RC33 Service Manual - argus realcold pty limited
Contents
1. Pneumatic Wool Shear A INSTRUCTION MANUAL C Imported by Designation Model No Type Length Height Width Weight Pneumatic Circuit Air Consumption Oil Shearing head Air motor Grease Serial No Checked Date Manutfacture Date Manufactured By Licensed distributor Specifications Pneumatic Wool Shear RC33 1100 C Supplied 315mm 95mm 72mm 1 53Kg 6 5 7 85Bar 90 110Psi 453Lm 16Cfm 6 5Bar 90Psi Mobil BP 85 or equivalent Mobil DT FM 32 or equivalent Mobil grease FM 102 or equivalent Argus Realcold Ltd PO Box 12 519 9 Prescott Street Penrose Auckland New Zealand Ph 64 9 526 5757 Fax 4649 526 5755 TABLE OF CONTENTS SAFETY INSTRUCTIONS 1 NOTICE TO OPERATORS 2 INSTRUCTIONS FOR COMMISSIONING 3 SERVICE SECTION 4 PRINCIPLE OF OPERATION 4 Cutting Cycle 4 SERVICING 5 Hand tool Disassembly 5 Shearing Head 6 Disassembly 6 Servicing 7 Reassembly 8 Air Motor 10 General instructions 10 Disassembly 10 Servicing 11 Reassembly 12 Reassembly 15 APPENDIX 1 16 Parts Diagram RC33 1100 17 Parts Diagram Shearing Head 18 Parts Diagram Pneumatic Motor 19 Parts Diagram Pneumatic Motor Subassembly 20 Order Form 21 APPENDIX 2 22 Maintenance 23 Check Daily 23 Check Weekly 24 Routine Maintenance 25 APPENDIX 3 26 Recommended Spare Parts 27 APPENDIX 4 28 Circuit Schematic 29 WARGUS N REALCOLD LIMITED Argus Realcold Ltd PO Box 12 519 9 Pr2. Y31dNO09 SAIN V L c9S 61L 081 L L NOILdlI3oS3g ON LYVd ALO ON WAL ALATdNOD GVAH ONIYVAHS 00Z LLZ 00Z C STT GQtTooa TAN S119 do VAV MAYOS ONIYdS NIT 4CL LLL OLC C LZ M3 Y9S YSAO9 qV3H 9ZZ 442 0 Z C 0C ONIYVAE 3 TGNIdS GcL L1L 2 012 C 6L 3AOOD qV3H 9NINV3HS VoL LLL 012 k 84 3A31S LAN NOISN31 ecLZ LLLZ O12 Lk ZL JInNIAnaolnd CCL LLL OLE Lk 94 LNN NOISN31 ZZ 44Z 0 Z L SL Ol L3IN SA 3 19S SINOO OZZ 442 0 Z C tk JSodIAnaolnd 61L LLL 0OLC L eb YOldVav LAN NOISNAL 8LL ZL 2 012 L cl ONIYdS LAN NOISNAL ZLL ZLL 012 L LL TIV9 ANVYO QLLZ ZLL O12 L OL gJIANIdS MNVYO GLL LL 2 012 L 6 LYOddNS MYOSs ELZ ZLL O12 L 8 ONIYdS MNIT NOISNAL 602 212 012 L Z NISNOH qV3H YVASHS 80Z L12 012 L 9 LH9I yaHod LZOZ ZL 2 012 L 9 1331 yaHod 902 212 012 L r Yad 10H MYOS LOZ ZL 2 012 L 8 9NOOD q3Xld 02O vL 2 012 L C david SNIAON 0L0 rLZ 0L L L NOI Ldl 3OS3GQ ON LYVd ALO ON WALI HOLOWN DILVINNANd 3115S 06L tial L PN PT GTO 3 T S 1 3 SNH VAV M3Y9S YANIVLAY 44 00 YMM 06 L L Le Nid ONINIVLSY YAAO9 oS l Ncuy 06 L 9 lt TIV9 dA IVA 31LLOtH1L S9 1095 06 L L Ge Was Y43409 6S Y tYH 06 H L ve ONIY O AGO SATIVA Z91 HS8 061 C Ez AGO8 YOLOW 0r8 M1dS 06 L CC AGO8 dA IVA 3111OdH1 6ceg 149 06 L L Le JLY 1d ONINIVLAY Z99 1dS
3. and for loose components Check all fasteners for tightness Anything that you find at this stage must be remedied immediately Disassemble the shearing head as per the instructions for disassembly Thoroughly clean the head housing blades fork holder and forks Look particularly for wool wrapped around the spindle as this can damage the seal on the front crank spindle bearing Check the spindle bearings for roughness If they are at all rough then replace them Check the blades for sharpness or edge damage If any teeth are missing from the fixed comb then replace it Should they be dull or damaged then have them sharpened Reassemble the shearing head lubricate the blades and crank ball See the service section for full instructions Remove the muffler packing and wash it Every second week inject no more than 2 0cc of grease into the grease fitting Too much grease will reduce power and cause the gears to overheat Wipe off excess oil or grease before returning the hand tool to service 10 Reconnect the hand tool and check that all couplers and fittings are tight 11 Turn on the air supply and test for correct operation Set the blade tension as per the instructions in the reassembly section These checks are to be performed on a weekly basis or approximately every 40 hours of service where more than one shift operates each day 24 Routine Maintenance Except where daily or weekly che
4. secure Install the throttle valve plunger into the top of the throttle valve Apply O ring lubricant to the valve body O rings Push the throttle valve about two thirds of the way into the motor body and then place the retaining plate carefully into its groove Make sure that the screw hole is aligned with the hole in the throttle valve cover Push the valve the rest of the way into the motor body and secure it with the retainer screw Take the rotor and install the rear end cover over the short rear shaft Make sure that the circular recess is facing the shaft side of the rotor Install the c clip to retain Mount the rotor into the vice vertically by the short rear shaft Use soft jaws to prevent damage Inject a couple of drops of air tool oil into each vane slot Insert a vane into each slot Place the cylinder front end up over the rotor and onto the rear end cover To determine which end of the cylinder is the front end hold the cylinder horizontally facing one end Position the external groove for the dowel at the top If the air ports through the cylinder wall are in the lower right quadrant then you are facing the front of the cylinder Be sure to install the cylinder properly The motor will not operate properly if the cylinder is inverted Slip the front cover over the rotor shaft with the circular recess facing upward Work enough grease into the front rotor bearing to coat the balls and races Press the fr
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7. Make sure that the cylinder dowel is properly seated into the dowel hole When it is in the proper position it will protrude about 2 3mm above the face of the bearing carrier If it is not located properly it will protrude about 5 5mm Make sure that the bevelled ring is in place on the shaft of the spindle Install the O ring seal over the spindle shaft and against the bevelled face Place the grease shield over the shaft and against the O ring Install the spindle bearing over the spindle shaft Firmly support the spindle and press the bearing into place Take care to keep the grease shield and O ring seal in place and properly aligned Apply a coating of grease to the inside of the ring gear the planet gears planet gear shafts and to the bearing surfaces of the spindle Slide the ring gear into the motor housing Make sure that the cylinder dowel enters the notch in the end face of the ring gear Slide a planet gear onto each of the spindles three gear shafts Slide the assembly into the ring gear and into engagement with the rotor pinion Make sure that the bearing plate is in place before installing the spindle Screw the drive coupler all the way onto the spindle and tighten the two locking grub screws to secure 13 14 15 Screw the adapter onto the motor body and hand tighten Connect the motor to an air supply and test for smooth operation Clamp the motor back into the vice and mount the shearing head Le
8. a minimum recommendation for parts to support one unit in the field Where more than one tool is in service quantities held in stock should be adjusted accordingly Qty Part Number Description 1 180 319 562 1 A DRIVE COUPLER 1 180 319 562 2 A DRIVE COUPLER TAPPED 2 180 748 156 DRIVE COUPLER BUSH 190 5LK 3 CYLINDER x 2 1 5 190 5RLK 739 GASKET 2 2 2 2 190 R1401 425 ROTOR VANE PKT 5 MOVING BLADE a ON C O 2 210 717 716 CRANK BALL 210 717 717 TENSION NUT SPRING 210 717 720 COMB SCREWS METRIC 2 210 717 722 FULCRUM NUT 210 717 724 SHEARING HEAD COVER 210 717 725 SPINDLE BEARING 210 717 726 HEAD COVER SCREW WARGUS N REALCOLD LIMITED Argus Realcold Ltd PO Box 12 519 9 Prescott Street Penrose Auckland New Zealand Phone 64 9 526 5757 Fax 64 9 526 5755 Email argord realcold co nz www argus co nz 27 Appendix 4 Circuit Diagram WARGUS N REALCOLD LIMITED Argus Realcold Ltd PO Box 12 519 9 Prescott Street Penrose Auckland New Zealand Phone 64 9 526 5757 Fax 64 9 526 5755 Email argord realcold co nz www argus co nz 28 T4O T 1sdHS TTJV ANYd WOD IHL 4O 1N3SN OO NALAM 3HL 1 JnOHUAALVd GaHIHL ANY QL NO dassWd NOILOAYIG INO YHOLOW OILVIINANd S Del D EE De SLN3LNO O JHL YO CaldO9 38 LON ISAW wwo ASOH 3HOLS 413S v EV onywa ENA vo GL C1001134 SN DYW 40 ALdad Old e 5 JHLSILNIWN DOQ SIHL IH DNAd OD SNI 1d 1O9 eae gt EE DY ee SNISOU N s dV
9. and then tighten it a further 1 4 turn Operate the wool shear Slacken off the tension nut until the shearing blades exert almost no more contact pressure You will notice the noise level rise Now tighten the tension nut until the noise level becomes muffled and some resistance is detectable as you tighten the tension nut The tension should now be correctly set If the wool shear does not cut properly then add a little more tension Note Excessive tension will cause the link spring to fail Check the parts container and bench for any missing parts now Your RC33 wool shear is now ready to be returned to service Reinstall as per installation instructions at the front of the manual and test for correct operation 15 Appendix 1 Parts Diagram and Ordering Form WARGUS N REALCOLD LIMITED Argus Realcold Ltd PO Box 12 519 9 Prescott Street Penrose Auckland New Zealand Phone 64 9 526 5757 Fax 64 9 526 5755 Email argord realcold co nz www argus co nz JV3HS 100M SILVINNANd OOLL e90u SSL 1A TI oooavauYV SNH VAV YOE PW YAHSVM ONIYdS VOE VINMS 008 C OL YsHSVM LV 14 VN vOe vINM4 008 C 6 YOE 9cxyAN MAYOS dVO vOE SCVINSD 008 C 8 3SOH SYOLS ATAS WwW0OL 8c70001 LENZO 008 L Z 313TdINOS GVSH NIYYJHS 002 212 002 L 9 YOLOW SILVINNANd gt 1S 061 L S 3LdVQV V L409688 061 L v HSng Y31dNO09 JAYA 994 872 084 L d3ddY1 Y31dNOD INYA VY Z Z99 6L 084 L C
10. ave out the drive coupler bush at this stage and tighten the cap screws Use a large adjustable spanner across the flat sides of the shearing head to tighten the adapter onto the motor Remove the shearing head when tight 14 Reassembly 1 7 1 7 2 7 3 7 4 Lightly clamp the motor body in a vice with the spindle end up Make sure to clamp the body near the throttle valve to prevent the housing from rotating in the vice Install the drive coupler bush onto place onto one of the drive couplers Take the shearing head and hold it above the motor Turn it until the drive coupler is aligned with the drive coupler bush and push it into place against the adapter Insert the two cap screws with their spring and flat washers in place through the mounting holes and screw them into the adapter collar Do not tighten them fully yet Rotate the shearing head until it is properly aligned with the motor This can be positioned according to operator preference Tighten the two cap screws fully now Apply a little thread sealer to the fitting on the long end of the self store hose and screw it into the air inlet fitting Connect the tool to an air supply and run it Make sure that the blades and crank head have been oiled Adjust the blade tension as follows With the machine turned off check that the moving blade is properly positioned on the forks conic pins Tighten the tension nut until resistance is first noticeable
11. cks require replacement of wear items the hand tool should be fully stripped and serviced once every six months Wear items that should be replaced at this six month service are 210 717 709 Tension link spring 210 717 716 Crank ball 210 717 725 Spindle bearing 190 R1401 42 5 Rotor vane packet of 5 All other components should be assessed for serviceability at this time and replaced as necessary as per the servicing instructions in the service section of this manual Other factors which may necessitate a full service prior to this six month interval include but are not limited to e Excessive water in the air supply e Blades damaged e Other damage caused by dropping or striking of the tool Following the discovery of any of these occurrences the hand tool must be removed from service stripped and thoroughly assessed for damage 25 Appendix 3 Recommended Spare Parts WARGUS V REALCOLD LIMITED Argus Realcold Ltd PO Box 12 519 9 Prescott Street Penrose Auckland New Zealand Phone 64 9 526 5757 Fax 64 9 526 5755 Email argord realcold co nz www argus co nz 26 Recommended Spare Parts The following is a list of spare parts that we recommend your engineering department to keep in stock at all times Having these parts on hand will assist you to maintain your tool in good working order and ensure that you avoid down time while waiting for parts delivery should your hand tool require repair This list is
12. d Look particularly for wool wrapped around the spindle as this can damage the seal on the front crank spindle bearing Check the blades for sharpness or edge damage If any teeth are missing from the fixed comb then replace it Should they be dull or damaged then have them sharpened Loosen the tension nut and remove the moving blade Clean any wool or build up from the blades and the lubrication groove Apply oil to the blades and refit the moving blade Apply four or five drops of oil to the crank ball from above the fork holder Reinstall the shearing head cover Unless an airline oiler is used inject 1 5cc of air tool oil into the air inlet of the motor Reconnect the wool shear and check that all couplers and fittings are tight Turn on the air supply and test for correct operation Set the blade tension as per the instructions in the reassembly section These checks are to be performed on a daily basis or prior to the start of each shift where more than one shift operates each day Important During normal operation oil must be applied to the blades and the crank head at about fifteen minute intervals Apply two or three drops of oil to the blades and two or three drops of oil through the hole on the shearing head cover to the crank head 23 Check Weekly This maintenance is best performed in the workshop 1 9 Visually inspect the hand tool for any obvious damage to components
13. d help prevent distortion This is particularly true of threaded parts and housings Do not remove any part that is a press fit in or on a subassembly unless removal of that part is necessary for repairs or replacement Do not disassemble the tool unless you have a complete set of new gaskets and O rings for replacement Disassembly 1 5 1 5 2 5 3 5 4 6 1 6 2 6 3 Lightly clamp the motor body in a vice with the spindle end up Make sure to clamp the body near the throttle valve to prevent the housing from rotating in the vice Mount the shearing head to the adapter and tighten Using a large adjustable spanner across the flat sides of the housing loosen the adapter by unscrewing it counter clockwise Make sure that the motor spindle is facing upward as the adapter is all that retains the planet gear assembly Carefully withdraw the planet gear assembly from the housing and put it into the parts container Except for the moderate press fit of the spindle bearing on the spindle all gearing parts are free fitting and will easily slide apart Loosen the two grub screws securing the drive coupler to the spindle and unscrew it counter clockwise Put it into the parts container Carefully withdraw the motor assembly from the housing Remove the end plate gasket from the housing Remove the bearing plate and put it into the parts container Remove the c clip and the rear end cover Remove the dowel cylind
14. e flat side of the spindle Thoroughly clean all parts Check the crank ball for rust or damage to the chrome surface If it is at all damaged then replace it Check the fork holder for wear or damage Look particularly in the bore and at the tip of the conic section If it is worn or damaged then replace it Check the tension link spring for cracks or other damage Make sure that the plastic bearing holder at the end is securely in place and that the tags at the front are not bent or deformed If it is damaged then replace it Check the tension sleeve and the tension nut adapter for wear or damage If they are worn or damaged then replace them Clean off any surface rust with some fine 240grit or finer wet or dry sand paper Clean the threads of the adapter thoroughly with solvent Check the blades for sharpness or edge damage If any teeth are missing from the fixed comb then replace it Should they be dull or damaged then have them sharpened Note Proper resharpening can only be performed on a special machine by a trained technician Do not sharpen these blades yourself Reassembly 1 10 11 Apply a small amount of blue Loctite 243 to the threads of the tension nut adapter and screw it into the head housing Tighten with an adjustable spanner Take the fork holder and mount the fork support onto the pin Insert the forks into the fork support and into their locating holes Make sure that the conic pins are t
15. er and rotor vanes Use a press to push the rotor from the front rotor bearing Loosen and remove the retainer screw from the throttle valve Withdraw the throttle mechanism from the housing Before proceeding further place an index mark on the throttle valve body and throttle valve cover to assure their same relative position when reassembling It is possible to change the orientation 180 If this occurs the tool will not run Push the cover retaining pin from the throttle valve cover and separate the cover from the throttle valve body Be careful not to lose the other throttle components Withdraw the throttle valve seat from the valve body 10 Servicing 1 2 Clean all parts thoroughly Check all bearings for roughness If rough then replace them Don t forget to check the rear rotor bearing inside the housing Work grease thoroughly into every open bearing before reassembly Do not clean sealed bearings Check the seals or grease shields on sealed bearings for damage If the seal or shield is damaged then replace the bearing Check the cylinder for scoring of the bore If the cylinder is badly scored then replace it Excessive scoring can indicate water in the air supply Check the rotor vanes for wear A new vane measures 7 9mm wide Check the sides of the vane for wear also Worn grooves along the sides of the vane can cause the vane to stick in the rotor preventing the motor from running properly Check
16. escott Street Penrose Auckland New Zealand Phone 64 9 526 5757 Fax 64 9 526 5755 Email argord realcold co nz www argus co nz Issue Date 25 2 2005 Revision Number 2 0 Revision Date 3 5 2006 SAFETY INSTRUCTIONS FOR REALCOLD HAND TOOLS As a designer manufacturer and supplier of plant and equipment Argus Realcold Ltd has provided plant equipment and all relevant information to ensure the safe use in accordance with the New Zealand Health and Safety in employment Act 1992 The CE marked machines provided by Argus Realcold Ltd also meet the EC machinery directive 98 37 EC and any other relevant EC directive It is the responsibility of the owner to ensure that the machine is used safely in accordance with the instructions and for the purpose that the machine was designed for The hand tools that we supply with the exception of the RC33 are designed for two handed operation and include the following RC20 Sheep Light Duty Scissor RC21 Sheep Hock Cutter Various blade options available RC22 Hydraulic Sheep Hock Horn Neck Cutter RC25 Hydraulic Heavy Duty Sheep Goat Deer Hock Horn Cutter RC30 Hydraulic Beef Hock Horn Cutter Hog Head Cutter Various blade options available RC31 Pneumatic Sheep amp Lamb Brisket Opener RC33 Pneumatic Wool Shear RC35 Hydraulic Beef Loin Head Cutter Various blade options RC45 Hydraulic Heavy Duty Beef Horn Cutter RC50 Air Oil Intensifier WARGUS N REALCOLD LIMITED Argus Realcold L
17. ete SERVICING Before any servicing is attempted on this tool disconnect and unplug from air supply All air supply hoses must be disconnected to render the tool inoperative according to Occupational Safety amp Health requirement Hand tool Disassembly Before starting please make sure that the tool is clean and that you have a suitable work area available A container will help prevent small parts from being lost or damaged 1 Place the tool on a bench 2 Unscrew the self store air hose from the inlet fitting on the motor Use a second spanner to hold the inlet fitting so that it is not loosened or removed at this time Put it aside on the bench 3 Loosen and remove the two 4mm screws securing the shearing head to the adapter Put them into the parts container and the shearing head to one side on the bench Do not remove the adapter at this time as it is holding the motor components secure Your RC33 wool shear is now disassembled ready for inspection and servicing Shearing Head Disassembly 1 2 3 Loosen the tension nut and remove it Remove the moving blade and put it into the parts container Loosen the two screws securing the fixed comb to the head and remove it Put it into the parts container along with the two screws Loosen and remove the two screws securing the head cover Put the head cover into the parts container along with the two screws Loosen and remove the fulcrum nut from the fulcrum p
18. itute parts or use other than genuine Argus Realcold brand parts Use extreme care when testing or operating the tool WARGUS N REALCOLD LIMITED Argus Realcold Ltd PO Box 12 519 9 Prescott Street Penrose Auckland New Zealand Phone 64 9 526 5757 Fax 64 9 526 5755 Email argord realcold co nz www argus co nz RC33 PNEUMATIC WOOL SHEAR INSTRUCTIONS FOR COMMISSIONING 1 Install a female compressed air connection near the workstation in an appropriate position to ensure ease of operation for the tool A water trap with an auto drain should be installed along with an automatic oiler to ensure long life of the air motor Note Water in the air supply will cause severe motor damage very quickly 2 Install a male compressed air connection to the free end of the hand tool self store hose 3 Connect the air hose to the coupler at the workstation 4 Run the wool shear and adjust the blade tension as per the instructions in the service section Apply oil to the blades at this time also 5 Install a pressure gauge between the female compressed air connection and the hand tool male connection Run the hand tool again and observe the air pressure on the gauge You will see a pressure drop Air pressure with the hand tool not running should be between 6Bar 90Psi and 7 4Bar 110Psi Pressure should not drop by more than 1Bar 15Psi when the hand tool is operated Note A pressure drop of more than 1Bar 15Psi indicate
19. n Qi Part Number Description O i C j C s C i j C II LT a a a x x x x a 5 a a a S j a x i C j C j OC O C s r Shipping Instructions Ship to Address Attention Level of Urgency Normal O Urgent C 21 Appendix 2 Maintenance WARGUS N REALCOLD LIMITED Argus Realcold Ltd PO Box 12 519 9 Prescott Street Penrose Auckland New Zealand Phone 64 9 526 5757 Fax 64 9 526 5755 Email argord realcold co nz www argus co nz 22 Maintenance Please read this section thoroughly and make sure that these maintenance checks are carried out routinely as specified Adherence to this maintenance schedule will ensure that you enjoy long and trouble free service from your hand tool Before any servicing is attempted on this tool disconnect and unplug from air supply All hydraulic hoses and air supply hoses must be disconnected to render the tool inoperative according to Occupational Safety amp Health requirement Check Daily 1 2 Clean the hand tool thoroughly before inspecting Visually inspect the hand tool for any obvious damage to components and for loose components Anything that you find at this stage must be remedied immediately The hand tool may need to be removed from service to affect remedy Unscrew the shearing head cover and remove any build up of wool and hair that you fin
20. n newly ground shearing blades will not shear satisfactorily Place the moving blade onto the forks conic pins and apply a few drops of oil to the ground face Push the new fixed comb between the loosened screws Now tighten the comb screws until you can just move the fixed comb sideways by hand Turn the shearing head over again so that the tension nut is uppermost Adjust the blades against each other so that the ground surface of the fixed comb projects approx 1 5 2 0 mm beyond the tips of the moving blade Once the blades are adjusted tighten the comb screws 12 13 14 15 Check that the moving blade is properly positioned on the forks conic pins Tighten the tension nut until the moving blade is pressed against the fixed comb and a slight resistance is felt Apply a few drops o oil to the crank ball and blades Rotate the drive coupler by hand to distribute the oil over the contacting surfaces Refit the shearing head cover and secure with the two cover screws The shearing head is now ready to be returned to service Note that final tensioning of the blades will not be completed until after final reassembly and running of the wool shear Air Motor General instructions 1 Do not disassemble the tool any further than necessary to replace or repair damaged parts Whenever grasping a tool or part in a vice always use leather covered or copper covered vice jaws to protect the surface of the part an
21. ont rotor bearing into the bearing carrier with the sealed face of the bearing flush with one side of the housing Slide the bearing and housing sealed side first onto the shaft Now slide the bearing plate over the shaft 12 9 1 9 2 10 11 12 13 Lightly clamp the motor body in a vice with the spindle end up Make sure to clamp the body near the throttle valve to prevent the housing from rotating in the vice Push some grease into the rear rotor bearing Install the gasket into the motor body positioning the gasket smoothly in the bottom of the bore Make sure that the dowel notch in the gasket is aligned with the dowel hole in the housing Take a piece of 2 3mm diameter steel rod about 250mm long to use as an assembly guide Take the motor subassembly and align the dowel grooves in the rear end cover cylinder and front cover with the dowel hole in the bearing carrier Insert the assembly guide dowel into the bearing carrier hole and lay it into the dowel grooves of the other components Insert the end of the assembly guide dowel into the dowel hole inside the motor body Carefully slide the motor subassembly along the guide and into the housing The motor subassembly is a sliding fit in the motor body It will enter into the motor body with only slight pressure being applied Do not drive or otherwise force the motor into place Remove the assembly guide dowel and replace it with the cylinder dowel
22. ost Loosen and remove the fulcrum post from the head body Put it into the parts container along with the fulcrum nut Remove the tension nut spring and put it into the parts container Push the fork holder upward to expose the tension nut sleeve Grasp the sleeve and pull it from the tension nut adapter Use an adjustable spanner to remove the tension nut adapter Put them into the parts container Pull the fork holder downward again and forward to release the crank ball from the spindle The fork holder can now be rotated out of the shearing head Be careful to retain the crank ball as it can easily fall from the holder and be lost Loosen and remove the two screws securing the tension link spring to the fork holder The forks and fork support can now be removed Servicing 1 1 1 1 2 1 3 1 4 1 5 1 6 Rotate the crank spindle by hand If the bearings feel rough then they must be replaced To replace the bearings Loosen the two grub screws securing the drive coupler to the spindle and remove it Carefully press the spindle from the housing Press the spindle out of the bearing and the remaining bearing from the housing Clean the housing and the spindle thoroughly Install new bearings into the housing Use a press to push the spindle through the new bearings Mount the drive coupler onto the spindle and tighten the two grub screws to secure Make sure that one of the grub screws engages against th
23. owards the outside of the holder Take the tension link spring and mount it to the bottom of the fork holder Make sure that the tags are seated into the locating grooves of the fork support before tightening the screws Take the crank ball and drop it into the fork holder Align the bore of the crank ball with the slot in the back of the fork holder Insert the conic section of the fork holder into the tension nut adapter from inside the head housing Carefully rotate it until the tension link spring is aligned with the fulcrum hole Push it back sliding the crank ball onto the crank spindle as you do so Screw the fulcrum post into the bottom of the head housing through the bearing on the tension link spring until it is firmly seated Screw the fulcrum nut over the fulcrum post and tighten Take the tension nut spring and install it onto the tension nut adapter Make sure that the spring runs clockwise toward its free end Apply a little oil to the tension nut sleeve Insert it into the tension nut adapter over the conic section of the fork holder Screw the tension nut onto the adapter until it is within 1mm of the tension nut spring Turn the shearing head over and screw the comb screws into their holes Make sure that they are far enough out to be able to slide the fixed comb into position Ensure that the shearing blades are clean Particular care should be taken to ensure that the ground surfaces are free of dirt If not eve
24. s that there is insufficient air supply volume This must be corrected to ensure satisfactory operation of the wool shear 6 Remove the pressure gauge from the coupling and reconnect the wool shear Your RC33 Wool shear is now ready for service WARGUS N REALCOLD LIMITED Argus Realcold Ltd PO Box 12 519 9 Prescott Street Penrose Auckland New Zealand Phone 64 9 526 5757 Fax 64 9 526 5755 Email argord realcold co nz www argus co nz SERVICE SECTION Before servicing this tool it is important to understand how this tool operates While being very simple understanding the principles of operation and their interaction will assist you to maintain the tool to optimum working efficiency Fault diagnosis and repair will also be greatly simplified PRINCIPLE OF OPERATION Cutting Cycle Operating lever is depressed supplying air pressure to the air motor of the RC33 wool shear The air pressure acts on the rotor vanes in the motor and causes the rotor to rotate The rotation of the rotor is transmitted to the shearing head crank spindle via a planetary gear set and coupler The rotation of the crank spindle causes the fork holder to move across the shearing head and back again The moving blade is moved across the face of the fixed comb and cuts any wool or hair in its path The operating lever is released and air pressure is removed from the air motor causing it to stop rotating The operating cycle is now compl
25. td PO Box 12 519 9 Prescott Street Penrose Auckland New Zealand Phone 64 9 526 5757 Fax 64 9 526 5755 Email argord realcold co nz www argus co nz NOTICE TO OPERATORS MAINTENANCE AND CLEAN UP PERSONNEL OPERATORS Stop using a defective or malfunctioning tool immediately Report the STOP problem or defect immediately to your supervisor for removal of tool from service Do not attempt to make repairs yourself do not tamper with a defective or malfunctioning tool Do not attempt to free a jammed or blocked tool yourself Remove power from the tool when the tool is left unattended or is not in use Never tie down bypass or alter the triggers or safety switches of the tool Do not activate switches of the tool unless you intend to operate and use the tool Do not allow unauthorised individuals to operate the tool Never place fingers hands or other parts of your body in the cutting path of the tool Do not use this tool on people A This tool is capable of causing severe injury if misused CLEAN UP PERSONNEL Shut off all power and disconnect all hydraulic and air hoses from the tool before performing clean up A Take extreme care near sharp blades MAINTENANCE PERSONNEL Shut off all power and disconnect all hydraulic and air hoses from the tool before making repairs performing maintenance and before replacing or sharpening blades Wear safety glasses when operating this tool Do not use subst
26. the gear shaft of the rotor for wear If it is worn then replace it along with the planet gears Check all O rings and the throttle valve seat for wear or damage If any wear or damage is present then replace them Check the throttle valve ball for rust or damage to the chrome finish If it is damaged then replace it Loosen and remove the inlet fitting Remove the silencer and muffler packing Wash the muffler packing out with a mild solvent and use compressed air to blow it dry Reassemble the packing to the silencer and reinstall to the rear of the motor body Apply a little thread sealant to the air inlet fitting and install it through the silencer to secure Apply a thin coating of air tool oil to all remaining parts before reassembling the tool 11 Reassembly 1 1 1 1 2 1 3 1 4 1 5 2 1 2 2 2 3 Install new O rings to the throttle valve body Holding the valve body upside down install the throttle valve seat into the valve body Insert the throttle valve ball into the throttle valve body followed by the throttle valve spring Make sure that the small diameter end of the conic spring is against the valve ball Install the cover seal onto the throttle valve cover Apply a little O ring lubricant to the seal Line up the index marks that you applied during disassembly and push the throttle valve cover into place Align the retaining hole and push the cover retaining pin into place to
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