PV (Pit Viper ) Conveyor Belt Primary Cleaner

Transcription

1 PV (Pit Viper ) Conveyor Belt Primary Cleaner Installation & Operation Manual Revision Description of Change Changed By Date A First Issue TT 31/3/09 B CR 2430, dimension correction, update graphics TT 3/4/09 C Updated Melbourne Address & Removed SA Address SH 3/08/09 D Final Checklist Updated Items 4 & 5 Reversed SH 15/04/10 E Revised Drawing F revision D KO 14/03/11 F F0347 deleted &replaced with correct drawing F0374 see SH 28/04/11 CR3888 G Updated dwg F0374, removed Mt Isa contact details KO 21/06/12 H Updated format of manual KO 5/1/13 I Updated office details KO 11/3/14 J Updated ESS & Martin Logos. Added Karratha address KO 4/6/14 K Added drawing F0492 KO 23/6/14 L Changed Name, added air tensioner, general revisions TT 24/4/15 M Updated office details KO 7/7/15 Revision M 1 07/07/2015

2 ENGINEERING SERVICES and SUPPLIES OFFICE DETAILS Location Address Phone & Fax CURRUMBIN EMERALD GLADSTONE KALGOORLIE KARRATHA MACKAY MAITLAND PERTH TOWNSVILLE SOUTH AUSTRALIA VICTORIA WOLLONGONG Traders Way PO Box 121 Currumbin QLD Coaker Dr PO Box 1861 Emerald QLD 4720 Unit 2/34 Chapple Street PO Box 1475 Gladstone QLD 4680 Unit A 255 Dugan St Kalgoorlie WA 6430 PO Box Kalgoorlie WA 6433 esskal@esseng.com.au 26 Midas Road Malaga WA 6090 esskar@esseng.com.au 1 Progress Street Paget, QLD 4740 PO Box 5755 Mackay Mail Centre QLD 4741 essmac@esseng.com.au Unit 2 Barton Court 6 Johnson Street Maitland NSW 2320 essmai@esseng.com.au 26 Midas Road Malaga WA 6090 essper@esseng.com.au 5/42 Carmel St Townsville QLD 4814 esstow@esseng.com.au 5 Cormorant Court. Middleton. SA esssa@esseng.com.au Unit 4 / 314 Governor Road Braeside VIC 3195 essvic@esseng.com.au Unit 1 / 20 Doyle Avenue PO Box 343 Unanderra NSW 2526 esswol@esseng.com.au Phone: (07) Fax: (07) Phone: (07) Fax: (07) Phone: (07) Fax: (07) Phone: (08) Fax: (08) Phone: (08) Fax: (08) Phone: (07) Fax: (07) Phone: (02) Fax: (02) Phone: (08) Fax: (08) Phone: (07) Fax: (07) Mobile: Phone: (03) Fax: (03) Phone: (02) Fax: (02) TOLL FREE FROM ANYWHERE IN AUSTRALIA VSS TOLL FREE Revision M 2 07/07/2015

3 INDEX SECTION 1 SAFETY SECTION 2 INTRODUCTION SECTION 3 PREPARATION FOR INSTALLATION SECTION 4 INSTALLATION SECTION 5 SPRING TENSIONER SECTION 6 AIR TENSIONER SECTION 7 MAINTENANCE PROCEDURES SECTION 8 COMMISSIONING SECTION 9 OPERATOR TRAINING SECTION 10 SECTION 11 SECTION 12 TROUBLE SHOOTING INSTALLATION ARRANGEMENT DRAWINGS SPARE PARTS SECTION 13 FINAL CHECKLIST Revision M 3 07/07/2015

4 WARRANTY NOTE ESS WARRANTS the PV Primary Cleaner (formerly Pit Viper) to be free of defects both in materials and workmanship for a period of 12 months from the date of despatch of the product from the ESS factory. The warranty given by ESS in this regard will extend only to replacing or repairing product shown to be defective. The warranty also is subject to the following restrictions: (a) (b) (c) Installation of the product contrary to the instructions contained in the supplied manual will void such warranty absolutely; The warranty will not extend to any liability for injuries incurred and which result from the use of the product contrary to the instructions in the manual; Save as prescribed by law, ESS will not be liable for any damage sustained by a purchaser or a third party by way of consequential loss arising out of defects in the product. You are asked to note that ESS offers purchasers a service whereby either: (a) (b) It will install the product and certify the correctness of such installation, or Certify the correctness or otherwise of the installation of the product by third parties. This certification service is designed to ensure that you obtain the full benefit of the ESS warranty hereby provided. If you would like to take advantage of the installation certification service provided, please contact ESS regarding the service. Refer to the Final Checklist at the back of this manual. Visit the ESS website to register your product warranty. THE CONTENTS OF THIS MANUAL ARE COPYRIGHT TO: ESS ENGINEERING SERVICES AND SUPPLIES PTY LTD ALL RIGHTS RESERVED Information contained herein is for use in the operation of the PV-38108, purchased from ESS and cannot be passed on to any other party without express permission, in writing, from ESS. Revision M 4 07/07/2015

5 SECTION 1 SAFETY All equipment installed on or around a conveyor belt must comply with AS Conveyors Safety requirements. Ensure that only suitably qualified and trained personnel install and service this product, and that all site and statutory safety procedures are followed. The PV PRIMARY CLEANER is designed to be quickly and easily serviced by appropriate personnel, however under no circumstances should any personnel attempt installation or service of this equipment whilst the conveyor belt is running. The conveyor belt drive and any associated equipment must be shut down and locked out according to plant safety procedures before attempting work requiring access to or opening of the chute or conveyor enclosure. Contact with a moving conveyor belt or its drive components can result in serious injury or death. The PV Cleaner may be inspected or the tension adjusted with the belt running as long as suitable visual access is available, but the service person should never reach into or enter the conveyor enclosure. No other service work is able to be carried out with the conveyor running. Shut down and lock out the conveyor for any work requiring any part of the body to enter the conveyor enclosure, or be exposed to moving components. The following hazards that may be present when installing this equipment: Hazard Hazard X Moving Conveyor - ISOLATE Other: Hot Work Other: Working at Heights Other: Heavy Lift Other: Persons Working Overhead Other: Persons Working Below Other: Electrical & Cabling Other: Pinch Points Other: Trip Hazards Once hazards have been identified, the installer should undertake and document a comprehensive Job Hazard Analysis according to site requirements and good safeworking practice. The installer must identify all hazards and apply appropriate controls before proceeding with the installation or servicing of this equipment. Revision M 5 07/07/2015

6 SECTION 2 INTRODUCTION The PV is a conveyor belt primary cleaner. It has been renamed from Pit Viper to avoid confusion with another cleaner in the ESS / Martin range. It is normally mounted on the face of the conveyor belt head pulley and is designed to peel off the thick layer of loosely adhering material that often accounts for up to 80% of carryback. The PV Primary Cleaner is normally used in conjunction with at least one secondary cleaner, such as the Inline Premium Secondary Cleaner, and often with a water spraying system. The one piece blade is made of cast urethane, with an aluminium extrusion insert for locating to the cleaner mainframe. The blade is secured to the mainframe with one fixed and one removable pin. Blade replacement is quick and easy. Important Points to Remember Concerning the PV Primary Cleaner are; 1. The cleaner is directional - it will only clean the belt travelling in the design direction. However, the cleaner will not be damaged or affected by belt direction reversal. 2. The cleaner is suitable for use on crowned head pulleys and damaged or grooved belts. The urethane blades quickly conform to the belt profile. 3. For slow moving belts, the cleaner should be positioned lower on the head pulley to ensure the blades are clear of the main material flow. Revision M 6 07/07/2015

7 SECTION 3 - PREPARATION FOR INSTALLATION 1. CHECK INSTALLATION DRAWINGS - Ensure that you have the correct drawings and equipment for your conveyor(s). 2. PRE-ASSEMBLE THE CLEANER(S) AND MOUNTS - Do this in your workshop or similar free area, rather than at the Conveyor. This will enable you to: verify all required equipment is present familiarise yourself with the cleaner assembly allow you to plan the installation, reducing installation time. 3. ASSEMBLE THE NECESSARY TOOLS & SAFETY EQUIPMENT REQUIRED FOR THE INSTALLATION 4. OBSERVE THE CONVEYOR WHILE RUNNING AND CONVEYING MATERIAL - Observe the material trajectory Observe the belt direction - does it reverse or roll back? Observe the belt splice condition Does the belt run true, or track off to one side? Is the Head Pulley out-of-round? Consult ESS if any UNUSUAL conditions are observed in the above. These conditions may result in recommendation of a different installation position or even a different cleaner. Revision M 7 07/07/2015

8 SECTION 4 - INSTALLATION Conveyor must be shut down and locked out before any installation or service work is performed. Contact with a moving comveyor belt can result in serious injury or death. Ensure suitably qualified personnel install the equipment. Ensure all safety permits are in place. Follow all approved procedures for any hazardous work including confined spaces, working at heights and any other identified hazards. NOTE 1 NOTE 2 Step 1. For original equipment installation, where cleaner cutouts and brackets have been fabricated into the chute during construction, ignore steps 1 and 2. For installation on enclosed head pulley chutework, draw all dimension lines on chute wall. In applications where head pulley is not enclosed, custom designed brackets are necessary to ensure correct cleaner position. Contact ESS for details of standard brackets available or to assist in design of special brackets. Locating Mainframe Centreline Using the typical installation drawing supplied in this manual, locate the mainframe s centreline on both sides of the conveyor. Measure radially 75mm from the face of the belt. From this point draw an arc using the pulley s centreline as the centre point. The centreline of the mainframe can be located anywhere along the radius as long as the blade does not lie in the material s trajectory. The optimum position is for the blade tip to be between 0 and 15 below the horizontal centreline. NOTE: Material trajectory is defined as the path of the material being discharged from the belt. Figure 1 Locating the Cleaner Centre Line Revision M 8 07/07/2015

9 Verify Mainframe Position before Proceeding Position the mount and tensioner assembly over the centreline marks for the mainframe. Verify that the mounts fit, and that adequate room is available to tension the cleaner. If used, position the CYA door frame to ensure it fits. The CYA Door is usually used in conjunction with a Stand-off Bracket refer to drawings at the back of this manual for arrangement details. The mount is a bolt-on bracket with a replaceable bush. One of these is installed each side of the chute, and the tensioners attach via the same mount bolts. Figure 2 Mount and Mount Bush If mounts, tensioner or door frame interfere with structural members, it may be necessary to locate the cleaner elsewhere on the 75mm offset radius. If the tensioner only interferes, remember that the tensioner can be reverse assembled, or that the mount and tensioner assembly may be rotated about the cleaner centre line. The side of the chute from which inspections, adjustments and servicing will be carried out will be referred to as the Operator Side. The opposite side of the chute will be referred to as the Far Side, and will only require access (other than at installation) on large belts where an optional second tensioner assembly may be added for more uniform application of tensioning force. Step2. At the selected mainframe mounting positions, mark out and cut the mainframe and mount fastener holes (if required) in each side of the chute. Refer to the installation drawing at the back of this manual. If a CYA door is to be installed, use the door frame as a template to mark the door cut-out on the operator side. Proceed to cut the door hole, but ensure that the marked centre lines of the cleaner are not totally removed - you will need these to position the mainframe. Fit the CYA door frame over the cutout and tack weld in position. If a stand-off bracket is to be bolted over a CYA door, the mounting holes also need to be cut or drilled. Step 3. The PV Mainframe is a fabricated member comprising a length of DN40 steel pipe, with a steel flat bar for attachment of the blade. On wider belts, an additional flat bar stiffener is added. Revision M 9 07/07/2015

10 Remove the blade from the mainframe. Do this by removing the lock pin, then sliding the blade clear of the fixed pin at the opposite end. The blade will then come free of the mainframe. Insert the mainframe without the blade through the mount or CYA door cutout in the operator side of the chute and continue until the far end of the mainframe passes through the far side mount cutout. Ensure that the removable pin end of the mainframe is toward the operator side of the chute. Be careful not to lose the lanyard and lock pin from the mainframe. Step 4 Slide the operator and far side mounts on to the mainframe ends, then clamp or loosely bolt the mounts to the chute walls. If a stand-off bracket is to be used over a CYA door, and the cutout has been made, fit the operator side mount to the appropriate stand-off bracket, and clamp or bolt the stand-off bracket in the desired position. Position the mainframe so that the blade mounting flat bar is centred on the belt. Step 5. Check the position of the mainframe. Is the centre line of the mainframe positioned 75mm from the belt face? Is the mainframe level, or equal to the pulley shaft? Fit the blade to the mainframe by locating it on the flat bar, then sliding until the far end of the blade engages on the fixed pin. Fit the removable pin to the operator end of the blade / flat bar interface. Rotate the mainframe until the blade contacts the belt. Does the blade tip touch evenly across the belt? For crowned head pulleys, ensure that the outside ends of the blade are an equal distance from the belt, whilst the centre of the blade is touching. Again, these gaps will quickly close on tensioning. If any questions above have been answered NO, take appropriate action to correct the installation. If all questions are answered YES, proceed. Step 6. Securely bolt the cleaner mounts, brackets and weld the CYA door frame to the chute wall. If not already done, fit the tensioner assembly(ies) to the mount(s). Centre the blade to the head pulley (or the belt if it is correctly tracked). All ESS cleaners are designed to clean an area narrower than the actual belt width. This is to allow for a small amount of lateral movement of the belt and to protect the edge of the belt from possible damage. Lateral movement of the mainframe is prevented by the tensioner s locking hub and a lock collar on the far side mount. Where optional dual tensioners are used, the tensioner locking hubs only are used. Lock these items in position, allowing about 1-2mm of end float in the cleaner mainframe. Revision M 10 07/07/2015

11 Step 7. WHERE A CYA DOOR IS FITTED. Measure the position of the mainframe in relation to the CYA door frame. Mark this position on the CYA door rubber cover, and cut a neat hole, approximately 50mm diameter in the cover. Cut a straight line from this hole to the nearest edge of the rubber cover. Install the rubber cover over the mainframe pipe, and push into place on the door frame. Anchor the loose end of the cover lanyard. Recent version of the CYA door will also have an internal steel mesh safety cover. Cut a hole in the mesh neatly around the mainframe and re-fit the mesh to the frame. Steel Frame Mesh Safety Screen Rubber Cover Figure 3 CYA Door Assembly Figure 4 Fitting the CYA Door Safety Mesh Revision M 11 07/07/2015

12 SECTION 5 - SPRING TENSIONER The ESS PV Primary Cleaner is mounted to the conveyor structure via ESS Flex Mounts. The Flex Mount is a steel mount plate with a urethane bush. Other bush materials are available for special applications. The Spring Tensioner unit attaches to the existing mount bolts. The Spring Tensioner is a simple, robust and reliable blade tensioning unit. It can be assembled to tension in either the clockwise or anti-clockwise direction and has multiple mounting positions for each direction. Clockwise Tensioning Anti Clockwise Tensioning Figure 5 Spring Tensioner Operating Direction 5.1 INSTALLATION OF THE SPRING TENSIONER Operating Arm Flex Mount with Bush Spring Anchor Plate Adjusting Rod Figure 6 Spring Tensioner Components Revision M 12 07/07/2015

13 Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Fit the anchor plate to the mount using two of the existing M16 mount bolts. Ensure that the plate is in the correct orientation for the desired tensioning direction. The anchor plate can be installed on the opposite side mount holes for tensioning in the opposite direction. The anchor plate and tensioner assembly can also be turned upwards to suit site restrictions. Slide the operating arm onto the cleaner mainframe, again ensuring that it is in the correct orientation for the desired tensioning direction. Insert the threaded end of the adjusting rod through the operating arm slot, with the clevis end toward the anchor plate. Fit the adjusting rod clevis onto the anchor plate pin and secure with clip provided. Fit spring, washer, nut and locknut to the threaded end of the adjusting rod. Only run the adjusting nut a few turns onto the adjusting rod. Do not try to adjust or compress the spring yet. Using a pipe wrench or similar, grip the mainframe and rotate the cleaner until the blade tip is lightly touching the belt. With the operating arm fully retracted against the spring, lock the operating arm onto the cleaner mainframe by tightening the two lock screws. Ensure that the operating arm hub is 1-2mm clear of the mount to allow free rotation without excessive lateral movement of the mainframe. Whilst still supporting the cleaner with the pipe wrench, adjust the nut (not locknut) against the spring until the spring just begins to compress. Release the pipe wrench. For cleaners fitted with optional dual tensioners, repeat above procedure for other side. For cleaners with one tensioner only, fit the locking collar onto the far end of the cleaner mainframe, again locking it into position 1-2mm clear of the mount. Revision M 13 07/07/2015

14 5.2 SPRING TENSIONER ADJUSTMENT PROCEDURE Note: The Spring Tensioner is mounted externally to the conveyor chute, and as such is normally able to be adjusted with the conveyor in service. Under no circumstances should any person reach into or enter a conveyor enclosure while the belt is running. For any conveyor belt cleaner service, maintenance or adjustment that requires entry to the conveyor enclosure by any part of the body, first ensure that the conveyor is shut down and locked out to site safety procedures. Warning: Contact with moving conveyor components can result in severe injury or death. To adjust the PV Spring Tensioner: Loosen the locknut away from the adjusting nut on the adjusting rod. Turn the adjusting nut until the cleaner blade is pressed against the belt, and the spring begins to compress. Continue until the spring is compressed to the length shown in the following table 1. Once the correct spring compression is achieved, run the locknut up against the adjusting nut, and use two wrenches to tighten the nuts together. For cleaners with optional dual tensioners, repeat this procedure on the opposite side. Table 1 Spring Tensioner Settings Belt Width Spring Length (92 **) (89**) ** Note: For Cleaners with optional dual tensioners. The settings shown are for each tensioner. Revision M 14 07/07/2015

15 SECTION 6 - AIR TENSIONER The ESS PV Primary Cleaner is mounted to the conveyor structure via ESS Flex Mounts. The Flex Mount is a steel mount plate with a urethane bush. Other bush materials are available for special applications. The Air Tensioner unit attaches to the existing mount bolts. The Air Tensioner unit utilises compressed air via rubber air bags to apply precise load onto the cleaner blades without the need for regular adjustment. The Air Tensioner can be assembled to tension in either direction and can be rotated to several positions to overcome site restrictions. The tensioning direction will depend on which side of the chute the tensioner is attached. For larger belts with two tensioners (one each side) the two tensioners will need to be setup to operate in opposite directions (one clockwise and one anti-clockwise). The installer needs to be aware of this and ensure that the tensioning direction is correct. Clockwise Tensioning Anti-Clockwise Tensioning Figure 7 Air Tensioner Operating Direction Revision M 15 07/07/2015

16 6.1 INSTALLING THE AIR TENSIONER Flex Mount and Bush Travel Stop Operating Arm Air Tensioner Bracket Stop Bracket Air Bag Air Bag Bracket Figure 8 Air Tensioner with Flex Mount Step 2 Fit the air tensioner bracket to the mount using two of the existing mount bolts. There are M16 bolt holes in the bracket to match the Secondary Flex Mount. Ensure that the bracket is in the correct orientation for the desired tensioning direction. The bracket can be installed on the opposite side mount holes for tensioning in the opposite direction. The bracket and tensioner assembly can also be turned upwards to suit site restrictions. Attach the airbag bracket to the air tensioner bracket. Step 3 Attach the blank end of the airbag to the Operating Arm using two x 3/8 socket head screws. Step 4 Slide the operating arm onto the mainframe with the airbag towards the airbag bracket side of the mount and attach the open end (end with 3 holes) of the airbag to the airbag bracket. Ensure that the Stop Bracket is installed at the same time and secured with the same two x 3/8 socket head screws. Revision M 16 07/07/2015

17 Step 5 Fit the Travel Stop Rod to the Operating Arm with the M6 screw provided. Pass the other end through the Stop Bracket and fit the nyloc nut and washer. This prevents over-extension of the airbag. Step 6 Using a pipe wrench or similar, rotate the cleaner mainframe until the blade tips lightly touch the belt surface at the cleaning position. With the airbag fully compressed, secure the operating arm to the cleaner using the locking screws. Allow 1-2mm clearance between the operating arm and the T.A. Mount to enable free rotation whilst minimising lateral movement. Step 7 For cleaners on belts 1600mm or wider, repeat the above for the far side. For belts 1500mm and less, simply fit the lock collar onto the far side of the cleaner and secure, again allowing 1-2mm lateral clearance. Step 8 The cleaner is now ready for attachment of the air supply system 6.2 AIR SUPPLY CONNECTION The Air Tensioner Assembly is supplied with a ¼ BSP / 6mm push fit tube connector. This fitting is simply screwed into the air bag, and the 6mm air supply tube pushed into the fitting. For cleaners with dual tensioners, additional fittings are supplied to allow the air supply to be connected to both air bags via a tee. The 6mm tube is passed through the cleaner mainframe to provide air to the far side airbag. Connect all air fittings using a good quality liquid compound or gas seal thread tape. 6.3 AIR SUPPLY CONTROLS ESS recommends the use of an ESS Air Tensioner Control Box to deliver the correct air pressure to the tensioner(s). A number of models are available, all with optional solenoid valve supply control. Refer to the ESS Air Tensioner Control Box manual for further installation and operation details. ESS Air Control Boxes available include: Part Number Description Enclosure Material M Air Ten Compact Control Box 1 Cleaner Plastic M Air Ten Compact Control Box 2 Cleaners Plastic M Air Ten Compact Control Box 3Cleaners Plastic M Air Ten Compact Control Box 4 Cleaners Plastic M Air Ten Control Box 1 Cleaner Stainless Steel M Air Ten Control Box 2 Cleaners Stainless Steel M Air Ten Control Box 3 Cleaners Stainless Steel M Air Ten Control Box 4 Cleaners Stainless Steel Once the fittings are connected and secured, the air tensioner may be pressurised. Pressures are indicated in table 2. On completion, pressure check all fittings and connections using soapy water or equivalent to ensure no leaks are present. Rectify any leaks found compressed air losses can account for substantial plant running costs. Revision M 17 07/07/2015

18 ESS Air Control Box Air Supply Inlet Single Tensioner Cleaner Regulated Air Outlets 6mm tube with push fittings Dual Tensioner Cleaner Pass tube through mainframe to far side tensioner Tee piece with push fittings Figure 9 Air Connections Revision M 18 07/07/2015

19 6.4 AIR TENSIONER SETTING ESS Air Control Boxes are available to control single cleaners or a full system with a number of cleaners. The ESS Air Control Box utilises a small low pressure regulator to control the pressure to each cleaner. The supply to each cleaner is adjusted by rotating the adjusting knob on the appropriate regulator. The pressure is displayed on the pressure gauge attached to the regulator. A separate manual is available for ESS Air Control Boxes. The table below lists suggested pressure settings for various belt widths for the PV Cleaner. Use these inflation pressures as a guide only. Belt speed, material, number of cleaners on belt and acceptable blade wear should be taken into account when setting pressures. Avoid over-pressuring the cleaner. This will lead to poor performance, excessive blade wear and possible damage to components. Table 2 Air Tensioner Pressure Settings BELT PRESSURES WIDTH KPa PSI *50 * *50 * *55 * *60 * *70 *10 * - Dual tensioners fitted - pressure per tensioner given. (Generally connected by balance tube.) Revision M 19 07/07/2015

20 SECTION 7 MAINTENANCE PROCEDURES 7.1 Resetting the Spring Tensioner The following procedures may only be performed on a conveyor that is shut down and locked out to site safety procedures. Contact with a moving conveyor or its components can result in serious injury or death. The Spring Tensioner can occasionally run out of adjustment travel before the cleaner blade is fully worn. In this case, the tensioner can be reset to the adjustment start point in the following way: Shut down and lock out the conveyor. For optional dual tensioner cleaners, perform this procedure one side at a time. Release the lock nut and run it fully out. Gradually release the adjusting nut. In some cases the cleaner will slowly de-adjust with the nut, and in others it may stick, then drop suddenly. Keep fingers clear. When the adjusting nut is fully retracted, grip the cleaner mainframe with a pipe wrench, and release the lock screws in the operating arm. Rotate the cleaner mainframe so that the blade tip lightly touches the belt and hold it in this position. By hand, fully retract the operating arm against the spring and adjusting nut. Re-tighten the lock screws in the operating arm. Release the pipe wrench from the mainframe and follow the adjustment procedure in the previous section. For cleaners with optional dual tensioners, this procedure is even easier. The opposite side tensioner will hold the cleaner in position, so the use of a pipe wrench is not necessary, but the procedure should be carried out on both sides before retensioning to equalise the tensioner positions. 7.2 Resetting the Air Tensioner This procedure is used when the Air Tensioner Travel Stop nut is in contact or close to contacting the Stop Bracket, but substantial wear life remains in the blades. Shut down and lock out the conveyor. There is no need to enter the chute to perform this task, but the technician will be required to release the lockscrews to the mainframe and may be exposed to a twisting hazard if the blades are impacted by a moving belt or material load. Leave the safety mesh screen in place on the CYA door if present. Release the air pressure by closing the isolating valve in the control box. Release the lockscrews securing the Operating Arm to the mainframe. Caution: For single tensioner cleaners, the mainframe may rotate sharply keep fingers clear. On dual tensioner cleaners, the opposite side tensioner will hold the mainframe in place. An assistant may be required for this step. Using a pipe wrench or similar, rotate the mainframe until the blades touch the belt, and hold in that position. Fully compress the air bag, and secure the lockscrews in the Operating Arm onto the mainframe while the air bag is compressed. Release the mainframe. Revision M 20 07/07/2015

21 For dual tensioner cleaners, repeat for the other side. Turn on the air supply and adjust the pressure as described in section 6. Remove locks or tags and return the belt to service. Observe the cleaner in operation, then replace the access door cover. 7.3 Blade Replacement Step 1: Step 2: Step 3: Step 5: Step 6: Step 7: Step 8: Step 8: Shut down and lock out the conveyor. Never try to replace the Blades on a PV Primary Cleaner with the conveyor running. Severe injury or death can result from contact with a moving conveyor belt. Release the tension and back blades away from the belt. For the Spring Tensioner, release the adjusting nut. For the Air Tensioner, close the isolation valve for the cleaner in the air control box. Remove the safety screen to access the cleaner. Remove the cleaner blade by removing the lock pin and withdrawing the blade from the mainframe. Clean and inspect the blade if worn excessively or otherwise damaged, replace with new blade. Re-install (new) blade onto cleaner, followed by lock pin. If the tensioner setting prevents the new blade from fitting to the belt, reset the tensioner by reversing the procedure in the previous sub-sections 7.1 or 7.2. Re-tension cleaner onto the belt as previously described in the Tensioners section 6. Remove all tools or debris from belt. Replace all access screens and guards. Remove locks or tags and restart belt. Observe cleaner action and blade effectiveness. Replace CYA Door rubber cover if installed. Clean up work area. Revision M 21 07/07/2015

22 SECTION 8 - COMMISSIONING Step 1: Step 2: Step 3: Step 4: Step 5: Step 6: Perform Installation Check. Double check the items in previous sections safety, preparation, installation. Check that the cleaner is installed to specification, all fasteners have been securely tightened, and the tensioners adjusted to the correct settings. Is the belt empty? Make sure there are no foreign objects such as tools or clean-up debris left on the belt. They may damage the belt cleaners or the conveyor systems. Load material on the conveyor. If possible, test run conveyor with material on the belt. This helps to quickly wear in the blade and reduce the initial friction between the belt and the blade. The belt may also be moistened with water. Start the conveyor. Ensure first that all screens and safety barriers are in place. Allow only visual access to the cleaner blade, ensuring that no person can enter or reach into the conveyor enclosure. Follow all safety procedures before starting the conveyor. Observe the cleaning action. Observe the action of the cleaner. Look for areas where the blade is not touching the belt. The blade tip should be in uniform contact with the belt and peeling material from the belt. Run for several belt rotations to appraise the action and effect of the splices on the belt cleaner. Check the Tensioner Setting. Refer to previous section 6 Operation of Tensioner. After running, check and reset (if necessary) the cleaner tensioner setting. Initial running and beddingin can loosen parts and reduce the tensioner loading. Do not over-tension - excessive pressure unnecessarily reduces the life of the blade, without any increase in the cleaner effectiveness. Revision M 22 07/07/2015

23 SECTION 9 - OPERATOR TRAINING The decision to purchase the PV Primary Belt Cleaner is a major step toward the realisation of a clean plant. The next step is to train personnel to maintain and service the equipment (or employ ESS to maintain the belt cleaning equipment) so that it continues to operate at optimum efficiency. The benefits of efficient cleaners outweigh the cost of maintaining the cleaners many times over.if you wish to have your cleaning system maintained for you contact ESS. If not, train your own personnel as follows; 1. Ensure that personnel working around conveyors are thoroughly trained to recognise existing and potential hazards involved, and that a Job Safety Analysis is conducted to identify and control those hazards. 2. Ensure personnel are trained in correct equipment isolation and lock-out procedures. 3. Ensure that personnel have all required safety equipment and are thoroughly trained in the use of that equipment. 4. Ensure that all appropriate permits are in place, and that personnel involved are qualified to undertake the required work. 5. Provide the trainee with a copy of this manual and ensure that they read and understand the contents. 6. Provide the trainee with all relevant conveyor data, such as belt speed, width and material handled, and ensure that they understand the required belt cleaner settings and adjustments that pertain to the conveyor. 7. Instruct the trainee to look for problems existing or developing in the belt cleaning system, such as increasing carryback, irregular or excessive blade wear, blade vibration and the like. Encourage them to safely observe and try to determine the cause of the problem. 8. Ensure that the trainee is given hands-on instruction in maintenance procedures during down-time, in the company of an experienced service technician. 9. Ensure that the trainee is provided additional support and instruction at regular future intervals to ensure that all information has been understood and retained. 10. Encourage the trainee to look for and report other problems developing on the conveyor system such as excessive belt tracking, belt damage, seized idlers, missing bolts and the like. Revision M 23 07/07/2015

24 SECTION 10 - TROUBLE SHOOTING PROBLEM - Blade folds through on start-up. CAUSE Incorrect installation dimensions Excessive tension Belt running dry Poor belt condition SOLUTION Relocate mounts so that the shaft is 75mm radial from the belt face on the head pulley Relax blade tension to maximum tension recommended in installation instructions Always place material on the belt for start-up or a little water if material is unavailable Repair belt, dress spices to smooth contour PROBLEM - Mainframe bent. CAUSE SOLUTION Mainframe undersized Stiffened mainframe required. Contact ESS for assistance Excessive tension Relax blade tension to maximum tension recommended in installation instructions Blade folded through See above Material build-up between blade / mainframe and belt Normal deflection Increase frequency of inspection and service. Add water spray if possible. A small amount of deflection is considered normal. Contact ESS if excessive deflection occurs PROBLEM - Higher blade wear rate than estimated. CAUSE Cleaner over-tensioned Incorrect blade material SOLUTION Tension cleaner enough to clean the belt only Contact ESS for re-appraisal PROBLEM - Insufficient cleaning - too much carryback. CAUSE Cleaner under-tensioned Build-up on blade Cleaner overloaded Secondary cleaner not functioning correctly SOLUTION Re-tension cleaner Rap blade against belt. Increase service frequency and add water spray if possible. Add additional secondary cleaner Service the secondary cleaner Revision M 24 07/07/2015

25 SECTION 11 ARRANGEMENT DRAWING? Revision M 25 07/07/2015

26 ? Revision M 26 07/07/2015

27 SECTION 12 SPARE PARTS Spring Tensioner version & Figure 10 PV38108 Cleaner and Spring Tensioner Parts Item Description No. Part Number Req d 1 PV Mainframe XXX 2 PV Blade Orange XXX 3 PV Blade Retaining Lock Pin Flex Mount c/w fasteners Flex Bush Spring Tensioner Anchor Plate 1 (2) Spring Tensioner Adjusting Rod c/w Nuts 1 (2) Spring Tensioner Operating Arm c/w screws 1 (2) Spring Tensioner Spring 1 (2) Lock Collar 1 (0) Notes : 1. Items 1 and 2 Part Number XXX denotes belt width in cm. Example: for 750 belt, use Items 1,4,6,7,8,10. Add S suffix to part number for stainless steel. 3. Item 5 is available in a number of materials contact ESS for further details. 4. Cleaners for belts over 1500 wide use dual tensioners. Items 3-10 show quantities for dual tensioners in brackets. Revision M 27 07/07/2015

28 12.2 Optional Air Tensioner Figure 11 Air Tensioner Parts Item Description No. Part Number Req d 1 Flex Mount c/w Fasteners Flex Bush Air Tensioner Bracket 1 (2) Lock Collar 1 (0) Operating Arm c/w Screws 1 (2) Travel Stop Rod c/w Fasteners 1 (2) Air Bag Bracket 1 (2) Stop Bracket 1 (2) Air Bag Goodyear 1B (2) Screw 3/8 UNF x 1 Socket Head Cap 4 (8) Notes : 1. Items 1,3,4,5,6,7,8,10. Add S suffix to part number for stainless steel. 2. Item 2 is available in a number of materials contact ESS for further details. 3. Cleaners for belts over 1500 wide use dual tensioners. Items 3-10 show quantities for dual tensioners in brackets. Revision M 28 07/07/2015

29 SECTION 13 FINAL CHECKLIST Site: Number: Date: Site Equipment No./Location: Completed By: Site Contact: (Circle Yes or No Below) 1. Was equipment to ESS Specification? Yes/No Drawing No. Ref: Attached? Yes/No If No, WHY Will this affect performance? Yes/No If Yes, WHY 2. Was this a standard service inspection installation? Yes/No If No, WHY 3. Was work carried out as per procedure and JSA? Yes/No If No, WHY 4. Is equipment fit for commissioning? Yes/No If No, WHY 5. Was a final inspection carried out while plant was running? Yes/No If No, WHY 6. Has anything changed from previous service / inspection / installation? Yes/No If Yes, WHAT 7. Is equipment performance to Client expectations? Yes/No If No, WHY ESS Signature: Client Signature: Revision M 29 07/07/2015