belw 0 C degrees use an antifreeze. Spray fr circular brushes (Fig. 12/2) Fr the cntrl f the water flw t the spray nzzles fr the circular brushes. The water pump must be switched n! Fig.12 3 4 Lcking lever fr circulatin water t the vacuum nzzle (Fig. 12/3) This serves t blck the circulatin water t the vacuum nzzle. Lever dwn = water supply blcked Lever up = water supply unblcked Manual lever fr parking brake (Fig. 12/4) This is used fr applying the parking brake. The lever is lcked after it is pulled up. 42

Operatin 2.4.5 Operating panel n cabin rf 1 Heating valve 2 Air-cnditining unit (Cmfrt) 3 Rtary switch, fresh air / heating fan 4 Air flw penings 5 Cntrl lamp fr parking brake 6 Indicatr cntrl lamp trailer/ spreader (ptinal) 7 Cntrl lamp fr hydraulics temperature 8 Cntrl lamp fr dirt hpper lifted 9 Pre-selectin switch fr pushing dwn the frnt attachment device / rapid emptying fr rear-munted spreader 10 Buttn fr lifting and lwering the dirt hpper 11 Dipped beam / side lamps 12 Switch / buttn fr windscreen washer system 13 Interir lamp 14 Cntrl lamp fr lad indicatr (ptinal) 2 3 1 4 5/6 7/8 9 13 12 14 11 10 Fig.13 43

Operatin Cab heating The Hak-Citymaster 1250 is equipped with a fresh air heater system. The ventilatr system has a 3-stage regulatr. The fresh air is taken in frm the utside thrugh the ventilatin slts behind the license plate and blwn int the cabin. The air flw penings (Fig. 13/4) fr the supply f warm r cld air are adjustable s that the air flw can be directed against the windscreen in rder t keep the windscreen free f cndensatin and ice. The regulatin f the heating is dne by means f a rtating valve (Fig. 13/1). Rtating valve fr heating (Fig. 13/1) It is used fr switching n and ff the heating and fr cntrlling the heating. Switch fr air cnditining system (Cmfrt) (Fig. 13/2) This is used fr switching the air cnditining system n and ff. The air cnditining system nly wrks when the rtary switch (Fig. 13/3) is turned frm 0 t ne f the fan levels. Rtary switch fr fan (Fig. 13/3) This is used fr switching the fan n and ff and fr setting the fan level. Switched n = levels 1 t 3 Switched ff = level 0 The fan can be used fr blwing fresh air r warm air, when the heating is switched n, r cld air, when the aircnditining unit is switched n, int the cabin. Air flw penings (Fig. 13/4) These are the utlets fr the warm r cld air and are adjustable s that the air flw can be directed against the windscreen in rder t keep the windscreen free frm cndensatin and ice. 44

Operatin Air-cnditining unit The Hak-Citymaster 1250 (Cmfrt) is equipped with an air-cnditining unit. The air-cnditining unit is perated as fllws: Rtating valve fr heating (Fig. 13/1) It is used fr switching n and ff the heating and fr cntrlling the heating. When the air-cnditining unit is switched n the rtating valve (Fig. 13/1) has t be turned t OFF. Switch fr air-cnditining unit (Fig. 13/2) This is used fr switching the air-cnditining unit n and ff. The air-cnditining unit nly wrks when the rtary switch (Fig. 13/3) is turned frm 0 ne f the fan levels. Rtary switch fr the fan (Fig. 13/3) This is used fr switching the fan n and ff and fr setting the fan level. The fan can be used fr blwing fresh air r warm air, when the heating is switched n, r cld air, when the aircnditining unit is switched n, int the cabin. The rtary switch (Fig. 13/3) autmatically switches the aircnditining unit dwn t level 2 if it is set t level 3. If the windscreen r the dr windws are cvered in cndensatin, switch n the aircnditining unit until the cndensatin has disappeared. Only switch the air-cnditining unit n when the drs are clsed. Allw the air-cnditining unit t run nce a week fr apprx. 5 minutes, even in winter. The air-cnditining unit remves misture frm the cled air (cndensatin). Fr this reasn, it is nrmal fr a small puddle t frm under the vehicle if it is standing still. Cndensatin can leak ut frm under the frnt bars, the cndenser fan behind the cabin and the air-cnditining unit in the engine cmpartment. 45

Operatin Cntrl lamp fr parking brake (red) (Fig. 13/5) This cmes n when the parking brake is applied while the ignitin is n. As sn as the parking brake is released, it has t g ut. Cntrl lamp fr hydraulic il temperature (red) (Fig. 13/6) It cmes n when the hydraulic il reaches an excessive temperature, in additin a warning signal is sunded. Cntrl lamp fr dirt hpper (red) (Fig. 13/7) This cmes n when the dirt hpper is raised. It shuld g ut after lwering it nt the limit switch. Switch fr surface pressure / rapid emptying f the rear spreader (Fig. 13/8) The switch has three settings: Psitin 1: Adjustment fr surface pressure fr frnt attachment device. When pressing key 2 n the key pad (Fig. 11/4) dwn, the supprt fr the frnt attachment devices is pushed dwn at full pressure. This functin is indicated by the cntrl lamp in the switch. If the ptinal scrubber system r snw plugh are available, in this switch psitin the surface pressure can be adjusted by means f the rtary switch (Fig. 11/3). Neutral psitin: The surface pressure adjustment fr the frnt attachment device can be reduced. If the ptinal scrubber system is available in this switch psitin the pressure release can be adjusted by means f the rtary switch (Fig. 11/3). If the wrk is interrupted, turn the surface pressure adjustment fr the frnt attachment device t zer! Psitin 2: Rapid emptying f the rear spreader. Switches the hydraulic circuit 2 t the maximum flw rate. 46

Operatin Switch fr the lifting and lwering f the dirt hpper (Fig. 13/10) Switch/buttn fr windscreen washer system (Fig. 13/12) Switch fr interir lamp (Fig. 13/13) This is used fr switching n and ff the interir lamp. This is used fr lifting and lwering the dirt hpper. Switch fr the dipped beam and the side lamps (Fig. 13/11) This is used fr switching n and ff the dipped beam and the side lamps. The switch has three psitins: Psitin 1: Dipped beam/side lamps OFF Psitin 2: Side lamps ON Psitin 3: Dipped beam/side lamps ON This switch is used fr switching n and ff the windscreen wiper and the windscreen washer pump. The switch has three psitins: Psitin 1: Windscreen wiper ON, interval wiper cntrl OFF Psitin 2: Windscreen wiper/windscreen washer pump OFF Psitin 3: By briefly pressing the buttn, interval peratin is started. Pressing nce again ends interval peratin. Lnger pressing switches n the windscreen washer pump and activates the windscreen wiper. When there is a danger f freezing, pur antifreeze int the water cntainer. 47

Operatin 2.4.6 Pedal system 1 Acceleratr pedal, frwards 2 Acceleratr pedal, reverse 3 Service brake 4 Differential lck (ptinal) 5 Larger material flap 5 4 3 2 1 Fig.14 48

Operatin Acceleratr pedal fr driving frwards (Fig. 1/1) This is used fr cntinuusly mdifying the driving speed when driving frwards. Pressing dwn the acceleratr pedal increases the travel speed. When the pedal is released it returns autmatically t the zer psitin and the machine cmes t a standstill. Drive dwn slpes with special care and cautin. Always apply the parking brake when leaving the driver s seat. Acceleratr pedal fr reversing (Fig. 1/2) This is used fr cntinuusly mdifying the driving speed when reversing. Pressing dwn the acceleratr pedal increases the travel speed. When the pedal is released it returns autmatically t the zer psitin and the machine cmes t a standstill. Service brake (Fig. 1/3) When the acceleratr pedal (ging frwards r reversing) is released, the vehicle rapidly reaches standstill n accunt f the hydrstatic braking effect. If this braking effect is nt sufficient, the service brake can be applied in additin. Differential lck (Fig. 1/4) (ptinal) If the surface is unfavrable, the differential lck can be switched n during all-wheel peratin. This ensures that the blcked wheel is supplied with the maximum pump pressure. The differential lck is perated by means f a ft perated buttn. The ft pressure buttn has t be kept pressed dwn in rder t make the functinality available. Activating the differential lck is nly pssible in the wrk mde. Larger material flap (Fig. 1/5) (ptinal) If carse dirt is fund in frnt f the sweeping unit, it is pssible t lift the larger material flap n the vacuum nzzle by pressing a pedal. The pedal is held up by a stp ntch. This pedal cannt be perated when the vacuum nzzle is raised. 49

Operatin 2.4.7 Sun blind In rder t prtect the driver frm having his view t the frnt affected by slar radiatin, the Hak-Citymaster 1250 is equipped with a sun blind. Fr adjusting the blind, it has t be pulled dwn by its handle (Fig. 15/1) until the ptimum psitin fr the driver is reached. The sun blind is then attached t the windscreen by pushing it with the attachment buttn (Fig. 15/2) nt the windscreen. 2 1 Fig.15 50

Operatin 2.4.8 Auxiliary tl In the cabin beneath the driver s seat an auxiliary tl is kept (Fig. 16/1). This auxiliary tl has the fllwing functins: In the event f functin failure f the Raise dirt hpper key, the dirt hpper can be manually raised using the auxiliary tl, see the chapter n maintenance and servicing. With the auxiliary tl, carse dirt can be remved frm the vacuum nzzle and vacuum nzzle line. If there is a blckage in the vacuum nzzle d the fllwing: 1. Lift the larger material flap n the vacuum nzzle by pushing the pedal and raise the sweeping unit. 2. Use the auxiliary tl (Fig. 16/1) t carefully clean the vacuum nzzle. 3. Lwer the sweeping unit and clse the larger material flap n the vacuum nzzle. Fig.16 1 51

Operatin 2.4.9 Driver's seat 1 Adjustable armrests 2 Rapid weight adjustment 3 Lever fr lngitudinal seat adjustment 4 Adjustment fr the backrest 5 Adjustable lumbar supprt 6 Safety belt 7 Adjustable backrest extensin 6 5 1 2 3 4 Fig.17 52

Operatin Adjustable armrests (Fig. 17/1) The armrests can be flded in and their inclinatin can be adjusted. By rtating the wheel the inclinatin can be adjusted. Rapid weight adjustment (Fig. 17/2) Fr ptimum suspensin, the driver's seat has t be adjusted t the driver s weight. Lever up = increase driver weight Lever dwn = decrease driver weight The suspensin is adjusted ptimally when the indicatr is in the center. Fr safety reasns, the driver's seat is equipped with a seat cntact switch which must nt be bypassed. Lever fr adjusting the seat psitin (Fig. 17/3) This is used fr changing the psitin f the seat. Pull the lever up = the seat is unlcked. Mve the seat frwards r backwards. Allw the lever t lck in again after the adjustment is cmplete. Adjustment f the backrest (Fig. 17/4) The lever is used fr adjusting the backrest. Fr making the adjustment, yu shuld sit n the driver's seat. Pull the lever upwards with yur left hand. By leaning the upper bdy backwards yu will adjust the backrest backwards (tilted psitin). If yu mve yur upper bdy frwards yu adjust the backrest frward (vertically). Once yu have reached the ptimum psitin fr the backrest, release the lever. It will then lck t the desired psitin. Pay attentin that the backrest des nt rub against the cabin rear wall!. Adjustable lumbar supprt (Fig. 17/5) By turning the wheel n the backrest the lumber supprt can be adjusted. Safety belt (Fig. 17/6) Fr ptimum effect f the safety belt ensure an upright seating psitin and crrect belt psitining. Adjustable backrest extensin (Fig. 17/7) By pressing the buttn n the rear f the backrest extensin the height f the backrest can be precisely fitted t the driver s height. 53

Operatin 2.5 Operating elements n the vehicle 2.5.1 Wing mirrr The wing mirrrs serve t bserve the rear wrking area and traffic. Adjust the wing mirrr (Fig. 18/1) in such a way that the rad and the rear wrking area can be fully viewed. Heated wing mirrrs are ptinally available. Always check the mirrr adjustment befre starting t drive, if necessary, adjust. 1 Fig.18 54

Operatin 2.5.2 Fastener at the dirt hpper Befre emptying the dirt hpper the cver with the fasteners (Fig. 19/1) has t be pened. 2.5.3 Safety supprt During maintenance wrk the dirt hpper always has t be raised t its high psitin and the safety supprt (Fig. 19/2) has t be inserted at the hydraulic cylinder. 1 2 Fig.19 55

Operatin 2.5.4 Water cnnectin fr cleaning the suctin turbine The water cnnectin (Fig. 20/1) n the dirt hpper is used fr cleaning the suctin turbine. 1 Fig.20 56

Operatin 2.5.5 Opening the flr flap and circulatin water hse The perating elements are underneath the dirt hpper. The dirt hpper must be raised. T clean the circulating water system, pen the circulatin water hse and the flr flap. Lsen hse fitting (Fig. 21/3) and remve the baynet fitting (Fig. 21/4). Unlck the flr cver using the lever (Fig. 21/2) and pen using the lever (Fig. 21/1). 1 2 3 4 Fig.21 57

Operatin 2.5.6 Hydraulic, water and electrical cnnectins 2.5.7 Cnnectrs at the frnt 1 Sideways mvement f frnt attachment device (frwards/backwards) 2 Sideways mvement f frnt attachment device (frwards/backwards) 3 7-ple encding cnnectr (series) 12-ple encding cnnectr (with ptinal scrubber system) Hydraulic circuit 2 (max. 20 l/min): 4 Prprtinal cntrl supply line 5 Prprtinal cntrl return line 6 Lifting the vacuum nzzle 7 Water cnnectin fr circular brushes Hydraulic circuit 1 (max. 46 l/min): 8 Wrking pump supply line (e.g. mwer) 9 Wrking pump return line (e.g. mwer) 1 2 3 4 5 6 7 8 9 Fig.22 58

Operatin 2.5.8 Rear cnnectins 1 Scket 13-ple fr spreader illuminatin Hydraulic circuit 1 (46 l/min): 2 Spreader supply line 3 Spreader return line Hydraulic circuit 2 (20 l/min): 4 Mwing vacuum cntainer return line 5 Mwing vacuum cntainer supply line 6 7-ple encding cnnectr (fr cnnectin f rear attachment devices) 7 Scket 7-ple fr the trailer peratin 1 2 3 2 7 4 5 6 Fig.23 59

Operatin 2.5.9 High pressure washer (ptinal) 1 High pressure washer 2 Spray lance 3 High pressure hse 4 Water filter 5 Switch valve 6 Speed adjustment fr circular brushes 7 Rtatinal speed adjustment lever fr engine 8 Frnt attachment buttn 9 Ignitin switch 10 Pressure cntrller 6 7 8 2 9 10 5 1 3 4 Fig.24 60

Operatin Befre starting up Turn ff the engine befre cnnecting the high pressure washer (Fig. 24/1)! Befre starting up, carry ut the fllwing tasks: Fill up the slutin tank Check the water filter (Fig. 24/4) Turn the switch valve (Fig. 24/5) at the terminal bx t high pressure washer perating mde Install the high pressure hse (Fig. 24/3) between the high pressure washer (Fig. 24/1) and the spray lance (Fig. 24/2). Wrking with the high pressure washer High pressure jets can be dangerus if used inapprpriately. The jet must never be directed twards peple, active electrical equipment r the device itself! 1. Start up the engine with the ignitin switch (Fig. 24/9). 2. Turn the adjustment lever (Fig. 24/7) t the preferred engine speed. 3. Adjust the speed f the circular brushes (Fig. 24/6) t the maximum speed. 4. Lwer the frnt attachment by pressing the buttn (Fig. 24/8) (high pressure washer is switched n). 5. The wrking pressure can be pre-adjusted with the pressure cntrller (Fig. 24/10). 61

Operatin 3 Operatin 3.1 Initial instructin Instructins t peratrs are required befre putting the machine int service. Only technicians frm yur lcal authrized Hak dealer are permitted t give initial instructins n hw t use the Hak-Citymaster 1250. The manufacturing plant will ntify the dealer immediately after delivering the machine, and the dealer will cntact yu t arrange a date. 3.2 Prir t starting up Carry ut the fllwing checks befre starting the Hak-Citymaster 1250: 1. Lcking strap Befre cmmissining, the lcking strap has t be detached frm the lcking blt and be mved t the wrking psitin. When the lcking strap is inserted, the vehicle cannt be steered. 2. Checking the fuel Check the fuel indicatr, if necessary tp up the fuel. 3. Checking the engine il Check the il level using the dipstick, if necessary, tp up engine il. 4. Checking hydraulic il Check the il level n the fill level indicatr, if necessary, tp up the hydraulic il. 5. Checking the clant Check the clant level in the clant cmpensatin tank, if necessary, tp up the clant. 6. Check the tire pressure, see Technical Data 7. Brake In rder t check the functining f the brake pedal, check after abut half the pedal travel and when pushing hard whether firm resistance is encuntered at the pedal. Test the braking effect while driving slwly. During the braking test watch ut fr traffic at the rear! 8. Steering In rder t check functining mve the steering wheel back and frth and check whether mvement is seen at the articulated steering jint. 9. Illuminatin Check the functining f all lighting elements n the vehicle. 10.Adjusting the wing mirrr. If necessary, switch n wing mirrr heating. 62

Operatin 3.3 Starting up the vehicle The fllwing safety infrmatin has t be bserved! Operating manual, first-aid kit and advance warning triangle are t be carried in the vehicle at all times. The Hak-Citymaster 1250 may nly be perated by suitable persnnel wh have been trained t perate the equipment, have prven their capability t perate the vehicle t the satisfactin f the cntractr r persn appinted by him, and have been explicitly charged by him t perate the machine. It is frbidden t transprt peple n the vehicle! The driving speed must always be adapted t the ambient cnditins and lad status. In the transprt mde n public rads, the wrking lamps are t be switched ff. Driving behavir and the ability t steer and brake effectively are influenced by the lad and the attachment devices. Fr this reasn, ensure that the machine remains adequately steerable and able t be braked. When attaching devices, care is t be taken that under n circumstances the permissible lad n the frnt and rear axles and the ttal weight are exceeded. During the cupling prcess ensure that there are n peple within the hazard zne It is frbidden t mve int the hazard areas f the machine (e.g. near the articulated jint, the attachment devices, belw the raised dirt hpper, tractr/trailer cmbinatin). The vehicle must remain steerable. If in dubt, the vehicle has t be weighed tgether with the ttal weight f the attachment device. The attachment devices are t be raised int the transprt psitin and secured there. The dirt hpper is t be fully lwered. The engine can nly be started frm the driver s seat. When traveling never leave the driver s seat. D nt let the engine run in enclsed spaces. Ensure adequate visibility. At ambient temperatures f -10 C the engine has t be allwed t warm up fr apprx. 20 minutes. Frm +10 C, warming up is n lnger necessary. 63

Operatin Fr driving, the fllwing perating elements are t be perated: Prcedure: 1. All perating levers and switches have t be in the zer psitin. 2. The vehicle's parking brake must be applied. 3. Adjust the driver's seat. 4. Start up the engine with the ignitin key. 5. Pre-select the driving mde. Transprt mde (0 t 30 km/h) r wrk mde (0 t 16 km/h). 6. Release the parking brake. 7. Slwly push the acceleratr pedal fr the desired directin and speed dwn; the vehicle will start mving. 64

Operatin 3.4 Wrking with the sweeping system 1 Circular brushes 2 Vacuum nzzle 3 Slutin tank 4 Dirt hpper 5 Ignitin lck 6 Speed adjustment lever fr engine 7 Suctin turbine / slutin pump 8 Lifting/lwering/sideways mvement 9 Speed adjustment fr circular brushes 10 Surface pressure frm circular brushes (thumb screws) 11 Water flw at spray nzzles 12 Lever fr slutin fr vacuum nzzle 13 Flashing beacn 14 Driving lamps 15 Acceleratr pedal/larger material flap 16 Cvers fr dirt hpper 17 Auxiliary tl 18 Lever fr circulatin water system 19 Spring pin circular brush I S 0 P 1 4 3 2 6 7a 7b 8 9 10 11 12 13 14 18 17 15a 15b 4 16 19 Fig.25 1 3 65

Operatin Check befre starting wrk: Check the spray nzzles n the circular brushes (Fig. 25/1) and n the vacuum nzzle (Fig. 25/2). Tp up the slutin tank (Fig. 25/3). The filling vlume is apprx. 170 liters. Check the strainer n the slutin tank (Fig. 25/3). Tp up the dirt hpper (Fig. 25/4) with apprx. 150 liters f circulatin water (water level apprx. 10 cm abve flr flap). Check whether the circulatin water is flwing, if necessary remve any blckages. Prcedure: 1. Start up the vehicle (Fig. 25/5) and drive t the jb lcatin. 2. Set the speed adjustment lever (Fig. 25/6) t the preferred speed 3. Switch n the suctin turbine (Fig. 25/7a). 4. Lwer the sweeping unit (Fig. 25/8). 5. Adjust the circular brush speed n the speed adjuster (Fig. 25/9). 6. Check the circular brush surface pressure using the thumb screws (Fig. 25/10). 7. Open the circulatin water system (Fig. 25/18). 8. Switch n the slutin pump (Fig. 25/7b) and adjust the water flw fr the spray nzzles (Fig. 25/ 11) in such a way that dust frmatin in the sweeping area is ptimally prevented. 9. Open the water valve (Fig. 25/12) fr misturizing the suctin pipe when necessary. 10.Switch n the flashing beacn (Fig. 25/13). 11.If necessary, switch n the driving light (Fig. 25/14). 12.Slwly push dwn the acceleratr pedal (Fig. 25/15a) until the vehicle starts mving; the speed is increased if the pressure n the pedal is increased. Open the circulatin water valve: befre pening, switch n the suctin turbine. Clse the circulatin water valve: Clse the circulatin water valve first, then switch ff the suctin turbine. D nt exceed the permitted ttal weight. Check the fill level f the dirt hpper at frequent intervals. Causes f malfunctining The fllwing factrs might lead t prblems in the suctin system: The dirt hpper is full. Cvers (Fig. 25/16) n the dirt hpper fr the manual suctin hse nt crrectly put in place. Dirt hpper lck nt clsed. If there is a blckage in the vacuum nzzle, use the auxiliary tl (Fig. 25/17) t carefully clean the vacuum nzzle, see paragraph 2.4.8. The cirkular brushes cannt be pivted in. Check the heavy duty spring pin (Fig. 25/19); change it, if necessary. The heavy duty spring pin is a predetermined breaking pint and must nt be mdified! 66

Operatin 3.5 Wrking with the sweeping system 1 Scrubber unit 2 Vacuum nzzle 3 Slutin tank 4 Dirt hpper 5 Ignitin lck 6 Speed adjustment lever fr engine 7 Suctin turbine 8 Lifting/lwering/sideways mvement 9 Speed adjuster fr circular scrubbers 10 a) Adjustment f surface pressure fr circular scrubbers b) Changever apply pressure/ release pressure 11 Water flw t scrubber unit 12 Dirt water/slutin 13 Flashing beacn 14 Driving lamps 15 Acceleratr pedal/larger material flap 16 Cvers fr dirt hpper 17 Auxiliary tl 18 Lever fr circulatin water system 19 Recycling system (ptinal) I S 0 P 1 4 3 2 5 6 7 8 9 10a 10b 17 1 19 11 12a 12b 13 14 2 18 3 15a 4 15b 16 Fig.26 67

Operatin Check befre starting wrk: Check the metering and the filter elements n the recycling system (Fig. 25/19). Check the strainer at the slutin tank (Fig. 25/3). Tp up the slutin tank (Fig. 25/3). The filling vlume is apprx. 170 liters. Fill the dirt hpper (Fig. 25/4) with apprx. 200 liters f circulatin water. Prcedure: 1. Start up the vehicle (Fig. 25/5) and drive t the jb lcatin. 2. Set the speed adjustment lever (Fig. 25/6) t the preferred speed. 3. Switch n the suctin turbine (Fig. 25/7). 4. Lwer the scrubber unit (Fig. 25/8). 5. Switch n the water fr the scrubber unit using the rtary switch (Fig. 25/11) and adjust the water flw. 6. Adjust the scrubber speed at the speed adjuster (Fig. 25/9). 7. Preselect surface pressure r the relief f the surface pressure exerted by the scrubbers using switch (Fig. 25/10b) and turn it n and adjust it using the rtary switch (Fig. 25/10a). 8. Switch n the flashing beacn (Fig. 25/13). 9. Switch n driving lamps if required (Fig. 25/14). 10.Slwly press dwn the acceleratr pedal (Fig. 25/15a) until the vehicle starts mving; the speed increases as the pressure n the pedal is increased. Switch n the the recycling system (ptinal) 1. Fill the dirt hpper with a maximum f 200 liters f water. 2. Cnnect the cupling fr the circulatin water supply at the dirt hpper t the circulatin water cupling fr the scrubber unit. 3. Cnnect the cupling at the slutin supply t the slutin cupling n the scrubber unit. 4. Using the selectin switch (Fig. 25/12) n the left panel, switch frm slutin peratin (Fig. 25/12b) t circulatin water peratin (Fig. 25/12a). D nt exceed the permitted ttal weight. Check the fill level f the dirt hpper at frequent intervals. Causes f malfunctining The fllwing factrs might lead t prblems in the suctin system: The dirt hpper is full. Cver (Fig. 25/16) n the dirt hpper fr the manual hse nt prperly clsed. Dirt hpper lck nt clsed. Blckage in the suctin system. If there is a blckage in the vacuum nzzle, use the auxiliary tl (Fig. 25/17) t carefully clean the vacuum nzzle, see paragraph 2.4.8. 68

Operatin 3.6 Parking the vehicle 3.6.1 Parking after the end f wrking Befre leaving the vehicle, the driver has t set all peratr cntrls t their zer psitin, prtect the vehicle against unintended rlling away and secure it against unauthrized use. The driver has t ensure that the Hak-Citymaster 1250 is parked n a firm surface. After full lad peratin, allw the diesel engine t cntinue idling fr 1-2 minutes. 1. Allw the acceleratr pedal t return t the zer psitin r take the ft f the pedal. The hydrstatic drive will brake the vehicle until standstill. If this braking effect is nt sufficient, the service brake can be applied in additin. 2. Apply the parking brake. 3. Mve the speed adjuster t the idling psitin. 4. Switch the engine ff and remve the ignitin key. 5. If necessary, lck the driver s cabin. On slpes prtect the Hak- Citymaster 1250 in additin against rlling away; use chcks. D nt switch the engine ff while the attachment device is switched n. 3.6.2 Switching ff during breaks Even during shrt breaks in his wrk the driver has t mve all peratr cntrls t the zer psitin befre he leaves the vehicle. Apply the parking brake and prtect against unauthrized use. 3.6.3 Stppages n accunt f malfunctins If any malfunctin ccurs, the engine f the Hak-Citymaster 1250 has t be stpped immediately. A vehicle brken dwn n a public rad has t be made safe by means f the hazard warning lights and the advance warning triangle. If the electrical system has failed, the vehicle has t be made safe by means f the warning lamp. 69

Operatin 3.7 Tpping up slutin Remve the cver and tp up the slutin tank until the fill level indicatr shws that the maximum has been reached. The filling vlume is apprx. 170 liter. Frm the public water supply, water frm the mains may nly be filled via the D hse cnnectin! At temperatures belw 0 C (risk f freezing), the water has t be drained frm all waterfilled cmpnents! 3.8 Tpping up the circulatin water In rder t allw peratin t cntinue fr as lng as pssible, apprx. 200 liters f water shuld be filled int the dirt hpper. At temperatures belw 0 C degrees (risk f freezing), the water has t be drained frm all water-filled cmpnents. 70

Operatin 3.9 Emptying the dirt hpper When the flw rate in the suctin system decreases r dirty water is left n the grund, the fllwing steps are t be taken: 1. Clse the circulatin water supply and switch the suctin turbine ff. 2. Clse the slutin supply. 3. Lift the frnt attachment device. 4. Set the speed adjustment lever t transprt mde and drive t the dept. 5. Befre emptying the dirt hpper, pen the lck n the cver. When tilting the dirt hpper, ensure the vehicle is standing sufficiently stable. 6. Reverse t the dumping lcatin. 7. Turn the speed adjustment lever t the zer psitin and apply the parking brake. 8. Raise and empty the dirt hpper. Open the flr flap and remve the carse debris. 9. Lwer the dirt hpper again and lck the flr flap and the cver. 10.Return t wrk r clean the vehicle. 71

Operatin 3.10 Cleaning the vehicle The cleaning wrk described belw has t be carried ut at least daily r, in the case f majr cntaminatin, mre ften. D nt use a steam cleaner r high pressure washer. D nt direct the water jet directly against electrical r electrnic cmpnents. 1. Start up the vehicle and drive t a suitable lcatin fr cleaning. 2. Turn the speed adjustment lever t the wrking mde and switch the suctin turbine n. 3. Place a water hse in frnt f the vacuum nzzle until water is sucked int the dirt hpper. 4. Then cnnect the water hse t the water cnnectin n the dirt hpper and allw water t be sucked int the suctin turbine. 5. Switch ff the suctin turbine. 6. Open the lck n the dirt hpper and raise the dirt hpper until the stp is reached. Allw the water sucked in previusly t drain first! 7. Clean the inside f the dirt hpper, including the strainer, by means f a water jet. 8. Unlck and pen the flr flap. Use the water jet t clean belw the flr flap. 9. Open the circulatin water hse. Flush the circulatin water hse using the water hse. 10.Assemble the circulatin water hse, lck the flr flap and lwer the dirt hpper. 72

Operatin 3.11 Twing and transprtatin 3.11.1 Twing the vehicle When the drive mtr is at standstill the wheels are blcked. Shuld it becme necessary t tw the Hak-Citymaster 1250 r t mve it yu will have t pen the bypass valve (Fig. 27/2). The bypass valve is belw the rear frame in the articulated jint area n the right-hand side abve the steering cylinder and it is easily accessible. It can be pened by means f an pen-ended wrench (SW 9) by rtating it in the flw directin (ntch n the square end). The twing eyes (Fig. 28/1) are lcated at the frnt f the vehicle frame. When the engine is at standstill the steering nly ffers an emergency steering functin. The twing speed must nt exceed a maximum f 2 km/h, the twing time 30 minutes and the twing distance 1 km. 1 1 2 Fig.27 73

Operatin 3.11.2 Transprtatin When transprting the Hak-Citymaster 1250 n a truck, the parking brake has t be applied and the vehicle has t be secured with straps. The lashing pints are lcated at the frnt at the twing eyes (Fig. 27/1), the vehicle frame and at the rear at the lwer supprt pints fr the cnnectin f the rear unit (Fig. 28/4). In additin, the lcking strap (Fig. 28/3) has t be attached t the lcking blt (Fig. 28/2). During the transprt mde, the sweeping unit has t be secured. Psitin the lck (Fig. 28/1) fr the transprtatin int psitin 1. If the lcking strap is inserted (Fig. 28/3) the vehicle cannt be steered! 1 3 4 2 4 Psitin 1 Fig.28 74

Attachment devices 4 Attachment devices With the attachment devices apprved by Hak, if used as intended, the axle lad and ttal weight fr the vehicle are nt exceeded. 4.1 Structure f the sweeping system 4.1.1 Installing the sweeping unit Fr installing the sweeping unit the strage stand (Fig. 29/1) is required. 1. Push the sweeping unit with the strage stand t the vehicle. 2. Insert the supprting arms (Fig. 29/2) int the guides (Fig. 29/3) and secure them with lcking blts and lcking pins. 1 2 3 Fig.29 75

Attachment devices 3. Clse the cnnectins. A Sideways mvement f the frnt unit (frwards/reversing) B Sideways mvement f the frnt unit (frwards/reversing) C 7-ple encding cnnectr (series) 12-ple encding cnnectr (scrubber system ptin) D Prprtinal cntrl f supply line (max. 20 l/min) E Prprtinal cntrl f return line (max. 20 l/min) F Lifting the vacuum nzzle G Water cnnectin 4. Attach Bwden cable (Fig. 30/1) t the larger material flap (pay attentin t the path!). A B C D E F G 1 Fig.30 76

Attachment devices 5. Attach Bbwden cable (Fig. 31/1) fr the circulatin water system. 6. Attach the water hse (Fig. 31/2) fr the circulatin water system. 7. Insert the suctin hse frm abve and attach it t the vehicle's rear sectin (Fig. 31/4). 8. Attach the suctin hse at the bttm f the suctin nzzle (Fig. 31/3). 3 2 1 4 Fig.31 77

Attachment devices 9. Attach the slutin hse (Fig. 32/1). 10.Raise the sweeping unit by pressing the Raise buttn (n the right-hand perating panel) and attach the attachment chain (Fig. 32/2). Dismantling is dne in reverse rder. Pay attentin t the fllwing: 1 2 Befre dismantling the circular brushes have t be mved utwards. Detach the circular brushes frm the sweeping unit. Psitin the setting dwn frame at the centre f the frame (Fig. 32/3). When setting dwn the sweeping unit ensure that the seals (Fig. 32/4) n the vacuum nzzle are nt kinked. 3 4 Fig.32 78

Attachment devices 4.1.2 Installatin f the dirt hpper Fr the installatin f the dirt hpper the strage stand (Fig. 33/1) is needed. 1. Fully retract the lifting cylinder (Fig. 33/1) by pressing the key (Fig. 33/2) and carefully fld backwards. 2. Lsen the attachment screws (Fig. 33/3) fr supprt f the dirt hpper. 3. Push the dirt hpper with the strage stand (Fig. 33/4) ver the basic vehicle. 4. Fld up the lifting cylinder (Fig. 33/5) and insert it int the u-shaped recesses in the dirt hpper. 1 3 4 2 5 Fig.33 79

Attachment devices 5. Lwer the dirt hpper using the crank (Fig. 34/1) unifrmly and in parallel unil the hles (Fig. 34/3) fr the lifting cylinder (Fig. 34/2) are aligned. 6. Attach the lifting cylinder using lcking blts (Fig. 34/4) and secure with a linchpin (Fig. 34/5). 7. Cntinue lwering the dirt hpper unifrmly with the crank, until the hles (Fig. 34/6) fr the lcking blt are aligned. 8. Attach the rear supprts fr the dirt hpper using lcking blts and secure with the linchpin. 3 1 2 6 4 5 Fig.34 80

Attachment devices 9. Align the dirt hpper with the tw adjustment screws (Fig. 35/6). By screwing in the right-hand (r lefthand) adjustment screw the dirt hpper with its supprt blcks is pushed t the left (r the right). 10.Screw the rear supprt fr the dirt hpper t the vehicle's rear sectin using the attachment screws (Fig. 35/1). 11.Cnnect the Geka cupling (Fig. 35/ 2) fr the circulatin water system. 12.Cnnect the hydraulic cuplings (Fig. 35/3). 13.Raise the dirt hpper using the lever (Fig. 35/4). 14.In the upper dirt hpper psitin nce again re-tighten the tw attachment screws (Fig. 35/1)! 15.Check the psitin f the circulatin water hse (Fig. 35/5)! 3 2 5 1 6 4 Fig.35 81

Attachment devices 16.Munt the rear dr and clse the the lcks (Fig. 36/1). 17.Remve the strage stand (Fig. 33/4). Dismantling the dirt hpper is carried ut in the reverse rder. Ensure that the circulatin water hse (Fig. 36/2) and the hydraulic hses (Fig. 36/3) are laid carefully! 6 3 2 1 Fig.36 82

Attachment devices 4.2 Scrubber system cnstructin 4.2.1 Installatin f the scrubber unit 1. Assemble the supprting arms (Fig. 37/1) n the Hak Citymaster and secure using blts and linchpins. 2. Secure the hlder (Fig. 37/2) n the Hak Citymaster fr the squeegee. After the initial installatin the stand may remain attached t the device! 3. Guide the squeegee f the Citycleaner with the trlley (Fig. 37/3) int the hlder (Fig. 37/2) and latch it in. 4. Fix the suctin hse f the Citymaster t the suctin pipe (Fig. 37/4). 5. Push Citycleaner with trlley (Fig. 37/5) n the supprting arms and secure using blts and lcking pins (Fig. 37/6). 4 2 3 1 6 5 Fig.37 83

Attachment devices 6. Clse the cnnectins. A Encding cnnectr B Slutin cnnectin C Circulatin water cnnectin D Hydraulics fr squeegee E Hydraulics brush mtr F Electrical cnnectins fr water pump and valve 7. Assemble the brushes (Hak snapfit system). Dismantle the scrubber system in the reverse rder. D A B C E F Fig.38 84

Attachment devices 4.3 Structure f the lading platfrm and the frnt cupling triangle 4.3.1 Installatin f the lading platfrm Befre installatin it may be necessary t dismantle the ptinal high pressure washer! 1. Fld the lifting cylinder (Fig. 39/1) backwards and extend it by pressing the buttn (Fig. 39/2). 2. Carefully place the lifting cylinder (Fig. 39/2) nt the vehicle's rear sectin. 3. Push the lading platfrm with the strage stand (Fig. 39/3) ver the basic vehicle. 4. Using the cranks (Fig. 39/4) lwer the lading platfrm unifrmly and in parallel. 3 1 2 4 Fig.39 85

Attachment devices 5. Using the cranks cntinue lwering the lading platfrm until the hles (Fig. 40/1) fr the lcking blts are aligned. 6. Secure the lading platfrm with the lcking blts and spring lcks. Fr this the bush (Fig. 40/2) (see enclsed package) has t be installed in such a way that the lading platfrm is aligned unifrmly. 7. Manually fld pen the lading platfrm and fr safety insert the right lifting cylinder int the brace (Fig. 40/ 4). 8. Insert bth lcking blts (Fig. 40/3) between the lading platfrm and the lifting cylinder and secure it with a linchpin. 2 1 4 3 Dismantling the lading platfrm is dne in the reverse rder. Fig.40 86

Attachment devices 4.3.2 Installatin f the frnt cupling triangle Attach the upper link (Fig. 41/1) int the vehicle frame and secure it with lcking blt and linchpin. Insert the frame (Fig. 41/2) f the frnt cupling triangle in the adapters (Fig. 41/3) and secure them with lcking blts and linchpins. Insert the upper link in the frnt cupling triangle (Fig. 41/4) and secure it with a lcking blt and linchpin. It is dismantled in the reverse rder. 1 1 1 2 3 4 Fig.41 87

Attachment devices 4.4 Ballast Fr the installatin f ther devices nt apprved by Hak it has t be checked in detail, whether the axle lad and ttal weights are nt exceeded. The installatin f frnt-munted and rear attachment devices must nt lead t the permitted ttal weight, the axle lads r the tire lad capacity t be exceeded. The frnt and rear axles f the wrking machine must at all times be laded with a minimum f 20% f the dead weight. Befre purchasing an attachment, check that this cnditin is fulfilled by weighing the machine/attachment cmbinatin. Fig.42 88

Attachment devices 4.4.1 Calculatin f the ballast Fr determining the ttal weight, the axle lad and the tire lad capacity, as well f the minimum ballast yu will need the fllwing data: All weights infrmatin is given in (kg). All dimensins are given in (m) TL (kg) = dead weight f the vehicle(1) T V (kg) = frnt axle lad f the unladen vehicle (1) T H (kg) = rear axle lad f the unladen vehicle (1) GH (kg) = ttal weight fr rear attachment device/rear ballast max. 400 kg (2) GV (kg) = ttal weight fr frnt attachment device/frnt ballast max. 230 kg (2) a (m) = distance between the center f gravity f the frnt attachment device / frnt ballast and centre f frnt axles max = 1.6 m (2 and 3) b (m) = vehicle wheel base (1 and 3) c (m) = distance = 0.665 m (1 and 3) d (m) = distance between the center f the installatin pint between and the center f gravity f rear attachment device / rear ballast max. 0.18 m (2) 1 See vehicle perating manual 2 See price list and / r vehicle perating manual 3 Measure this value 89

Attachment devices 1. Calculatin f the minimum ballast at the frnt fr rear attachment devices. Enter the result in the table. 2. Calculatin f the minimum ballast at the rear fr frnt attachment devices. (Fr value x see manufacturer infrmatin, if n ther infrmatin is available, x = 0.45) Enter the result in the table. 3. Calculatin f the actual frnt axle lad T V act If with the frnt attachment device (GV) the necessary minimum ballast at the frnt (G V min ) is nt reached, the weight f the frnt attachment device has t be increased until the minimum ballast at the frnt is reached! Enter the calculated actual frnt-axle lad and the lad given in the perating manual fr the wrking machine in the table. 4. Calculatin f the actual ttal weight. (If with the rear attachment device (GV) the necessary minimum ballast at the rear (GV min) is nt reached, the weight f the rear-munted attachment device has t be increased until the minimum ballast at the rear is reached! Enter the calculated actual ttal weight and the ttal permitted weight given in the perating manual fr the wrking machine in the table. 5) Calculatin f the actual rear axle lad. Enter the calculated actual rear axle lad and the ttal permitted rear axle lad given in the perating manual fr the wrking machine in the table. 6) Tire lad capacity Enter the duble value (tw tires) f the permitted tire lad capacity (see e.g. dcumentatin f the tire manufacturer) in the table. 90

Attachment devices Ballast table The calculated values have t be smaller than r equal t the permitted values! Minimum ballast at frnt / rear Actual value accrding t calculatin Permitted value accrding t perating manual Ttal weight kg kg kg Frnt axle lad kg kg kg Rear axle lad kg kg kg The minimum ballast has t be attached t the vehicle either in the frm f an attachment device r a ballast weight! 91

Technical Data 5 Technical Data C E D A B 92 Fig.43

Technical Data Dimensins 1) depending n the lading f the basic machine max. permitted weight f tractr/trailer cmbin. Basic unit with lading platfrm Basic vehicle with sweeping system Basic vehicle with scrubber system Length (A) (depending n cnfiguratin) mm 3255-3355 3969 4000 Width (B) (depending n cnfiguratin) mm 1188-1318 1250-1318 1370 Height (C) (depending n cnfiguratin) mm 1995-2202 1995-2202 1995-2202 Wheel base (D) mm 1430 1430 1430 Gauge (E) (with tires 195R14C) mm 984 984 984 Turning circle (external) mm 2625 2850 2900 Weights Dead weight (depending n cnfiguratin) kg 1600-1700 1980-2080 1950-2050 Grss ttal weight kg 2600 2600 2600 Axle lads Permitted frnt axle lad kg 1500 1500 1500 Permitted rear axle lad kg 1600 1600 1600 Trailer weight 1) Permitted weight fr unbraked trailers kg 750 750 750 Permitted weight fr braked trailers kg 1750 1400 1400 Ttal weight f tractr/trailer cmbinatin and Climbing capacity Ttal weight fr unbraked tractr/trailer cmbinatin kg 3100 3100 3100 Ttal weight fr braked tractr/trailer cmbinatin kg 3500 3500 3500 Climbing capacity (Ttal weight) % 12 12 12 93

Technical Data Engine Manufacturer Yanmar C. Ltd. Type 4 TNV 88-BMHW Prcedure 4 strke Diesel engine Pwer (at 2600 1/min) kw/ece-r24 33 Trque, max Nm / 1/min 143 / 1560 Cylinder/strke mm 88/90 Cubic capacity cm 3 2190 Cmpressin rati 19, 1:1 Number f cylinders 4 cylinders rw Engine il frm Mbilil (r similar) Delvac MX 15W-40 Engine il vlume with/withut filter change liter 8.2/8.6 Engine il filter, screw-in cartridge rder n. 114-032 Idling speed rpm 1100 +/- 50 Preferred engine speed / max. engine speed rpm 2450 / 2750 +/- 25 Cling mde: thermstat-cntrlled liquid cling, Air filter: filter insert / safety cartridge rder n. 114-347 / 114-348 Clant (clant additive: Glaceelf Aut Supra) clant additive percentage: min 40%, max 60% liter apprx. 7.5 94

Technical Data Vertical lads n cuplings and slpes Permitted vertical lad n the cupling pint f the bar cupling kg max. 250 Permitted vertical lad n the cupling pint f the ball head cupling kg max. 150 Fuel system Fuel Diesel fuel Tank vlume liter apprx. 60 Filter, fuel rder n. 114-033 Driving speeds Transprt mde (autmtive) km/h 0-30 Wrk mde (all-wheel) km/h 0-16 Reversing km/h 0-12 Hydraulic system/tractin drive Hydraulic circuit 1 at 195 bar l/min 46 Hydraulic circuit 2 at 195 bar l/min 4-20 Driving peratin at 295 bar l/min 0-120 Hydraulic il (e.g.: Mbilil) DTE 15M Hydraulic il filter - Suctin return-line filter rder n. 109-279 - Ventilatin filter rder n. 108-260 Hydraulic il filling vlume Liter 45 95

Technical Data Brake system SAE J 1703 Tank vlume liter 0,5 Tire pressure Standard tires: 195R14C - Rim: 6J14H2 - M = 160Nm bar 3.5 Standard tires: 215/65R14C - Rim: 6J15H2 - M = 120Nm bar 2.9 Wide base tire: 26x12.00-12 TL8PR - Rim: 10.50I-12 - M = 160Nm bar 1.5 Sweeping system Speed f suctin turbine rpm 2200-2600 Suctin pipe diameter mm 180 Brushes (number / diameter) piece / mm 2 / 900 Brush speed rpm 0-200 Scrubber system Speed f suctin turbine rpm 2200-2600 Suctin pipe diameter mm 180 Brushes (number / diameter) piece / mm 2 / 900 Brush speed rpm 0-200 Dirt hpper Capacity m 3 1.0 Slutin tank liter 170 Circulatin water system liter 175 96

Technical Data Electrical system Type f current DC Rating V 12 Starter battery V / Ah 12/74 Alternatr V/A 14.4/80 Nise emissin at the preferred engine speed Basic vehicle with lading platfrm The driving nise in accrdance with 2009/63/EC Annex VI: db (A) 79 The standing nise in accrdance with 2009/63/EC Annex VI: db (A) 82 The nise at the driver s ear in accrdance with 2009/76/EC: db (A) 81 The nise emissin value at the preferred engine speed Basic vehicle with sweeping system / scrubber system The sund pwer level measured in accrdance with DIN EN ISO 3744 under the maximum deplyment cnditins (at the wrkplace) (LwAd) is: With nise insulatin package (ptinal) db (A) db (A) The sund pwer level measured in accrdance with DIN EN ISO 11201 under the usual deplyment cnditins (at the wrkplace) (LpA) is: db (A) 79 The measurement uncertainty (KpA) is: db (A) 3.5 Vibratin values The weighted, effective value f the vibratin, established in accrdance with ISO 1032, t which the bdy (feet and seat area) are expsed under nrmal wrking cnditins is n mre than 108 99 m/s 2 0.5 97

Maintenance and Servicing 6 Maintenance and Servicing General infrmatin It is essential t pay attentin t the infrmatin in the Chapter "Safety Infrmatin" befre cmpleting any servicing r maintenance wrk! By adhering t the maintenance wrk recmmended by us, yu can be sure that the vehicle is always ready t be put int peratin. Maintenance and repair wrk necessary n a daily and weekly basis can be carried ut by a driver trained t cmplete the wrk; all ther Hak system maintenance may nly be cmpleted by persnnel wh are apprpriately qualified and trained. In case f dubt, please cntact yur nearest Hak service center r authrized Hak dealer. Failure t bserve this annuls any rights t claims under the terms f guarantee in respect f resulting damage r cnsequential damage. If yu have any queries, r fr rdering replacement parts, always qute the serial number, see the chapter abut signs n the machine. 98

Maintenance and Servicing 6.1 Hak system maintenance schedule Hak system maintenance schedule: ensures the Hak machines are always ready fr peratin (preventive maintenance), minimizes perating csts, maintenance and repair csts, ensures the vehicle has a lng service life. The Hak system maintenance schedule describes the specific technical wrk necessary fr the individual mdules and defines the intervals fr the maintenance wrk. Individual parts which must be replayced during maintenance wrk are defined and stipulated in the spare parts kits. Hak system maintenance schedule, custmer: Wrk t be carried ut by the custmer accrding t the servicing and maintenance instructins in the perating manual (daily and weekly). The driver/ peratr receives detailed instructins when the vehicle is delivered. Hak system maintenance schedule, ne-ff (after 50 hurs f peratin) Applies t all machines with internal cmbustin engine drives, 1 st il change, filter change etc. t be carried ut by a specialist at an authrized Hak service statin. Hak system maintenance schedule I: (Every 125 perating hurs) Must be cmpleted by a skilled technician in an authrized Hak service center accrding t the vehicle-specific system maintenance schedule using a spare parts kit. Hak system maintenance schedule II: (Every 250 perating hurs) Must be cmpleted by a skilled technician in an authrized Hak service center accrding t the vehicle-specific system maintenance schedule using a spare parts kit. Hak system maintenance schedule III: (Every 500 perating hurs) Must be cmpleted by a skilled technician in an authrized Hak service center accrding t the vehicle-specific system maintenance schedule using a spare parts kit. Hak system maintenance schedule IV/S: (Every 1000 perating hurs, safety check) Must be cmpleted by a skilled technician in an authrized Hak service center accrding t the vehicle-specific system maintenance schedule using a spare parts kit. All the legally prescribed safety-relevant tests must be cmpleted in accrdance with UVV-BGV-TÜV-VDE. 99

Maintenance and Servicing 6.2 Maintenance reprt Handver Upgrading Test drive Handver t custmer Instructin cmpleted n: at perating hurs Hak System Maintenance I 50 perating hurs, ne-ff Wrkshp Stamp cmpleted n: at perating hurs Hak System Maintenance I 250 perating hurs Wrkshp Stamp cmpleted n: at perating hurs Hak System Maintenance II 500 perating hurs Wrkshp Stamp cmpleted n: at perating hurs Hak System Maintenance I 750 perating hurs Wrkshp Stamp Hak System Maintenance III/ S 1000 perating hurs Wrkshp Stamp Hak System Maintenance I 1250 perating hurs Wrkshp Stamp Hak System Maintenance II 1500 perating hurs Wrkshp Stamp cmpleted n: at perating hurs cmpleted n: at perating hurs cmpleted n: at perating hurs cmpleted n: at perating hurs Hak System Maintenance I 1750 perating hurs Wrkshp Stamp Hak System Maintenance III/ S 2000 perating hurs Wrkshp Stamp Hak System Maintenance I 2250 perating hurs Wrkshp Stamp Hak System Maintenance II 2500 perating hurs Wrkshp Stamp cmpleted n: at perating hurs cmpleted n: at perating hurs cmpleted n: at perating hurs cmpleted n: at perating hurs 100

Maintenance and Servicing Activity 6.3 Maintenance plan Hak system maintenance schedule, custmer The fllwing maintenance wrk must be cmpleted by the custmer at the intervals stipulated. Interval Cleaning f the machine as required Check the engine il level, if necessary tp up Check the clant level in the cmpensatin tank, if necessary tp up Check the the fuel level, if necessary tp it up Check the slutin nzzle n the vacuum nzzle, if necessary clean it Check the maintenance indicatr fr the air filter, if necessary clean it Check the cmbined cler fr the engine, if necessary clean it Check the the level fr the windscreen washer fluid, if necessary tp up Empty the water separatr Check the cabin air filter, if necessary clean it Grease the lubricatin pints as described in the lubricatin schedule Check the hydraulic il level; refill as necessary Check the lighting system Check the air pressure in the tires Daily Weekly 101

Maintenance and Servicing Hak system maintenance schedule, custmer The fllwing maintenance wrk must be cmpleted by the custmer at the intervals stipulated. Activity Daily Interval Weekly Check sweeping unit / scrubber unit fr wear and damage Check sweeping pattern, adjust if necessary Check the spray nzzles, spray nzzle filters and strainers in the water system, if necessary clean them Checkvacuum nzzle fr wear and damage Check the vacuum nzzle adjustment, if necessary adjust it Check the suctin hse fr wear and prper installatin Check the seal between the suctin hse and the dirt hpper Check the slutin nzzle and the circulatin water system n the vacuum nzzle Check the vacuum nzzle flap Test drive with braking test 102

Maintenance and Servicing Hak system maintenance schedule - ne-ff The fllwing maintenance wrk must be cmpleted by an authrized Hak service center. Activity Engine Change the engine il Change engine il filter Change the fuel filter Empty the water separatr Check the idling, preferred and perating engine speeds Check the v-belts fr the generatr and the air cnditining system Check the cler and the clant hses Check the cmbined cler and radiatr grille Brakes Check the service brake and parking brake, if necessary readjust them Check the the Bwden cables n the parking brake fr signs f rubbing Check the brake fluid fr the service brake, if necessary tp up Wheels Check the blts fr prper tightness (als after every wheel change) Check the tire air pressure Interval After 50 perating hurs (ne-ff) 103

Maintenance and Servicing Activity Hydraulics Exchange the return line filter Check the il level Check functining and check fr leaks Raise the dirt hpper using the manual pump Steering Check the functining and easy running Check the ball heads and steering cylinders Bwden cables Check the functining, easy peratin and zer pint Sweeping unit / scrubber unit Check fr wear and damage Check sweeping pattern, adjust if necessary Check the spray nzzles, spray nzzle filters and strainers in the water system, if necessary clean them Vacuum nzzle Check fr wear and damage Check the vacuum nzzle adjustment, if necessary adjust it Check the suctin hse fr wear and prper installatin Check the seal between the suctin hse and the dirt hpper Check the slutin nzzle and the circulatin water system n the vacuum nzzle Check the vacuum nzzle flap Interval After 50 perating hurs (ne-ff) 104

Maintenance and Servicing Activity Dirt hpper Check fr signs f siling Check the flap in the sump Check the speed f the suctin turbine and check fr cntaminatin Check the hydraulic lines fr the suctin turbine drive fr leaks Check the baffle plate fr wear Check the seals n the cntainer cver fr leaks and damage Check the waste air side f the cntainer cver fr cntaminatin Electrics Check the hrn, lighting and wrk functins Check the cabling fr signs f rubbing and wear Check the state f charge f the battery Clean and grease the battery ples Cab Clean the cabin air filter Check the functining f the heating Check the functining f the air cnditining system Check the windscreen washer fluid Interval After 50 perating hurs (ne-ff) 105

Maintenance and Servicing Activity Lubricatin service (weekly) Frnt unit - lifting cylinders abve and belw and n left-hand and right-hand sides (4x) fr remving frnt attachment Frnt unit - mechanism n left-hand and right-hand sides (4x) mechanism fr remving frnt attachment Sweeping system - circular brushes tilting jints left-hand/right-hand sides (4x) Sweeping system - mechanism fr remving vacuum nzzle (3x) Sweeping system - circular brushes levers fr sideways mvement (2x) Circulatin water lever (1x) Acceleratr pedal (1x) Brake pedal (1x) Larger material flap (1x) Greasing supprt (2x) (nt fr the Easy Grease ptin) Wing mirrrs n left-hand/right-hand sides (2x) Lifting cylinders fr dirt hpper n left-hand/right-hand sides (4x) Articulated jint (2x) Ball-and-scket jint fr rear supprt (2x) Easy Grease (ptinal) Miscellaneus Check the appearance f the vehicle Test drive If necessary clean the vehicle Interval After 50 perating hurs (ne-ff) 106

Maintenance and Servicing Hak system maintenance schedule I The fllwing maintenance wrk must be cmpleted by an authrized Hak service center. Activity Engine Change the engine il Change the engine il filter Check the fuel filter Empty the water separatr Check the filter insert fr the air filter Check the v-belts fr the generatr and the air cnditining system Check the cler and the clant hses Check the cmbined cler and radiatr grille Brakes Check the service brake and parking brake, if necessary readjust them Check the Bwden cables n the parking brake fr signs f rubbing Check the brake fluid fr the service brake, if necessary tp up Wheels Check the wheel blts fr prper tightness (als after any wheel change) Check the tire air pressure Interval Every 250 perating hurs 107

Maintenance and Servicing Activity Hydraulics Check the il level Check functining and check fr leaks Raise the dirt hpper using the manual pump Steering Check the functining and easy running Check the ball heads and steering cylinders Bwden cables Check the functining, easy peratin and zer pint Sweeping unit / scrubber unit Check fr wear and damage Check sweeping pattern, adjust if necessary Check the spray nzzles, spray nzzle filters and strainers in the water system, if necessary clean them Vacuum nzzle Check fr wear and damage Check the vacuum nzzle adjustment, if necessary adjust it Check the suctin hse fr wear and prper installatin Check the seal between the suctin hse and the dirt hpper Check the slutin nzzle and the circulatin water system at the vacuum nzzle Check the vacuum nzzle flap Interval Every 250 perating hurs 108

Maintenance and Servicing Activity Dirt hpper Check fr signs f siling Check the flap in the sump Check the speed f the suctin turbine and check fr cntaminatin Check the bearing fr the suctin turbine (anti-vibratin buffer) Check the anti-vibratin buffer fr the intake sieve in the dirt hpper Check the hydraulic lines fr the suctin turbine drive fr leaks Check the baffle plate fr wear Check the seals n the cntainer cver fr leaks and damage Check the jints and bearings fr the cntainer cver Check the waste air side f the cntainer cver fr cntaminatin Electrics Check the hrn, lighting and wrk functins Check the cabling fr signs f rubbing and wear Check the state f charge f the battery Clean and grease the battery ples Cab Clean the cabin air filter Check the functining f the heating Check the functining f the air cnditining system Check the windscreen washer fluid Interval Every 250 perating hurs 109

Maintenance and Servicing Activity Lubricatin service Frnt unit - lifting cylinders abve and belw and n left-hand and right-hand sides (4x) fr remving frnt attachment Frnt unit - mechanism fr remving frnt attachment n left-hand and right-hand sides (4x) Sweeping system - circular brushes tilting jints left-hand/right-hand sides (4x) Sweeping system - vacuum nzzle lifting mechanism (3x) Sweeping system - circular brushes, lever fr sideways mvement (2x) Circulatin water lever (1x) Acceleratr pedal (1x) Brake pedal (1x) Larger material flap (1x) Greasing supprt (2x) (nt fr the Easy Grease ptin) Wing mirrrs n left-hand/right-hand sides (2x) Cylinders fr remval f dirt hpper n left-hand/right-hand sides (4x) Articulated jint (2x) Ball-and-scket jint fr rear supprt (2x) Easy Grease (ptinal) Miscellaneus Check the appearance f the vehicle Test drive If necessary clean the vehicle Interval Every 250 perating hurs 110

Maintenance and Servicing Hak system maintenance schedule II The fllwing maintenance wrk must be cmpleted by an authrized Hak service center. Activity All maintenance wrk as described in Hak system maintenance schedule I The fllwing activities in additin: Engine Change the fuel filter Exchange the air filter insert Check the exhaust fr damage Hydraulics Exchange the return line filter Interval Every 500 perating hurs 111

Maintenance and Servicing Hak system maintenance schedule III/S The fllwing maintenance wrk must be cmpleted by an authrized Hak service center. Activity All maintenance wrk as described in Hak system maintenance schedule I and II The fllwing activities in additin: Engine Exchange air filter safety cartridges Check the idling, preferred and perating engine speeds Check the valve play when the engine is cld, if necessary adjust it Exchange the membrane in the valve cver fr the engine ventilatin Exchange the clant - at the latest after 2 years (pay attentin t antifreeze during winter peratin!) Brakes Check the brake pads, if necessary exchange them Exchange the brake fluid fr the service brake - at the latest after tw years Hydraulics Change the hydraulic il Bwden cables Exchange the Bwden cable fr the engine Exchange the Bwden cables fr the travel pump Interval Every 1000 perating hurs 112

Maintenance and Servicing Activity Acceleratr Check the functining and easy mvement, if necessary replace defective parts Exchange the stp disc and trsin spring n the acceleratr pedal Exchange the acceleratr pedal (after 2000 hurs f peratin) Articulated jint Check the rubber buffer is free f play Dirt hpper Exchange the bearing fr the suctin turbine (anti-vibratin buffer) Cab Exchange the cabin air filter Miscellaneus Check the ntices n the machine, if necessary replace them Test all f the cmpnents relevant fr functining and safety Check the attachment devices Test drive Lg accrding t UVV-BGV-TÜV-VDE, certificatin plate and inspectin lgbk Interval Every 1000 perating hurs 113

Maintenance and Servicing 6.4 Engine 1 Oil filler cap 2 Dipstick 3 Engine il filter 4 Drain plug fr engine il 5 Membrane n the valve cver The safety infrmatin belw has t be bserved: 1 5 max min Cautin with ht engine il when the engine was running earlier. Catch drained engine il and dispse f with cnsideratin fr the envirnment. Pay attentin t cleanliness when filling with il. Use nly the perating fluids given in the table, refer t Sectin 6.4. 3 2 4 Fig.44 114

Maintenance and Servicing 6.4.1 Checking the engine il level Check the engine il level every day and tp up if required. If the cntrl lamp fr the engine il pressure cmes n: determine the cause and tp up engine il if necessary. 1. Ensure that the vehicle is standing hrizntally and apply the parking brake. 2. Switch the engine ff when the nrmal perating temperature has been reached. The engine il in the circulatin system will need a few minutes t flw back int the il sump. 3. Check the engine il level with the il dipstick (Fig. 44/2). 4. The engine il level shuld be between the max./min. marks n the il dipstick and must never drp belw the min. mark. 5. If required, tp up the engine il and check the engine il level nce again. Infrmatin n engine il, refer t Sectin 6.4 The engine il level must nt be abve the max. mark. 6. Re-insert the il dipstick. 115

Maintenance and Servicing 6.4.2 Changing the engine il and the engine il filter Change the engine il fr the first time after 50 hurs f peratin, and subsequently every 250 hurs f peratin. Drain the engine il when the engine is at perating temperature. 1. Ensure that the vehicle is standing hrizntally, then apply the parking brake and switch ff the engine. The engine il in the circulatin system will need a few minutes t return t the il sump. 2. Place a suitable cntainer belw the drainage plug (Fig. 44/4). 3. Remve the il filler cap (Fig. 44/1) fr venting the system. 4. Unscrew the drainage plug and cmpletely drain the engine il. 5. Changing the engine il filter (Fig. 44/3). Ensure that the sealing surfaces are kept clean and insert a new sealing ring. 6. Re-insert the drainage plug with a new sealing ring. 7. Fill with engine il. Engine il: Mbilil DELVCAC MX 15W-40 r similar. Filling quantity with engine il filter: 8.6 liter Filling quantity withut engine il filter: 8.2 liter. Cllect the drained engine il and dispse f with cnsideratin fr the envirnment. 8. Start up the engine and allw t run fr a shrt time at a lw speed. The cntrl lamp fr the engine il pressure has t g ut after a shrt time. 9. Turn the engine ff, check fr leaks and check the engine il level nce again. 10.Return the il filler cap and the il filler cap t their lcatins. 116

Maintenance and Servicing 6.5 Fuel system 1 Water separatr 2 Drain plug 3 Filter, fuel 4 Tank cap 4 3 1 2 Fig.45 117

Maintenance and Servicing 6.5.1 Fuelling the vehicle The fuel tank is lcated n the left-hand side f the vehicle n the rear sectin. Open the tank cap (Fig. 45/4) and fill with diesel crrespnding t DIN 51601. Tank cntents: apprx. 60 liter. The fllwing safety infrmatin has t be bserved: Befre fueling, switch the engine ff and remve the key frm the ignitin switch. D nt fill with fuel in enclsed spaces. Smking and handling fire is frbidden while filling fuel cntainers and wrking with r clse t cntaining fuel cmpnents. D nt allw any fuel t flw next t the fuel tank pening. Cllect any spilled fuel and dispse f it with cnsideratin fr the envirnment. 6.5.2 Checking the water seperatr Check the water separatr every week and, if necessary drain the cndensatin frm the water separatr (Fig. 45/ 1). 1. Ensure that the vehicle is standing hrizntally, then apply the parking brake and switch ff the engine. 2. Place a suitable cntainer belw the water separatr. 3. Open the drainage screw (Fig. 45/2), and cllect the cndensatin water. 4. Clse the drainage screw again. 6.5.3 Changing the fuel filter The fuel filter (Fig. 45/3) has t be changed after every 500 hurs f peratin. 1. Ensure that the vehicle is standing hrizntally, then apply the parking brake and switch ff the engine. 2. Unscrew the fuel filter (Fig. 45/3) and hld tgether with the fuel in a suitable cntainer. 3. Install a new fuel filter. 4. Replace the drainage screw. 118

Maintenance and Servicing 6.6 Air filter 1 Air filter 2 Maintenance indicatr 3 Screen 4 Clamps 5 Dust remval valve 6 Filter insert 7 Safety cartridges 1 6 2 3 4 7 5 Fig.46 119

Maintenance and Servicing 6.6.1 Maintenance indicatr The cntaminatin f the air filter has t be checked every day. The maintenance indicatr (Fig. 46/2) indicates the degree f cntaminatin. 6.6.2 Cleaning the filter insert The filter insert (Fig. 46/6) has t be checked accrding t the maintenance indicatr (Fig. 46/2) and be cleaned when necessary. At the latest after every 500 hurs f peratin, the filter insert has t be exchanged. We cannt accept liability fr cleaned filter inserts. Never allw the engine t run withut a filter insert! 1. Ensure that the vehicle is standing hrizntally, then apply the parking brake and switch ff the engine. 2. Remve the filter insert and carefully clean by blwing frm the inside with dry cmpressed air (max. 3 bar) and mving the the cmpressed air nzzle up and dwn. 3. Immediately replace a cntaminated r damaged filter insert. 4. Clean the inside f the filter husing. 5. Re-install the filter insert. 6.6.3 Changing the safety cartridge D nt clean the safety cartridge! Never allw the engine t run withut a filter insert! In the centre f the filter insert is a safety cartridge (Fig. 46/7). It is the purpse f this safety cartridge t prevent dirt frm getting int the air inlet during the filter cleaning r filter exchange. The safety cartridge has t be exchanged at the latest after every 1000 hurs f peratin whenever the filter is exchanged. 6.6.4 Pre-separatr and dust discharge valve The air filter cntains a pre-separatr (Fig. 46/5) which is integrated int the filter husing. This cnsiderably lengthens the service life f the filter insert. The dust particle separated ff in the filter husing are discharged thrugh the dust discharge valve (Fig. 46/5). 120

Maintenance and Servicing 6.7 Cling system 1 Rear dr 2 Screens 3 Cver plate 4 Cmbinatin cler 5 Drainage valve 6 Cap 7 Level mark 8 Cmpensatin cntainer 3 2 1 4 5 2 6 7 8 Fig.47 121

Maintenance and Servicing 6.7.1 Cleaning the cling system The cmbinatin cler cls bth the cling water fr the diesel engine and the hydraulic il fr the perating hydraulics. The cling air is sucked in by a fan thrugh the screens (Fig. 47/2) in the vehicle's rear sectin n the lefthand and the right-hand sides and in the rear dr (Fig. 47/1) and is supplied t the cmbinatin cler. Check the screens and the cmbinatin cler (Fig. 47/4) every day and clean if necessary. D nt use a steam cleaner r a high pressure washer. D nt direct the water jet directly at electrical and electrnic cmpnents. The cling ribs are very thin and they can easily becme damaged. 1. Ensure that the vehicle is standing hrizntally, then apply the parking brake and switch ff the engine. 2. Open the rear dr (Fig. 47/1). 3. Check the screens (Fig. 47/2) and the cmbinatin cler (Fig. 47/4) fr cntaminatin and if necessary clean with cmpressed air r a water jet. 6.7.2 Cver plate fr winter peratin If the vehicle has been fitted with a salt and sand spreader fr winter peratin, the cver plate has t be installed fr the prtectin f the cmbinatin cler (Fig. 47/3). 122

Maintenance and Servicing 6.7.3 Tpping up the clant Check the clant level in the cmpensatin cntainer (Fig. 47/8) every day and tp up if necessary. Cllect any spilled clant and dispse f with cnsideratin fr the envirnment. least 40 % and at mst 60 %. Never drive withut any clant! 7. Check the filling level and if necessary tp up nce again. 8. Clse the cver (Fig. 47/6) again. Risk f scalding! D nt pen the cver when the engine is ht. The cling system is pressurized! 1. Ensure that the vehicle is standing hrizntally and apply the parking brake. 2. Raise the dirt hpper until the stp is reached. 3. Turn ff the engine and remve the ignitin key. Allw the engine t cl dwn. 4. Check the clant level. When the engine is cld, the clant level has t be between the level marks (Fig. 47/7). 5. Unscrew the cver (Fig. 47/6) frm the cmpensatin cntainer. 6. Refill clant. Clant: Glaceelf Aut Supra The clant cntent has t be at 123

Maintenance and Servicing 6.7.4 Changing the clant The clant has t be changed after every 1000 hurs f peratin. Danger f scalding! D nt pen the drainage valve when the engine is ht. The cling system is pressurized! 1. Ensure that the vehicle is standing hrizntally and apply the parking brake. 2. Raise the dirt hpper until the stp is reached. 3. Turn ff the engine and remve the ignitin key. Allw the engine t cl dwn. 4. Place a cntainer (capacity min. 10 liter) under the drainage valve (Fig. 47/5). 5. Open the rear dr (Fig. 47/1) and remve the cver plate (Fig. 47/3). 6. Open the drainage valve (Fig. 47/5) and drain the clant. 7. Clse the drainage valve and unscrew the cver cap (Fig. 47/6). 8. Tpping up the clant. Clant: Glaceelf Aut Supra The clant cntent has t be at least 40% and at mst 60%. Never drive withut any clant! 9. Clse the cver cap. Allw the engine t run briefly in rder t warm up and then turn if ff again. 10.Check the clant level, if necessary tp up again. The filling vlume fr the cling system including heating is apprx. 7.5 liter. 124

Maintenance and Servicing 6.8 Hydraulic system 1 Fill level indicatr 2 Suctin return-line filter 3 Cap 4 Hydraulic il tank 5 Pipe 3 2 1 4 5 Fig.48 125

Maintenance and Servicing 6.8.1 Tpping up the hydraulic il Check the hydraulic il level n the fill level indicatr (Fig. 48/1) every week and tp up if necessary. Only use hydraulic il apprved by the manufacturer (HVLP 46) e.g. Mbilil DTE 15 M. Cllect drained r spilled hydraulic il in a suitable cntainer and dispse f with cnsideratin fr the envirnment. 1. Ensure that the vehicle is standing hrizntally and apply the parking brake. 2. Raise the dirt hpper until the stp is reached. 3. Turn ff the engine and remve the ignitin key. Allw the engine t cl dwn. 4. Unscrew the cver cap (Fig. 48/3) and tp up the hydraulic il. 5. The hydraulic il level shuld be between the min. and the max. marks. Quantity: apprx. 5 liter 6. Re-fit the cver cap. 6.8.2 Exchanging the suctin return-line filter The suctin return-line filter has t be exchanged after the first 50 hurs f peratin and then after every 500 hurs f peratin. 1. Ensure that the vehicle is standing hrizntally and apply the parking brake. 2. Raise the dirt hpper until the stp is reached. 3. Turn ff the engine and remve the ignitin key. Allw the engine t cl dwn. 4. Remve the cap frm the suctin return-line filter (Fig. 48/2) and change the suctin return-line filter. 126

Maintenance and Servicing 6.8.3 Exchanging the hydraulic il and ventilatin filter The hydraulic il is t be tilatin filter exchanged after every 1000 hurs f peratin. Only use hydraulic il apprved by the manufacturer (HV- LP 46) e.g. Mbilil DTE 15 M. Vlume t be filled in the hydraulic system apprx. 45 Liter. Cllect drained r spilled hydraulic il in a suitable cntainer and dispse f with cnsideratin fr the envirnment. 1. Ensure that the vehicle is standing hrizntally and apply the parking brake. 2. Raise the dirt hpper until the stp is reached. 3. Turn ff the engine and remve the ignitin key. Allw the engine t cl dwn. 4. Place a cntainer (capacity min. 50 liter) belw the hydraulic il tank. 5. Unscrew the cver cap (Fig. 48/3). 6. Lsen the pipe (Fig. 48/5) belw the hydraulic il tank (Fig. 48/4) and drain the hydraulic il. 7. Re-fit the pipe (Fig. 48/5) and pur in hydraulic il. 8. The hydraulic il level shuld be between the min. and the max. marks. 9. Check the level and, if required, tp up the hydraulic il. 10.Re-fit the cver cap. 127

Maintenance and Servicing 6.9 Slutinsystem 1 Spray nzzle filter 2 Spray jets 3 Slutin tank 4 Cap 5 Drain plug 6 Fill level indicatr 7 Sieving filter 1 2 3 4 5 6 7 Fig.49 128

Maintenance and Servicing 6.9.1 Tpping up the slutin tank Remve the cver cap (Fig. 49/4) and tp up the slutin tank (Fig. 49/3) until the fill level indicatr (Fig. 49/6) indicates that the maximum has been reached. The capacity is apprx. 180 liter. Frm the public water cnnectin, water frm the water main may nly be taken via the D hse cnnectin! At temperatures belw 0 degrees (danger f freezing), the water has t be drained frm all water-cntaining cmpnents! 6.9.3 Draining the slutin Drain the slutin tank (Fig. 49/3) via the drainage plugs (Fig. 49/5). Fr draining the hse lines, briefly switch n the water pump. 6.9.4 Cleaning the spray nzzles Check the spray nzzles (Fig. 49/2) and the spray nzzle filters (Fig. 49/1) weekly fr cntaminatin and clean if necessary. Check the slutin nzzle n the vacuum nzzle (Fig. 50/9) daily, if necessary clean it. 6.9.2 Clean the strainer Check the strainer (Fig. 49/7) weekly fr cntaminatin and clean if required. 129

Maintenance and Servicing 6.10 Sweeping system 1 Adjustment screws fr the sweeping pattern 2 Adjustment screws fr the surface pressure f the circular brushes 3 Lcking device fr the surface pressure fr the circular brushes and transprt psitin 4 Circular brushes 5 Sealing strip n the vacuum nzzle 6 Rllers 7 Threaded rds 8 Larger material flap 9 Spray jet n the vacuum nzzle Psitin 3-2 - 1 2 3 4 1 9 7 5 8 6 A B Fig.50 130

Maintenance and Servicing 6.10.1 Setting the sweeping pattern The cntact surface f the circular brushes (Fig. 50/4) n the flr (sweeping pattern) as well as the lifting arms have been adjusted by the manufacturer using the adjustment screws (Fig. 50/1). Check the sweeping pattern after every 250 hurs f peratin and adjust if necessary. The sweeping pattern must shw the fllwing cntact with the grund when the sweeping unit is lwered: Circular brushes n right-hand side: frm 10 clck t 4 clck Circular brushes n left-hand side: frm 8 clck t 2 clck 6.10.2 Adjusting surface pressure fr the circular brushes The surface pressure frm the circular brushes is adjusted using the adjustment screws (Fig. 50/2). With increasing wear, the sweeping pattern has t be re-adjusted. 6.10.3 Adjustment f the vacuum nzzle The gap between the sealing strip and the flr in the frnt area (A) has t be apprx. 3+2 mm. In the rear area (B) the gap must be 8+2 mm. The adjustment is made by means f threaded rds (Fig. 50/7). When the sealing strip wears, set the rllers (Fig. 50/6) in a hle higher up. Defective seals, including thse n the larger material flap (Fig. 50/8), are t be replaced immediately because they reduce the suctin. 6.10.4 Adjusting the lcking device During travel peratin the sweeping unit has t be secured with the transprtatin lcking device (Fig. 50/3)! Psitins fr the lcking device: Transprtatin = psitin 1 Circular brushes new = psitin 2 Circular brushes 50% wrn = psitin 3. 131

Maintenance and Servicing 6.11 Scrubber system 6.11.1 Changing the brushes The brushes n the scrubber unit can be changed rapidly and withut the need fr a tl thanks t the Hak click system. The brushes are lcked int place by means f tw levers (Fig. 51/ 1). 1 Fig.51 132

Maintenance and Servicing 6.11.2 Adjusting the sealing strips At the vacuum nzzle there are three sealing strips. The tw sealing strips (Fig. 52/1) n the side can be exchanged and the rear sealing strip (Fig. 52/2) n the vacuum nzzle is nt subject t wear prvided it is prperly adjusted. Check the crrect adjustment after every 250 hurs f peratin and readjust if necessary. The cmplete vacuum nzzle is adjusted with respect t the grund using the threaded rds (Fig. 52/3). In the frnt area (A), the gap between the sealing strip and the grund has t be apprx. 5 mm. In the rear area (B) the gap has t be 0 mm. 6.11.3 Changing the sealing strips The sealing strips (Fig. 52/1) n the sides are designed in such a way that they can be turned arund nce when they are wrn. When bth sides are wrn, the sealing strips have t be replaced. Lsen the thumb screws and the clamping strips. 3 1 A B 2 Fig.52 133

Maintenance and Servicing 6.11.4 Cleaning the filters The tw filter inserts (Fig. 53/1) fr the recycling system (ptinal) have t be cleaned after each deplyment. Simple flushing: lsen the cver cap (Fig. 53/2) and allw the dirty water t flw fr apprx. 5 secnds. Thrugh cleaning: unscrew the filter, remve the filter insert and clean thrughly. 1 2 Fig.53 134

Maintenance and Servicing 6.11.5 Adjusting the dsing Separate the cuplings (Fig. 54/2) and (Fig. 54/3). Cnnect the cupling (Fig. 54/2) t cnnectin (A) fr the chemicals dsing unit (ptinal). Cnnect the cupling (Fig. 54/3) t the cnnectin (B) fr the chemicals dsing unit. In the intake hse fr the chemicals cntainer there is a nzzle (Fig. 54/1). The mixing rati fr the cleaning liquid is adjusted by selecting the nzzle. The varius nzzles are fund enclsed in a separate package. B A 2 3 1 Fig.54 135

Maintenance and Servicing 6.12 Dirt hpper 1 Operating lever fr manual pump 2 Manual pump valve 3 Water cnnectin 4 Strainers 5 Flr flap 6 Rear dr seal 7 Safety supprt 1 3 2 2 6 7 4 5 Fig.55 136

Maintenance and Servicing 6.12.1 Safety supprt During maintenance wrk, the dirt hpper always has t be raised t its high psitin and the safety supprt (Fig. 55/7) has t be inserted. 6.12.2 Checking the rear dr seal Check the rear dr seal (Fig. 55/6) n the dirt hpper after every 250 hurs f peratin and replace if necessary. 6.12.3 Cleaning the strainer Every time the hpper is emptied clean the strainers (Fig. 55/4), the flr flap (Fig. 55/5) and the sump belw. 6.12.4 Cleaning the suctin turbine Check the suctin turbine in the dirt hpper after every 250 hurs f peratin fr cntaminatin and, if necessary, clean it. Fr cleaning the suctin turbine there is a water cnnectin (Fig. 55/3) nthe frnt f the dirt hpper. 6.12.5 Tpping up the circulatin water In rder t allw peratin fr as lng as pssible, apprx. 200 liters f water shuld be filled int the dirt hpper. At temperatures belw 0 degrees (danger f freezing), the water has t be drained frm all f the water-cntaining cmpnents. 6.12.6 Raise the dirt hpper using the manual pump Check the hydraulic cylinder every 250 hurs by means f a manual pump. If the Raise dirt hpper key des nt functin, the dirt hpper can be lifted by means f the auxiliary tl frm the cabin and the manual pump as fllws: 1. Fit the auxiliary tl nt the perating lever (Fig. 55/1) n the manual pump and pen valve (Fig. 55/2). 2. Using the auxiliary tl, pump the manual pump until the dirt hpper has reached its limiting psitin. 137

Maintenance and Servicing 6.13 Air-cnditining unit 1 Air-cnditining unit 2 Fan belts 3 Cndenser fan 4 Cver 5 Prtective screen 6 Cabin air filter 7 Punched plate 3 4 S W 5 6 7 Fig.56 138

Maintenance and Servicing 6.13.1 Exchanging the cabin air filter Check the cabin air filter (Fig. 56/6) every week fr cntaminatin, r mre ften after dusty deplyments. The filter is dismantled as fllws: 1. Park the vehicle n a level surface and apply the parking brake. 2. Turn ff the engine and remve the ignitin key. 3. Lsen the fur attachment screws fr the prtective screen (Fig. 56/5) and remve it. 4. Remve the cabin air filter (Fig. 56/ 6) and clean it r, if necessary, replace it. 6.13.2 Tpping up the refrigerant The refrigerant may nly be pured in by a trained technician and in accrdance with the rules fr the crrespnding filling system. The filling cver is fund belw the cndenser. Filling vlume: apprx. 850 gram Refrigerant: R134 a Summer peratin Insert the punched plate (Fig. 56/7) behind the filter mat (Fig. 56/6) in such a way that the mark pints t the S. Winter peratin Insert the punched plate (Fig. 56/7) behind the filter mat (Fig. 56/6) in such a way that the mark pints t the W. 139

Maintenance and Servicing 6.13.3 Cndenser fan Check the cndenser (Fig. 56/3) fr the air-cnditining system after every 250 hurs f peratin fr cntaminatin and clean it, if necessary. 1. Park the vehicle n a level surface. 2. Apply the parking brake. 3. Turn ff the engine and remve the ignitin key. 4. Lsen the attachment screws fr the cver (Fig. 56/4) at the tp and the bttm. 5. If required, clean the cntaminated cmpnents with a sft brush r a gentle water jet (d nt use a high pressure washer!). Cautin with ht parts if the equipment had been running earlier. 6.13.4 Air-cnditining unit Check the v-belt fr the air-cnditining unit (Fig. 56/1) after every 250 hurs f peratin as described belw 1. Park the vehicle n a level surface and apply the parking brake. 2. Turn ff the engine and remve the ignitin key. 3. Raise the dirt hpper until the stp is reached. 4. Check the v-belt (Fig. 56/2) fr cnditin and tensin and, if necessary, retighten r replace. 140

Maintenance and Servicing 6.14 Wheels and braking system 1 Frnt jacking pint 2 Rear jacking pint 3 Brake fluid reservir 4 Cver plate 4 3 1 2 Fig.57 141

Maintenance and Servicing 6.14.1 Wheel exchange Repairs n tires and wheels have t be carried ut by authrized wrkshps! When changing wheels and rims, special care has t be taken that the jack is applied nly t the jacking pints prvided. Dismantling 1. Park the vehicle n an even surface and secure against rlling away. 2. Turn ff the engine and remve the ignitin key. 3. Apply the jack safely t the jacking pint (Fig. 57/1) r (Fig. 57/2). 4. Lift the crrespnding side f the axle and nce again check that the vehicle is standing securely. 5. Remve the wheel screws and take the wheel ff. Assembly 1. Fit the wheel nt the centering cllar and lightly tighten all f the wheel screws. 2. Lwer the lifted axle side. 3. Tighten the wheel screws crsswise with a trque wench. The wheel screw are t be tightened t a trque f 130 Nm. 4. After apprx. 50 hurs f peratin the wheel screws have t be re-tightened as described abve. 6.14.2 Checking the tire pressure Check the tire pressure after every 250 hurs f peratin. The permitted tire type and crrect tire pressure is fund in Chapter 5, Technical Data. 142

Maintenance and Servicing 6.14.3 Tpping up the brake fluid The peratr has t check the effectiveness f the braking system every day befre using the equipment. Check the level in the braking fluid reservir (Fig. 57/2) after every 250 hurs f peratin and, if necessary, tp up. The brake fluid reservir is lcated belw the driver seat. Repairs t the braking system have t be carried ut by authrized specialist wrkshps! 1. Remve the cver plate (Fig. 57/3) belw the driver s seat. 2. Unscrew the cver cap fr the brake fluid cntainer and check the level. 3. Tp riginal brake fluid up t the max mark. 4. Screw n the cver cap. Ensure that there are n leaks! Pay attentin t cleanliness! Cntaminated brake fluid can cause the braking system t fail. A majr fall in brake fluid level can indicate wrn brake pads! Cllect drained brake fluid and dispse f with cnsideratin fr the envirnment. 143

Maintenance and Servicing 6.15 Windscreen wiper system 6.15.1 Tpping up water The level has t be checked every day. Open the cver cap n the cntainer (Fig. 58/1) and pur in the windscreen washing water. At temperatures belw 0 degrees (danger f freezing), anti-freeze has t be added t the windscreen washing water. Ensure the crrect mixing rati! If required, a suitable windscreen cleaning agent may be added. Ensure the crrect mixing rati! 1 Fig.58 144

Maintenance and Servicing 6.16 Electrical system 6.16.1 Fuses fr the circuit bard F1 Fuse fr parking light and tail light n the right-hand side 5A F2 Fuse fr parking light and tail light n the left-hand side 5A F3 Fuse RKL 7.5A F4 Series fuse 30A F5 Series fuse 30A F6 Series fuse 30A F7 Fuse fr seat cntact 3A F8 Fuse fr air cndit. system 20A F9 Fuse scket 10A F10 Fuse fr heating fan 15A F11 Fuse (Y6) 3A F12 Fuse fr brake lamp, hrn 10A F13 Fuse fr hydraulic valves, driver s seat 10A F14 Fuse (Y13) 5A F15 Fuse fr fuel valve 25A F16 Fuse fr driving lamps 15A F17 Fuse fr windscreen wiper 10A F18 Fuse fr wrking lamps 15A F19 Fuse fr cntrl lamp, engine 7.5A F20 Fuse fr indicatrs 10A F21 Fuse fr hydraulics (Y9, Y10) radi 7.5A F22 Fuse fr hydraulics (Y4) 7.5A F23 Fuse fr water pump 10A F24 Fuse fr fuel valve 25A Fig.59 145

Maintenance and Servicing 6.16.2 Relay fr circuit bard K1 Relay fr 40/20A K2 Cntrl unit fr seat cntact K3 Relay fr air cnditining unit K4 Relay fr flating psitin f device supprt K5 Relay fr prprtinal valve K6 Relay fr wrk and travel peratin K7 Relay fr restart prtectin Fan/mwer K8 Interval relay fr windscreen wiper (ptinal) K9 Relay fr mwer release K10Relay fr mwer n/ff K11Indicatr relay Fig.60 146

Maintenance and Servicing 6.16.3 Fuses in the switch cabinet F30 Main fuse 80A F31 Fuse fr reversing signal (ptinal) 5A F32 Fuse fr battery separatin switch (ptinal) 3A F33 Fuse scrubber system (ptinal) 15A F34 Fuse preheating 40A 6.16.4 Relay in the terminal bx K12Cntrl unit fr pre-heating K13Cntrl unit fr wing mirrr heating (ptinal) K14Cntrl unit fr cling water level K15Cntrl unit fr windscreen wiper K16Timer fr fuel valve K17Relay fr fuel valve K18Cntrl unit fr ignitin K19Relay 12V - 20/10A K20 Relay fr reversing signal (ptinal) K23Relay 12V - 20/10A K24Relay 12V - 20/10A Fig.61 147

Maintenance and Servicing 6.16.5 Fuses fr prprtinal valve cntrl F25 Fuse fr wing mirrr heating (ptinal) F33 Fuse Hak-Citymaster 1250 15A 6.16.6 Relay fr prprtinal valve cntrl K21Relay fr path dependent spreading K25Relay fr increasing surface pressure K26Relay fr increasing surface pressure K27 Relaiy Scrubber system (ptinnal) K28 Relaiy Scrubber system (ptinal) K29Relay fr lad display (ptinal) Fig.62 148

Maintenance and Servicing 6.17 Lubricatin plan The values given in brackets give the number f lubricatin pints n the cmpnents. The lubricatin pints listed belw are t be greased weekly irrespective f the hurs f peratin. 1 Frnt unit - frnt lifting pint lift cylinder tp and bttm and left-hand/ right-hand side (4x) 2 Frnt unit - frnt lifting pint lefthand/right-hand side (4x) 3 Sweeping system - circular brushes tilting jints left-hand/right-hand side (4x) 4 Sweeping system - vacuum nzzle lifting pint (3x) 5 Sweeping system - circular brushes lever fr sideways mvement (2x) 1 2 2 5 5 4 4 4 3 3 Fig.63 149

Maintenance and Servicing 6 Circulatin water lever (1x) 7 Acceleratr pedal (1x) 8 Brake pedal (1x) 9 Larger material flap (1x) 10 Greasing supprt (2x) (nt fr the Easy Grease ptin) 11 Wing mirrr left-hand/right-hand side (2x) 11 6 7 10 8 9 Fig.64 150

Maintenance and Servicing 12 Lifting pint cylinder fr dirt hpper left-hand/right-hand side (4x) 13 Articulated jint (2x) 14 Easy grease (ptinal) fr: - Articulated jint (2x) - Frnt unit - frnt lifting pint lift cylinder tp and bttm and left-hand/ right-hand side (4x) - Frnt unit - frnt lifting pint lefthand/right-hand side (2x) 15 Ball-and-scket jint fr rear supprt (2x) 15 12 12 13 13 14 Fig.65 151