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1 OPERATION AND PARTS MANUAL SERIES MODEL C-30HDG CONCRETE PUMP (ZENITH 416 GASOLINE ENGINE) Revision #7 (12/04/17) THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.

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3 C-30HDG PUMP PROPOSITION 65 WARNING PAGE 2 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

4 C-30HDG PUMP SILICOSIS/RESPIRATORY WARNINGS WARNING SILICOSIS WARNING Grinding/cutting/drilling of msonry, concrete, metl nd other mterils with silic in their composition my give off dust or mists contining crystlline silic. Silic is bsic component of snd, qurtz, brick cly, grnite nd numerous other minerls nd rocks. Repeted nd/or substntil inhltion of irborne crystlline silic cn cuse serious or ftl respirtory diseses, including silicosis. In ddition, Clifornind some other uthorities hve listed respirble crystlline silics substnce known to cuse cncer. When cutting such mterils, lwys follow the respirtory precutions mentioned bove. WARNING RESPIRATORY HAZARDS Grinding/cutting/drilling of msonry, concrete, metl nd other mterils cn generte dust, mists nd fumes contining chemicls known to cuse serious or ftl injury or illness, such s respirtory disese, cncer, birth defects or other reproductive hrm. If you re unfmilir with the risks ssocited with the prticulr process nd/or mteril being cut or the composition of the tool being used, review the mteril sfety dt sheet nd/or consult your employer, the mteril mnufcturer/supplier, governmentl gencies such s OSHA nd NIOSH nd other sources on hzrdous mterils. Clifornind some other uthorities, for instnce, hve published lists of substnces known to cuse cncer, reproductive toxicity, or other hrmful effects. Control dust, mist nd fumes t the source where possible. In this regrd use good work prctices nd follow the recommendtions of the mnufcturers or suppliers, OSHA/NIOSH, nd occuptionl nd trde ssocitions. Wter should be used for dust suppression when wet cutting is fesible. When the hzrds from inhltion of dust, mists nd fumes cnnot be eliminted, the opertor nd ny bystnders should lwys wer respirtor pproved by NIOSH/MSHA for the mterils being used. MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 3

5 MAYCO C-30HDG (ZENITH) CONCRETE PUMP Proposition 65 Wrning...2 Silicosis/Respirtory Wrnings...3 Tble of Contents...4 Prts Ordering Procedures...5 Pump Specifictions...6 Engine Specifictions...6 Pump Dimensions...7 Sfety Messge Alert Symbols Rules For Sfe Opertion Towing Guidelines Triler Sfety Guidelines Opertion And Sfety Decls...20 Importnt Hnd Signls...21 Pump Components Control Box Components...24 Engine Components...25 Generl Informtion...26 How It Works Operting Informtion Inspection Strtup Shutdown Procedures...37 Mintennce (Pump) Engine Troubleshooting Engine Fult Codes Wiring Digrm (Zenith Wiring Hrness) Wiring Digrm...56 Pin Connections...57 Wiring Digrm (Til Lights)...58 Appendix Slump Test Procedure...60 Concrete Mix Informtion Recommended Shotcrete System Recommended Shotcrete Accessories Explntion of Codes in Remrks Column...68 Suggested Spre Prts...69 TABLE OF CONTENTS COMPONENT DRAWINGS Nmeplte nd Decls Compenstor Piston Rod Assembly Connecting Rod - Drive Side Assembly Rocker Assembly Countershft Assembly Crnkshft Assembly Mnifold Assembly Frme Assembly Axle Assembly Muffler, Air filter And Stop Switch Assembly Clutch Assy Engine Mounting Brckets Assembly Rditor, Mounting Brcket And Hoses Assy Control Box Assembly Bttery Assembly Fuel Tnk Assembly Hopper Assy Hood Assembly Lubriction Pnel Assembly Remote Control Cble Assembly Terms nd Conditions Of Sle Prts Myco Pump Wrrnty Specifiction nd prt number re subject to chnge without notice. PAGE 4 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

6 C-30HDG PUMP PUMP SPECIFICATIONS Tble 1. C-30HDG Pump Specifictions Pump Type Reciprocting Piston Pumping Rte Up to 25 cu. yds. per hour* Verticl Pumping Height Up to 150 ft. (45.73 m) Horizontl Pumping Distnce ft. ( m)* Mx. Concrete Piston Fce Pressure 500 PSI Mximum Aggregte Size 1/2 in. minus (12.7 mm) Hopper Cpcity 6 cu. ft. etc. Mteril Hose 2" or 2-1/2" (50.8 or 63.5 mm)" Weight 2,950 lbs. (1,338 Kg) Lube oil Box 7 Gllons (26.5 Liters) Remote Control 125 ft. cble Stndrd Tire Size 7.35" x 14" (187 x 356 mm) * Volume output will vry depending on mix design, slump, line size used nd job site conditions. Engine TABLE 2. ENGINE SPECIFICATIONS Model Type Bore X Stroke ZENITH 416 ENGINE 4 stroke, overhed vlve, single cylinde horizontl shft gsoline engine 2.99 x 3.23 in. (76 x 82 mm) Compression Rtio 10: 1 D isplcement 97.6 cu. (1,599 cc) C ontinuous Output 61 R.P.M. F uel Tnk Cpcity Approx. 11 U.S. Gllons (42 liters) Fuel Type Unleded Gsoline L ube Oil Cpcity 3.9 qts. (3.7 liters) Engine Speed Full Lod Engine Speed Full Idle Air Clener Engine Lubriction Strting Method Sprk Plug Sprk Plug Gp Dimension (L x W x H) 2650 rpm ±100 (No Lod 2750 rpm +/- 50) (Lod 2750 rpm +/- 100) 875 rpm ±100 Air Horn Type SAE 10W-30 (Oil Grde) SG or SF (Service Clss) Electric Strt B4ES in. ( mm) x x in. (509.9 x x mm) D ry Net Weight 178 lbs (126.3 Kg. ) PAGE 6 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

7 C-30HDG PUMP PUMP DIMENSIONS Figure 1. C-30HDG Concrete Pump Dimensions MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 7

8 FOR YOUR SAFETY AND THE SAFETY OF OTHERS! C-30HDG PUMP SAFETY MESSAGE ALERT SYMBOLS Sfety precutions should be followed t ll times when operting this equipment. Filure to red nd understnd the Sfety Messges nd Operting Instructions could result in injury to yourself nd others. This Owner's Mnul hs been NOTE developed to provide complete instructions for the sfe nd efficient opertion of the Myco Model C-30HDG Concrete Pump. Refer to the engine mnufcturers instructions for dt reltive to its sfe opertion. Before using this pump, ensure tht the operting individul hs red nd understnds ll instructions in this mnul. SAFETY MESSAGE ALERT SYMBOLS The three (3) Sfety Messges shown below will inform you bout potentil hzrds tht could injure you or others. The Sfety Messges specificlly ddress the level of exposure to the opertor, nd re preceded by one of three words: DANGER, WARNING, or CAUTION. DANGER You WILL be KILLED or SERIOUSLY injured if you do not follow directions. WARNING You COULD be KILLED or SERIOUSLY injured if you do not follow directions. CAUTION You CAN be injured if you do not follow directions HAZARD SYMBOLS Potentil hzrds ssocited with opertion of the pump will be referenced with Hzrd Symbols which pper throughout this mnul, nd will be referenced in conjunction with Sfety Messge Alert Symbols. Some exmples re listed below: WARNING - LETHAL EXHAUST GASES Gsoline engine exhust gses contin poisonous crbon monoxide. This gs is colorless nd odorless, nd cn cuse deth if inhled. NEVER operte this equipment in confined re or enclosed structure tht does not provide mple free flow ir. WARNING - EXPLOSIVE FUEL Gsoline is extremely flmmble, nd its vpors cn cuse n explosion if ignited. DO NOT strt the engine ner spilled fuel or combustible fluids. DO NOT fill the fuel tnk while the engine is running or hot. DO NOT overfill tnk, since spilled fuel could ignite if it comes into contct with hot engine prts or sprks from the ignition system. Store fuel in pproved continers, in well-ventilted res nd wy from sprks nd flmes. NEVER use fuel s clening gent. WARNING - BURN HAZARDS Engine components cn generte extreme het. To prevent burns, DO NOT touch these res while the engine is running or immeditely fter opertions. NEVER operte the engine with het shields or het gurds removed. PAGE 8 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

9 WARNING - ROTATING PARTS C-30HDG PUMP SAFETY MESSAGE ALERT SYMBOLS NEVER operte equipment with covers, or gurds removed. Keep fingers, hnds, hir nd clothing wy from ll moving prts to prevent injury. CAUTION - ACCIDENTAL STARTING ALWAYS plce the Engine ON/OFF switch in the OFF position nd remove the ignition key when the pump is not in use. CAUTION - OVER-SPEED CONDITIONS NEVER tmper with the fctory settings of the engine governor or settings. Personl injury nd dmge to the engine or equipment cn result if operting in speed rnges bove mximum llowble. This pump, other property, or the surrounding environment could be dmged if you do not follow instructions. CAUTION - RESPIRATORY HAZARDS ALWAYS wer pproved respirtory protection. CAUTION - SIGHT AND HEARING HAZARDS ALWAYS wer pproved eye nd hering protection. CAUTION - EQUIPMENT DAMAGE MESSAGES Other importnt messges re provided throughout this mnul to help prevent dmge to your concrete pump, other property, or the surrounding environment. WARNING DO NOT operte t pressures exceeding the rting of the entire mteril delivery system. Use snp pins on ll snp couplings. MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 9

10 DANGER - Red This Mnul! Filure to follow instructions in this mnul my led to serious injury or even deth! This equipment is to be operted by trined nd qulified personnel only! This equipment is for industril use only. The following sfety guidelines should lwys be used when operting the Myco C-30HDG Concrete Pump: Generl Sfety DO NOT operte or service this equipment before reding this entire mnul. ALWAYS red, understnd, nd follow procedures in Opertor s Mnul before ttempting to operte equipment. ALWAYS be sure the opertor is fmilir with proper sfety precutions nd opertions techniques before using pump This equipment should not be operted by persons under 18 yers of ge. ALWAYS red, understnd nd follow procedures in Opertor s Mnul before ttempting to operte equipment. ALWAYS be sure the opertor is fmilir with proper sfety precutions nd opertions techniques before using pump NEVER operte this equipment without proper protective clothing, shtterproof glsses, steel-toed boots nd other protective devices required by the job. NEVER operte this equipment when not feeling well due to ftigue, llness or tking medicine. NEVER operte this equipment under the influence of drugs or lcohol. ALWAYS wer proper respirtory (msk), hering nd eye protection equipment when operting the concrete pump. C-30HDG PUMP RULES FOR SAFE OPERATION Whenever necessry, replce nmeplte, opertion nd sfety decls when they become difficult red. Mnufcture does not ssume responsibility for ny ccident due to equipment modifictions. NEVER use ccessories or ttchments, which re not recommended by Multiquip for this equipment. Dmge to the equipment nd/or injury to user my result. NEVER touch the hot exhust mnifold, muffler or cylinder. Allow these prts to cool before servicing engine or concrete pump. High Tempertures Allow the engine to cool before dding fuel or performing service nd mintennce functions. Contct with hot! components cn cuse serious burns. The engine section of this concrete pump requires n dequte free flow of cooling ir. NEVER operte the concrete pump in ny enclosed or nrrow re where free flow of the ir is restricted. If the ir flow is restricted it will cuse serious dmge to the concrete pump or engine nd my cuse injury to people. Remember the concrete pump's engine gives off DEADLY crbon monoxide gs. ALWAYS refuel in well-ventilted re, wy from sprks nd open flmes. ALWAYS use extreme cution when working with flmmble liquids. When refueling, stop the engine nd llow it to cool. DO NOT smoke round or ner the mchine. Fire or explosion could result from fuel vpors, or if fuel is spilled on hot engine. NEVER operte the concrete pump in n explosive tmosphere or ner combustible mterils. An explosion or fire could result cusing severe bodily hrm or even deth. Topping-off to filler port is dngerous, s it tends to spill fuel. Stop the engine when leving the concrete pump unttended. DO NOT leve the pump unttended. Use chock blocks if prking pump on grde. Mintin this equipment in sfe operting condition t ll times. PAGE 10 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

11 CAUTION must lwys be observed while servicing this pump. Rotting prts cn cuse injury if contcted. ALWAYS stored the pump in clen, dry loction out of the rech of children. ALWAYS use extreme cre when operting ner obstructions, on slippery surfces, grdes nd side slopes. Unuthorized equipment modifictions will void ll wrrnties. Refer to the Engine Owner's Mnul for engine technicl questions or informtion. Before strt-up, check the hopper nd remove ll obstructions. Keep ll hnds out of the hopper when the engine is running. DO NOT operte the pump with the hood open. Replce ny worn or dmged pump components immeditely. ALWAYS turn the engine OFF before performing must be before performing mintennce. ALWAYS mke sure pump is correctly secured to the triler. Check ll supports ttching the pump to the triler nd mke sure they re tight. ALWAYS mke sure tht the pump's triler is plced on solid level ground so tht it cnnot slide or shift round, endngering workers. Plce blocks under the triler's bumper to mke it level (prevents tipping), nd use chocked block underneth the wheels to prevent rolling. Also keep the immedite re free of bystnders. Before towing, check the hitch nd secure the sfety chin to the towing vehicle. Also check for proper tire pressure. Tow only with vehicle nd hitch rted to tow 2,950 lbs. (1,338 Kg) lod. If pump is equipped with bll hitch coupler, use only 2 ll steel bll rted for minimum of 5000 lbs. Use 1 hrdened steel pull pin, if the pump is equipped with pin hitch. ALWAYS check the mchine for loosened threds or bolts before strting. C-30HDG PUMP RULES FOR SAFE OPERATION A copy of this mnul shll ccompny the pump t ll times. DO NOT use worn out hoses or couplings; inspect dily. DO NOT disconnect the hose couplings or nozzle while they re under pressure. Relieve the pressure by mnully swinging the clmp rm ltch hndle to the first open position t the exhust cone outlet. The pump should NEVER be towed in excess of 45 MPH (or less depending on rod conditions). If hose lines re blocked for ny reson, or if the lines re kinked when strting up or during pumping cycle, the pump pressure could strighten out the kink or force out the blockge. This rpid surge of mteril could cuse the lines to move or whip in mnner tht could cuse injury to personnel. Inspect the hose lines t ll times DO NOT tow the pump with the hopper full of mteril. DO NOT tow the pump with the hoses ttched. NEVER disconnect ny emergency or sfety devices. These devices re intended for opertor sfety. Disconnection of these devices cn cuse severe injury, bodily hrm or even deth! Disconnection of ny of these devices will void ll wrrnties. ALWAYS mke sure the delivery system used, pipe hose clmps ect., exceed the rted pressure of the pump. In ddition the pumping system should be checked for worn components prior to strt up. Use snp pins on ll snp couplings. MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 11

12 Mintennce Sfety NEVER lubricte components or ttempt service on running mchine. ALWAYS llow the mchine proper mount of time to cool before servicing. Keep the mchinery in proper running condition. Fix dmge to the mchine immeditely nd lwys replce broken prts. Dispose of hzrdous wste properly. Exmples of potentilly hzrdous wste re used motor oil, fuel nd fuel filters. DO NOT use food or plstic continers to dispose of hzrdous wste. DO NOT pour wste, oil or fuel directly onto the ground, down drin or into ny wter source. Lifting The pump hs n operting weight of pproximtely 2,950 lbs. (1,338 Kg). Use lifting equipment cpble of lifting this weight. C-30HDG PUMP RULES FOR SAFE OPERATION Emergencies ALWAYS know the loction of the nerest fire extinguisher nd first id kit. Know the loction of the nerest telephone. Also know the phone numbers of the nerest mbulnce, doctor nd fire deprtment. This informtion will be invluble in the cse of n emergency. PAGE 12 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

13 Towing Sfety Precutions CAUTION - Locl Towing Regultions Check with your county or stte sfety towing regultions deprtment before towing your concrete pump. To reduce the possibility of n ccident while trnsporting the pump on public rods, lwys mke sure tht the triler nd the towing vehicle re in good operting condition nd both units re mechniclly sound. The following list of suggestions should be used when towing the pump: Mke sure tht the hitch nd coupling of the towing vehicle re rted equl to, or greter thn the triler "gross vehicle weight rting" (GVWR). ALWAYS inspect the hitch nd coupling for wer. NEVER tow the light tower's triler with defective hitches, couplings, chins etc. CHECK the tire ir pressure on both the towing vehicle nd the triler. Also check the tire tred wer on both vehicles. ALWAYS mke sure the triler section of the pump is equipped with "Sfety Chin". ALWAYS ttch triler's sfety chin to frme of towing vehicle. ALWAYS mke sure tht the vehicle nd triler directionl, bckup, brke, nd triler lights re connected properly nd re working properly. Remember in most cses the mximum speed unless otherwise posted for highwy towing is 45 MPH, however before towing your pump, check your locl stte, nd county vehicle towing requirements. Recommended off-rod towing is not to exceed 10 MPH or less depending on type of terrin. Plce chocked blocks underneth wheel to prevent rolling, while prked. Depending on soil conditions nd loction it my be necessry to plce support blocks underneth the triler's bumper to prevent tipping, while prked. Inflte tires to correct pressure, inspect tires for cuts, nd excessive wer. See Tble 3 (Tire Wer Troubleshooting). C-30HDG PUMP TOWING GUIDELINES Check wheel mounting lug nuts with torque wrench. Torque wheel lug nuts s described in the "Lug Nut Torque Requirements", Tble 5. Mke sure brkes re synchronized nd functioning properly. Check tightness of suspension hrdwre (nuts nd bolts). Avoid sudden stops nd strts. This cn cuse skidding, or jckknifing. Smooth, grdul strts nd stops will improve gs milge. Avoid shrp turns to prevent rolling. Retrct wheel stnd when trnsporting. DO NOT trnsport pump with fuel in the fuel tnk. CAUTION - Never Use Defective Couplers If the triler coupler is deformed replce entire coupler. NEVER tow the pump with defective triler coupler. There exist the possibility of the triler seprting from the towing vehicle. Pump Triler Vehicle Connection 1. Check the vehicle hitch bll, nd triler coupler for signs of wer or dmge. Replce ny prts tht re worn or dmged before towing. 2. Use only the 2-inch bll dimeter with towing cpbility of 5,000 lbs. (2,268 kg) s indicted on the triler's coupler. Use of ny other bll dimeter will crete n extremely dngerous condition which cn result in seprtion of the coupler nd bll or bll filure. 3. Be sure the coupler is secured to the hitch bll nd the lock lever is down (locked). 4. Attch sfety chins s shown in Figure 2. Remember to cross the sfety chins. 5. After towing for bout 50 miles recheck the entire towing system for tightness. Recommended Mintennce 1. Smer bll socket nd clmp fce with chssis grese. Periodiclly oil pivot points nd were surfces of coupler with SAE 30 W motor oil. 2. When prking or storing the concrete pump, keep the coupler off the ground so dirt nd other debris will not build up in the bll socket. PAGE 14 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

14 Figure 2 shown below illustrtes the typicl towing ppliction tht should be used when towing the pump. C-30HDG PUMP TOWING GUIDELINES Figure 2. Towing Applictions MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 15

15 Triler Sfety Precutions CAUTION - Generl Triler Sfety ALWAYS mke sure tht the triler is in good operting condition. Check the tires for proper infltion nd wer. Also check the wheel lug nuts for proper tightness. This section is intended to provide the user with triler service nd mintennce informtion. Remember periodic inspection of the triler will ensure sfe towing of the equipment nd will prevent dmge to the equipment nd personl injury. It is the purpose of this section to cover the mjor mintennce components of the triler. The following triler components will be discussed in this section: Tires Lug Nut Torquing Suspension Electricl C-30HDG PUMP TRAILER SAFETY GUIDELINES The following list defines the mjor triler components: 1. Fuel Cell Provides n dequte mount of fuel for the equipment in use. Fuel cells must be empty when trnsporting equipment. 2. Frme Length This mesurement is from the bll hitch to the rer bumper (reflector). 3. Frme Width This mesurement is from fender to fender. 4. Jck Stnd Triler support device with mximum pound requirement from the tongue of the triler. 5. Coupler Type of hitch used on the triler for towing. This unit employes 2 in. bll. 6. Tires Size Indictes the dimeter of the tire in inches (10, 12, 13, 14, etc. ), nd the width in millimeters (175, 185, 205 etc.). The tire dimeter must mtch the dimeter of the tire rim. This unit employes 7.35 x 14 in. tires. 7. Tires Ply The tire ply (lyers) number is rted in letters: 2-ply, 4-ply, 6-ply, 8-ply, 10-ply etc. This unit employes 4-ply tires. 8. Wheel Hub The wheel hub is connected to the triler's xle. 9. Tire Rim Tires re mounted on tire rim. The tire rim must mtch the size of the tire. 10. Lug Nuts Used to secure the wheel to the wheel hub. Alwys use torque wrench to tighten down the lug nuts. See Tble 5 nd Figure 4 for lug nut tightening nd sequence. This unit employes 5 lug nuts to secure the wheel to the hub. 11. Axle This triler employes torsion br type suspension, which cn support 3,500 lbs. 12. Electricl Electricl connectors (looms) re provided with the triler so tht brke lights nd turn signl lights cn be connected to the towing vehicle. See Triler Wiring Digrm for proper wiring connections. PAGE 16 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

16 Tires/Wheels/Lug Nuts Tires nd wheels re very importnt nd criticl components of the triler. When specifying or replcing the triler wheels it is importnt the wheels, tires, nd xle re properly mtched. CAUTION - Generl Triler Sfety DO NOT ttempt to repir or modify wheel. DO NOT instll n inter-tube to correct lek through the rim. If the rim is crcked, the ir pressure in the inter-tube my cuse pieces of the rim to explode (brek-off) with gret force nd cn cuse serious eye or bodily injury. Tires Wer/Infltion Tire infltion pressure is the most importnt fctor in tire life. Pressure should be checked cold before opertion. DO NOT bleed ir from tires when they re hot. Check infltion pressure weekly during use to insure the mximum tire life nd tred wer. Tble 3 (Tire Wer Troubleshooting) will help pinpoint the cuses nd solutions of tire wer problems. ALWAYS wer sfety glsses when removing or instlling force fitted prts. Filure to comply my result in serious injury. C-30HDG PUMP TRAILER SAFETY GUIDELINES Torsion Br Suspension The torsion br suspension nd ssocited hrdwre (Figure 3) should be visully inspected every 6,000 miles for signs of excessive wer, elongtion of bolt holes, nd loosening of fsteners. Replce ll dmged prts (suspension) immeditely. Figure 3. Mjor Suspension Components MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 17

17 Lug Nut Torque Requirements It is extremely importnt to pply nd mintin proper wheel mounting torque on the triler. Be sure to use only the fsteners mtched to the cone ngle of the wheel. Proper procedure for ttchment of the wheels is s follows: 1. Strt ll wheel lug nuts by hnd. 2. Torque ll lug nuts in sequence (Figure 4). DO NOT torque the wheel lug nuts ll the wy down. Tighten ech lug nut in 3 seprte psses s defined by Tble After first rod use, retorque ll lug nuts in sequence. Check ll wheel lug nuts periodiclly. Wheel Size Tble 4. Tire Torque Requirements First Pss FT-LBS Second Pss FT-LBS C-30HDG PUMP TRAILER SAFETY GUIDELINES Third Pss FT-LBS 12" " " " " Figure 4. Wheel Lug Nuts Tightening Sequence NEVER! use n pneumtic ir gun to tighten wheel lug nuts. PAGE 18 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

18 C-30HDG PUMP OPERATION AND SAFETY DECALS Figure 5 disply's the opertion nd sfety decls s they pper on the concrete pump, should ny of these decls become dmged or unredble, contct the Multiquip Prts Deprtment for replcement set. Figure 5. Opertion nd Sfety Decls PAGE 20 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

19 C-30HDG PUMP IMPORTANT HAND SIGNALS Figure 6 disply's the bsic hnd signls commonly used in concrete pumping opertions. Figure 6. Opertion Hnd Signls MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 21

20 C-30HDG PUMP PUMP COMPONENTS Figure 7. Mjor Pump Components PAGE 22 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

21 Figure 7 illustrtes the loction of the mjor components for the C-30HDG Concrete Pump. The function of ech component is described below: 1. Dischrge Cone Connect 3" elbow to this dischrge port, then connect 3" x 2" reducer to elbow. 2. Dischrge Cone Sfety Ltch When towing of the pump is required, ALWAYS secure the dischrge cone to ltch locted on the mnifold. 3. Rer Running Lights ALWAYS check nd mke sure both the right nd left running lights re functioning correctly before towing the pump. 4. Hopper Concrete from Redi-Mix truck is poured into this hopper. The hopper cn hold 6.0 cu. ft of concrete. NEVER put hnds or ny other prts of you body into the hopper. 5. Sfety Grill The sfety grill should be locked t ll times when the pump is being towed. Under norml working conditions, rise nd plce the sfety grill on the support hooks which re locted on splsh gurd. 6. Comprtment Hood NEVER operte the pump with the hood removed. Instlled on the pump frme is sfety interlock device which prevents the engine from strting if the hood is removed or in the up position (open). 7. Hood Fstener When the hood is in the down position, secure the rubber ltch to this fstener. 8. Hood Lift Hndle Grip this hndle, pull upwrd then bck to rise the comprtment hood. 9. Control Box Contins the mechnicl nd electricl components required to run the pump. Below is list of those components: Throttle Control Switch Pumping Control Check Engine Indictor Hood Open Indictor Engine Hour Meter Ignition Switch Remote Connector 10. Rditor/Cp Fill with wter/nti-freeze type solution s recommended in the mintennce section of this mnul. ALWAYS mke sure tht the rditor is filled to the proper operting level before strting the engine. 11. Fuel Tnk/Cp Fill with unleded fuel. Fuel tnk (cell) holds pproximtely 11 gllons (42 liters). DO NOT top off fuel. Wipe up ny spilled fuel immeditely C-30HDG PUMP PUMP COMPONENTS 12. Tow End Jck Stnd Use this jck stnd to level nd support the pump. 13. Tow Hitch Coupler Requires 2-inch bll hitch or 3- inch pintle. Cpble of towing 5,000 lbs. 14. Sfety Chin ALWAYS ttch sfety chin to the towing vehicle. NEVER! tow the pump with the sfety chin unttched. 15. Engine Sfety Device This device will return the engine speed to idle if the comprtment hood is in the UP position. The comprtment hood must be in the DOWN position for the pump to operte t high rpm's. 16. Grese Port Console This console llows for the remote lubriction of components on the pump. 17. Access Door There re four ccess doors on the pump. Remove these door to gin ccess to drive nd piston ssemblies when mintennce is required. 18. Drive Chin Keep this chin properly lubricted nd ligned t ll times. Lubricte this chin s specified in the mintennce section of this mintennce. 19. Rubber Ltch Secure this rubber ltch to the hood fstener whenever the pump is in use or being towed. 20. Tires Ply The tire ply (lyers) number is rted in letters; This triler uses 4-ply tires. 21. Chock Blocks Plce these blocks (not included s prt of your concrete pump pckge) under ech triler wheel to prevent rolling. 22. Pump End Jck Stnd Use this jck stnd to level nd support the pump. 23. Dischrge Cone Relese Lever secures the dischrge cone to the "Y" mnifold; lso relieves mnifold pressure. 24. Documenttion Box Contins engine nd pump opertion, prts nd mintennce informtion. 25. Lubriction Box This box is empty when shipped from the fctory. Plese fill with 7 gllons ( 26.5 liters) of SAE motor oil for first time use. Also check the dul clen-out point on bottom of lubriction box for secure tight fit. 26. Overflow Bottle Fill with coolnt. Mintin coolnt t proper level. See fluid level mrkings on side of bottle. 27. Cm Bering Felt ring must be peridiclly lubricted pplying 4 or 5 drops of 30 wt. motor oil until the felt ring is moist. MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 23

22 Figure 8 illustrtes the loction of the mjor components for the C-30HDG Control Box. The function of ech component is described below: 1. Throttle Control Switch This is vrible speed type control. Holding the control switch to the left increses the engine speed. To plce the engine t IDLE speed, hold the control switch to the right nd let the engine run for 3-5 minutes. 2. Emergency Stop Button In the event of n emergency or to shutdown the engine, push RED emergency stop button inwrd. This will stop the engine. To restrt engine, emergency stop button must be relesed from the stop position. Simply pull bck on the emergency stop button to relese. 3. Ignition Switch Insert the ignition key here to strt the engine. Turn the key clockwise to the ON position, then continue turning clockwise to the START position nd relese. To stop the engine turn the key fully counterclockwise to the STOP position. 4. Remote Control Input Connector Insert the remote control input cble into this connector. C-30HDG PUMP CONTROL BOX COMPONENTS Figure 8. Pump Control Box Components 5. Pumping Control Switch This 3-position switch controls the pumping of the pump. The left most position is for use with the remote control unit, the center position is for off (prevents pumping), nd the right most position is for norml pump opertion. 6. Hourmeter Disply's the number of hours the pump hs been in use. 7. Hood Open Lmp When lit (red) indictes tht the hood hs been rised (open) during pumping opertion. This condition will force the engine into idle mode. 8. Check Engine Lmp When lit (yellow) indictes tht n engine error s occured. See Tble 7 for listing of engine dignostic error codes. PAGE 24 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

23 Figure 9. Zenith 416 Bsic Engine Components Figure 9 illustrtes the loction of the bsic components for the Zenith 416, 1.6 liter gsoline engine..the function of ech component is described below: 1. Air Filter Prevents dirt nd other debris from entering the fuel system. Remove wing-nut on top of ir filter cnnister to gin ccess to filter element. Replce with only mnufctures recommended type ir filter. 2. Fuse Connector Contins fuses for electricl system. replce with only recommended type fuses. 3. Oil Filler Port Cp Remove this cp to dd engine oil to the crnkcse. Fill with recommended type oil s specified in the mintennce section of this mnul 4. Sprk Plug Provides sprk to the ignition system. Set sprk plug gp to mm ( inch). Clen sprk plug once week 5. Dipstick Remove this dipstick to determine if engine oil is low. Mintin oil level t the "H" mrking on the dipstick. NEVER run engine with low oil. 6. Alterntor Provides power to the electricl system. Replce with only mnufctures recommended type lterntor. 7. Oil Filter Replce this oil filter s recommended in the mintennce section of this mnul. C-30HDG PUMP ENGINE COMPONENTS 8. Fn V-Belt ALWAYS mke sure tht V-belt is properly tensioned. A loose or defective V-belt cn dversely ffect the performnce of the pump. 9. Crnkcse Drin Plug Remove this plug to drin engine oil from the crnkcse. Replce with recommended engine oil s specified in the mintennce section of this mnul. 10. Cooling Fn Bldes Mke sure tht the bldes of the cooling fn re not bent or broken. A dmged fn blde cn cuse the engine to run hot nd overhet. 11. Control Relys Includes min rely, fuel pump rely nd strter rely. Replce with only recommended type relys. 12. Strter Motor/Solenoid NEVER llow concrete or ny foreign debris to come in contct with the strter motor/ solenoid. 13. Fuel Filter/Fuel Pump/Fuel Regultor Replce or clen the fuel filter, fuel pump or fuel regultor s specified in the mintennce section of this mnul. Operting the engine without n ir filter, with dmged ir filter, or filter in need of replcement will llow dirt to enter the engine, cusing rpid engine wer. MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 25

24 The following operting principles nd operting suggestions should prove helpful in the successful opertion of your concrete pump. Your new smll line concrete pump hs been designed to give you mny yers of service when operted properly. A study of the following prgrphs is importnt to the successful opertion of your new Direct-flow Concrete Plcer. All concrete pumps require high level of opertor skill nd more frequent service thn most of the other construction equipment. The highly brsive nture of concrete under pressure mkes it extremely importnt tht expendble wer components be inspected t regulr intervls between jobs to prevent hving to replce these items during pour. Experience hs proved tht inconsistency of btched concrete mixes nd frequent moving of the line requires the opertor to be redily vilble t ll times during pumping to stop the pump nd prevent buse to the unit which my occur if unexpected blockges develop. Pump Mix Guidelines When ordering concrete, be certin to dvise the concrete supplier tht you require pump mix. The Direct-flow mnifold will pump wide vriety of mterils, but certin bsic principles must be followed to ssure successful pumping, s follows: Generlly speking, the wshed concrete snd nd #4 ggregte (pe grvel) should conform to A.S.T.M. stndrds in regrd to sieve nlysis. Snds in some res re wshed clen of the #100 nd #200 mesh fines, which results in seprtion nd jmming in the mnifold while pumping under pressure. If this condition develops, check with your concrete suppliers engineers nd get their recommendtions for supplementing the lck of the fines. The use of loclly ccepted d-mixes my be required. (For exmple, Pozzolith, Bentonite Cly, Plstiments, etc.) When properly prescribed, dditives form the plstic pste sometimes necessry to hold the cement nd ggregte together. If jmming conditions in the pump or hose occur for ny reson t ll, do not ttempt to use more power to correct the condition. Determine the cuse of jmming, correct it nd resume pumping. Trying to force mteril through under jmmed conditions my result in dmge to the drive system, thus voiding ny wrrnty services. C-30HDG PUMP GENERAL INFORMATION As generl rule, the use of pproximtely six scks of cement, 70% wshed concrete snd nd 30% #4 pe grvel per yrd of concrete will result in pumpble mix. The idel nture of snd nd rock in certin res my permit you to increse the percentge of rock or djust the mix considerbly to meet the job requirements. When possible, you my experiment with vrious mixes in your re to determine the degree of verstility of the Direct-flow Pump. Uniform grdtion of the wshed concrete snd nd the 1/2 minus ggregte long with sufficient cement content nd wter re importnt to successful pump opertion. A recommended pumpble mix design would be 70% snd nd 30% ggregte-cement content to be minimum of 6 scks. (564 lbs.) Your locl snd nd rock engineers will give you the S.S.D. weights of snd nd rock required in your locl re which will yield one cubic yrd per the bove recommendtion. Smple Design Mix Psi 3/8 in. Slump 4-5 in. Type II Cement 6.49 sck/cu. yd 611 lbs. Snd St. Surf. Dry 2000 lbs. #4 Grvel St. Surf. Dry 864 lbs. #3 Grvel St. Surf. Dry 0 lbs. Wter 48 Gllons 400 lbs. Totl Weight 3,906 lbs Admixture WRDA oz. Wter 7.40 gl/sck Test lbortory dt hs proven in mny res tht the bove mix guidelines hve produced concrete rted t 3000 psi (28 dy test) nd upwrds of 5000 psi with n increse in cement. In some res where the grdtion of snd nd rock is idel nd sufficient cement is used long with dmixtures, the Myco smll line concrete pump will hndle up to rtio of snd nd rock. When the mix is designed for wet gunning pplictions, it is norml to increse the cement (up to 7.5 or 8 scks) nd chnge the snd to rock rtio to 85% snd nd 15% rock. The Myco concrete pump will vlve efficiently when using cellulr-fom concrete mixes upwrds of 70 lbs. per cubic foot wet density. (Below 70 lbs. mterils (roof decks) the vlving becomes inefficient.) PAGE 26 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

25 The C-30HDG concrete pump hs one min pumping piston which is vlved by mens of two bll checks. (A inlet, nd B outlet.) The secondry piston is used s compenstor piston to smooth out the pulstions of single piston ction. Note: The compenstor will not strt operting until mteril is pumped into the line nd bck pressure develops. The compenstor spring, which is instlled on the compenstor piston rod, deflects with ech piston stroke. This spring cushion, in conjunction with the cm profile, produces nd uninterrupted smooth flow of mteril under verge pumping conditions. The pumping cylinder (Figure 10) retrcts drwing the mteril pst the bll (A) nd filling the cylinder. The compenstor piston is pumping the mteril out to the nozzle nd cusing bll (B) to set preventing the mteril from returning to the pumping cylinder intke. Figure 10. Pumping Cylinder C-30HDG PUMP HOW IT WORKS An utomtic, centrifugl clutch is instlled to engge nd disengge the pumping ction without stopping or strting the engine. The centrifugl clutch is set t 1100 R.P.M. The engine idle speed is pproximtely 875 R.P.M.; therefore, the clutch is completely disengged t idle. The throttle settings while pumping should lwys mintin n engine R.P.M. high enough to prevent the clutch from slipping nd burning the clutch lining. The return spring which is instlled on the rocker rm, is instlled to eliminte shock nd stress between the cm roller nd the cm weldment when the pump is in opertion. If the return spring is removed or replced for ny reson, mintin the bcking plte dimension of 3 s shown on Figure 3, to produce the proper pre-loding of the spring for smooth performnce. MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 27

26 The pumping piston (Figure 11) is forcing the mteril pst bll (B) nd out to the nozzle, lso seting bll A so tht the mteril will not flow bck to the hopper. This ction lso fills the compensting piston for the next stroke. Figure 11. Pumping Pistons Figure 12 shows the reltionship between the return spring, the compenstor spring nd the rocker rm to mintin smooth performnce. DO NOT tighten the bolt (Item 1) completely, the rod end must be ble to move. The return spring is instlled to eliminte shock nd stress between the cm roller nd the cm weldment when the pump is in opertion. If the return spring is removed or replced for ny reson, mintin the bcking plte dimension (3-inches) s shown to produce proper pre-loding of the spring for smooth performnce. Figure 12. Return Spring, Compenstor Spring nd Rocker Arm Interction C-30HDG PUMP HOW IT WORKS PAGE 28 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

27 OPERATING SUGGESTIONS 1. A well-plnned loction of the pump nd routing of the hose before strting pour my sve subsequent moves throughout the job. 2. Before concrete is dischrged into the hopper, it is suggested tht 3 to 4 gllons of wter be spryed into the hopper, followed by pproximtely 5 gllons of cremy cement nd wter slurry (1/2 bg of cement to 5 gllons of wter). This procedure lubrictes the hose nd prevents seprtion nd blockges in the hose. Getting the concrete to flow through the hose t the strt of the pumping cycle cn be one of the most criticl opertions of the pour. (Mnully operte the throttle when strting, NOT remotely) WARNING - Hose Blockge Hzrd If hoses or lines re blocked for ny reson, or if the lines re kinked when strting up or during the pumping cycle, the pump pressure could strighten out the kink or force out the blockge. This rpid surge of mteril could cuse the lines to whip or move in mnner tht could cuse injury to personnel. Inspect the lines t ll times to prevent the bove conditions 3. It is importnt tht once the slurry procedure is completed, nd you hve strted concrete flowing through the hose, do not stop the pour until ll the slurry is pumped out nd the concrete hs reched the end of the hose. The only time to stop the pump t the strt is if blockge occurs. 4. When the pump is stopped for ny reson during pour; e.g., moving hose, witing for redi-mix truck, the following suggestions re offered: A. Leve the hopper full of concrete t the time of shutdown. It is importnt not to let the redi-mix driver wsh too much wter into the hopper, s this could cuse seprtion of the concrete in the hopper. B. If the shutdown period exceeds 2 to 3 minutes, turn off the engine so the vibrtion does not seprte the mix in the hopper which cn cuse blockge in the mnifold when the pump is strted. C-30HDG PUMP OPERATING INFORMATION C. If it is necessry to wit 10 minutes or more for nother lod of concrete, it is wise to strt the pump nd pump 6 or 8 strokes every 5 minutes to prevent setting of the mix in the system. If witing time is excessive, it would be wise to wsh out the pump nd hoses nd strt over when the new truck rrives. D. When pumping stiff mixes nd there is witing time between redi-mix trucks, it is dvisble to dd some wter to the lst hopper of mteril nd hnd mix to ensure n esier strt with the following lod. E. When the pumping job requires stiffer mix, the following method is suggested for strting: Tke wter hose with nozzle on it nd pply wter with fine spry to the concrete s it comes down the redi-mix chute into the pump hopper fter the slurry procedure is completed nd you re redy to strt pumping. Using this procedure will mke it esier to pump through the clen hose. Note: Once the concrete hs reched the end of the hose, do not pply ny more wter in this mnner s this procedure is used on the strt only. F. Hose sizing is very importnt: We strongly recommend on hrsh mixes, verticl pushes, stiff concrete, shotcrete, long pushes, tht 2-1/2 line be used s fr s possible. The dvntges of using the 2-1/2 line re improved pumpbility, less pumping pressure nd less wer on the pump. 5. Following the pump opertion, proper wsh out of ll mterils or build-up within the pump mnifold nd hoses will prevent problems when strting the next job. 6. A thorough inspection of the drive components nd gresing of ll berings fter ech job will ensure dequte lubriction nd service to the pump which is normlly operting in wet, gritty conditions. Over-gresing ny bering on your Myco pump will not dmge the bering. MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 29

28 WARNING - Hose Blockge Hzrd If you repetedly pull the throttle ll the wy out nd try to force your pump to push through blockges due to seprtion of mteril in the hose or mnifold, you will soon hve brekdowns nd costly repirs which re not covered under wrrnty. If blockge occurs, find where it is nd cler it before further pumping. DO NOT increse the engine speed to cler the blockge. Incresing the engine speed will only compound the problem. WARNING - Moving The Pump On The Job Site It will be necessry t times to move your pump from one job site loction to nother. Before moving the pump, mke sure to pump the remining concrete out of the hopper. Moving the pump with full hopper of concrete cn cuse severe dmge or brekge of the xle nd xle springs, excess strin nd pressure on the hub nd bering ssembly. New Pumps All new pumps re wter pressure tested t the fctory before shipment. This procedure permits thorough inspection of the entire drive system nd vlving under simulted full lod conditions. The pump owner cn do the sme by ttching n dptor couple to the end of the dischrge cone; e.g., the use of stndrd 2 in. pipe cp with 3/8 in. hole drilled in the center, screwed on to the end of the hinged cone or reducer t the pump. Fill the hopper with wter fter mking sure tht ll snd nd rock hve been removed from the mnifold. Operte the pump t full throttle nd the 3/8 in. dimeter hole restriction will crete sufficient bck-pressure to mke thorough inspection of ll moving prts. Pumping Tips 1. The effects of het nd excessive time on concrete: Hot concrete, commonly referred to s hot lod, is concrete tht hs been in the redi-mix truck in excess of 2 to 3 hours. On hot dy, this mount of time is even less. A brief explntion of why het nd time ffect concrete: Concrete strts setting by drying up through chemicl rection. The ctlyst to this rection is het. When pumping hot lod, it is importnt to remember tht when you hve to stop pumping for ny reson, dd wter to the concrete in the hopper nd hnd mix nd move concrete in the hose every 5 minutes. If the shut down time becomes too long, wsh out immeditely. C-30HDG PUMP OPERATING INFORMATION 2. ADMIXTURES Remixtures tht re designed into the concrete mix by the redi-mix compny or n rchitecturl engineering compny. This section lists common dmixtures nd brief explntion of their functions: A. Pozzolith 300 or the equivlent cts s wter retrder nd lubricnt. On len mix, long pushes, stiff mixes, nd verticl pushes, Pozzolith 300R helps pumpbility. B. MBVR ir entrining, cts s lubricnt. C. Clcium Chloride commonly referred to s C.C., is used s n ccelertor. When pumping lod with clcium chloride, it is recommended tht you wsh out if the witing time between delivery trucks becomes too long. D. Super Plsticizers cts s n ccelertor. The concrete will look very wet fter the super plsticizer is dded, but will begin to set up very fst. Wsh out immeditely if you do not hve truck witing. Super plsticizers re used minly on commercil jobs. E. Red Lbel cts s wter retrder nd n ccelertor. Red lbel will be used minly on commercil jobs. F. Fly Ash is used to help increse the strength of the concrete nd decrese the cement content per yrd. This is one of the most common dmixtures used. All dmixtures will be shown on the redi-mix concrete ticket. Before strting the pumping job, sk the driver of the redi-mix truck to see the concrete ticket nd note the dmixtures tht exist nd tke the proper ction. 3. When pumping long distnce or pumping stiff mixes, you cn expect drop in volume compred to shorter lines nd wetter mixes due to the chnge in vlve efficiency or cvittion. 4. Leking mnifold sels or hose coupling gskets which lek wter cn cuse seprtion nd subsequent jmming t tht point. 5. Dmged hoses with internl restrictions cn cuse blockges. PAGE 30 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

29 6. If blockge occurs in hose, wlk the hose until you find the point of trouble. The hose will be soft immeditely pst the blockge. If this hppens t the strt, disconnect the hose t the first coupling pst the blockge. Elevte the hose t tht point with the blockge re hnging down. CAUTION - Hose Pressure Hzrd When disconnecting hoses, use extreme CAUTION! The hose is under pressure! Using hmmer, you cn pound the down-strem edge of the pcked re until it is free to flow. Shke ll of the snd nd grvel out to the end of the hose. Before reconnecting the hose, strt the pump nd run smll mount of concrete out to the end of the hose. This will ssure tht ll of the seprtion is out of the hose. 7. Clering Plugged Mnifold The mnifold is plugged if the volume t the dischrge end of the hose stops, nd the hose is soft. The drive belts will strt to slip nd the engine will lugdown. Follow steps 7A through 7J to un-plug clogged mnifold. DANGER - Clering A Plugged Mnifold Due to pressure build-up inside the mnifold, gret cre must be tken when clering plugged mnifold. A. STOP the pump. Switch OFF the engine. B. DO NOT open ny of the delivery system joint clmps. C. The senior opertor must wrn ll others to stnd t lest 20 feet wy from the pump nd turn their heds wy from the mnifold. D. The opertor must position himself/herself wy from the hinged side of the mnifold. E. Wering sfety glsses, grsp the clmp rm weldment nd crefully pull it open to the primry (sfety) position. STOP count to 20. This will llow the pressure to relese. F. After the pressure hs been relesed, open the clmp rm weldment nd swing the hinged dischrge cone open. G. Remove blockge with round 2-foot length of reinforcing steel rod. Flush the mnifolds with wter. Mke sure the (3 x 2 ) reducer is cler of ny blockge before closing the dischrge cone. C-30HDG PUMP OPERATING INFORMATION H. After the blockge hs been clered nd the pump mnifold hs been thoroughly flushed with wter, close the hinged dischrged cone nd lock into plce. I. Before reconnecting hose to the reducer, strt the engine nd pump two or three shovels of concrete through the reducer. This will insure tht ll the blockge hs been clered. J. Shke out round 2 feet of concrete before reconnecting hose to pump. After this is done, connect hose to pump nd resume the pumping opertion. 8. Avoiding Setting of the Mix in the System To void setting of the concrete mix in the system when witing more thn 30 minutes between concrete lods, flush the system depending on job fctors (such s presence of ccelertors nd job site temperture) nd your prticulr mix design. Clering Mix from the System If, for ny reson, the mix should set up in the system, the following procedure is suggested: CAUTION - Hose Pressure Hzrd When disconnecting hoses, use EXTREME CAUTION! The hose is under pressure! 1. Disconnect the hoses from the pump nd wsh the pump out immeditely. For exmple: If you hd 200 ft. of system out, you would disconnect ech hose. 2. Reconnect the first hose nd fill the hopper with wter. DO NOT try to push ll the concrete out of ll of the hose lines t one time. 3. Clen it out by pushing wter through the first hose off the pump, then continue progressing through ll the hoses, until ll the system is clen. 4. If witing time is excessive, it would be wise to wsh out the pump nd hoses nd strt over when the new truck rrives. This cn be voided by being observnt to the pump nd system, lso tking into considertion the bove fctors ffecting the mix. MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 31

30 Down-Hill Pumping Downhill pumping cn be difficult on some jobs. It is suggested tht sponge 2 x 4 x 6 be plced in the hose before the strt of pumping. Wet the sponge before plcing it in the hose. Reference the Operting Suggestions t the strt of this section for slurry procedures. The reson for using the wet sponge is to keep the slurry from running too fr hed of the concrete nd so reducing the possibility of seprtion. When the pump is stopped, the mteril cn flow slowly down, due to grvity, nd cuse the hose to collpse. When pumping is resumed, you cn expect blockge t the point of hose collpse. To prevent this from hppening, the hose cn be kinked off t the dischrge end when the pump is stopped to prevent the grvity flow of the mteril in the hose. The use of stiffer mixes when pumping down-hill will decrese grvity flow of the mteril in the hose nd will ssure smoother opertion between the cm roller bering nd cm plte. As with ny job, mke sure tht the hose nd the couplings re in good workble shpe. Verticl Pumping When pumping verticlly up the side of building, bove 40 feet, we would recommend the instlltion of steel pipe securely fstened t intervls s necessry to support the pipe. Ninety degree, long rdius pipe sweeps should be instlled t the top nd bottom of the steel line. Use 25 ft. hose, or short section, off the pump; nd for the blnce of the horizontl distnce to the verticl line, use steel pipe. This type of instlltion hs been stisfctory on mny jobs being pumped in excess of 100 feet high. Line pressures re lwys less using steel pipe s compred to hose. When pumping verticlly using ll hose, it is recommended not to go higher thn 50 feet with hose. The hose should be tied off t intervls of 10 feet, if possible. Specil ttention should be given when tieing the hose off t the top s the hose will hve tendency to stretch when filled with concrete. This will increse the possibility of blockge t the point where the hose is tied off. To void this, long rdius of 90 degree elbow is recommended. The suggested plce to tie off is on the hose, under the clmp. It is strongly recommended tht steel pipe be used on ALL verticl pumping for sfety nd convenience. C-30HDG PUMP OPERATING INFORMATION Vlve Sets If the volume t the end of hose strts to decrese grdully nd eventully lmost stops, it is quite likely tht the vlve sets hve hd excessive wer nd need replcement. Once they hve reched certin wer point, they my chnnel out rpidly nd mteril will reciprocte pst the bll on ech stroke. The hollow steel bll should be replced when it strts to show dents or ppers to be bdly worn. Snd nd ggregte mterils in some res re extremely shrp nd hrd nd therefore highly brsive. Under these conditions when pumping stiff mixes, or to high elevtions which cuse line pressures, it will be noted tht vlve components my hve short wer life. If this condition exists, it is dvisble to remove the mnifold only, nd inspect the lower set t the end of ech dy. If it ppers tht the set is beginning to chnnel out", replce before strting the next dy s pour. The upper vlve set cn be inspected fter ech wshout by running your finger round lower edge of set where the bll mkes contct. You cn rech this from the inside of the hopper. Be sure tht the engine is turned off. Pulstion A slight pulstion of the hose will lwys be noticeble ner the pump. Excessive pulstion of the hose ner the pump is normlly due to higher thn verge line pressures cused by stiff, hrsh mixes, or extremely long pumping distnces. The use of 2-1/2 I.D. hose in these extreme cses reduces line pressures or the ddition of slight mounts of wter to the mix, if permissible, will permit esier pumping. The use of certin pumping dmixtures my help. If excessive pulstion exists in the hose, it is dvisble to use burlp or some mens of wer protection under the hose t points where the hose my wer through the outer cover; e.g. over forms, steel or shrp curbs. PAGE 32 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

31 Cm Roller If the cm roller does not ride on the cm profile smoothly, it my be cused by insufficient line bck-pressure; e.g., wet mix with only 50 feet of hose. Add more hose s necessry. It cn lso be cused by cvittion or the pssing of over-sized ggregtes through the vlving, cusing it to skip. Snp-Joint When using Snp-Joint couplings with gskets to join hose, see tht they re wshed clen fter ech job. Keeping the hose ends clen (hevy duty) is very importnt for the best job setup. A thin cot of grese on the rubber gsket or dipping both coupling nd gsket in wter before coupling the hose will mke for esier instlltion. C-30HDG PUMP OPERATING INFORMATION MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 33

32 CAUTION - Generl Sftey Guidelines NEVER operte the pump in confined re or enclosed re structure tht does not provide mple free flow of ir. ALWAYS wer pproved eye nd hering protection before operting the pump. NEVER operte the pumps's engine with the engine hood removed. The possibility exists of hnds, long hir, nd clothing becoming entngled with the V-belt, cusing injury nd bodily hrm. NEVER plce hnds or feet inside the hopper. ALWAYS mke while the engine is running. ALWAYS shut-down the engine before performing ny kind of mintennce service on the pump. Before Strting 1. Red sfety instructions t the beginning of this mnul. 2. Removing ny dirt nd dust tht might hve ccumulted round the engine cooling ir inlet, fuel injection system. 3. Check the ir filter for dirt nd dust. If ir filter is dirty, replce ir filter with new one s required. 4. Check fuel injection system for externl dirt nd dust. Clen with dry compressed ir. 5. Check fstening nuts nd bolts for tightness. 6. Connect Bttery 7. Mke sure hopper is free of dirt nd foreign debris (lrge objects over 2-inches) 8. Mke sure rditor is filled with proper mount of nti-freeze wter solution (50/50). 9. Mke sure ll hose lines re in good condition nd re working properly. Reference mnufcturer engine mnul for specific servicing instructions. C-30HDG PUMP INSPECTION Engine Oil Check 1. To check the engine oil level, plce the pump on secure level ground with the engine stopped. 2. Remove the dipstick from its holder (Figure 13) nd wipe it clen. Figure 13. Engine Oil Dipstick (Removl) 3. Check the engine oil level s shown on the dipstick (Figure 14). Figure 14. Engine Oil Dipstick 4. If the engine oil level is low, dd oil through the engine oil filler hole (Figure 15) with the recommended oil type (Tble 3). Mximum oil cpcity is 3.9 qurts (3.7 liters). Figure 15. Engine Oil Filler Hole PAGE 34 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

33 Seson TABLE 5. OIL TYPE Temperture Oil Type Summer 25 o C nd greter SAE 10W-30 Spring/Fll 10 o C to 25 o C SAE 10W-30/20 Winter 0 o C or Lower SAE 10W-10 Gsoline Check 1. Remove the gsoline cp locted on top of fuel tnk. 2. Hndle Fuel in sfety continer. If the continer does not hve spout use funnel. 3. Visully inspect to see if fuel level is low. If fuel is low, replenish with unleded fuel. When refueling, be sure to use striner for filtrtion. DO NOT top-off fuel. Wipe up ny spilled fuel. 4. Py ttention to the fuel tnk cpcity when replenishing fuel. Refer to the fuel tnk cpcity listed in Tble 5. WARNING - EXPLOSIVE FUEL Gsoline is extremely flmmble, nd its vpors cn cuse n explosion if ignited. DO NOT strt the engine ner spilled fuel or combustible fluids. DO NOT fill the fuel tnk while the engine is running or hot. DO NOT overfill tnk, since spilled fuel could ignite if it comes into contct with hot engine prts or sprks from the ignition system. Store fuel in pproved continers, in well-ventilted res nd wy from sprks nd flmes. NEVER use fuel s clening gent. DO NOT smoke while refueling, motor fuels re highly flmmble nd cn be dngerous if mishndled. C-30HDG PUMP INSPECTION Lubriction Box The model C-30HDG model fetures fully enclosed lubriction box, which utilizes the "SPLASH" method of lubriction. Before using your new pump, 7 gllons of SAE 30 motor oil must be dded directly into the lubriction box. Visully inspect the oil in the lubriction box by mking sure the oil is t the correct operting level s indicted by the dip stick (Figure 16). Also reference the oil level decl (Figure 17) djcent to the lubriction box. Mke sure the pump is on secure level surfce when checking the oil level inside the lubriction box. CAUTION - Checking Lubriction Oil Levels The oil level must be checked dily to ensure dequte oil level nd oil cleniness. Figure 16. Lubriction Box Dipstick Figure 17. Lubriction Box Oil Cution Decl MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 35

34 Checking Engine Coolnt Level 1. Remove the rditor cp, nd check the cooling wter level inside the rditor (Figure 18). 2. Mintin wter/coolnt level t top of rditor coils. Mke sure rditor overflow bottle is filled to the proper level. Figure 18. Rditor Coolnt WARNING - Burn Hzrds NEVER remove the rditor cp when the engine is HOT! Allow the engine to cool before remove the cp. 3. Check the rditor nd hoses for ny signs of lekge. 4. If cooling wter is dirty, flush the cooling system. 5. When using ntifreeze, mix the ntifreeze coolnt with wter. Observe the instructions on the ntifreeze continer. Usully 50/50 mixture is good choice. 6. When replcing the rditor cp, be sure to fit it securely bck onto the rditor. If replced loosely or incorrectly, the cooling wter will quickly evporte, cusing the engine to overhet.) V-Belt Deflection 1. Visully inspect the V-belt for crcks, frying, wer or oiliness. 2. Mke sure V-belt does not the bottom the pulley groove. 3. Check the V-belt tension (Figure 19) by pushing midwy through the two pulleys. The V-belt deflection should be between.300 to.472 inches (8 to 12 mm). C-30HDG PUMP INSPECTION/STARTUP Strting Figure 19. V-Belt Deflection CAUTION - Generl Sftey DO NOT ttempt to operte this concrete pump until the Sfety, Generl Informtion nd Inspection sections hve been red nd understood. 1. Hold the throttle control switch fully to the RIGHT to set the engine speed to IDLE (Figure 20). Figure 20. Throttle Control Switch During pumping opertions, the engine speed cnnot be reduced below 1300 RPM's. This built in feture protects the clutch from disengging (slipping) during opertion. 2. Plce the pumping control switch (Figure 21) in the OFF position. Figure 21. Pumping Control Switch (OFF) PAGE 36 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

35 C-30HDG PUMP STARTUP/SHUTDOWN PROCEDURES 3. Insert the ignition key into the ignition switch (Figure 22), turn the key to the ON position, then to the START position, relese the key when the engine strts. Figure 22. Ignition Switch 4. Let the engine run for 3-5 minutes before putting pump into opertionl use. Push the choke knob in ll the wy. 5. Listen for ny bnorml sounds. If ny mechnicl or electricl problems exists, STOP the engine nd correct the problem. 6. To begin pumping concrete. Plce the pumping control switch (Figure 23) in the ON position Figure 23. Pumping Control Switch (ON) System Shut-Down 1. Plce the pumping control switch in the OFF position (Figure 21). 2. Let the engine run t idle speed for 3-5 minutes. 3. Turn the ignition key (Figure 22) to the OFF position. 4. Clen pump s referenced in the mintennce section of this mnul. Remote Control Opertion 1. Connect the hnd-held remote control cble (Figure 24) to the control box. Figure 24. Hndheld Remote Control Cble 2. On the control box, plce the pumping control switch in the REMOTE ON position (Figure 25) Figure 25. Pumping Control Switch (Remote) 3. To begin pumping, plce the toggle switch on the hnd-held remote unit (Figure 24)in the pump ON position Rdio Remote Control Opertion The MAYCO C30HDG Concrete Pump hs remote control feture (Figure 26) tht llows the pump to be rdio controlled vi receiver/trnsmitter technique. Contct your MAYCO representtive for further informtion regrding rdio control pumping cpbility. Figure 26. Hndheld RdioReceiver/Trnsmitter MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 37

36 Preventive Mintennce It is extremely importnt to mintin this pump due to the highly brsive nture of concrete mteril. 1. Inspect ll drive components for loose or worn bolts. 2. Drive belt/chin should be checked to remove ll slck. Refer to djustment procedure. 3. ALWAYS crry extr O rings. 4. Keep entire pump clen of concrete to prevent build-up. 5. ALWAYS grese every fitting dily. Use only premium grde grese. Over gresing will not dmge pump. C-30HDG PUMP MAINTENANCE (PUMP) Generl Clen-up Procedure 1. Ensure tht there is no blockge in the hose nd line (Pumping Tips, step 8) or in the mnifold (Pumping Tips, step 7). If blockge exists, cler it to ensure proper opertion the next time it is used. At the end of every pour, or during long delys during pour, the pump nd delivery system must be thoroughly clened by removing ll concrete mteril. 2. Proper wsh out of ll mterils or build up within the pump mnifold nd hoses following the pumping opertion will prevent problems when strting the next job. After completion of the pour, pump the remining concrete in the hopper through the dischrge line. To void the possibility of seprtion during clenup, do not pump the concrete below the inlet bll in the hopper. It is best to leve pproximtely 3 to 4 inches of concrete bove the inlet bll. 3. Turn the pump engine off before filling the hopper with wter. Engine vibrtion t idle my seprte mteril in the hopper, cusing jmming in mnifold when pumping is resumed. 4. Fill hopper with wter nd resume pumping. The wter will push the concrete through the line. When the wter runs cler t the end of the hose, disconnect lines nd shke out ll the snd nd sediment so the lines will be clen for the next pour. 5. It is importnt tht the hinged dischrge cone on the pump mnifold be opened nd ll remining concrete (rock nd snd) be thoroughly wshed out. This must be done fter ech job to prevent concrete build up in the dischrge mnifolds nd 3 dischrge elbow. PAGE 38 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

37 Sponge Clen-out Procedure This section will explin the recommended procedure for using sponge to clen out the hose lines. CAUTION - Clering The Pump NEVER use muritic cid to cler the pump. Acid will dissolve the chrome finish on the pumping cylinder. NEVER use compressed ir to clen out the lines. When using clen-out hook to clen out the rer of the redimix truck, use sfety chin to secure the clen-out hook to some solid prt of the redi-mix truck to prevent the hook from jumping off the redi-mix truck s hopper. Run the pump t hlf throttle. 1. After completion of the pour, pump the remining concrete in the hopper through the dischrge line. Using shovel, clen the sides of the hopper. The pump engine should be turned OFF, s explined in Generl Clen Up Procedure. After the sides of the hopper hve been clened, dd smll mount of wter to the remining concrete in the hopper nd hnd mix. 2. Strt the pump engine nd pump the hopper ll the wy down. 3. Disconnect the hose from the pump. Fill the hopper with wter nd pump the remining concrete out of the pump. 4. Open the hinged dischrge cone nd thoroughly wsh out ll remining concrete (snd-sediment) from the cone nd pump mnifolds. Close the dischrge cone nd lock in plce. 5. Tke sponge (2 x 4 x 6 ) nd sok it with wter. Tke the hose tht is disconnected from the pump nd shke out the concrete so tht bout 2 feet of it is cler. Insert the sponge into the hose. 6. Reconnect the hose to the pump. Fill the hopper with wter nd resume pumping. Run the pump pproximtely hlf throttle. The sponge will be dischrged t the end of the line followed by cler wter. At this point, the pump nd lines will be completely clen nd redy for the next job. Repet steps 1 through 6 few times to ensure tht the hose lines re thoroughly clened. C-30HDG PUMP MAINTENANCE (PUMP) Lubriction Box The C-30HDG model fetures fully enclosed lubriction box, which utilizes the "SPLASH" method of lubriction. Visully inspect the oil in the lubriction box (Figure 16) by mking sure the oil is t the correct operting level s indicted by the dip stick. Also reference the oil level decl (Figure 17) djcent to the lubriction box. Mke sure the pump is on secure level surfce when checking the oil level inside the lubriction box. CAUTION - Checking Lubriction Oil Levels The oil level must be checked dily to ensure dequte oil level nd oil cleniness. Piston Cup Wer The rubber piston cups re nturl wer component nd will require periodic replcement. The life of the rubber cups depends on mny fctors, proper oil level, oil clenliness, brsiveness of ggregrte being pumped nd mteril slump etc. IMPORTANT! To ensure mximum cup life, the oil level in the lubriction box must be mintined t the proper level. In ddition the lubriction box must be clened periodiclly. As the rubber piston cups wer, fine cement prticles will ccumulte in the bottom of the lubriction box. Once this cement pste reches 1-inch in height, it is recommended tht the lubriction box be drined (flushed) nd clened nd the oil replced with new SAE 30 motor oil. There re two clen-out ports locted t the bottom of the lubriction box. Any questions regrding the lubriction box clen-out procedure, contct the MAYCO Service Deprtment. MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 39

38 Crnkshft nd Cm Assembly Procedure 1. Set bering block (P/N EM14303) into hydrulic press. Plce bering cup into bering block nd press in evenly. Bering cup should be ligned eqully on both sides of bering block. 2. Set crnkshft into hydrulic press with the long end towrds the top. Instll spcer (P/N EM14322), O-ring (P/N EM14326) nd bering cone (P/N EM14325) onto crnkshft. Plce bering block on crnkshft until the bering cone is riding in the bering cup. 3. Insert bering cone spcer (P/N EM14323) onto crnkshft nd inside bering block. Instll second bering cone until it is seted inside bering cup. 4. Plce O-ring nd spcer (P/N EM14302) on crnkshft. Set cm weldment on top of spcer. Instll crnkshft key nd cm key on cm bushing (P/N EM14301). 5. Slide cm bushing down crnkshft nd lign the bushing, cm nd crnkshft. Instll sleeve over crnkshft nd lign with hydrulic press. Instll cm bushing bolts loosely. Press bushing down onto bering ssembly. Leving pressure on the bushing, tighten cm bolts evenly to foot pounds. 6. Relese pressure on the bushing, repply pressure to bushing nd tighten bolts evenly to foot pounds. Repet procedure 3 to 4 times. 7. After bushing hs been fitted tightly into cm, remove from hydrulic press. Remove one bolt t time, using Loctite, instll bolts nd torque to foot pounds. Counter sink set screw hole nd instll dog point set screw nd second set screw both with Loctite TM. 8. Plce cm bering onto crnkshft keeping bering loose. Mke sure the eccentric lock is fcing towrd the outside of the pumping unit. 9. Set crnkshft ssembly into the pump box nd lign both bering ssemblies with the pump box mountings. 10. After crnkshft ssembly is securely fstened to the pump box, plce sprocket (P/N EM14307) onto the cm side of the crnkshft ssembly. Instll bushing (P/N EM14309) into sprocket. Align sprocket with sprocket on countershfts nd tighten bolts. 11. Instll chin P/N EM To djust, loosen locknuts on pusher bolts nd tighten chin to pproximtely 1/2 in. slck in the chin. Once chin is djusted properly, tighten down locknuts. C-30HDG PUMP MAINTENANCE (PUMP) Bll nd Set Replcement Procedure 1. Remove 3 x 2 reducer nd 3 elbow from the pump outlet. Remove exhust gte nd Y-mnifold (secondry mnifold). Check bll set nd bll stop pin for wer. If ny wer is detected, the prt should be replced. Remove T-mnifold (primry mnifold). Check ll prts for wer. Remove hopper nd hopper set nd inspect. 2. Loosen the piston nuts nd remove the piston cup ssembly nd cylinders. Inspect ll prts for wer nd replce prts with excessive wer. Check oiler pump for proper opertion. 3. Clen ll prts thoroughly, removing ll foreign mteril nd concrete slurry. Once prts re clen, instll concrete cylinders. Plce oiler plte O-ring in plce nd cot with oil. Instll smll O-ring on piston rod. Run oiler line through the cylinders nd connect in the oiler fitting on the oiler plte. 4. Push oiler plte into cylinder. Instll ring nd felt holder, sok felt ring in oil, then instll round felt holder in cylinder. Mke sure the bronze ring is flt, then push it up flush with the ring nd felt holder. 5. Cot piston cup with oil nd push it into the cylinder. Instll bushing into center of piston cup. Put smll O-ring on rod, plce fce plte on rod nd tighten down securely. Repet these procedure on the opposite cylinder. 6. Thoroughly check T-mnifold, bll stoppings nd both steel blls for wer. Insert n O-ring in the top flnge nd in the leding edge of the mnifold. Put the mnifold onto the primry side of the pump nd instll bolts leving them loose. 7. Check Y-mnifold for wer, instll ll O-rings, bll stop pin, bll nd set. Align nd instll Y-mnifold to T-mnifold nd cylinder ssembly. Tighten Y-mnifold bolts first before tightening T-mnifold bolts. After mnifolds re tight, check O-rings for slippge. 8. Insert set into frme hole directly bove the T-mnifold. The set orifice should fit inside the frme itself, then the set sits on top of the orifice. On the dur-set, set the big end of the set in the frme. The set, or the smll prt of the dur-set, fits into the bottom of the hopper. 9. After tightening the mnifold bolts nd inserting the sets in plce, set the hopper over the set nd lign the bolt holes. Tighten bolts, check O-ring nd set for lignment. 10. Check exhust gte for wer, instll nd lign gte onto Y-mnifold. Insert O-ring into exhust gte flnge nd close gte. Lock down lever nd djust clmp rm. 11. Instll 3 in. elbow nd 3x 2 in. reducer. Fill hopper hlf full nd check for leks. PAGE 40 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

39 Bering Instlltion 1. Instll the bering components on the crnkshft mking full contct with the bck side of the crnk disc s indicted the symbol #. See Figure 24 below. 2. Instll the bushing in the cm weldment nd slide it onto the crnkshft until contct is mde with the bering spcer. 3. Tighten the 3 llen hed bolts A while exerting pressure on the bushing towrds the bering spcer. C-30HDG PUMP MAINTENANCE (PUMP) Figure 24. Bering/Cm Bushing Instlltion It is importnt tht the Bering Assembly is instlled properly. MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 41

40 Detent Hole (3) Instlltion 1. After the bering ssembly hs been is instlled, remove the three dog type llen hed set screws (B) to llow detents to be drilled. See Figure 25 below. The detent holes will prevent the bushing from sliding wy from the bering spcer when the pump is under lod. 2. Use 9/32 drill to detent hlf (minimum 1/8 deep). Then chse the threds with 3/8-16 bottom tp nd blow out the chips fter drilling, to be certin tht the dog type llen set screws bottom in the detents to prevent the tper bushing from sliding lterlly. C-30HDG PUMP MAINTENANCE (PUMP) Figure 25. Detent Holes 3. If this procedure is not followed closely the hevy loding of the bering during pumping opertion cuses the Timken cone berings to crete lterl forces which will move the tper bushing nd llow the Timken cone berings to seprte from the rce nd subsequently fil. Position the O ring on the O.D. of the bering spcer during ssembly to ssure proper bering djustment. 4. Drill (detent) the shft under the llen set screws B to prevent the bushing from the sliding wy from the bering spcer when the pump is under lod. PAGE 42 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

41 V-Belt And Drive Chin Adjustment 1. Loosen the pillow bering bolts (Figure 26) only to the point where the bolts will remin snug. 2 Unlock the two pusher bolt lock nuts. 3. Turn ech pusher bolt clockwise n equl mount until the chin is to proper djustment of pproximtely 3/8 to 1/2 in. slck in the chin. It is very importnt tht the pulley side nd the chin side (pillow block berings) re within 1/16 of n equl distnce. 4. This distnce cn be checked by using tpe mesure or stright edge ruler, mesuring from the inside of the pusher bolt brcket to the fce of the pillow block bering. 5. The drive chin should be djusted regulrly to remove ll slck. Once ll slck is removed, DO NOT over-djust, s this will overlod the shft berings. A slck chin on the crnk drive cretes bcklsh nd shock lods on the shfts nd berings which results in shorter wer/life of the drive components. 6. Lubricte the chin regulrly. Note-it is dvisble to crry spre chin nd mster links for replcement in the field if necessry. C-30HDG PUMP MAINTENANCE (PUMP) Figure 26. V-Belt nd Drive Chin Adjustment 7. Drive belts should be regulrly djusted to prevent slippge. To djust the belts, loosen the engine mounting bolts nd move the engine until there is mximum 3/4 in. deflection in the belts, retighten the engine mounting bolts. 8. Frequent inspections should be mde on ll drive components to mke certin tht ll bolts nd nuts remin tight. Prior to djusting the chin, plce the lobe of the cm in the down position. The chin should hve 83 rivets, Including one ech, hlf-link nd full link. MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 43

42 Roller Chin Appliction A properly selected, instlled nd mintined drive chin (Figure 27) is n extremely verstile mens of power trnsmission. It is possible, however, to gretly reduce chin s life nd even induce filure if the chin is bused through improper instlltion, operting or mintennce procedures. In certin pplictions, filure cn led to personl injury or property dmge. Figure 27. Drive Chin Recommendtions nd comments on how to get the most from your roller chin drive re given in this section. The drive chin used in the MAYCO C-30HDNI pump is mnufctured by the "DIAMOND CHAIN COMPANY TM " Working Lods UTS-Ultimte Tensile Strength-is the one time pull required to brek the chin. For single strnd chin, the lod (pull) pplied to the chin in service should never exceed 1/6th of the UTS for the chin being used except s noted below. It is possible to exceed the llowble working lods for limited number of cycles, but you should contct Dimond Chin Compny before this is considered. A roller chin should never be loded bove 50% of UTS for even one cycle. To do so will dmge the chin structure nd reduce its cpcity. The UTS or one time breking lod of multiple strnd chin is the UTS of single strnd chin times the number of strnds; i.e., two strnd chin is twice s strong s single. When llowble working lods re considered, however, the cpcity of ech strnd in multiple strnd chin is only 65% of the single strnd rting; thus, three-strnd chin would rte not three times single but only 1.95 times. This is becuse the chin lod cnnot be exctly distributed cross ll three strnds of the three-strnd chin. C-30HDG PUMP MAINTENANCE (PUMP) Instlltion nd Drive Alignment Chin nd sprockets (Figure 28) must be instlled correctly. Sprockets must be properly ligned nd sprocket shfts must be prllel so the drive will run in plne perpendiculr to them. Axil lignment should be checked with stright edge which will extend cross the finished sides of the sprockets. They should be true-running with minimum wobble nd eccentricity. The higher the drive speed, the more importnt these detils become. Figure 28. Shft nd Drive Sprocket Alignment The chin should be instlled so the slck spn is properly tensioned. To check chin tension (Figure 29), turn one sprocket to tighten the upper spn of the chin while holding the other sprocket fixed. The lck spn should hve 4-6% of spn length in the mid-spn movement for horizontl drives nd 2-3% for verticl drives. Figure 29. Drive Chin Tension A roller chin s cpcity cn be significntly reduced if it is twisted or bent sidewys in the direction of the pin xis. Exercise prticulr cre in lignment of hoist or other pplictions where lods re suspended ner personnel. PAGE 44 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

43 Drive Chin Lubriction As chin rticultes in entering nd leving sprocket, there is reltive movement between pin nd bushing surfces. These surfces wer cusing chin elongtion. If lubricnt film cn be mintined between the pin nd bushing, the wer rte is very slow nd the chin wer life very long. Mintining the oil film is reltively simple t low speeds but becomes incresingly difficult s the speed increses. It is recognized tht good lubriction is not possible in mny pplictions, so shorter wer life must be ccepted in these situtions. In generl, chin wer leds to rough or unstisfctory service prior to ctul chin brekge. Good lubriction cn help to prevent chin filure by providing protection ginst rust or corrosion. Rusting cn llow pits to form in the surfces of the chin prts cusing stress concentrtion points. This cn led to chin filure t reltively low lods. C-30HDG PUMP MAINTENANCE (PUMP) The clernce between pin nd bushings is very smll (Figure 30), on the order of.003 to.005 inches. A lubricnt must be thin enough to flow into the chin. SAE 30 weight oil is bout right for room temperture. Lighter oil should be used for lower mbients nd hevier for higher operting tempertures. Grese should not be used s it cnnot penetrte chin clernces. Figure 30. Chin-Link Cross Section MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 45

44 Assembling nd Disssembling Drive Chin CAUTION - DRIVE CHAIN SAFETY You my be seriously injured if you ttempt to instll the drive chin while the pump is running. Turn OFF the engine nd lock out gers nd sprockets before ttempting instlltion. Once instlled, the drive chin must be gurded to prevent personl injury or properly dmge in the event the chin seprtes during opertion. NEVER run pump with drive chin gurd removed. CAUTION - Eyesight Hzrd The components of the drive chin re hrdened prts. Striking these prts my cuse metl chips to brek off from the chin or the tools used resulting in personl injury. During ll stges of chin disssembly nd ssembly, wer sfety glsses to prevent metl prts or chips from entering your eyes nd hve personnel in the immedite re do likewise. C-30HDG PUMP MAINTENANCE (PUMP) Chin-Link Pin Removl 1. If chin is of cotter pin- type construction, remove cotters. 2. If chin is riveted type construction, grind pin heds off so pin ends re flush with the linkplte. 3. Drive pins out of linkplte using Dimond pin extrctor Model P/N 113 or 135. Some multiple strnd chins or lrge pitch models will require hmmer nd punch or press to remove the pins. Instlltion Of Coversides Dimond Chin coversides re mnufctured three different wys: Slip Fit Modified Press Fit Full Press Fit Instlltion of Spring Locks nd Cotter-Pins After coversides hve been instlled, instll spring locks or cotters (depending on chin design). Avoid using bent or worn cotters or spring locks. After spring locks (or cotters) re instlled, lightly tp pin ends to position these prts snug ginst the coverside for dditionl support. Tips To Remember Modified nd Full Press Fits require some ptience nd tools to ssemble nd/or disssemble. Use vice grips, plumbers pliers or smll hmmer to drive coversides onto pins. Chin will brek if mused or bused Serious injury or property dmge cn result if chin is instlled incorrectly. Select, instll, gurd nd mintin chin in ccordnce with equipment mnufcturer nd "Dimond Chin Compny's recommendtions. Red chin ssembly instructions before ttempting to instll chin on pump sprocket wheel. Knowing more bout how the chin is constructed my help in ssembly nd disssembly. Further informtion my be obtined by clling or writing Dimond Chin Compny TM. PAGE 46 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

45 SYMPTON Engine will not strt or strt is delyed, lthough engine cn be turned over. At low tempertures engine will not strt. Engine fires but stops soon s strter is switched off. Engine stops by itself during norml opertion. C-30HDG PUMP ENGINE TROUBLESHOOTING Prcticlly ll brekdowns cn be prevented by proper hndling nd mintennce inspections, but in the event of brekdown, plese tke remedil ction following the dignosis bsed on the Engine Troubleshooting (Tble 6) informtion shown below nd on the proceeding pge. If the problem cnnot be remedied, plese leve the unit just s it is nd consult our compny's business office or service plnt. TABLE 6. ENGINE TROUBLESHOOTING POSSIBLE PROBLEM SOLUTION S peed control lever is in "STOP" position? Set speed control lever to "START" position. D efective fuel pump? Replce fuel pump. F uel filter clogged? Replce fuel filter nd clen tnk. F ulty fuel supply line? Replce or repir fuel line. Compression too low? Check piston, cylinder nd vlves. Adjust or repir per engine repir mnul. O il pressure too low? Check engine oil pressure. Low strting temperture limit exceeded Comply with cold strting instructions nd proper oil viscosity. D efective bttery? Chrge or replce bttery. Engine oil too thick? D efective bttery? Replce bttery. Refill engine crnkcse with correct type of oil for winter environment. T hrottle lever in STOP position? Reposition throttle lever to RUN position. F uel filter blocked? Replce fuel filter. F uel supply blocked? Check the entire fuel system. E lectricl problem t fuel solenoid? Repir using #7 wire. F uel tnk empty? Add fuel. F uel filter blocked? Replce fuel filter. D efective fuel pump? Replce fuel pump. Mechnicl oil pressure shutdown sensor stops the engine due to low oil? Add oil. Replce low oil shutdown sensor if necessry. For more detil troubleshooting methods, refer to Zenith Opertion nd Mintennce mnul supplied with your pump. PAGE 48 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

46 SYMPTON Low engine power, output nd speed. Low engine power output nd low speed, blck exhust smoke. Overheting C-30HDG PUMP ENGINE TROUBLESHOOTING TABLE 6. ENGINE TROUBLESHOOTING (CONTINUED) POSSIBLE PROBLEM F uel tnk empty? Replce fuel filter. F uel filter clogged? Replce fuel filter. SOLUTION F uel tnk venting is indequte? Ensure tht tnk is dequtely vented. Leks t pipe unions? Check threded pipe unions tpe nd tighten unions required. E ngine oil level too full? Correct engine oil level? A ir filter blocked? Clen or replce ir filter. I ncorrect vlve clernces? Adjust vlves per engine specifiction. I nsufficient coolnt? Replenish. L oose fn belt? Adjust fn belt. W orn or oiled belt? Replce belt. I nopertive thermostt? Replce thermostt. W orn wter pump? Replce wter pump. C logged or leky rditor? Flush, repir or replce rditor. F ulty rditor filler cp? Replce rditor cp. A ir in cooling system? Retighten ech prt of cooling system. I ncorrect engine timing? Adjust timing. I mproper governor djustment? Adjust governor to the specified conditions. For more detil troubleshooting methods, refer to Zenith Opertion nd Mintennce mnul supplied with your pump. MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 49

47 C-30HDG PUMP ENGINE FAULT CODES Mlfunction Indictor Dignostic System The Myco C-30HDG concrete pump fetures n engine mlfunction indictor lmp found on the control box (Figure 32). When mlfunction in the opertion of the engine is detected, the ornge check engine light will illuminte. There re 2 methods of determining n engine mlfunction. The 6. Connect jumper wire between the brown/white wire (pin first method is to connect computer to the test port connector, A) on the com. port A connector nd chssis ground. See the second method is to connect ground wire to the Figure 34. Communiction Port A connector using the check engine indictor lmp on the control box to determine the error code. The indictor lmp will flsh in sequence to indicte n error code. Use the Dignostic Error Code Tble (Tble 7) to troubleshoot the mlfunction. The second method will be discussed in this mnul. The following steps use the MAP sensor s n exmple so tht the user my become fmilir with the troubleshooting process. Exmple: 1. Open hood nd disconnect MAP sensor connector. See Figure 34. Com. Port A Connector/Jumper Figure Close hood nd plce ignition key in the ON position Figure 31. MAP Sensor Connector 2. Close hood nd strt engine. Let engine run for 3 to 5 minutes. 3. Verify tht check engine wrning lmp on the control box is on (lit). See Figure 32. CHECK ENGINE WARNING LAMP PUMPING CONTROL T H R O T HIGH LOW T L E CHECK ENGINE ENGINE HOURS HOOD OPEN PUMPING CONTROL REMOTE ON OFF PUMP ON IGNITION SWITCH OFF ON START EMERGENCY IGNITION SWITCH Figure 32. Engine Wrning Lmp 4. If the check engine wrning lmp is on, stop engine. Plce ignition key in the OFF position. See Figure 33. Figure 33. Ignition Key (Off) 5. Locte communiction port A test connector s shown in Figure 34. Remove plstic cover so tht the mle connector pins re exposed. OFF STOP ON START REMOTE OUTLET IGNITION SWITCH PAGE 50 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) OFF ON START Figure 35. Ignition Key (On) 8. Observe check engine wrning lmp flshing 3 consecutive times nd repeting 3 times. This sequence is defined s the leder code. Figure 36. Leder Code 9. The check engine wrning lmp will flsh in 3 seprte bursts s shown below. This sequence of lmp flshing represents the MIL flsh error code. See Tble 7 for complete listing of error codes. In the MAP sensor exmple, the error code is 127. Figure 37. MIL Flsh Error Code 10. To correct MAP sensor error, remove jumper wire, reconnect MAP sensor connector (See Figure 31) nd restrt engine. It my be necessry to restrt nd stop the engine few times in order to cler the error from the check engine wrning lmp. Allow engine to run 3 to 5 minutes.

48 C-30HDG PUMP ENGINE FAULT CODES TABLE 7. GCP ECU FAULT CODE LIST FOR ZZP 416 ENGINE # Fult Description Turns on MIL? MIL Flsh Code Leder/Triler Code CRANK or CAM could not synchronize during strt 2 Fuel Pressure low voltge 3 Fuel Pressure high voltge 4 MAP Signl open or shorted to ground 5 MAP signl shorted high 6 IAT signl Low/Shorted to GND 7 IAT signl High/Open 8 ECT higher thn wrning threshold 9 ECT Sensor Low/Shorted Input 10 ECT Sensor High/Open Input 11 TPS1 voltge lower thn TPS2 voltge 12 Throttle Position Signl 1 low voltge 13 Throttle Position Signl 1 high voltge 14 Pre-Ct O2 Signl No Activity 15 Post-Ct O2 Signl No Activity 16 Gsoline bnk 1 A/F is len (dptive lern) 17 Gsoline bnk 1 A/F is rich (dptive lern) 18 Gsoline Fuel Temp Low Voltge 19 Gsoline Fuel Temp High Voltge 20 LPG Fuel Temp Low Voltge 21 LPG Fuel Temp High Voltge 22 ECT higher thn engine shutdown threshold 23 Engine Overspeed Condition 24 TPS1 voltge higher thn TPS2 voltge 25 Throttle Position Signl 2 low voltge 26 Throttle Position Signl 2 high voltge 27 Injector 1 Low/Open 28 Injector 1 High/Short 29 Injector 2 Low/Open 30 Injector 2 High/Short 31 Injector 3 Low/Open 32 Injector 3 High/Short 33 Injector 4 Low/Open 34 Injector 4 High/Short 35 Knock signl excessive or errtic 36 Knock signl open or not present 37 CRANK signl noise 38 No CRANK signl 39 CAM signl noise 40 No CAM signl s 216 s 291 s 292 s 127 s 128 s 112 s 113 s 116 s 117 s 118 s 121 s 122 s 123 s 134 s 154 s 171 s 172 s 182 s 183 s 187 s 188 s 217 s 219 s 221 s 222 s 223 s 261 s 262 s 264 s 265 s 267 s 268 s 269 s 271 s 326 s 327 s 336 s 337 s 341 s 342 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 51

49 TABLE 7. GCP ECU FAULT CODE LIST FOR ZZP 416 ENGINE # Fult Description 41 Fuel (LPG or NG) run-out longer thn expected 42 Ctlyst inctive on gsoline 43 Engine Oil Pressure Too Low 44 Bttery Voltge Low 45 Bttery Voltge High 46 Microprocessor filure - FLASH 47 Microprocessor filure - RAM 48 Microprocessor filure - COP 49 Strter rely coil open 50 Strter rely control short to GND 51 Strter rely coil short to 12V C-30HDG PUMP ENGINE FAULT CODES Turns on MIL? (CONT.) MIL Flsh Code s 359 s 421 s 524 s 562 s 563 s 621 s 624 s 626 s 615 s 616 s V Reference #1 voltge low s V reference #1 voltge high s Mlfunction Indictor Lmp open s V Reference #2 voltge low s V Reference #2 voltge high s Power rely coil open 58 Power rely short to GND 59 Power rely short to 12V 60 Closed-loop LPG A/F is too len 61 Closed-loop LPG A/F is too rich 62 Closed-loop NG A/F is too len 63 Closed-loop NG A/F is too rich 64 Closed-loop gsoline bnk 1 A/F is too len 65 Closed-loop gsoline bnk 1 A/F is too rich 66 LPG Adptive-lern A/F is too len 67 LPG Adptive-lern A/F is too rich 68 NG Adptive-lern A/F is too len 69 NG Adptive-lern A/F is too rich 70 Ctlyst inctive on LPG 71 EPR delivery pressure higher thn expected 72 EPR delivery pressure lower thn expected 73 EPR-ECU communictions lost 74 EPR voltge supply high 75 EPR voltge supply low 76 EPR internl ctutor fult detected 77 EPR internl circuitry fult detected 78 EPR internl communictions fult detected 79 AUX 5V ANALOG INPUT 4 open or high 80 AUX 5V ANALOG INPUT 4 low 81 AUX 5V ANALOG INPUT 3 open or high s 685 s 686 s 687 s 151 s 152 s 153 s 159 s 155 s 156 s 161 s 162 s 163 s 164 s 165 s 371 s 372 s 173 s 174 s 175 s 176 s 177 s 178 No 515 No 516 s 517 PAGE 52 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

50 C-30HDG PUMP ENGINE FAULT CODES TABLE 7. GCP ECU FAULT CODE LIST FOR ZZP 416 ENGINE (CONT.) # Fult Description Turns on MIL? MIL Flsh Code 82 AUX 5V ANALOG INPUT 3 low s AUX 5V ANALOG INPUT 1 high s AUX 5V ANALOG INPUT 1 low or open s AUX 5V ANALOG INPUT 2 high or open s AUX 5V ANALOG INPUT 2 low s AUX DIGITAL INPUT 1 high s AUX DIGITAL INPUT 1 low s Hood Switch s AUX DIGITAL INPUT 2 low s AUX DIGITAL INPUT 3 high s AUX DIGITAL INPUT 3 low s AUX 5V ANALOG INPUT 5 open or high s AUX 5V ANALOG INPUT 5 low s Wtchdog processor blocked outputs (RTI 1) s Microprocessor filure - RTI 2 s Microprocessor filure - RTI 3 s Microprocessor filure - A/D s Microprocessor filure - Interrupt s Pin 85 (AUX_PWM4) open/short to GND s Pin 85 (AUX_PWM4) short to 12V s MIL control short to GND No MIL control short to 12V No Unble to rech Lower TPS s Unble to rech higher TPS s APP1 higher thn IVS s APS/IVS Conflict s APP1 signl low voltge s APP1 signl high voltge s IVS stuck t idle, APP 1/2 mismtch s IVS stuck t off-idle, APP 1/2 mismtch s APP1 lower thn IVS Limit s Ignition coil A low current s Ignition coil A high current s Ignition coil B low current s Ignition coil B high current s Ignition coil C low current s Ignition coil C high current s Ignition coil D low current s Ignition coil D high current s 442 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 53

51 C-30HDG PUMP WIRING DIAGRAM (ZENITH WIRING HARNESS) Figure 38. Zenith Fuel Injection System Wiring Digrm PAGE 54 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

52 C-30HDNI PUMP WIRING DIAGRAM (ZENITH WIRING HARNESS) Figure 38. Zenith Fuel Injection System Wiring Digrm (Cont.) MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 55

53 C-30HDG PUMP WIRING DIAGRAM Figure 39. Wiring Digrm PAGE 56 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

54 IGN. (12 VDC HOT IN RUN & CRANKING) ALTERNATOR CHARGING TROUBLE INDICATOR LAMP GASOLINE FUEL PUMP GROUND GASOLINE FUEL PUMP +12VDC STARTER REQUEST +12VDC INPUT (AUDIO CRANKING) STARTER REQUEST +12VDC INPUT (INTERRUPT TYPE) MALFUNCTION INDICATOR LAMP GROUND FUEL SELECT/AUX DIG INPUT #1 ENGINE WARNING/SHUTDOWN LAMP GROUND AUX PWM OUTPUT 5 12V CLAMPING DIODE CONNECTION FOR AUX PWM 5 TACH DRIVER POWER GROUND AUX PWM OUTPUT 2 AUX 5V ANALOG INPUT 1 (CONFIGURABLE PULL-UP/DOWN) AUX 5V ANALOG INPUT 3 (PULL-UP) ZPP 416, 420 & 640 CUSTOMER 16-PIN CONNECTIONS Rev: 2 Dte 02/17/2007 A B C D E F G H A B C D E F G H C-30HDG PUMP PIN CONNECTIONS Connector #1 Femle ACCELERATOR PEDAL POSITION B (FPP2) ACCELORATOR PEDAL POSITION A (FPP1) SIGNAL GROUND 1 +5V EXT 1 CAN BUS + CAN BUS SIGNAL GROUND 2 +5V EXT 2 SPEED SELECT 2 (GOV2) INPUT SPEED SELECT 1 (GOV1) INPUT AUX DIGITAL INPUT 2 AUX DIGITAL INPUT 3 AUX PWM OUTPUT 4 AUX 5V ANALOG INPUT 2 (CONFIGURABLE PULL UP/DOWN) AUX 5V ANALOG INPUT 4 (PULL DOWN) AUX 5V ANALOG INPUT 5 (PULL DOWN) MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 57 J K L M N P R Connector #2 Mle S J K L M N P R S

55 C-30HDG PUMP WIRING DIAGRAM (TAIL LIGHTS) Figure 40. Triler Til Lights Wiring Digrm PAGE 58 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

56 1. To obtin representtive smple (concrete), tke severl smples t three or more regulr intervls throughout the dischrge of the mixer or truck. DO NOT tke smples t the beginning or end of the dischrge. 2. Dmpen the inside of the cone nd plce it on smooth, moist, nonbsorbent, level surfce lrge enough to ccommodte both the slumped concrete nd the slump cone. Stnd on the foot pieces throughout the test procedure to hold the cone firmly in plce. 3. Fill the cone 1/3 full by volume (Figure 38-A) nd rod 25 times with 1/2 di x 24 lg. bullet-pointed steel rod. (This is specific requirement which will produce non-stndrd results unless followed exctly.) Distribute rodding evenly over the entire cross section of the smple. 4. Fill cone nother 1/3 (Figure 38-B) which will mke the cone 2/3 full by volume. Rod this second lyer 25 times with the rod penetrting into, but not through, the first lyer. Distribute rodding evenly over the entire cross section of the lyer. 5. Fill cone to overflowing (Figure 38-C). Rod this lyer 25 times with rod penetrting into but not through, the second lyer. Distribute rodding evenly over the entire cross section of this lyer. 6. Remove the excess concrete (Figure 38-D) from the top of the cone, using the tmping rod s screed. 7. Lift the cone verticlly (Figure 38-E) with slow even motion. DO NOT jr the concrete or tilt the cone during this process. ( Invert the withdrwn cone, nd plce it next to, but not touching the slumped concrete. 8. Ly stright edge (Figure 38-F) cross the top of the slumped cone. Mesure the mount of slump in inches from the bottom of the stright edge to the top of the slumped concrete t point over the originl center of the bse. The slump opertion must be complete in mximum elpsed time of 1-1/2 minutes. Discrd the concrete. DO NOT use it in ny other tests. BULLET POINTED STEEL ROD 1/2 DIAMETER 24 INCHES LONG APPENDIX C-30HDNI C-30HDNI SLUMP TEST PROCEDURE 1/3 FULL FOOT PIECE Figure 41-A. Slump Test (1/3 Full) 2/3 FULL Figure 41-C. Slump Test (Full-Overflow) Figure 41-E. Slump Test (Cone Invert) Figure 41-B. Slump Test (2/3 Full) Figure 41-D. Slump Test (Removing Excess Concrete) Figure 41-F. Slump Test (Mesurement) PAGE 60 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) FULL (OVERFLOW)

57 APPENDIX C-30HDG CONCRETE MIX INFORMATION The following informtion hs been extrcted from ctul testing lbortory reports. The purpose of this printing is only to help crete better understnding of the importnce of uniform grdtion nd proportioning of mterils which ffect pumpbility of concrete mixes. These weights nd proportions illustrte tht when the sieve nlysis is idel, the snd/rock rtio cn be djusted (65% snd 35% rock) nd pumpbility should be excellent. EXAMPLE #1 (A Cliforni Test Lb. Report) JOB: Building Foundtions (Wter Project) Scks per cu./yd. 6.5 designed for 2,500 lbs. in 28 dys Gllons per sck 7.1 Wshed Snd-#200 wsh 1.3 Orgnic mtter-ok Specific grvity (SSD) Snd-2.58; Pe Grvel-2.60 Sieve nlysis-percent pssing Mteril /4 3/8 #4 #8 #16 #30 #50 #100 #200 W.C. Snd Pe Grvel % Comb DESIGN FOR ONE YARD OF CONCRETE (SATURATED & SURFACE DRY): Absolute volume of ggregte in one cu. yrd: cu. ft. Specific grvity of ggregtes in one cu. yrd: 2.58 Weight of ggregtes in one cu. yrd btch: 2850 lbs. % BATCH SPEC. GRAVITY ABS. VOL. W.C. Snd PEA GRAVEL WATER 46 gl. 1 CEMENT 6.5 sk. 611 TOTAL ADMIXTURE: None SLUMP 4 REMARKS This mix designed for pumping NOTE: Due to the vilbility of well-grded snd s shown in the bove sieve nlysis, this mix pumped very successfully. MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 61

58 APPENDIX C-30HDG CONCRETE MIX INFORMATION A.S.T.M. STANDARD SPECIFICATION FOR GRADING AGGREGATE PAGE 62 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

59 Consolidted Rock Products Co., Division of Tests 3/8 Pe Grvel STANDARD PUMP MIXES (one-hlf inch minus) APPENDIX C-30HDG CONCRETE MIX INFORMATION NOTE: All weights shown re one cubic yrd with S.S.D. ggregtes. CRP Mix Number Design Slump (in.) 6 (15 cm)... 6 (15 cm)...6 (15 cm)... 6 (15 cm) Cement, SACK Cement, Lbs. 658 (298 kg) (298 kg) (298 kg) (298 kg) w/con Snd (1 lb.) 2031 (920 kg) (943 kg) (851 kg) (880 kg) Grvel #4(9.51 mm) 677 (307 kg) (314 kg) (365 kg) (377 kg) TOTAL AGGREGATE 2708 (1227 kg) (1257 kg) (1216 kg) (1257 kg) ADMIXTURE Pozzolight lb. 1.4 (.63 kg) (.63 kg) (.63 kg)... Wter, Design (gls.) 50.0 (189 liters) (200 liters) (189 liters) (200 liters) Mter, Mx. (gls.) 50.0 (189 liters) (200 liters) (200 liters) (200 liters) NOTE: Multiply bove kilogrms nd liters by to obtin the proportions for one cubic meter of concrete. Consolidted Rock Products Co., Division of Tests 3/8 Pe Grvel STANDARD PUMP MIXES (one-hlf inch minus) NOTE: All weights shown re one cubic yrd with S.S.D. ggregtes. CRP Mix Number Design Slump (in.) 6 (15 cm)... 6 (15 cm)...6 (15 cm)... 6 (15 cm) Cement, SACK Cement. Lbs. 611 (276 kg) (276 kg) (276 kg) (276 kg) w/con Snd (1.1 lb.) 2062 (934 kg) (957 kg) (872 kg) (893 kg) Grvel #4 (9.51mm) 687 (311 kg) (319 kg) (374 kg) (383 kg) TOTAL AGGREGATE 2749 (1245 kg) (1276 kg) (1245 kg) (1276 kg) ADMIXTURE Pozzolight lb. 1.3 (.59 kg) (.59)... Wter, Design (gls.) 50.0 (189 liters) (200 liters) (189 liters) (200 liters) Mter, Mx. (gls.) 50.0 (189 liters) (200 liters) (200 liters) (200 liters) NOTE: Multiply bove kilogrms nd liters by to obtin the proportions for one cubic meter of concrete. MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 63

60 RECOMMENDED SHOTCRETE SYSTEM /2 STANDARD AIR HOSE 10 APPENDIX RECOMMENDED SHOTCRETE SYSTEM 3 7 AIR COMPRESSOR (125 TO 250 CFM) MAYC0 8 C-30HDN MAYCO Figure 42. Shotcrete System PAGE 64 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) /4 STANDARD AIR HOSE

61 RECOMMENDED SHOTCRETE SYSTEM Generl recommendtions If the site will permit, use steel pipe from the pump to the pool perimeter. It will reduce line pressures which is highly recommended. The vibrtor on the reducer by the pool improves pumpbility. Turn both ir vibrtors off whenever the pump is stopped to prevent seprtion of mix. The ir vibrtors re low consumption (4.2 scfm). Leve the ir on t the nozzle when the pump is stopped to prevent clogging of ir the hoses in the ir insert. Use item #11 (steel elbow) t the edge of the pool to prevent collpse of the rubber hose, which cn cuse blockge. APPENDIX RECOMMENDED SHOTCRETE SYSTEM NO. PART NO. PART NAME QTY. REMARKS 1 EM " B COUPLING 2 EM "-90 ELBOW 3 EM /2" S/J COUPLING 4 EM28005DD... 3"X 2 1/2 REDUCER 5 EM /2"X 10FT. PIPE 6 EM /2"X 50FT. HOSE 7 EM28001DD /2"X 2" REDUCER 8 EM23815D /2"X 2" REDUCER W/AIR VIBRATOR 9 EM " S/J COUPLING 10 EM AIR VIBRATOR 11 EM "X 2 ELBOW 12 EM "X 25 FT. HOSE 13 EM23808D... NOZZLE ASSEMBLY 14 EM /8" NOZZLE TIP 15 EM /4" NOZZLE TIP MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 65

62 APPENDIX RECOMMENDED SHOTCRETE ACCESSORIES RECOMMENDED SHOTCRETE ACCESSORIES Figure 43. Shotcrete System Accessories Use 1-3/8" rubber nozzle tip for wide spry pttern. Use 1-1/4" rubber nozzle tip for nrrow spry pttern. DO NOT INSTALL THE NOZZLE AT THE END OF THE HOSE UNTIL THE FIRST MATERIAL HAS PASSED THROUGH THE ENTIRE HOSE LENGTH. Disssemble nd clen the nozzle ssembly thoroughly fter ech job. Grese ll threds before re-ssembly. DO NOT close the ir vlve when pumping is stopped s continued ir flow keeps the ir pssges clen. PAGE 66 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

63 APPENDIX RECOMMENDED SHOTCRETE ACCESSORIES RECOMMENDED SHOTCRETE ACCESSORIES NO. PART NO. PART NAME QTY. REMARKS 1 EM26107 HOPPER SCREEN 1 2 EM AIR VIBRATOR 1 3 EM132 BOLT, 1/2-13X2 2 4 EM23407 AIR HOSE 1 5 EM23408 BUSHING 1 6 EM23411 VALVE 1 7 EM NIPPLE 2 8 EM23409 COUPLING 1 9 EM WASHER, 1/2 LOCK 2 10 EM406 NUT, HEX 1/ EM "X25' RAISED HOSE EM "X50' RAISED HOSE 12 EM23802 ADAPTER 1 13 EM23803 GUN BODY 1 14 EM20816 O RING 1 15 EM23804 AIR INSERT 1 16 EM23805 NOZZLE CLAMP 1 17 EM23806 NOZZLE TIP, 1-3/8" 1 18 EM23807 NOZZLE TIP, 1-1/4" 1 19 EM STREET ELBOW 1 * 20 AIR HOSE... NOT SUPPLIED BY MAYCO 21 EM23808D NOZZLE ASSEMBLY HD INCLUDES. ITEMS W/ * MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 67

64 The following section explins the different symbols nd remrks used in the Prts section of this mnul. Use the help numbers found on the bck pge of the mnul if there re ny questions. NOTICE The contents nd prt numbers listed in the prts section re subject to chnge without notice. Multiquip does not gurntee the vilbility of the prts listed. SAMPLE PARTS LIST NO. PART NO. PART NAME QTY. REMARKS BOLT INCLUDES ITEMS W/% 2% WASHER, 1/4 IN....NOT SOLD SEPARATELY 2% WASHER, 3/8 IN MQ-45T ONLY HOSE...A/R...MAKE LOCALLY BEARING S/N 2345B AND ABOVE NO. Column Unique Symbols All items with sme unique symbol (@, #, +, %, or >) in the number column belong to the sme ssembly or kit, which is indicted by note in the Remrks column. Duplicte Item Numbers Duplicte numbers indicte multiple prt numbers, which re in effect for the sme generl item, such s different size sw blde gurds in use or prt tht hs been updted on newer versions of the sme mchine. NOTICE When ordering prt tht hs more thn one item number listed, check the remrks column for help in determining the proper prt to order. PART NO. Column Numbers Used Prt numbers cn be indicted by number, blnk entry, or TBD. TBD (To Be Determined) is generlly used to show prt tht hs not been ssigned forml prt number t the time of publiction. A blnk entry generlly indictes tht the item is not sold seprtely or is not sold by Multiquip. Other entries will be clrified in the Remrks Column. EXPLANATION OF CODE IN REMARKS COLUMN QTY. Column Numbers Used Item quntity cn be indicted by number, blnk entry, or A/R. A/R (As Required) is generlly used for hoses or other prts tht re sold in bulk nd cut to length. A blnk entry generlly indictes tht the item is not sold seprtely. Other entries will be clrified in the Remrks Column. REMARKS Column Some of the most common notes found in the Remrks Column re listed below. Other dditionl notes needed to describe the item cn lso be shown. Assembly/Kit All items on the prts list with the sme unique symbol will be included when this item is purchsed. Indicted by: INCLUDES ITEMS W/(unique symbol) Seril Number Brek Used to list n effective seril number rnge where prticulr prt is used. Indicted by: S/N XXXXX AND BELOW S/N XXXX AND ABOVE S/N XXXX TO S/N XXX Specific Model Number Use Indictes tht the prt is used only with the specific model number or model number vrint listed. It cn lso be used to show prt is NOT used on specific model or model number vrint. Indicted by: XXXXX ONLY NOT USED ON XXXX Mke/Obtin Loclly Indictes tht the prt cn be purchsed t ny hrdwre shop or mde out of vilble items. Exmples include bttery cbles, shims, nd certin wshers nd nuts. Not Sold Seprtely Indictes tht n item cnnot be purchsed s seprte item nd is either prt of n ssembly/kit tht cn be purchsed, or is not vilble for sle through Multiquip. PAGE 68 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

65 C-30HDG CONCRETE PUMP W/ ZENITH FUEL INJECTION SYSTEM 1 Units QTY. P/N DESCRIPTION 6... EM PISTON CUP KITS 4... EM /2" STEEL BALL 4... EM " STEEL BALL 6... EM BALL STOP PIN KIT EM RING MANIFOLD 1... EM CHAIN 2... EM HALF LINK 2... EM MASTER LINK 1... EM COMPENSATOR SPRING 2... EM BRONZE RING 2... EM CAM BEARING (TIMKEN) 2... EM CAM BEARING (MCGILL) 2... EM V-BELT 2... EM LOWER SEAT 2... EM UPPER SEAT EM O-RING 2... EM FUEL FILTER 2... EM20328TKIT... BEARING KIT 1... EM28004DD... REDUCER 3" X 2" X 36" 1... EM " ELBOW 2... EM " CLAMP 4... EM " GASKETS 1... EM HOPPER SCREEN 1... EM CLUTCH M SPARK PLUG EM98057A... "SLICK PACK"... HOSE PRIMING AGENT Prt number on this Suggested Spre Prts List my super cede/replce the P/N shown in the text pges of this book. C-30HDG PUMP SUGGESTED SPARE PARTS C-30HDG CONCRETE PUMP W/ ZENITH FUEL INJECTION SYSTEM 3 Units QTY. P/N DESCRIPTION EM PISTON CUP KITS EM /2" STEEL EM " STEEL BALL EM BALL STOP PIN KITS EM MANIFOLD O-RINGS 3... EM CHAINS EM HALF LINK EM MASTER LINK 2... EM COMPENSATOR SPRING 4... EM BRONZE RING 2... EM CAM BEARING (TIMKEN) 2... EM CAM BEARING (MCGILL) 6... EM V-BELT 6... EM LOWER SEAT 6... EM UPPER SEAT 3... EM CLUTCH LINING EM O-RING 6... EM FUEL FILTER 2... EM20328TKIT... BEARING KIT 2... EM28004DD... REDUCER 3" x 2" X 36" 2... EM " ELBOW 4... EM " CLAMP EM " GASKET 2... EM HOPPER SCREEN 1... EM CAM 1... EM T-MANIFOLD 1... EM Y-MANIFOLD 2... EM PISTON ROD 1... EM REMOTE SWITCH 1... EM CONN. ROD BEARING 1... EM CRANKSHAFT 2... EM PUMP CYLINDER 2... EM COMPENSATOR CYLINDER 1... EM CLUTCH EM98057A... "SLICK PACK"... HOSE PRIMING AGENT MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 69

66 C-30HDG PUMP NAMEPLATE AND DECALS PAGE 70 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

67 NAME PLATE AND DECALS C-30HDG PUMP NAMEPLATE AND DECALS NO PART NO PART NAME QTY. REMARKS 1 DCL152 DECAL, CAUTION OIL LEVEL 1 * 2 EM932 DECAL, CAUTION, MANIFOLD 1 3 EM1028 DECAL, MULTIQUIP MAYCO DECAL, CAUTION READ MANUAL 2 5 EM DECAL, C-30HDG 2 6 EM DECAL, MAINTENANCE 1 * 7 DECAL, NAME PLATE CONTACT MQ PARTS DEPT. W/... MODEL AND SERIAL NUMBER DECAL, WARNING 1 * 9 * DECAL, OWNER'S MANUAL 1 10 EM KIT, DECAL INCLUDES ITEMS W/ * MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 71

68 COMPENSATOR PISTON ROD ASSY. C-30HDG PUMP COMPENSATOR PISTON ROD ASSY. PAGE 72 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

69 COMPENSATOR PISTON ROD ASSY. C-30HDG PUMP COMPENSATOR PISTON ROD ASSY. NO. PART NO. PART NAME QTY. REMARKS 1 EM14805 ROD END INCLUDES ITEMS W/+ 1A+ EM BUSHING 1 2 EM NUT HEX, 3/4-10 GR5 2 3 EM14332 ROD SPRING GUIDE 3/4 1 4 EM14331 SPRING BACKING PLATE 1 5 EM14333 SPRING RETURN 1 6 EM14806 PISTON GUIDE ASSY. 1 7 EM FITTING 1 8 EM BEARING CUP 1 9 EM20814 BEARING BUSHING 1 * 10 EM20813 SPACER 1 11 EM BEARING CONE 2 12 EM20816 O-RING 2 * 13 EM FITTING 2 14 EM SCREW, HHC 1/2-13X EM621 WASHER NUT LOCK 1/2 DIA EM14335 PISTON ROD 1 18 EM14336 PISTON GUIDE 1 19 EM FITTING 1 20 EM14334 COMPENSATOR SPRING 1 21 EM18409 O-RING 1 22 EM98032 PLATE, OILER 1 23 EM14407 O-RING, OILER PLATE 1 24 EM14410 RING & FELT HOLDER 1 25 EM14408 BRONZE RING 1 26 EM14411 PISTON CUP-BLACK 1 26 EM98051 PISTON CUP-ORANGE 1 27 EM14412 BUSHING 1 1/4 CRS 1 28 EM18409 O-RING EM14413 FACE PLATE 1 30 EM18800HD PUMPING CYLINDER /2" LIP SLEEVE 31 EM26525 O-RING, CYLINDER BOX 1 32 EM NUT HEX, 3/ EM16493 FELT RING 1 34 EM BUSHING 1 35 EM20328TKIT BEARING KIT INCLUDES ITEMS W/ * MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 73

70 CONNECTING ROD - DRIVE SIDE ASSY. C-30HDG PUMP CONNECTING ROD - DRIVE SIDE ASSY. PAGE 74 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

71 CONNECTING ROD - DRIVE SIDE ASSY. C-30HDG PUMP CONNECTING ROD - DRIVE SIDE ASSY. NO. PART NO. PART NAME QTY. REMARKS 7 EM FITTING 1 8 EM BEARING CUP 1 9 EM20814 BEARING BUSHING 1 * 10 EM20813 SPACER 1 11 EM BEARING CONE 2 12 EM20816 O-RING 2 * 21 EM18409 O-RING 1 22 EM98032 PLATE, OILER 1 23 EM14407 O-RING, OILER PLATE 1 24 EM14408 BRONZE RING 1 25 EM14410 RING AND FELT HOLDER 1 26 EM14411 PISTON CUP-BLACK 1 26 EM98051 PISTON CUP-ORANGE 1 27 EM14412 BUSHING 1 1/4 CRS 1 28 EM18409 O-RING EM14413 FACE PLATE 1 30 EM14807HD CONCRETE CYLINDER /4 IN. LIP SLEEVE 32 EM NUT HEX, 3/ EM14808 PISTON ROD ASSY EM16493 FELT RING 1 35 EM20328TKIT BEARING KIT INCLUDES ITEMS W/ * MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 75

72 ROCKER ASSY. NOTES: A. LONG STROKE SETTING. 1 HIGHER VOLUME, LOWER PSI. B. STANDARD SETTING, NORMAL. C. SHORT STROKE SETTING. REDUCED VOLUME, HIGHER PSI LUBRICATION POINT 43 SEE CRANKSHAFT ASSEMBLY LUBRICATION POINT 40 PART OF FRAME LUBRICATION POINT C-30HDG PUMP ROCKER ASSY. PAGE 76 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) C B A LUBRICATION POINT 14 7 LUBRICATION POINT KIT

73 ROCKER ASSY. C-30HDG PUMP ROCKER ASSY. NO. PART NO. PART NAME QTY. REMARKS 1 EM14329 SHAFT ROCKER ARM 1 2 EM14116 JOURNAL BLOCK 1 3 EM SCREW, HHC 3/4-10X5 2 4 EM WASHER LOCK 3/4 SPRING STEEL 2 5 EM14846 CAM ROCKER ARM INCLUDES ITEMS W/+ 6 EM133 BOLT 1-14X2 HEX HEAD 1 7 EM603 WASHER 1 LOCK 1 8 EM ZERK FITTING 1 9 EM CAM BEARING (TIMKEN) BEFORE JANUARY EM98296 CAM BEARING (MCGILL) AFTER DECEMBER EM20347 CAM BEARING SPACER BEFORE JANUARY EM98298 CAM BEARING SPACER AFTER DECEMBER EM CAM BEARING BUSHING BEFORE JANUARY EM98297 CAM BEARING BUSHING AFTER DECEMBER EM20344 SPECIAL BOLT 1 13 EM ZERK FITTING 1 14 EM417 NUT FLEX LOCK 1 15 EM OILER FELT 2 16 EM607 WASHER, FLAT 5/ EM20349 OILER PLUG, PLASTIC 1 19 EM NUT STOP REG. 3/ % EM BEARING CUP 1 21% EM20814 BEARING BUSHING 1 22% EM20813 SPACER 1 23% EM BEARING CONE 2 24% EM20816 O-RING 2 25 EM105 BOLT 1-14X6 HEX HEAD 1 27#+ EM BRONZE BUSHING 4 28 EM20364 CONNECTING ROD 1 30 EM702 SCREW ALLEN HEAD 3/8-16X3/ EM ZERK FITTING 1 35 EM14328 ROCKER ARM ASSY INCLUDES ITEM W/# 36 EM SEAL PLATE 1 37 EM20336 O-RING 1 38 EM BEARING 1 40 EM20338 SPACER 1 41 EM WASHER LOCK 5/ EM BOLT 1/2-13X EM98043 FORGED CRANKSHAFT 1 44 EM417 NUT, LOCK 3/4" EM202 BOLT, HEX 1-8 X 6 LG EM20328TKIT BEARING KIT INCLUDES ITEMS W/% 47 EM104 HHCS 5/8-11 X 2" G5 1 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 77

74 COUNTERSHAFT ASSY. NOTES: SEE CLUTCH ASSEMBLY 4 SEE CRANKSHAFT ASSEMBLY C-30HDG PUMP COUNTER-SHAFT ASSY. 7 6 LUBRICATION POINT 6 PAGE 78 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) 1 6 PART OF FRAME LUBRICATION POINT MASTER LINK PART OF FRAME HALF LINK

75 COUNTER-SHAFT ASSY. C-30HDG PUMP COUNTER-SHAFT ASSY. NO. PART NO. PART NAME QTY. REMARKS 1 EM COUNTER SHAFT 1 2 EM14311 CAM BEARING 2 3 EM124 BOLT HEX 1/2 X 1-3/4 2 4 EM1621 WASHER EM WASHER, LOCK1/2 2 6 EM NUT HEX, 1/ EM FITTING 1 8 EM14316 KEY WAY 3/8 X EM14314 BUSHING, PULLEY 1 10 EM14313 PULLEY 1 11 EM14315 BELT, DOUBLE 1 12 EM SET COLLAR 1 21 EM14318 SPROCKET, 13 TOOTH 1 22 EM14319 BUSHING 1 55 EM14307 SPROCKET 60 TEETH 1 57 EM1702 SCREW ALLEN HEAD 3/8-16X3/ EM703 SET SCREW 3/8-16X3/ EM14308 CHAIN W/MASTER LINK 1 60 EM26314 LINK MASTER 1 61 EM26313 HALF LINK 1 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 79

76 CRANKSHAFT ASSY C-30HDG PUMP CRANKSHAFT ASSY PAGE 80 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) 30 LUBRICATION POINT NOTES: LUBRICATION POINT SEE ROCKER ARM ASSEMBLY 1 ITEM 43 FOR ASSOCIATED CRANKSHAFT COMPONENTS KIT SEE COUNTER-SHAFT ASSEMBLY, ITEM 55

77 CRANKSHAFT ASSY. C-30HDG PUMP CRANKSHAFT ASSY. NO. PART NO. PART NAME QTY. REMARKS 23 EM14303 BEARING BLOCK 1 24 EM702 SCREW, ALLEN HEAD 3/8-16X3/4 6 * 25 EM ZERK FITTING 1 26 EM129 SCREW, HHC 3/4-10X8-1/ EM LOCK WASHER 3/ EM NUT HEX, 3/4-10 GR EM14324 CUP BEARING 1 30 EM14323 SPACER BEARING CONE 1 31 EM14325 CONE BEARING 2 32 EM14326 O-RING 2 33 EM14322 SPACER 1 34 EM98043 CRANKSHAFT, FORGED 1 35 EM14306 KEY CRANKSHAFT 2 * 38 EM BEARING 1 40 EM SEAL PLATE 1 41 EM WASHER, LOCK 5/8" 2 43 EM14302 SPACER, CAM BUSHING 1 44 EM14300 CAM ASSY EM14301 BUSHING, CAM 1 46 EM703 SCREW ALLEN HEAD 3/8-16X3/ EM175 BOLT 3/8-16X1-1/ EM14304 BEARING-CAM COMPLETE 1 50 EM ZERK FITTING 1 * 51 EM128 BOLT 5/8-11X4 HEX HEAD 2 52 EM620 WASHER, SPECIAL 5/ EM NUT HEX 5/ EM14307 SPROCKET 60 TEETH 1 56 EM14309 BUSHING 1 57 EM98043K CRANKSHAFT FORGE ASSEMBLY INCLUDES ITEM W/ * MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 81

78 MANIFOLD ASSY ACCESSORIES C-30HDG PUMP MANIFOLD ASSY. PAGE 82 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PART OF FRAME PART OF FRAME

79 MANIFOLD ASSY. C-30HDG PUMP MANIFOLD ASSY. NO. PART NO. PART NAME QTY. REMARKS 1 EM23946 ELBOW 3 X90 DEG.HD 1 2 EM28004DD REDUCER 3X2X36 HD 1 3 EM2C0B BALL 2 SPONGE 2 4 EM28904 COUPLING 3 HD *CF* 2 5 EM18409 O-RING EM14843 UPPER DURASEAT 1 7 EM18801 O-RING 6 8 EM18804 BALL 4-1/2 1 9 EM14801 MANIFOLD T ASSY EM136 PIN BALL STOP 3/4-16 x EM18409 O-RING 4 13 EM618 WASHER SPECIAL 4 14 EM NUT JAM HEX 3/ EM104 BOLT 5/8-11X2 HEX HEAD 3 16 EM WASHER LOCK 5/8 SPRING 3 17 EM WASHER, 5/ EM14842 SEAT DURA LOWER 1 19 EM14818 BALL EM14819A MANIFOLD ASSY. EASY OPEN 1 23 EM18409 O-RING 2 24 EM618 WASHER SPECIAL 2 26 EM137 TEE-BOLT 3/4-10X EM619 WASHER 3/ EM NUT HEX 3/4-10 GR EM14850 EXHAUST GATE H/D 1 31 EM CAPSCREW 3/4-10X5 HEX HD G EM NUT STOP REG.3/ EM14845 ARM CLAMP 1 34 EM135 BOLT 1-1/4-12X7 HEX HD EM14810 SPRING 1 36 EM451 NUT 1-1/4-12 LOCK 1 37 EM160 BOLT 3/8-16X3/ EM SCREW HHC 3/4-10X6 1 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 83

80 FRAME ASSY. C-30HDG PUMP FRAME ASSY. PAGE 84 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

81 FRAME ASSY. C-30HDG PUMP FRAME ASSY. NO. PART NO. PART NAME QTY. REMARKS 1 EM FRAME ASSEMBLY 1 2 EM70186 JACK STAND, REAR 1 3 EM744 CLEVIS PIN 1/2 X EM745 HAIR PIN C 5/8-3/4 1 5 EM14600A AXLE, ASSEMBLY WASHER THICK KEY COTTER 1/8 X EM SCREW HHC 1/2-13 X EM621 WASHER EM406 NUT LOCK 1/2 DIA EM FENDER RIGHT-SIDE INCLUDES ITEM W/% 13A%# BRACKET LIGHT, SQUARE FROM MARCH BOLT, HHC 1/2-13 X 3/ WASHER LOCK 1/ EM COVER 1 17 EM COVER 1 18 EM COVER 1 19 EM COVER 1 20 EM SCREW, HHC A WASHER, LOCK 3/ EM ROD 1 23 EM PLUG, 2 1/2 NPT HITCH, TONGUE 2" 1 27 EM NUT, HEX 5/8" NC 2 28 EM SCREW, HHC 5/8" NC 4-1/2 G EM LINK, QUICK 2 30 EM14165 BOLT EYE 2 31 EM619 WASHER 3/4 WILLIAM 2 32 EM NUT COUPLING 3/ EM SCREW 3/4-10 X 3 GR EM NUT STOP REG. 3/ EM COVER, CHASSIS BOTTOM WASHER, FLAT 3/ EM HHCS. 3/8" NC X 1" 8 38 EM HOOD REST, STEEL SCREW HHC 5/16-18 X 3/ EM WASHER LOCK 5/ EM BRACKET LIGHT, ROUND BEFORE MARCH EM26536 TAIL LIGHT, ROUND BEFORE MARCH TAIL LIGHT, SQ. (RIGHT-SIDE, CURB) FROM MARCH TAIL LIGHT, SQ. (LEFT-SIDE, STREET) FROM MARCH HOOD FASTENER, RUBBER 2 46 EM FENDER LEFT-SIDE INCLUDES ITEM W/# JACK STAND, FRONT 1 48 EM BRACKET, CLUTCH SAFETY 1 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 85

82 AXLE ASSY. C-30HDG PUMP AXLE ASSY. PAGE 86 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

83 AXLE ASSY. C-30HDG PUMP AXLE ASSY. NO. PART NO. PART NAME QTY. REMARKS 1 EM26518 CAP 14 CHROME 2 2 EM26615A TIRE ASSY INCLUDES ITEMS W/ 3 * WHEEL CANNOT BE PURCHASED SEPARATELY 4 TIRE 14" CANNOT BE PURCHASED SEPARATELY * 5# EM26306 DUST COVER 2 6# EM CASTLE NUT 2 7 EM705 PIN, COTTER 3/16X1 1/2 2 8# EM26329 WASHER 2 9# EM OUTER BEARING 2 10# EM OUTER CUP 2 11# EM26519 NUT 12 12# EM20612 STUD 12 13# EM26300 HUB 2 14# EM INNER CUP 2 15# EM INNER BEARING 2 16# EM26305 GREASE SEAL 2 17% EM20601 HUB ASSEMBLY INCLUDES ITEMS W/# 18% EM14600 AXLE 1 19 EM14600A AXLE WITH HUBS INSTALLED INCLUDES ITEMS W/% MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 87

84 C-30HDG PUMP MUFFLER, AIR FILTER, AND STOP SWITCH ASSY. MUFFLER, AIR FILTER AND STOP SWITCH ASSY PAGE 88 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) NOTES: STOPSWITCH MOUNTING HARDWARE IS INCLUDED WITH ITEM 5. 2 CLAMP IS INCLUDED WITH ITEM 1.

85 C-30HDG PUMP MUFFLER, AIR FILTER, AND STOP SWITCH ASSY. MUFFLER, AIR FILTER AND STOP SWITCH ASSY. NO. PART NO. PART NAME QTY. REMARKS 1 EM98076 FILTER, AIR 1 2 EM98162 PRECLEANER, AIR FILTER 1 3 ZE1 ELEMENT, AIR FILTER 1 4 EM GLAND CONNECTOR 1 5 EM14217 STOP SWITCH, ENGINE COVER 1 6 ZPPC CATALYTIC CONVERTER INCLUDED W/ENGINE 7 ZPPC14667 GASKET INCLUDED W/ENGINE BOLT, 5/16" DIA NC X 3/4" G NUT, LOCK 5/16" EM WASHER FLAT 5/16" NUT 5/16" EM PANEL, FILTER SUPPORT EM FLEX HOSE, AIR CLEANER 2" JUNE 2007 AND BELOW 112 EM FLEX HOSE, AIR CLEANER 2", 29.7" JULY 2007 AND ABOVE 132 EM SHOCK MOUNT EM WASHER 1/4" EM98078 CLAMP WASHER SPRING 1/4" MUFFLER EM NUT HEX 1/ EM EXHAUST PIPE EM CLAMP JUNE 2007 AND BELOW 184 EM CLAMP JULY 2007 AND ABOVE 195 EM BRACKET WASHER FLAT 3/8" A WASHER LOCK 3/8" MED EM CAPSCREW 3/8" NC X 1-1/4" G NUT HEX FINISH 3/ BOLT HHSC G EM WASHER FLAT 3/8" EM SUPPORT FRONT BUSHING, RUBBER FUEL FITTING, EM GASKET EM SLEEVE JULY 2007 AND ABOVE 462 EM HOSE, 8" JULY 2007 AND ABOVE MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 89

86 CLUTCH ASSY. C-30HDG PUMP CLUTCH ASSY. PAGE 90 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

87 CLUTCH ASSY. C-30HDG PUMP CLUTCH ASSY. NO. PART NO. PART NAME QTY. REMARKS 1 EM14351 CLUTCH ASSEMBLY COMPLETE INCLUDES ITEMS W/% 2% EM SNAP RING 1 3% EM SNAP RING 1 4% CLUTCH BEARING 1 5% CLUTCH HOUSING (DRUM) 1 6% EMR ROTOR ASSEMBLY INCLUDES ITEMS W/# 7%# EM HUB 1 8%# EM SPRING 6 9%# EM SHOE 6 10% WASHER CANNOT BE PURCHASED SEPARATELY 11% KEY CANNOT BE PURCHASED SEPARATELY 12% EM WASHER, LOCK 1 13% EM RETAINING BOLT, HHCS 1/2-13X2 G GUARD, CLUTCH SCREW, M10 X 20 P WASHER, LOCK 7/16" WASHER, FLAT 3/ BOLT, 1/4" NC X 1 GR WASHER, LOCK 1/4" 2 23 EM SHAFT STUB (FLANGE) ENGINE 1 24 EM SCREW, HHC M8X A WASHER, LOCK 3/8" 6 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 91

88 ENGINE MOUNTING BRACKETS ASSY. C-30HDG PUMP ENGINE MOUNTING BRACKETS ASSY. PAGE 92 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

89 ENGINE MOUNTING BRACKETS ASSY. C-30HDG PUMP ENGINE MOUNTING BRACKETS ASSY. NO. PART NO. PART NAME QTY. REMARKS 1 EM SUPPORT BRACKET, RIGHT 1 2 EM SUPPORT BRACKET, LEFT SPACER, 20 OD X 11 ID X 32 LONG SPACER, 76 X 30 X BRACKET, ECU MOUNT PLAIN WASHER, 10MM HELICAL SPRING LOCK WASHER, 10MM PLAIN WASHER, 8MM HELICAL SPRING LOCK WASHER, 8MM HEX SERRATED FLANGE CAP SCREW, M X HEX CAP SCREW, M X HEX CAP SCREW, M X HEX CAP SCREW, M8/1.25 X EM ENGINE, HYUNDAI ZENITH C EM BRACKET RISER 2 32 EM BOLT 1/2" NC X 5" WASHER, LOCK 1/2" WASHER, FLAT 1/2" HEX NUT, 1/ NUT, 1/2" 2 48 EM BOLT HEX 1/2 X 2-1/2" 2 49 EM THREADED PIECE 2 50 EM SUPPORT BRACKET, REAR 1 51 BOLT INCLUDED W/ENGINE 52 WASHER INCLUDED W/ENGINE 53 WASHER INCLUDED W/ENGINE 54 NUT INCLUDED W/ENGINE 322 EM BOLT M8X EM WASHER LOCK 5/16" EM BOLT, 1/2" NC X 1-3/4" EM CLUTCH GUARD EM GUARD 1 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 93

90 C-30HDG PUMP RADIATOR, MOUNTING BRACKET AND HOSES ASSY. RADIATOR, BRACKET AND HOSES ASSY. PAGE 94 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

91 C-30HDG PUMP RADIATOR, MOUNTING BRACKET AND HOSES ASSY. RADIATOR, BRACKET AND HOSES ASSY. NO. PART NO. PART NAME QTY. REMARKS BRACKET, TOP MOUNT BRACKET, TUBE SUPPORT CONNECTOR, STRAIGHT 410 X 32 DIA PLAIN WASHER, 10 MM HELICAL SPRING LOCK WASHER, 12MM WASHER, PLAIN 12MM X 23.7MM HELICAL SPRING LOCK WASHER, 12MM NUT, LOCK, FLANGE, M HEX CAP SCREW, M X HEX SERRATED FLANGE CAP SCREW, M6-1 X HEX SERRATED FLANGE CAP SCREW, M X HEX CAP SCREW, M X HEX SERRATED FLANGE CAP SCREW, M X ISOLATOR, 32 X32, M CLAMP, HOSE, WORM-DRIVE CLAMP, TUBE/HOSE, LOOP/OFFSET HOSE, 20R4, DIA 32, HYUNDAI 1.6 TOP REAR HOSE, 20R4, DIA 32, HYUNDAI 1.6 LOWER REAR HOSE, 20R4, DIA 32, HYUNDAI 1.6 TOP FRONT HOSE, 20R4, DIA 32, HYUNDAI 1.6 FRONT BOTTOM BOLT, 1/4" X 3/4" WASHER SPRING 1/4" 2 23 EM CLAMP 1/2" 2 24 EM HOSE BRACKET, CROSS ISOLATOR, 46.4MM, 51.21MM, 1/ LARGE OD PLAIN WASHER, 1/2 X 2 X 1/ HEX CAP SCREW, 1/2-13 X 2-1/ HEX SERRATED FLANGE NUT, M HEX SERRATED FLANGE CAP SCREW, M10-1.5X25 2 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 95

92 CONTROL BOX ASSY NOTES: INCLUDED WITH ITEM 10, 1 PUMPING CONTROL SWITCH P/N INCLUDED WITH ITEM 8, 2 IGNITION SWITCH P/N INCLUDED WITH ITEM 12, 3 REMOTE OUTLET PLUG P/N INCLUDED WITH ITEM 6 or 22, 4 PILOT LAMP ASSY. P/N C-30HDG PUMP CONTROL BOX ASSY PAGE 96 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) 17 3 HIGH LOW CHECK ENGINE ENGINE HOURS HOOD OPEN 8A EMERGENCY STOP PUMPING CONTROL REMOTE OFF ON ON IGNITION SWITCH OFF ON 23 REMOTE OUTLET 20 START CIP

93 CONTROL BOX ASSY. C-30HDG PUMP CONTROL BOX ASSY. NO. PART NO. PART NAME QTY. REMARKS 1 EM FRONT PANEL OVERLAY 1 3 EM98036 SWITCH, THROTTLE CONTROL 1 6 EM RED PILOT LIGHT W/BULB IGNITION SWITCH 1 8A EM CONNECTOR, PLASTIC IGNITION SWITCH KEY 1 10 EM40711 SWITCH, PUMPING CONTROL 1 11 EM CONTROL BOX 1 12 EM26789 RECEPTACLE (REMOTE) 1 13 EM18706 HOURMETER BOLT, HEX 1/4 IN. x 3/4 IN EM SUPPORT, ZENITH CONTROL PANEL WASHER, FLAT 1/4 IN NUT, HEX 1/4 IN EM NUT, LOCK 1/4 IN EM SIDE SUPPORT, ZENITH CONTROL PANEL 1 20 EM BUSHING, 1/4-20 RUBBER MUFFLER 3 21 EM EMERGENCY STOP BUTTON 1 22 EM517175A AMBER PILOT LIGHT W/BULB 1 23 EM CONTACT BLOCK, EMERGENCY SWITCH 1 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 97

94 BATTERY ASSY. C-30HDG PUMP BATTERY ASSY. PAGE 98 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

95 BATTERY ASSY. C-30HDG PUMP BATTERY ASSY. NO. PART NO. PART NAME QTY. REMARKS 1 EM CABLE, POSITIVE BATTERY 1 2 EM COVER, POSITIVE TERMINAL BOX, BATTERY 1 4 EM NUT, HEX 5/ EM WASHER, FLAT 5/ EM WASHER, LOCK 5/ EM CABLE, NEGATIVE BATTERY 1 8 EM COVER, NEGATIVE TERMINAL 1 9 EM BATTERY, 12 VOLT 1 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 99

96 FUEL TANK ASSY. C-30HDG PUMP FUEL TANK ASSY. PAGE 100 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

97 FUEL TANK ASSY. C-30HDG PUMP FUEL TANK ASSY. NO. PART NO. PART NAME QTY. REMARKS 1 EM HOSE, FUEL 5/16 IN. 18" 2 EM CLAMP, HOSE 1 3 ZPPC6304 FILTER, FUEL 1 5 EM PLUG, 1/4 IN. 1 7 EM FUEL TANK ASSY, STEEL INCLUDES ITEM 13 8 EM FUEL CAP 1 9 ZPP62027 PUMP, FUEL 1 10# BUSHING 1 11# HOSE, 4-1/2" 1 12# SCREEN 1 13 EM PICK UP TUBE ASSY INCLUDES ITEMS W/# 14# EM FITTING 1 15 CLAMP, FUEL FILTER, #34 2-1/2" ID INCLUDED W/FUEL PUMP 16 CLAMP, FUEL PUMP, #26 1-5/8" ID INCLUDED W/FUEL PUMP MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 101

98 HOPPER ASSY C-30HDG PUMP HOPPER ASSY. PAGE 102 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) 3 5

99 HOPPER ASSY. C-30HDG PUMP HOPPER ASSY. NO. PART NO. PART NAME QTY. REMARKS 1 EM14159 HOPPER SCREEN 1 2 EM14141 HOPPER 1 3 EM PIN, HAIR 2 4 EM104 BOLT, 5/8-11X2 HEX HEAD 3 5 EM WASHER 5/8 FLAT 3 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 103

100 HOOD ASSY. C-30HDG PUMP HOOD ASSY. PAGE 104 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

101 HOOD ASSY. C-30HDG PUMP HOOD ASSY. NO. PART NO. PART NAME QTY. REMARKS RIVET LATCH KIT, RUBBER BEFORE MARCH EM LATCH KIT, STEEL FROM MARCH EM517020RL HOOD ASSY., RUBBER LATCH BEFORE MARCH EM HOOD ASSY., STEEL LATCH FROM MARCH BUMPER, RUBBER 2 5 EM406 NUT 1/2-13 HEAVY HEX 2 6 EM124 BOLT 1/2 DIA-NC X4 G5 2 7 EM SCREW, HHC 1/4-20 X 3/4 3 8 EM WASHER MANUAL HOLDER BEFORE MARCH EM NUT LOC NYLON 1/ WASHER, FLAT 1/ MANUAL HOLDER FROM MARCH EM SCREW, HHC 1/4-20 X 3/ RAL1003S PAINT, SPRAY CAN 12 OZ. (YELLOW) AR MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 105

102 LUBRICATION PANEL ASSY. NOTE Grese dily, two to three shots of #2 multi-purpose utomotive grese. Over-gresing ny bering will not dmge the mchine. C-30HDG PUMP LUBRICATION PANEL ASSY. POSITION LOCATION LENGTH OF LINES 1...COMPENSATOR ROD... 28" 2...COMPENSATOR ROD... 31" 3...COMPENSATOR ROD... 28" 4...LOWER ROCKER ARM COMPENSATOR ROD... 34" 5...LOWER CONNECTING ROD- DRIVE SIDE... 10" 6...LOWER ROCKER ARM - DRIVE SIDE... 15" 7...UPPER ROCKER ARM - COMPENSATOR SIDE... 28" 8...UPPER ROCKER ARM - DRIVE SIDE... 26" 9...COUNTER SHAFT BEARING - SPROCKET SIDE... 20" 10...COUNTER SHAFT - PULLEY SIDE... 20" 11...UPPER CONNECTING ROD - DRIVE SIDE... 40" 12...CRANKSHAFT BEARING BLOCK... 42" 13...CAM BEARING... 42" 14...CRANKSHAFT BEARING FLANGE... 20" TOTAL LENGTH OF LINES REQUIRED " PAGE 106 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17)

103 LUBRICATION PANEL ASSY. C-30HDG PUMP LUBRICATION PANEL ASSY. NO. PART NO. PART NAME QTY. REMARKS 1 EM FITTING, GREASE 1/8" NPT 14 2 EM STRAIGHT FITTING 1/8" NPT COUPLING W/NUT 1/8' NPT 14 4 EM PLASTIC HOSE LINE 1/4" DIA.... AR... 1FT=1PC 5 EM PROTECTIVE SLEEVE 3/8" (HOSE)... AR... 1FT=1PC 6 EM TIE-WRAP 2.5 x 95 MM AR 7 EM ADAPTER, 90 DEGREE ELBOW 1 * 8 EM KIT, LUBRICATION INCLUDES ITEMS W/ * MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 107

104 REMOTE CONTROL CABLE ASSY. 9 8 C-30HDG PUMP REMOTE CONTROL CABLE ASSY PAGE 108 MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) NOTES: 1 INCLUDED WITH ITEM 1.

105 REMOTE CONTROL CABLE ASSY. C-30HDG PUMP REMOTE CONTROL CABLE ASSY. NO. PART NO. PART NAME QTY. REMARKS 1 EM16753 JUNCTION BOX 1 2 EM16754 SWITCH, MICRO 1 3 EM16756 GUARD SWITCH - ALUMINUM 1 4 EM CONNECTOR, 3/16 RING 2 5 EM26791 GRIP CORD SEAL 1 * 6 EM26792 ADAPTER C0RD 100 FT. 1 7 EM26793 ADAPTER CORD GRIP 1/2" 1 8 * EM26790 CORD 25' MXPE 1 9 EM26788 REMOTE WITH 25' CORD ONLY INCLUDES ITEMS W/ * MAYCO C-30HDG PUMP OPERATION AND PARTS MANUAL REV. #7 (12/04/17) PAGE 109

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