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Service Manual - Parker Hannifin - Solutions for the Truck Industry

1. A ls in i p Commercial lt Hydraulics the world s best hydraulic cylinders mE AEG X Z gt EEEE m lt qu 21 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Standard Test Procedure for Hydraulic Cylinders 1 Function Test Once the Cylinder is placed on the test stand and hydraulic lines attached the cylinder will be cycled its full stroke a minimum of three 3 full cycles The cylinder will be rejected if it functions erratically Erratic function is excessive chatter slapstrick stalling and uncorrectable misstaging 2 Proof Pressure Test After the function test is performed the cylinder will be extended fully and pressure held for a minimum of thirty 30 seconds This pressure will be 2500 psi or a pressure indicated on the assembly print The cylinder will be rejected for external leakage or structural deformation If the cylinder is double acting it will be fully retracted and pressure held for a minimum of thirty 30 seconds The pressure will be 2500 psi or a pressure indicated on the assembly print The cylinder will be rejected for external leakage or structural deformation 3 2 Internal Bypass Test This test will be performed on all double acting cylinders and can be done in conjunction with the Proof Pressure Test The cylinder will be fully extended and pressure held at 2500 psi The retract line will be removed
2. Check minimum drive speed May be too slow to prime pump 6 Wrong fluid in system Cil viscosity too heavy for pump to pick up a prime Drain complete system Add new fluid of proper viscosity T Air leaks at intake Pump not priming Circuit must be tested at inlet connections At pump intake piping joints test by pouring oil on joints while listening for a change in sound of operation Determine where air is being drawn into line connec tion and tighten At pump shaft Test by pouring oil on shaft seal while listening for a change in sound of operation Follow manufacturer s recommendation when changing seals Air drawn in through intake pipe opening Check to be certain suction and return lines are well below oil level in reservoir Add oil to reservoir if necessary 7 Worn or dirty pump Clean repair or replace Check alignment Check for contaminated oil Drain and flush system 8 Pump driven in wrong direction of rotation Most pump assemblies will have an arrow showing correct rotation On gear type pumps the pressure port output will be on the side where the gears come together and mesh Check to assure correct pump rotation was applied during assembly 9 Leakage Check all components particularly the relief valve for proper settings Refer to technical manuals 10 Broken or badly worn components pump valves cylinders etc Examine and test for internal or external leakage Analyze the
3. Scored Rod or Ram A Internally generated contamination B Externally introduced rod dirt dirty makeup or disassembly reassembly dirt C Misoriented exclusion devices wiper scraper eccentric installation D Misaligned eccentric loads cock ram into metal to metal contact with head E Wiper in vertical ram forms catch all pocket 8 Drift A Inspect valve for leakage and full closure before disassembly disconnect return line on valve and inspect visually for leakage B See problems 1 and 2 as applied to piston seals C Misapplied cast iron rings in a hold cylinder right ring in the wrong job D In retract mode creep check rod seal as well as piston seal E Static internal seal may provide leakage path past piston 9 Increasing Cylinder Drag A Seal swell caused by improper incompatible installation lubricant e g EPR seal lubed with petro based grease or oil B Packing of contaminants into wiper groove of vertical ram C Thermal expansion of bearings and or seals D Apparent drag increase due to undetected flow restriction in supply or return line or bypassing of pressure though improperly closing valve or obstructed check valve etc E Cocked or twisted seal bypassing fluid and wedging into extrusion gap 10 Increasing Cylinder Rod Temperature A See causes for problem 9 In their earlier stages these problems may appear as hotter running cylinders B Internal le
4. Then unload the dump body or trailer manually or with an alternative mechanical aid Do not move the truck until the dump body or trailer is lowered completely WARNING Over pressurizing the cylinder can cause severe injury or death and or damage to the unit and cylinder Do not operate a cylinder at pressures above factory recommended operating pressures Normally 2 000 P S I unless otherwise approved WARNING Worn or damaged hydraulic hoses can cause severe injury or death and or damage to the unit and cylinder Hydraulic hoses should be checked regularly and replaced if worn out or damaged NOTICE Do not drive the unit while the or hydraulic pump is engaged The hydraulic oil should be checked and changed regularly to avoid contamination leading to internal cylinder damage A damp to light film of oil on each plunger indicates a good cylinder operation A small accumulation of oil may be noticed on the plunger at the head nuts after many cycles This should not be mistaken for packing leakage Cylinder should be free of entrapped air It is advisable to bleed air from the cylinder weekly to free entrapped air This will result in a smoother operation The cylinder should float in the pin mountings The cylinder should be installed with 1 8 to 3 16 of clearance between the pin and the pin hole if the mounting eye is wider than 5 or with 1 16 to 1 8 clearance if the mounting eye is less than 5 wide There shou
5. d an assignment for the benefit of creditors or e the dissolution or liquidation of the Buyer 18 Governing Law This agreement and the sale and delivery of all Products hereunder shall be deemed to have taken place in and shall be governed and construed in accordance with the laws of the State of Ohio as applicable to contracts executed and wholly performed therein and without regard to conflicts of laws principles Buyer irrevocably agrees and consents to the exclusive jurisdiction and venue of the courts of Cuyahoga County Ohio with respect to any dispute controversy or claim arising out of or relating to this agreement Disputes between the parties shall not be settled by arbitration unless after a dispute has arisen both parties expressly agree in writing to arbitrate the dispute 19 Indemnity for Infringement of Intellectual Property Rights Seller shall have no liability for infringement of any patents trademarks copyrights trade dress trade secrets or similar rights except as provided in this Section Seller will defend and indemnify Buyer against allegations of infringement of U S patents U S trademarks copyrights trade dress and trade secrets Intellectual Property Rights Seller will defend at its expense and will pay the cost of any settlement or damages awarded in an action brought against Buyer based on an allegation that a Product sold pursuant to this Agreement infringes the Intellectual Property Rights of a third
6. i f ee OH 44501 Hydraulics 25 Parker Hannifin Corporation Mobile Cylinder Division Youngstown Hydraulic Oil Recommendations All cylinder parts with the exception of a few items are lubricated by the hydraulic oil in the circuit Particular attention must be paid to keep the oil in the circuit clean Whenever there is a hydraulic component failure cylinder pump valve and there is a reason to feel that metal particles may be in the system the oil must be drained the entire system flushed clean and any filter screens thoroughly cleaned or replaced New oil should be supplied for the entire system Oil suitable and recommended for use in circuits involving Commercial cylinders should meet the following specifications These suggestions are intended as a guide only Obtain your final oil recommendations from your oil supplier Approximate SSU at Viscosity Recommendations Pp Optimum operating viscosity is considered to be about 100 SSU Oil 1009F 2109 F 50 SSU minimum Q operating temperature A n 7500 SSU maximum Q starting temperature Grade 37 8 C 98 9 C 150 to 225 SSU 100 F 37 8 C generally SAE 10 44 to 48 SSU 210 F 98 9 C generally SAE 20 l l Normal Temperatures Other Desirable Properties 0 F 18 C to 100 F 37 8 C ambient Viscosity Index 90 minimum 100 F 37 8 C to 180 F 82 2 C system Aniline point 175 minimum Be sure the oil you us
7. pressure and GPM gallons per min the cylinder will develop less force and increase in speed as it changes to the next moving stage Oil trapped between the sleeves escapes through holes C in each sleeve and returns to the tank through port B d C 12222 Berne E m 540000022 gt EN zz Emi B 20 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Double Acting Telescopic Cylinder Operation Retracting Stop Ring A 1 7 m pa M Sil To Retract High pressure oil is directed by the control valve into port B The pressure is applied to the effective area D of the plunger which retracts first Each stage from the smallest to the largest A M WHEN 1 gt xD SS SS Ecc MM mma ee a une retracts in its turn however THE EFFECTIVE AREA FOR RETRACTING EACH STAGE IS THE AREA D OF THE PLUNGER Bl C ds un FREI DD d Oil inside the cylinder is forced out of port A Because of the area differential the flow into port B must be multiplied by this differential to determine the flow out of port A It may be neces sary to install a dump to tank valve to speed up the retracting cycle ee REM LAR 5 In pupillum UU 2 Equip your vehicle with
8. 040 375 9023 041 375 9023 042 Bronze AM3023 42 AM3023 52 AM3023 62 AM3023 72 AM3023 84 AM3023 98 Cast Iron 391 2683 010 391 2683 014 391 2683 019 391 2683 024 391 2683 029 391 2683 034 391 2683 042 Piston Ring X78 3 25 1 78 4 25 X78 5 25 X78 6 25 X78 7 25 X78 8 437 78 9 88 Steel External 391 1470 162 391 1470 163 391 1470 164 391 1470 165 391 1470 166 391 1470 167 391 1470 177 Headnut YA3011 27 YA3011 37 YA3011 47 YA3011 57 YA3011 67 YA3011 79 YA3011 93 Bronze Internal 391 1470 079 391 1470 070 391 1470 071 391 1470 072 391 1470 073 391 1470 074 391 1470 075 Headnut MA3011 27 MA3011 37 MA3011 47 MA3011 57 MA3011 67 MA3011 79 MA3011 93 10 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Gland Bearing 3 5 9003 064 375 9003 044 375 9003 045 375 9003 046 375 9003 063 375 9003 041 375 9003 066 Bronze AH1003 27 AH1003 37 AH1003 47 AH1003 57 AH1003 67 AH1003 79 AH1003 93 Genuine Replacement ServiceRepair Kits Repair Kits For Standard Parker Commercial Single acting Dump Body Cylinders Parker s genuine replacement parts are available in kits to rebuild or repack our dump body cylinders These parts are the same as originally installed As with all hydraulic repairs be sure your shop is properly equipped and that the work area is clean Rebuilding kits consist of 1 Wiper Rings 2 Packing Assemblies 3 Gland Bearing Rings 4 Wave Sp
9. 2009 Parker Hannifin Corporation All Rights Reserved Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH NO Table of Contents Safety Precautions for Single Acting Telescopic Cylinders 4 5 Safety Precautions for Double Acting Telescopic Cylinders 6 7 General Information 8 9 Service Parts and Required 10 12 Normal Maintenance Items uu2u00200200020000000000 2000000 ann ann ann nun nun ann nun nun 13 Telescopic Cylinder 2 88 40 nana nana nnns 14 15 Telescopic Cylinder Asssembly 1 cere erre eller 16 17 Telescopic Cylinder Operation 2 22e e eere eere eene en 18 21 Standard Test Procedure elles reisen enean nana a naa uana aa annua aa aa uana 22 Storage and IBstallatiOEb 23 Bleederless Telescopic 1 22 2 LL cere ell llle elena nana aaa nn nun ann 24 25 Hydraulic Oil Recommendations cce eee ee Lee eire nne e naa aaa 26 Troubleshooting FINNS 27 31 Parker Safety Guidelines 32 OMErF 0 eee
10. Assembly print Description 2 75 Stage 3 75 Stage 4 75 Stage 5 75 Stage 6 75 Stage 7 905 Stage 9 375 Stage i 375 9009 017 375 9009 034 375 9009 018 375 9009 019 375 9009 020 375 9009 021 with Shims AJ3009 27 AJ3009 37 AJ3009 47 AJ3009 57 AJ3009 67 AJ3009 79 AJ3009 93 2 A Wiper Ring 375 9026 136 375 9026 137 375 9026 138 375 9026 139 375 9026 140 375 9026 141 375 9026 142 Gland Bearing 391 2682 001 391 2682 002 391 2682 003 391 2682 004 391 2682 005 391 2682 006 391 2682 007 Glass Filled Nylon J1003 1 1 J1003 1 2 J1003 1 3 J1003 1 4 J1003 1 5 J1003 1 6 J1003 1 7 ice Sane 391 3581 320 391 3581 300 391 3581 301 391 3581 302 391 3581 303 391 3581 304 391 3581 310 pring P1327 27 P1327 37 P1327 47 P1327 57 P1327 67 P1327 79 P1327 93 Threaded Stop 375 4020 001 375 3020 002 375 6020 002 375 5020 001 375 7020 001 375 8020 001 375 9020 001 Non Beveled F4020 F3020 F6020 F5020 F7020 F8020 F9020 Threaded Stop 375 3020 110 375 3020 111 375 3020 112 375 3020 113 375 3020 114 375 3020 120 375 3020 119 Beveled AG3020 1 27 AG3020 1 37 AG3020 1 47 AG3020 1 57 AG3020 1 67 AG3020 2 79 AG3020 2 93 Piston Bearing 391 2684 123 391 2684 069 391 2684 070 391 2684 071 391 2684 072 391 2684 073 391 2684 098 Glass Filled Nylon U3023 32 U3023 42 U3023 52 U3023 62 U3023 72 U3023 84 U3023 98 Piston Bearing 375 9023 079 375 9023 038 375 9023 039 375 9023
11. Most double acting telescopic cylinders will self bleed themselves of air Upon installation of a new cylinder this will require cycling the cylinder approximately 10 times to the complete extend and retract positions with no load against it Check to make sure stages sequence properly When extending the largest stage should move first then the next largest etc and when retracting the smallest should move first then the next smallest etc The hydraulic oil should be checked and changed regularly to avoid contamination leading to internal cylinder damage Grease the pin mountings regularly WARNING Before working on a telescopic cylinder mounted on a truck or trailer unit use supports or holding devices that will absolutely prevent the body from accidentally lowering Place control valve in the LOWER position to assure that all pressure has been relieved from the cylinder Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH N Hydraulic Cylinder Model Number Coding The code and model numbers of a Parker Commercial Hydraulics Cylinder are references to its size and type Using these numbers when ordering or inquiring greatly facilitates accurate understanding The following are examples of Parker Mobile Cylinder code and model numbers Single acting Telescopic Double acting Telescopic Double acting Piston Rod S63MB 9 120 SD96CC 3 199 D72LB 11 83 172846 6 7 125 6 7 4245 6 1 S Single acting Telesc
12. Opportunity Clause For the performance of government contracts and where dollar value of the Products exceed 10 000 the equal employment op portunity clauses in Executive Order 11246 VEVRAA and 41 C F R 88 60 1 4 a 60 741 5 a and 60 250 4 are hereby incorporated 1 09 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH p 6035 Parkland Blvd Cleveland Ohio 44124 4141 Parker Hannifin Corporation Telephone 216 896 3000 Fax 216 896 4000 www parker com About Parker Hannifin Corporation Parker s Charter Parker Hannifin is a leading global motion control To be a leading worldwide manufacturer of compo company dedicated to delivering premier customer nents and systems for the builders and users of durable service A Fortune 500 corporation listed on the New goods More specifically we will design market and York Stock Exchange PH our components and sys manufacture products controlling motion flow and pres tems comprise over 1 400 product lines that control mo sure We will achieve profitable growth through premier tion in some 1 000 industrial and aerospace markets customer service Parker is the only manufacturer to offer its customers a choice of hydraulic pneumatic and electromechanical Product Information motion control solutions Our North American customers seeking product infor Company has th
13. Precautions for Double Acting Telescopic Cylinders WARNING Over pressurizing the cylinder can cause severe injury or death and or damage to the unit and cylinder Do not operate a cylinder at pressures above factory recommended operating pressures Normally 2 000 P S I unless otherwise approved Hydraulic hoses should be checked regularly and replaced if worn out or damaged NOTICE Do not operate a packer ejector cylinder with a misaligned blade If the packer ejector blade is bent damaged or if the blade slide shoes or guide track assembly are worn out this can cause excessive side loading to the cylinder damaging it internally or bending a plunger or sleeve If the hydraulic system uses quick disconnects such as on a transfer trailer or holding lock type valves make sure they are properly connected If not oil may become trapped in the cylinder causing an excessive pressure build up and damage to the cylinder This is particularly true if there is a blockage on the retract side of the cylinder and the cylinder is then extended This could internally intensify the pressure 10 times or more inside the cylinder Example The pump develops 2 000 P S I trying to extend the cylinder oil pressure trapped on the retract side of the cylinder could see 20 000 P S I A double acting telescopic cylinder normally requires at least 15 G P M oil flow to retract properly Make sure the hydraulic pump is developing the required flow
14. This includes a broken piston rod mounting accessory or any other cylinder component This notification should include all operation and application details This information will be used to provide an engineered repair that will pre vent recurrence of the failure It is allowed to disassemble cylinders for the purpose of replacing seals or seal assemblies Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Offer of Sale The items described mis document and omer documents and descriptions provided Dy Parker Mannitin Corporation its subsidiaries and 15 authorized distribu tors Seller are hereby offered for sale at prices to be established by Seller This offer and its acceptance by any customer Buyer shall be governed by all of the following Terms and Conditions Buyer s order for any item described in its document when communicated to Seller verbally or in writing shall constitute acceptance of this offer All goods or work described will be referred to as Products 1 Terms and Conditions Seller s willingness to offer Products or accept an order for Products to or from Buyer is expressly conditioned on Buyer s assent to these Terms and Conditions and to the terms and conditions found on line at www parker com saleterms Seller objects to any contrary or additional term or condition of Buyer s order or any other document issued by Buyer 2 Price Adjustments Payments Prices stated on the reverse s
15. a rr eee 33 3 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Safety Precautions for Single Acting Telescopic Cylinders WARNING Telescopic cylinders commonly installed on dumping vehicles are devices intended to provide only a lifting force The cylinder is not a structural member and is not designed for nor intended to provide stability to the dumping vehicle Rollover or lateral tilt can cause the cylinder to bend buldge or separate causing the dump body to drop suddenly resulting in severe injury or death and or damage to the unit and cylinder if the following warnings are not observed Hydraulic cylinders are not to be used as a stabilizer on a dump body or dump trailer The hydraulic cylinder will not prevent the dump body or trailer from rollover or lateral tilt The cylinder is strictly a lifting device and is not a structural member of the unit Cylinders are not to be used as a means of stabilizing the unit The hydraulic cylinder mounted in the unit should be free to find its own trajectory line of extension free of any lateral loading of the plungers Misalignment of the top or bottom mountings or mounting pins too tight may cause scoring of the plungers leaking or improper sequencing which could cause the unit to upset The hydraulic cylinder will not withstand lateral or side pressure when the unit is leaning Only activate the cylinder when the tractor and trailer are in a straight line not jack
16. and piston seal bypass will be determined by the flow out of this cylinder port Excessive bypass will be a cause for cylinder rejection The cylinder will be fully retracted and pressure held at 2500 psi The extend line will be removed and the piston bypass will be determined by the flow out of this cylinder port The cylinder will be rejected for excessive flow When making this test the hydraulic line should be completely removed from the cylinder port and the open line from the valve should be plugged or capped since a slight back pressure in the tank return line would spill oil from the line if not plugged Pass Fail criteria if not noted on Assembly drawing is as follows Cast Iron Rings Normal Maximum leakage 1 GPM Bypass 1 2 cubic inch per inch of bore diameter per minute Extend bypass would be 1 2 cubic inch per inch of plunger piston ring OD per minute Retract bypass would be 1 2 cubic inch per inch of piston ring OD per minute of each stage added together Example SD73 Series Extend bypass 1 2 x 5 25 2 62 cubic in min bypass 1 2 x 7 25 1 2 x 6 25 1 2 x 5 25 9 38 cubic in min Soft Seals Maximum leakage 5 drops per minute Please Note Before Installing a New Cylinder in an old application Has the problem been corrected that caused the original cylinder to fail Is the hydraulic fluid clean of all contamination water and entrapped air Are the hydraulic system relief valve pressures set and opera
17. conditions that brought on the failure and correct them Hepair or replace the faulty components according to technical manual specifications 11 Excessive load Check unit specifications for load limits System Develops No Pressure 1 Pump not delivering fluid Follow the remedies mentioned above 2 Incorrect valve position or setting Check and engage valve Install pressure gauge and adjust to correct pres sure 3 Vanes in vane pump sticking Check for burrs or metal particles that might hold vanes in their slots Hepair or replace if necessary Clean system if contaminants are found 4 Fluid recirculating back to reservoir and not going to functions Mechanical failure of some other part of the sys tem especially a relief valve If contamination is involved clean and refill with proper fluid 5 Piston pump or valve broken or stuck open allowing fluid to return to inlet side Disassemble the pump determine the cause and correct it Repair according to technical manual instructions System Operates Erratically 1 Air in system Check suction side for leaks Repair 2 Cold oil Allow ample warm up period Operate only at recommended operating tempera ture ranges 3 Wrong fluid viscosity Cil viscosity too heavy Drain complete system Add new fluid of proper viscosity 4 Pump speed too slow Increase engine speed Check manual for recommendations 5 Dirty or damaged components Clean or r
18. dog house of the dump body to access the bleeder valve 3 Fully extend the cylinder raising the EMPTY dump bed 4 Lower the dump to within 1 foot from resting on the frame 5 With the fingers turn the bleeder valve in a counterclockwise direction This opens the valve and allows the air to escape from the cylinder 6 When a steady stream of oil comes from the bleeder turn the valve in a clockwise direction until it is closed If these procedures fail to correct the problem please contact an Authorized Service Center for Instructions 13 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Telescopic Cylinder Disassembly Start Disassembly Open the air release valve if equipped remove the port pipe plugs and drain all of the oil out of the cylinder We recommend draining the oil from the cylinder before hoisting it to the vertical work stand position It is easiest to drain oil when the cylinder is in a horizontal position and with the port down and open Rotate the last plunger so the bleeder hole is on top and open If ny En Um M dr ATA T you don t drain the oil oil will squirt out as each tube is removed E m DX Wa 19 Step 2 Firmly secure the cylinder in place with the rod end up to a sturdy workbench or a suitable stand that has access to an overhead crane Step 3 Remove the grease fitting and air release valve with an open end wrench or an adjustable crescent
19. knifed A jackknife position of the tractor with the trailer is not recommended when dumping In a jackknifed position the upper coupler pivots on bearings contributing nothing to dump stability When the tractor and trailer are straight the coupler bearings are normally 34 inches apart assisting in stabilizing the dump Do not activate the cylinder while on unlevel or soft ground or during heavy crosswinds Doing so may cause the unit to upset Uneven terrain causing the trailer wheels to be 3 1 2 inches to 4 inches higher than the other side puts the top of the body 12 inches to 14 inches off center when the cylinder is fully extended On fresh fill loaded trailer wheels may sink on one side again setting up potential tip over On road construction the crown is also critical on spread application as in dumping on a slope A 4 inch plus height differential of wheels on an axle 8 feet wide is another rollover potential Do not attempt dumping operations in high gusty wind conditions If possible raise the dump body directly into the wind A blown tire or a severely under inflated tire can cause dump instability when dumping Always check tires visually for cuts or punctures by nails and metal Make sure all tires are inflated properly Proper tire inflation also improves wear and fuel economy Do not activate the cylinder while personnel or equipment are alongside or behind the dump body or trailer A hung load is commodity that does no
20. wrench Step 4 Remove pipe plugs on double acting telescopic cylinders with an adjustable crescent wrench Step 5 Clean head nut thread area spray with WD 40 penetrating oil Step 6 Remove set screws from all packing nuts with a 1 8 Allen wrench Step 7 Hemove all packing nuts with adjustable spanner wrench G3067 84K 4 Starting with the smallest thru the largest If the nut will not move a sharp rap with a blunt chisel or rod may be required to jar the nut loose If using a punch to break loose head nut be careful not to damage threads Step 8 Hemove and discard old nylon slugs which were in packing nuts Step 9 Remove the wiper seal from the packing nut Discard the old wiper seal Step 10 14 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Telescopic Cylinder Disassembly Clean the thread and bearing area with a solvent and a clean N lintless rag Step 11 Remove all bearing rings with two bearing ring pullers M3067 4 4 Step 12 Remove all packing with packing puller V3067 1 Or extend the plunger or sleeve out about one foot Wrap masking tape around a clean area on the plunger or sleeve E Push plunger or sleeve back into and past the packing and pull ase out Packing will usually pop out if not repeat the process ile Step 13 Remove wave spring from packing recess with a narrow screwdriver S
21. AVE 5 38010X4 741Dx0 12H P1327 47 REBUILD KIT 375 1804 022 391 3580 300 1 a CONSISTS OF ITEMS 1 4 9 20 amp 25 30 1161375 5909 650 1 VP HYTREL RUBBER 34 1973 TAEI Na SEAL 26 38CDX5 7510XLI2V VP HYTREL RUBBER fr SEAL 380DX4 73108 L12W HYTREL EUBBER MAXIMUM EXTEND FLOW 40 GPM 375 9009 034 USE M c RR AE TREL RUBBER gen S74DC 74 135 00 E gt pr eee eee 391 2682 004 WEAR RINGes 38CIIS 751DXL 00V CONT MNRL Y Mu SEE tT AB u an ores E O vent ame nme TID RINGS 3800475101000 m ASSY ENGR i R R ee SEEVE E Qo Ea 5 341 2 88 SLEEVE 34 391 1470 166 1 YA30l 67 PACKING NUT 377 2514 125 135 75 2 50 PLUNGER 33 7 391 1470 165 1 74301 57 PACKING MUT 351 1470 164 SST WY src ou pescerprion ue Er S ENETH BE EL A Has xm E 8 375 9026 138 1 Ice TASIDX ERW TURE THANE 1 1375 3026 137 l WIPER 4 4000 74510001 Ge THANE 0704 27 377 2514 125 aerospace climate control M obile Cyl nder D IV electromechanical filtration Standard Telescopic Service Manual fluid amp gas handling hydraulics Catalog HY18 0008 US Rev B pneumatics process control sealing amp shielding ENGINEERING YOUR SUCCESS N WARNING USER RESPONSIBILITY FAILURE OR IMPROPER SELECTION OR IMP
22. Number telescopic cylinders Tools 3 3 4 BC3067 1 376 3067 008 i 3 1 4 2 3 4 BA3067 1 376 6067 047 with are required for all 4 3 4 BC3067 2 376 3067 009 Z 4 1 4 33 4 BA3067 2 376 6067 048 cylinders regardless of size 5 3 4 BC3067 3 376 3067 010 5 1 4 4 3 4 BA3067 3 376 6067 049 Lifting rings and stop ring 6 3 4 BC3067 4 376 3067 011 u i 6 1 4 5 3 4 BA3067 4 376 6067 050 wrenches must be ordered 7 7 8 BC3067 5 376 3067 012 i ip 7 14 6 3 4 067 5 376 6067 051 to fit the specific sleeve in 9 3 8 BC3067 6 376 3067 013 0987 16 77 8 67 6 376 6067 052 the cylinder 11 1 8 BC3067 7 376 3067 014 9 7 8 93 8 BA3067 7 376 6067 053 12 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Normal Maintenance Items Packing wipers and bushings are considered normal maintenance or service items These items are subject to contamination from external and internal foreign materials many of which are abrasive in nature causing abnormal wear or damage to the parts to the extent that replace ments are required WARNING Before working on a telescopic cylinder mounted on a truck or trailer unit use supports or holding devices that will absolutely prevent the body from accidentally lowering Place control valve in the Lower position to assure that all pressure has been relieved from the cylinder Because of our self compensating Packing design Standard Parker Commer
23. ROPER USE OF THE PRODUCTS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE DEATH PERSONAL INJURY AND PROPERTY DAMAGE This document and other information from Parker Hannifin Corporation its subsidiaries and au thorized distributors provide product or system options for further investigation by users having technical expertise The user through its own analysis and testing is solely responsible for making the final selec tion of the system and components and assuring that all performance endurance mainte nance safety and warning requirements of the application are met The user must analyze all aspects of the application follow applicable industry standards and follow the information concerning the product in the current product catalog and in any other materials provided from Parker or its subsidiaries or authorized distributors To the extent that Parker or its subsidiaries or authorized distributors provide component or system options based upon data or specifications provided by the user the user is responsible for determining that such data and specifications are suitable and sufficient for all applications and reasonably foreseeable uses of the components or systems Offer of Sale The items described in this document are hereby offered for sale by Parker Hannifin Corporation its subsidiaries or its authorized distributors This offer and its acceptance are governed by the provisions stated in the Offer of Sale Copyright
24. Y CLOSED LENGTH CYLINDER LENGTH STRUKE pe Ki 1 medir arcam ans eX asi Or alz DIA PINEYE 8 00 OD X 7 25 MAIN 1 DUK cH L ING d amp 371 6745 073 1 A3867 450K 111_ SA SLEEVE ASSEMBLY L DPERATING PRESSURE 2000 P S L SERIAL NUMBER TAG LOCATION PER MCES 0001 35 371 5745 094 1 PUEDE SA SLEEVE ASSEMBLT TEST PRESSURE 2500 ASI SS eT TEIE TEST CYLINDER PER MCES 007 APPLY LOCTITE 242 TO SET SCREWS PER HE STD 35 20 ie 1591 eese 030 E PLIP TFAA 6S HEX x Ai APPLY 20 30 IM LB OF TORQUE SET SCREWS 31 391 1281 005 2 FITTING 0 12NPT 0 GREASE AES 1430 141 4 SCREW 3 025 RETRACT R BER DEREN SEELE RER 531975 SIE Ist SLEEVE 71 567 727 391 2684 071 1 VEAR RINE 2500006000000 SV GL NYL GRVT 8nd SLEEVE 51933 SHIPPERS NOTE EACH CYLINDER WILL HAVE 26 391 2584 070 1 WEAR RING S 2SUEXS BUTT GL HYL OR VD 3rd SLEEVE 35 440 ES ee IHRE SEINEN WEN ee 22131 2654 069 1 VEME sanmsc cam SV NUT or EVE acd SLEEVE 7241375 3020 14 1 AG3020 1 67 STOP RING S0 REVEL PLUNGER 22 089 E ES 3 113 li 453020 1 57 STOP RING 30 BEVEL 375 3020 1 63020 1 47 STOP RING 30 BEVEL 375 3020 SEAL KIT 375 1804 003 frs gt n 020 1 32 Fu PING 30 BEVE Ur 1 4 10 16 E E 50 Ber aoe 1 T SPR WAVE 6 SEULS 7 577 18 391 3581 301 1 SPR W
25. a linear applied load A rotating mass has considerably more energy than the same mass moving in a linear mode Cushioning for a rotat ing mass application should be review by our engineering depart ment Cylinder Mountings Some cylinder mounting configurations may have certain limitations such as but not limited to minimum stroke for side or foot mounting cylinders or pressure de ratings for certain flange mounts Carefully review the catalog for these types of restrictions Always mount cylinders using the largest possible high tensile alloy steel socket head cap screws that can fit in the cylinder mounting holes and torque them to the manufacturer s recommendations for their size Port Fittings Hydraulic cylinders applied with meter out or deceleration circuits are subject to intensified pressure at piston rod end The rod end pressure is approximately equal to operating pressure x effective cap end area effective rod end piston area Contact your connector supplier for the pressure rating of individual connectors Cylinder Modifications or Repairs Cylinders as shipped from the factory are not to be disassembled and or modified If cylinders require modifications these modifications must be done at Parker locations or by Parker certified facilities The Mobile Cylinder Division Engineering Department must be notified in the event of a mechanical fracture or permanent deformation of any cylinder component excluding seals
26. added support to the tube exterior 8 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Hydraulic Cylinder Load amp Displacements S SERIES SINGLE ACTING SINGLE amp MULTIPLE STAGE CYLINDERS Sleeve or Plunger O D Effective Area Load Capactity Displacement per inch in inches in square inches lbs 2000 p s i of stroke in gallons 0 026 SD SERIES DOUBLE ACTING MULTIPLE STAGE CYLINDER Sleeve or Plunger O D or Sleeve sq inches sq inches in inches in inches to extend to retract p s i extending p s i retracting in gallons un Gallons to extend to retract Note The Effective area to RETRACT a Standard SD series double acting multiple stage cylinder is the effective area of the PLUNGER plunger bore area minus the plunger O D area Example Retract force for a SD94CC 8 190 which has 5 75 O D plunger and fits in 6 25 bore would be 9 426 Ibs 2 000 psi based on a 4 71 sq in effective area To calculate effective area in square inches Multiply diameter times diameter times 78 Example 5 dia x 5 dia 25 x 78 19 63 Square inches of area To calculate load capacity cylinder force Multiply effective area times operating pressure psi Example 19 63 Square inches x 1750 P S I 34 361 Ibs of force To calculate the required gallons of fluid to extend a cylinder Add each Displacement per inch of stroke from chart for the required sleev
27. afety hazards Providing all appropriate health and safety warnings on the equip ment on which the cylinders are used Seals The seals for the product lines shown in this catalogue are intended for mineral base hydraulic fluids and for the operating temperatures ranges as indicated The operation of these products with other fluids or at other operating temperatures must be brought to the attention of our engineering department so that proper seals for intended opera tion may be selected The application of cylinders may allow fluids such as cutting fluids wash down fluids etc to come in contact with the external area of the cylinder These fluids may attack the piston rod wiper and or the primary seal and must be taken into account when selecting and specifying seal compounds Dynamic seals will wear The rate of wear will depend on many op erating factors Wear can be rapid if a cylinder is mis aligned or if the cylinder has been improperly serviced The user must take seal wear into consideration in the application of cylinders Piston Rods Possible consequences of piston rod failure or separation of the piston rod from the piston include but are not limited to are e Piston rod and or attached load thrown off at high speed e High velocity fluid discharge e Piston rod extending when pressure is applied in the piston retract mode Piston rods or machine members attached to the piston rod may move suddenly and without wa
28. aight line not jack knifed Do not activate the cylinder while on unlevel or soft ground or during heavy crosswinds Doing so may cause the unit to upset Do not activate the cylinder while personnel or equipment are alongside or behind the unit On roll off units lower the container with the control valve partially open avoid lowering the container with the control valve completely open to prevent pressure build up in the reeving cylinders as gravity pulls the container to the ground WARNING Shock pressure can cause severe injury or death and or damage to the unit and cylinder A double acting telescopic cylinder should be fully retracted when not in use Do not extend the cylinder until it has been fully retracted A partially extended cylinder with pressure relieved may drift out of position This can happen if a cylinder experiences vibration such as an ejector or push out cylinder does in a refuse body If this happens and the cylinder is then extended the out of position plunger or sleeves will rapidly reposition themselves and possibly cause high pressure oil to be trapped on the retract side of the cylinder This could cause a stage sleeve to bulge and or the packing and bearings to be blown out from under a head nut On roll off units do not pull a container onto the hoist until the lift cylinder s are completely extended If the lift cylinders are not completely extended when a container is being pulled onto the hoist the l
29. akage throttling past seal can cause rapid heating C Decreased lubricity of fluid can boost friction and heating hotter fluid has lower viscosity etc Contaminated or deteriorated fluid can cause same cycle D Diluted fluid can boost friction etc E Condensation in reservoirs can emulsify or hit cylinder as slugs of fluid with near zero lubricity Also hot water can swell compounds such as urethanes increasing friction 11 Telescopic sleeve undersized out of round or bulged A Check with micrometers to see if sleeve tube is with in specifications Cylinder will not Operate or Move 1 Pump or PTO is not engaged system not receiving fluid Engage pump correct pump flow problem 2 Control valve not engaged Engage valve check for linkage alignment and damage 3 Pressure too low Check pressure at cylinder to make sure it is to circuit requirements 4 Cylinder bypassing internally Check for internal scoring damaged or worn seals internal cracks Cylinder overloaded for rated capacity Reduce load Cylinder too small or not rated for application Install correct cylinder Piston rod broken at piston end Disassemble and replace piston rod Hose quick disconnect not attached Check if hose quick disconnect is connected properly Cylinder not Holding Load or Drifts 1 Cylinder bypassing internally Check for internal scoring damaged or worn seals inter
30. al 4 Erratic start stop Leakage A Cold start up shrinks seal friction fluid heating restores size B Intermittent eccentric loading C Fibrous contamination working its way past seal lips D Unstable seal twists and returns cocks etc usually caused by shock loading E Rod seal leaks slowly tight wiper periodically dumps accumulated leakage see 3 G Fluid viscosity changes as temperature cycles e Q forklift truck alternately entering and leaving cold storage area 5 Stick slip Operation A Worn away low friction surface treatment B Breakdown of fluid lubricity due to contamination or deterioration of fluid C Viscosity change due to temperature D Excessive burnishing of dynamic surface to finer finish destroys ability of surface to maintain lube film e g may go from 12 RMS to 4 RMS 6 Seizing A Seal and bearing swell due to incompatible fluid and compound possibly running hotter than temperature at which fluid is compatible B Thermal expansion of compound C Pressure trap between dual squeeze seals or incorrectly installed lip seals D Wedging of seal or backup device into extrusion gap if used it is usually the backup device that extrudes 29 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Troubleshooting Hints E In low pressure systems shock or other factors cock cant or misorient the seals in grooves F Bent rod cocked head etc 7
31. all applications and reasonably foreseeable uses of the Products or systems 9 Loss to Buyer s Property Any designs tools patterns materials drawings confidential information or equipment furnished by Buyer or any other items which become Buyer s property may be considered obsolete and may be destroyed by Seller after two consecutive years have elapsed without Buyer placing an order for the items which are manufactured using such property Seller shall not be responsible for any loss or damage to such property while it is in Seller s possession or control 10 Special Tooling A tooling charge may be imposed for any special tooling including without limitation dies fixtures molds and patterns acquired to manufacture Products Such special tooling shall be and remain Seller s property notwithstand ing payment of any charges by Buyer In no event will Buyer acquire any interest in apparatus belonging to Seller which is utilized in the manufacture of the Products even if such apparatus has been specially converted or adapted for such manufacture and notwithstanding any charges paid by Buyer Unless otherwise agreed Seller shall have the right to alter discard or otherwise dispose of any special tooling or other property in its sole discretion at any time 11 Buyer s Obligation Rights of Seller To secure payment of all sums due or otherwise Seller shall retain a security interest in the goods delivered and this agreement shall be d
32. all fluid motors Leave rod end disconnected and with engine at one fourth throttle activate circuits slowly until cylinder bottoms out New oil will be put in the blind end of the cylinder and old dirty oil flushed out the rod end Do this for all cylinders on the machine 11 Connect lines to rod end of cylinders Again check oil level and add new oil as required 12 Operate all cylinders and motors alternately for 30 minutes at normal operating speed 13 Change filter element check oil level and add oil as needed The above procedure if followed will allow you to in stall a new pump or cylinder with confidence knowing that you ll get satisfactory life Cutting short these steps can cause premature hydraulic component failure a pump nor a cylinder will run long on a contaminated system In nearly all cases a replacement component will fail in a shorter time than the original preceding it unless the system is thoroughly cleaned In addition to ensure good service from your equip ment the hydraulic system must be properly maintained including frequent oil level checks daily inspection for leaks filter element and oil changes at recommended intervals using correct filters and recommended grade of oil and finally practicing good operating techniques Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Safety Guidelines for Mobile Cylinder Division Products Parker Safety Guide for Selecting a
33. cial Cylinders require no packing adjustment For Parker Packing Assembly Installation Pro cedure see Service Repair Kit Page Procedure for Adjusting Telescopic Cylinder Head Nuts For Cylinder designs using no Wave Springs and or no U Seals 1 Loosen set screw or set screws in head nut that holds in packing of leaking stage 2 Lightly tap head nut around circumference with a hammer 3 Back head nut off 1 2 to 1 full turn using a spanner or chain wrench Note If stage rotates when head nut is turned hold stage with a strap wrench 4 Cycle cylinder 2 to 3 times to reset chevron vee packing 5 Retighten head nut approximately 1 2 turn further than it was when it was loosened 6 Tighten set screws Procedure for Mis Staging or Mis Sequencing Cylinder 1 Loosen set screws in head nut that holds in packing which fits over stage that is sticking 2 Lightly tap head nut around circumference with a hammer 3 Back head nut off 1 2 turn using a spanner or chain wrench 4 Cycle cylinder if cylinder still mis stages back head nut off another 1 2 turn 5 Cycle cylinder if cylinder still mis stages tighten the head nut of the next stage that is extend ing 6 Tighten set screws Bleeding Air from Single Acting Telescopic Cylinders For smooth operation of these cylinders it is advisable to bleed the air from the cylinder weekly Manual bleeding is accomplished by 1 Empty the dump body of any material 2 Remove the cover plate from the
34. cking one ring at a time in the proper sequence as shown in the sketch Note The soft low pressure ring must be in the second position from the pressure side Installed packing height need not be checked because wave spring will vary this dimension Installation of bearing and packing nut will compress wave spring for proper packing pre load Pull down tight against tube Set Screw remove before backing off packing nut Packing Nut Nylon Ball gee Wiper Bearing Ring Stop Rin p hing Vee Packing Shims Wave Spring Vee Packing Assembly Hard Bottom Adaptor Low Pressure Ring 11 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Hydraulic Cylinder Required Service Tools ADJUSTABLE CHEVRON CYLINDER SPANNER WRENCH ASSEMBLY TOOL PACKING PULLER G3067 84K 4 M3067 2 V3067 1 376 306 7 006 376 9067 001 376 9067 003 lt PISTON RING PLIER M3067 3K 376 3067 015 CYLINDER STRAP WRENCH BEARING PULLER P3067 M3067 4 376 906 7 002 376 3067 001 Tools Required Proper tools make the job of servicing cylinders easier and faster and reduce the possibility of damaging the finely machined surfaces We recommend that you Stop Ring Wrench Have te 10055 sown On 22 BA3067 Series this page prior to attempting Sleeve or Sleeve or Sleeve or service on Commercial Main O D Eng Part Number Main I D Plunger O D Eng Part
35. e 2 1 4 however it may vary slightly due to seating of the stop ring Add one shim to the packing set for every Ware spring 1 32 that this dimension measures over 2 1 4 or FEMOVE Bottom Adaptor one shim from the packing set for every 1 32 that this dimension measures under 2 1 4 Packing Nut Workin Height 178 Nylon Ball p Wiper Bearing Ring Stop Rin pn Vee Packing Shims Vee Packing Assembly Low Pressure Ring Step 6 N Soak packing in hydraulic oil for a few minutes Check bottom adapter Only hard type can be used with the wave spring Install packing ring at a time wa in the proper sequence as shown in the sketch Note The soft low pressure ring must be in the second position from the pressure side Installed packing height need not be checked because wave spring will vary this dimension Installation of bearing and packing nut will compress wave spring for proper packing pre load Pull down tight against tube Step 7 Install gland bearing ring with tapped holes showing Step 8 Install new wiper seals in all packing nuts Step 9 Apply anti seize compound to the sleeve threads Step 10 Install packing nut and tighten with the adjustable spanner wrench G3067 84K 4 if packing height is proper packing nut will bottom out Step 11 Repeat steps 1 through 10 for remaining sleeves and plunger Step 12 Install new nylon balls a
36. e is recommended for Additives Usually Recommended the temperature you expect to encounter Rust and Oxidation R amp O Inhibitors Foam Depressant Other Desirable Characteristics Stability of physical and chemical characteristics High demulsibility low emulsibility for separation of water air and contaminants Resistant to the formation of gums sludges acids tars and varnishes High lubricity and film strength General Recommendations A good quality hydraulic oil conforming to the characteristics listed above is essential to the satisfactory performance and long life of any hydraulic system Oil should be changed on regular schedules in accordance with the manufactures recommendations and the system periodically flushed Oil operating temperature should not exceed 200 F 93 C with a maximum of 180 F 82 C generally recom mended 120 F to 140 F 50 C to 60 C is generally considered optimum High temperatures result in rapid oil deterioration and may point out a need for an oil cooler or a larger reservoir The nearer to optimum temperature the longer the service life of the oil and the hydraulic components Reservoir size should be large enough to hold and cool all the fluid a system will need yet it should not be waste fully large Minimum required capacity can vary anywhere between 1 and 3 times pump output The reservoir must be able to hold all of the fluid displaced by retracted cylinders when th
37. e largest distribution network in mation the location of a nearby distributor or repair its field with over 7 500 distributors serving nearly services will receive prompt attention by calling the 400 000 customers worldwide Parker Product Information Center at our toll free number 1 800 C PARKER 1 800 272 7537 In Eu rope call 00800 C PARKER H 00800 2727 5374 The Climate amp Industrial Controls Group designs manufactures and markets system control and fluid handling components and systems to refrigeration air conditioning and industrial customers worldwide The Aerospace Group is a leader in the development design manufacture and ser vicing of control systems and components for aerospace and related high technology mar kets while achieving growth through premier customer service The Fluid Connectors Group 2 The Seal Group designs manufactures and distributes industrial and commercial seal ing devices and related products by providing superior quality and total customer satisfaction designs manufactures and markets rigid and flexible con nectors and associated prod ucts used in pneumatic and fluid systems The Filtration Group designs manufactures and The Hydraulics Group designs produces and mar kets a full soectrum of hydrau lic components and systems to builders and users of industrial and mobile machinery and equipment The Automation Group is a leading suppli
38. e sizes Divide this total by the number of moving sleeves then multiply that total by the desired cylinder stroke Note The Gallons required to extend does not include the necessary fluid to fill an empty cylinder Example Required fluid to extend a S83DC 40 134 single acting telescopic cylinder with following stage sizes 5 75 O D 112 6 75 O D 155 7 90 O D 210 477 447 3 159 gallons per inch of stroke 159 gallons per inch x 134 of stroke 21 31 gallons to extend cylinder 9 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Genuine Replacement Service Parts Piston Bearings Steel External Double Acting Cylinders Headnut S Beveled Cast Iron Beveled Threaded Gland Bearing Piston Rings Overlap Collar Stop Ring Vee Packing Ring for Double Acting Cylinders Assembly Vee Packing Wiper Stage Wave Sprin i Sleeve pad Shims Ring Non Beveled Piston Bearings Non Beveled Threaded a Single Acting Cylinders Overlap Collar Stop Ring Note Do not use a Beveled Threaded Stop Ring with a Non Beveled Overlap Collar or vice versa Bronze internal headnuts are used on both single and double acting telescopic cylinders Following are service parts used on STANDARD DESIGN COMMERCIAL cylinders Note Commercial Hydraulics manufactures many different types and designs of cylinders If you are not sure of service parts required please refer to the Cylinder
39. e system is not operating yet provide space for expansion and foaming Oil poured into the reservoir should pass through a 100 mesh screen Pour only clean oil from clean containers into the reservoir Never use Crank Case Drainings Kerosene Fuel Oil or any Non Lubricating Fluid such as Water 26 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Troubleshooting Hints System Inoperative 1 Insufficient or No fluid in system Refill system with proper grade and type of fluid Filter new oil being added as recommended Refill oil reservoir with cylinders in closed position If refilled while cylinders are extended the reservoir may over flow when or as the cylinders retract Check for leaks 2 Pump is not engaged Is pump shaft turning Check if PTO power take off is engaged Variable control mechanism out of adjustment Adjust to machine service manual specifications 3 Slipping or broken pump drive Check pump drive mechanism drive key flex coupler for damage Check for proper alignment or tension 4 Pump inlet line plugged Drain oil and replace filter or filter element Check for clogged oil strainers Oil lines dirty or collapsed Check if correct inlet hose is used inner liner may be collapsed Never use a pressure type hose as a pump inlet suction hose Check if supply shut off or gate valve is closed Check in reservoir for other possible obstructions 5 Pump speed too slow
40. eemed a Security Agreement under the Uniform Commercial Code Buyer authorizes Seller as its attorney to execute and file on Buyer s behalf all documents Seller deems necessary to perfect its security interest Seller shall have a security interest in and lien upon any property of Buyer in Seller s posses sion as security for the payment of any amounts owed to Seller by Buyer 12 Improper use and Indemnity Buyer shall indemnify defend and hold Seller harmless from any claim liability damages lawsuits and costs including attorney fees whether for personal injury property damage patent trademark or copyright infringement or any other claim brought by or incurred by Buyer Buyer s employ ees or any other person arising out of a improper selection improper application or other misuse of Products purchased by Buyer from Seller b any act or omis sion negligent or otherwise of Buyer c Sellers use of patterns plans drawings or specifications furnished by Buyer to manufacture Product or d Buyer s failure to comply with these terms and conditions Seller shall not indemnify Buyer under any circumstance except as otherwise provided 13 Cancellations and Changes Orders shall not be subject to cancellation or change by Buyer for any reason except with Seller s written consent and upon terms that will indemnify defend and hold Seller harmless against all direct incidental and consequential loss or damage Seller may change pr
41. epair as necessary 6 Restriction in filters or lines Clean and or replace elements or lines 7 Internal pump parts are sticking Dismantle and repair according to technical manual instructions Look for burrs on parts or metal particles in fluid If contaminants are the cause clean and refill with proper fluid 8 Distance between internal parts has increased due to wear Dismantle and repair If wear is abnormal determine the cause by check ing the operation and maintenance records as well as by examining the pump and system 27 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Troubleshooting Hints Ea Operates Slowly Oo 9 Oil viscosity too high cold Allow oil to warm up before operating machine Low pump drive speed Increase engine speed check manual for recomen dations If clutch or belt driven check for proper tension Low oil level Check reservoir and add oil as necessary Air in system Check suction side for leaks repair Badly worn pump valves cylinders etc Hepair or replace as needed Restriction in filters or lines Clean and or replace elements or lines Improper adjustments Check orifices relief unloading flow control valve etc Adjust per manual Oil leaks Tighten fittings replace seals or damaged lines System Operates Too Fast 1 2 Wrong size or incorrectly adjusted restrictor or flow cont
42. er of pneumatic and electromechanical compo nents and systems to automa tion customers worldwide markets quality filtration and clarification products providing customers with the best value quality technical support and global availability The Instrumentation Group is a global leader in the design manufacture and distribution of high quality critical flow com ponents for worldwide process instrumentation ultra high purity medical and analytical applications 35 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Catalog HY18 0008 US Rev B 2M 04 09 Parker Hannifin Corporation Mobile Cylinder Div P O Box 239 Youngstown OH 44501 0239 phone 330 480 8431 fax 330 480 8432 WWW parker com Your Local Authorized Parker Distributor
43. er s changes in shipping product specifications or in accordance with Section 13 herein 4 Warranty Seller warrants that the Products sold hereunder shall be free from de fects in material or workmanship for a period of eighteen months from the date of de livery to Buyer The prices charged for Seller s products are based upon the exclusive limited warranty stated above and upon the following disclaimer DISCLAIMER OF WARRANTY THIS WARRANTY COMPRISES THE SOLE AND ENTIRE WARRAN TY PERTAINING TO PRODUCTS PROVIDED HEREUNDER SELLER DISCLAIMS ALL OTHER WARRANTIES EXPRESS AND IMPLIED INCLUDING MERCHANT ABILITY AND FITNESS FOR A PARTICULAR PURPOSE 5 Claims Commencement of Actions Buyer shall promptly inspect all Products upon delivery No claims for shortages will be allowed unless reported to the Seller within 10 days of delivery No other claims against Seller will be allowed unless as serted in writing within 60 days after delivery or in the case of an alleged breach of warranty within 30 days after the date within the warranty period on which the defect is or should have been discovered by Buyer Any action based upon breach of this agreement or upon any other claim arising out of this sale other than an action by Seller for any amount due to Seller from Buyer must be commenced within thirteen months from the date of tender of delivery by Seller or for a cause of action based upon an alleged breach of warranty within thirteen months fr
44. f sharp particle under seal leaving cut or nick H Seal lip is nicked or cut during installation note whether leak starts immediately after seal installation l Non repetitive overheating hardens compound which loses its ability to conform to dynamic surface deviations J Off center alignment puts all clearance on one side all compression on the other due to bearing wear excessive side loads etc K Check static surfaces of dynamic seal groove surfaces They may have problems F G or H hidden from view and without self cleaning tendency 2 Gradually Increasing Leakage A Progressive wear B Increasing compression set C Progressive tear or erosion from initial nick D Fine score mark on dynamic surface progressively abrades seal lip 3 Sudden Copious Leakage A Extruded seal B Torn seal see 1 D E F G H amp l and 2 D C Twisted seal D Dramatic bearing failure due to excessive side load shock etc E Spiral failure F Massive infusion of contamination due to incorrect fluid added to system or to upstream introduction of dirt or wear debris G Slow rod leakage builds up behind tight wiper then dumps giving appearance of catastrophic seal failure If leak rate continues look for slow leak or erratic leak causes If high leak rate continues look for true catastrophic leak origin H Reverse pressue blowout of piston seal due to pressure trap or failure of opposed se
45. h a damaged pressure gauge Check unloading devices to see that they are properly controlling the pump delivery Excessive Pump Wear 1 Abrasive contaminants or sludge in the fluid Check for the cause of contaminants Replace or repair worn parts according to service manual Install or change fluid filter Replace fluid with recommended grade and quality Viscosity of fluid too low or too high Replace fluid with proper grade and type Sustained high pressure above maximum pump rating Check for possible relief valve malfunction or other parts failure Air leaks or restriction in system causing cavitation Eliminate any leaks in system Drive shaft misaligned Check and correct according to technical manual specifications Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Troubleshooting Hints Leaky Pump or Motor 1 Damaged or worn shaft seal Check and replace Check for misalignment Check that chemicals in fluid are not destroying packing or seals 2 Loose or damaged parts Tighten or replace Internal Pump Parts Breakage 1 Excessive pressure above maximum limits for pump Check for parts malfunction and cause Repair according to machine technical manual 2 Seizure due to lack of fluid Check reservoir fluid level as well as fluid inlet line for restriction Check for plugged inlet filter or strainer 3 Abrasive contaminants in fluid are getting past the f
46. ide or preceding pages of this document are valid for 30 days After 30 days Seller may change prices to reflect any increase in its costs resulting from state federal or local legislation price increases from its suppliers or any change in the rate charge or classification of any carrier The prices stated on the reverse or preceding pages of this document do not include any sales use or other taxes unless so stated specifically Unless otherwise specified by Seller all prices are F O B Seller s facility and payment is due 30 days from the date of invoice After 30 days Buyer shall pay interest on any unpaid invoices at the rate of 1 5 per month or the maximum allowable rate under applicable law 3 Delivery Dates Title and Risk Shipment All delivery dates are approximate and Seller shall not be responsible for any damages resulting from any delay Regardless of the manner of shipment title to any products and risk of loss or damage shall pass to Buyer upon tender to the carrier at Seller s facility when it s on the truck it s yours Unless otherwise stated Seller may exercise its judgment in choosing the carrier and means of delivery No deferment of shipment at Buyers request beyond the respective dates indicated will be made except on terms that will indemnify defend and hold Seller harmless against all loss and additional expense Buyer shall be responsible for any additional shipping charges incurred by Seller due to Buy
47. ift cylinders may be pulled open by the weight of the load Then as the container is pulled over center the cylinders will be forced closed until they hit the column of oil inside the cylinders causing a sudden pressure surge If the lift cylinders are pulled open by the load they should be extended with the control valve to fill them with oil before pulling the container on the rest of the way Care should be taken if moving roll off unit with tilt cylinders extended avoiding sudden stops or jolts On roll off units care must be taken if a unit is moved with the lift cylinders extended Avoid sudden stops or jolts On roll off units dropping off a loaded container feather control valve to avoid any pressure surges in the reeving cable cylinders as gravity pulls the container to the ground On roll off units if the container is not evenly loaded and is heavy on one side the lift cylinders may mis stage When the plunger sleeves attempt to correct themselves there may be a sudden pressure surge possibly damaging the cylinder Check the cylinder operation to ensure the plungers extend in sequence with the largest diameter plunger moving first then the next largest etc When retracting the smallest plunger should move first then the next smallest etc Mis staging could cause the unit to upset and or damage the cylinder due to excessive pressure build up 6 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Safety
48. ilter Check for plugged inlet filter or strainer Check for malfunctioning filter bypass valve 4 Excessive torquing of housing bolts Replace damaged parts Torque to proper specifications Load Drops with Control Valve in Neutral 1 Leaking cylinder seals or fittings Replace worn parts 2 Control valve not centering when released Check linkage Check spool for binding nn Valve Sticking Binding Valve linkage misaligned Repair 2 Tie bolts too tight stack valves Loosen and retighten as necessery 3 Valve damaged Repair or replace Control Valve Leaks 1 Tie bolts too loose stack valves Tighten as necessery 2 Seals damaged or worn Replace Relief Valve Noisy 1 Relief valve setting too close to operating pressure Install pressure gauge and adjust to correct pressure 2 Worn or scored poppet and seat Replace 3 Spring in relief valve broken Replace spring and adjust to correct pressure Cylinder Seal Leakage 1 Slow Uniform Leakage A Poor low pressure sealability especially if a lip seal B Too little initial interference if squeeze type seal C Loss of interference or squeeze due to wear or compression set D Seal shrinkage after installation possibly chemi cally induced or a result of leaching of plasticizers by solvent action E Possible omission or failure of static seal s F Microscopic debris lodges under seal lip lint fiber etc G Scored lip due to passage o
49. iston moves far enough to expose the rod to corrosion or contamination Try to choose a storage location where the cylinders are protected from physical damage Even a little ding from a falling bar or forklift tine can cause trouble later Cylinders Particularly large ones should be stored closed in a vertical position with the rod end down Be sure they re blocked securely to keep them from toppling Storing with the rod ends down keeps oil on the seals which protects them from drying out This is more critical with fabric and butyl seals than with urethane sealing materials Storing single acting cylinders with the rod end up can cause port closures to pop open and leak exposing the sleeves to corrosion damage and contamination Storing with the rod end down also discourages the temptation to lift a cylinder by the rod eye a dangerous practice If horizontal storage cannot be avoided the rod or cylinder should be rolled into a new position every two months or so to prevent drying distortion and deterioration of the seals Don t forget that a cylinder can be a major source of contamination A small scratch or nick on the sleeve will quickly shred packing and contaminate the system Store cylinders carefully and keep them clean The following procedures should be followed in order to prevent oxidation and maintain the surfaces of a mounted hydraulic cylinder during idle periods These idle periods may include inventory units demo units out of se
50. ith Youngstown Ohio 44505 cylinders through out the life time e No more climbing into dirty beds of the Dump Bed 800 2400 e Fewer hydraulic repairs phone 800 848 5575 e Completely interchangeable with fax 800 694 3392 e OEM s save a minimum of 1 2 all manufacturers cylinders mcdsales parker com gallon of hydraulic oil to 4 5 e Size Range from 4 to the largest gallons of oil on 8 and 9 9 cylinders www parker com cylinders For a trailer manufacturer Reduced weight over standard selling 500 a year this would save cylinders with bleeder screws HY18 0027 US 23 625 a year ENGINEERING YOUR SUCCESS 24 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Bleederless Telescopic Purging Tag PARKER Bleederless Design Cylinder Air Purging Procedure This cylinder is designed to automatically purge any trapped air from installation Once the cylinder is mounted to the vehicle and the hydraulic system is connected purge the air by cycling the cylinder to full extension 2 3 times If air is still present as noted by the cylinder exhibiting a mushy erratic bouncing action repeat the cycling of the cylinder to full extension 2 3 times If the condition continues check all hydraulic connections for tightness before repeating Contact Parker Customer Service 330 480 8431 800 848 5575 if problem persists 3 5 9078 086 Parker Hannifin Corp Mobile Cylinder Division n
51. l dirty oil Replace clean or add as needed Air leaks Check suction line and component seals for suction leaks Repair or replace Return of tank line not below fluid level Repair or replace Inadequate baffles in reservoir Lack of anti foaming additives in oil Replace fluid with proper grade Noisy Pump 1 Air leak in intake or air is being drawn through the inlet line Hepair or make sure the inlet line is submerged in fluid in the reservoir To check for leaks pour fliud around the joints and listen for a change in sound of operation Low oil level incorrect oil foamy oil Check if oil viscosity too high or operating temperature too low Replace clean or add proper grade and type of fluid as needed With rare exception all return lines should be below fluid level in reservoir Pump inlet line or inlet screen is restricted or clogged Clean or replace as needed Reservoir breather vent clogged Clean or replace as needed Worn or damaged pump Check and correct cause of parts failure Repair or replace as needed Pump speed too fast Operate pump within recommended speed Drive coupling mis aligned Align unit and check condition of seals and bearings Misalignment will cause wear and subsequent high noise level in operation Relief or unloading valve set too high Use reliable gauge to check operating pressure Relief valve may have been set too high wit
52. ld be a clearance of 1 8 to 1 4 per side on eyes less than 5 wide and 1 4 to 1 2 clearance per side on eyes in excess of 5 wide This is to allow the body to sway slightly while dumping without putting a side load on the cylinder The cylinder plunger or one of the sleeves should be extended a minimum of 1 4 when the dump body is in the down position The cylinder end mounts should be lubricated regularly Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Safety Precautions for Double Acting Telescopic Cylinders WARNING Rollover or lateral tilt can cause severe injury or death and or damage to the unit and cylinder The hydraulic cylinder will not prevent the unit from rollover or lateral tilt The cylinder is strictly a lifting device and is not a structural member of the unit Cylinders are not to be used as a means of stabilizing the unit The hydraulic cylinder mounted in the unit should be free to find its own trajectory line of extension and retraction so as not to cause improper sequencing and excessive wear to the plungers and internal components Misalignment could cause the unit to upset On longer stroke cylinders mounted horizontally supports should be added to the center of the extended cylinder to increase the column strength of the cylinder The hydraulic cylinder will not withstand lateral pressure when the unit is leaning Only activate the cylinder when the tractor and trailer are in a str
53. nal cracks Pressurize one side of cylinder and disconnect fluid line at opposite port Observe leakage One to three cubic inches per minute is considered normal for piston rings Virtually no leak with soft seals on piston Replace cylinder barrel or seals as required Other circuit leaks Check for leaks thru operating valve and correct Correct leaks in connecting lines Incorrect Valving Open center valve with conventional single rod cylinder will creep if restriction on tank portis sufficiently high Use tandem type valve spool configuration or spool with pump dumped through one cylinder port with the other blocked Closed center valve can cause similar results except creep will be according to amount of clearance flow in the valve Proper notching of valve spool can prevent building up pressure in cylinder lines between cycles Spools with pressure blocked and cylinder ports completely relaxed will also prevent drift if no moving element is not affected by gravity or vibration Pilot operated check valves can positively lock fluid in cylinder lines Care must be exercised to insure adequate pilot pressure when rod differential may cause intensification Cylinder operates erratically or chatters 1 2 3 Telescopic cylinder sleeves mistaging Check for tight seals or bearings Excessive friction due to damaged or improper misaligned mounting Repair or replace as needed Cylinder sized too close to load
54. nd Using Hydraulic Cylinders and Their Accessories WARNING FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF CYLINDERS AND THEIR RELATED ACCESSORIES CAN CAUSE DEATH PERSONAL INJURY AND PROPERTY DAMAGE Before selecting or using Parker cylinders or related acces sories it is important that you read understand and follow the following safety information User Responsibility Due to very wide variety of cylinder applications and cylinder operat ing conditions Parker does not warrant that any particular cylinder is suitable for any specific application This safety guide does not analyze all technical parameters that must be considered in select ing a product The hydraulic and pneumatic cylinders outlined in this catalog are designed to Parker s design guide lines and do not necessarily meet the design guide lines of other agencies such as American Bureau of Shipping ASME Pressure Vessel Code etc The user through its own analysis and testing is solely responsible for e Making the final selection of the cylinders and related accessories e Determining if the cylinders are required to meet specific design requirements as required by the Agency s or industry standards covering the design of the user s equipment Assuring that the user s requirements are met OSHA require ments are met and safety guidelines from the applicable agen cies such as but not limited to ANSI are followed and that the use presents no health or s
55. nd set screws into all packing nuts and tighten with 1 8 Allen wrench Step 13 Install air release or pipe plugs as applicable 17 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Single Acting Telescopic Cylinder Operation Extending i Bottom Port To Extend High pressure oil from the pump is directed by the control valve through the port A to fill the cylinder Any air in the sys tem is trapped in the end of the cylinder B and may be bled off through the bleeder valve C Top Port a Generally bleeding is only necessary on initial start up or if air has been allowed to enter the system Note the bleeder valve must be located at the highest part of the cylinder Oil pushes on the bottom of the sleeve or plunger forcing F it to move out The outside diam eter or sealing area of the moving sleeve or plunger D determines the effective area Bottom Port Top Port A X rn X As the sleeve or plunger moves out the oil trapped be tween E the sleeve por plunger wall is re leased through trans fer holes G which are drilled in the sleeve or plunger Under normal operating conditions the largest diameter moving sleeve extends first then the next largest sleeve etc Bottom Port Top Port A d m E FORCE So at a given PSI pressure and GPM gallons per min the cylinder will develop less force and increase in speed as it changes to the ne
56. oduct features specifications designs and availability with notice to Buyer 14 Limitation on Assignment Buyer may not assign its rights or obligations under this agreement without the prior written consent of Seller 15 Entire Agreement This agreement contains the entire agreement between the Buyer and Seller and constitutes the final complete and exclusive expression of the terms of the agreement All prior or contemporaneous written or oral agree ments or negotiations with respect to the subject matter are herein merged 16 Waiver and Severability Failure to enforce any provision of this agreement will not waive that provision nor will any such failure prejudice Seller s right to enforce that provision in the future Invalidation of any provision of this agreement by legislation or other rule of law shall not invalidate any other provision herein The remaining provisions of this agreement will remain in full force and effect 17 Termination This agreement may be terminated by Seller for any reason and at any time by giving Buyer thirty 30 days written notice of termination In addition Seller may by written notice immediately terminate this agreement for the following a Buyer commits a breach of any provision of this agreement b the appointment of a trustee receiver or custodian for all or any part of Buyer s property c the filing of a petition for relief in bankruptcy of the other Party on its own behalf or by a third party
57. om the date within the warranty period on which the defect is or should have been discovered by Buyer 6 LIMITATION OF LIABILITY UPON NOTIFICATION SELLER WILL AT ITS OPTION REPAIR OR REPLACE A DEFECTIVE PRODUCT OR REFUND THE PUR CHASE PRICE IN NO EVENT SHALL SELLER BE LIABLE TO BUYER FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF OR AS THE RESULT OF THE SALE DELIVERY NON DELIVERY SER VICING USE OR LOSS OF USE OF THE PRODUCTS OR ANY PART THEREOF OR FOR ANY CHARGES OR EXPENSES OF ANY NATURE INCURRED WITHOUT SELLER S WRITTEN CONSENT EVEN IF SELLER HAS BEEN NEGLIGENT WHETHER IN CONTRACT TORT OR OTHER LEGAL THEORY IN NO EVENT SHALL SELLER S LIABILITY UNDER ANY CLAIM MADE BY BUYER EXCEED THE PURCHASE PRICE OF THE PRODUCTS 7 Contingencies Seller shall not be liable for any default or delay in performance if caused by circumstances beyond the reasonable control of Seller 8 User Responsibility The user through its own analysis and testing is solely re sponsible for making the final selection of the system and Product and assuring that all performance endurance maintenance safety and warning requirements of the application are met The user must analyze all aspects of the application and follow applicable industry standards and Product information If Seller provides Product or system options the user is responsible for determining that such data and specifica tions are suitable and sufficient for
58. opic or Displacement Cylinder Commercial has also used SA SF and H as a prefix SD Double acting Telescopic Cylinder D Double acting Piston Rod Cylinder 2 Nominal O D of the largest moving stage on Single acting and Double acting Telescopic cylinders or the Nominal Bore of Double acting Piston Rod Cylinders 3 Number of moving stages or sleeves in a Telescopic Cylinder 4 Mounting option on the body or base end of cylinder 5 Mounting option on the rod or plunger end of cylinder 6 Modification or design variation of the cylinder 7 Length of cylinder stroke in inches OUR DESIGN ADVANTAGES INCLUDE Longer sleeve overlap for improved stability and higher while making service procedures easier column loading Wave springs and chevron packing for self compensating seals Nylon tipped set screws that conform to the shape of the Hytrel rod wipers that resist higher temperatures without packing nut threads It is nearly impossible for the packing nut extrusion to back off accidentally Positive manual air bleeder prevents cavitation and mushy Snap on glass filled bearings that absorb contaminants cylinder action NOW BLEEDERLESS without damaging cylinder walls Cast steel mountings offer dependable strength Pin eye and Threaded steel stop rings for easier servicing and more rod end are welded into a single unit reliable stopping action External packing nuts give
59. party Seller s obligation to defend and indemnify Buyer is contingent on Buyer notifying Seller within ten 10 days after Buyer becomes aware of such allegations of infringement and Seller having sole control over the defense of any allegations or actions including all negotiations for settlement or compromise If a Product is subject to a claim that it infringes the Intellectual Property Rights of a third party Seller may at its sole expense and option procure for Buyer the right to continue using the Product replace or modify the Product so as to make it nonin fringing or offer to accept return of the Product and return the purchase price less a reasonable allowance for depreciation Notwithstanding the foregoing Seller shall have no liability for claims of infringement based on information provided by Buyer or directed to Products delivered hereunder for which the designs are specified in whole or part by Buyer or infringements resulting from the modification combina tion or use in a system of any Product sold hereunder The foregoing provisions of this Section shall constitute Seller s sole and exclusive liability and Buyer s sole and exclusive remedy for infringement of Intellectual Property Rights 20 Taxes Unless otherwise indicated all prices and charges are exclusive of excise sales use property occupational or like taxes which may be imposed by any taxing authority upon the manufacture sale or delivery of Products 21 Equal
60. r other major component has a failure implementing this 13 step checklist can help prevent repeat failures 1 Determine cause of failure 2 Eliminate cause of failure 3 Retract all cylinders and drain tank 4 Flush tank Using diesel fuel under pressure flush tank thoroughly and wipe with clean cloths Install new filter elements A Check to make sure filter is 10 microns or better B If machine does not have filtration install a 10 micron filter on the return line Install new component Fill the tank with new oil A Be sure recommended oil is used B NOTE You re filling the system not just the oil supply tank Pump failure due to lack of oil can result if filling is not done correctly Keep a close check on the oil level as you complete the following steps Disconnect all lines to cylinders and or motors at the cylinder or motor Be sure all implements are securely blocked and all accumulators are bled before discon necting lines NOTE It may be necessary to remove inspect and flush the fittings that are connected to the pump valves and or cylinders to remove any for eign objects that may have become lodged or stuck inside them Activate each circuit by moving control valve handle so lines are flushed with new oil This flushes the lines and valves from pump to all cylinders and motors Be sure to check oil level and add new oil if necessary 10 Connect lines to blind end of cylinders and
61. requirements Reduce load or install larger cylinder 4 Large difference between static and kinetic friction Install soeed control valves to provide back pressure to control stroke Oil Spilling Out of Tank 1 2 Oil is foaming Refer to Foaming of Oil section Oil reservoir filled while cylinders were extend Fill while cylinders in the retract or closed position Foreign Matter Sources in the Circuit 30 1 2 Pipe scale not properly removed Lines need cleaned and flushed before installation Sealing compound pipe dope teflon tape allowed to get inside fittings Use care when applying sealants 3 Improperly screened fill pipes and air breathers Repair or replace as required Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Troubleshooting Hints Burrs inside piping components Deburr before installation Tag ends of packing coming loose Check if packing is system compatible Replace packing Seal extrusions from pressure higher than compatible with the seal or gasket Replace seal or gasket with compatible item Human element Not protecting components while being repaired Repaired components not properly protected while stored Rust and other contaminants Lines left open and unprotected Wipers or boots damage or not provided Check cylinders or rams Add or replace where necessary Preventing repeat failures When a hydraulic system pump or cylinder o
62. rings Repacking kits consist of 1 Wiper Rings Ordering Information Please order by part number 5 Piston Bearings 6 Set Screws 7 Nylon Balls 2 Packing Assemblies Cylinder Model Rebuild Kit Number Repack Kit Number 553 Series A300 253 375 1804 017 A300 1 1 391 1804 020 S62 Series A300 256 3 5 1804 020 00 262 375 1804 026 563 Series A300 254 3 5 1804 018 A300 104 391 1804 109 564 Series A300 257 375 1804 021 A300 230 391 1804 237 574 Series A300 258 375 1804 022 A300 239 375 1804 003 584 Series A300 259 3 5 1804 023 A300 49 391 1804 054 585 Series A300 260 3 5 1804 024 A300 22 391 1804 060 573 Series A300 255 375 1804 019 A300 238 375 1804 002 595 Series A300 261 375 1804 025 A300 240 375 1804 004 Cylinder Packing Installation Remove shims from packing set and measure packing height under finger pressure Add one shim for each 1 32 that the packing measures under 1 1 8 Mea sure depth to top of stop ring from top of tube This dimension should be 2 1 4 however it may vary slightly due to seating of the stop ring Add one shim to the packing set for every 1 32 that this dimension measures over 2 1 4 or remove one shim from the packing set for every 1 32 that this dimension measures under 2 1 4 Install wave spring with gap edge against top of the cylinder stop ring Soak packing in hydraulic oil for a few minutes Check bottom adapter Only hard type can be used with the wave spring Install pa
63. rning as a consequence of other con ditions occurring to the machine such as but not limited to e Unexpected detachment of the machine member from the piston rod Failure of the pressurized fluid delivery system hoses fittings valves pumps compressors which maintain cylinder position e Catastrophic cylinder seal failure leading to sudden loss of pres surized fluid e Failure of the machine control system Part of selecting cylinders for a specific operation involves the proper selection of the piston rod diameter This catalogue contains informa tion in the selection of piston rod diameter which must be followed in order to avoid possible buckling Piston rods are not normally designed to absorb bending moments or loads which are perpendicular to the axis of piston rod motion These additional loads can cause the piston rod to fail If these types of additional loads are expected to be imposed on the piston rod their magnitude should be made known to our engineering department The cylinder user should always make sure that the piston rod is securely attached to the machine member Cushions Cushions are devices internal to the cylinder to slow the piston and rod assembly down at the end of the stroke It is suggested they be used to reduce piston impact at the end of the cylinder stroke when the cylinder is expected to move at relatively high velocity Cylinder cushions are normally designed to absorb the energy of
64. rol Replace or adjust as necessary Engine running too fast Reduce engine speed Overheating of Oil in System 1 Oil passing thru relief valve for excessive time 10 Return control valve to neutral when not in use System stalling under load etc Fluid viscosity too high Relief or unloading valve set too high Install pressure gauge and adjust to correct pressure Incorrect oil low oil dirty oil Use recommended oil fill reservoir clean oil replace filter element Engine running too fast Reduce engine speed Excessive component internal leakage Check stall leakage past pump valve motor cylinder or other components Repair or replace component as necessary Restriction in filters or lines Check if line I D s are too small causing high velocity Check if valvings too small causing high velocity Clean and or replace elements or lines Malfunctioning oil cooler heat exchanger Check if water is shut off if water cooled Check for clogging Clean repair Insufficient heat radiation Check for proper air circulation around reservoir Ambient temperature too high for system design Clean dirt and mud from reservoir and components Reservoir sized too small Increase reservoir size Add oil cooler or heat exchanger Reservoir assembled without or insufficient baffling Add baffling to allow fluid time to cool Foaming of Oil 1 2 Incorrect oil low oi
65. rvice units etc All machined surfaces left expose should be coated with a light film of grease if not oxidation will occur If oxidation is present apply a light coat of oil to the surfaces Buff surfaces with 320 or 400 grit sandpaper Do not buff surfaces up and down the length buff only around the circumference after buffing the surfaces show evidence of oxidation damage i e pitting the cylinder should be inspected by an authorized service center for evaluation Operation of a hydraulic cylinder with surface damage will shorten the longevity and preclude any warranty express or implied INSTALLATION Cleanliness is an important consideration and Parker cylinders are shipped with the ports plugged to protect them from contaminants entering the ports These plugs should not be removed until the piping is to be installed Before making the connection to the cylinder ports the piping should be thoroughly cleaned to remove all chips or burrs which might have resulted from threading or flaring operations One small foreign particle can cause premature failure of the cylinder or other hydraulic system components If oxidation is present apply a light coat of oil to the surfaces Proper alignment of the cylinder piston rod and its mating component on the machine should be checked in both the extended and retracted positions Improper alignment will result in excessive rod gland and or cylinder bore wear Cylinders opera
66. t discharge when a dump body is raised to an elevated position This condition exists due to surface adhesion between the commodity and the interior of the dump body To avoid a tip over due to a hung load the driver should be warned by an observer or be aware of the material s moisture content if this condition exists immediately lower the dump body The operator should stay at the controls during the entire dumping operation An operator who fails to stay at the controls will never control the body when it starts to lean over for a tip over If a problem exists and the body starts to lean the operator should immediately lower the dump body or trailer and check and remedy any potential problems then resume dumping the load It is important to slowly position the cylinder control valve into the hold position to avoid subjecting the cylinder to a high pressure Do not overload the unit The load must be distributed evenly during loading or unloading to avoid rollover and lateral tilt Loads stuck while the cylinder is partially or completely extended increases the hazard of rollover and lateral tilt Lower the dump body or trailer entirely with the cylinder control valve partially open avoid lowering the dump body or trailer with the cylinder control valve completely open Then unload the dump body or trailer manually or with an alternative mechanical aid Overloading is a very common occurrence that aggravates all the above conditions that cause a
67. tep 14 Remove stop rings from all stages with stop ring wrenches WS BA3067 series If the stop ring will not move a sharp rap may be required to jar the ring loose If the sleeve containing the stop ring turns during removal it should be held with a nylon BN strap wrench P3067 Step 15 Removal of the plunger or sleeve will lift out the stop ring and expose the piston bearing ring Use lifting ring tool series BC3067 to lift out the sleeves Step 16 Remove piston bearing ring by hand Step 17 Remove piston rings on double acting cylinders with piston ring plier M3067 3K and remove piston bearing ring or rings by hand Step 18 Repeat with remaining sleeves 15 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Telescopic Cylinder Asssembly Assembly All bores in the packing area and plunger outside diameters must be free of tool marks and scratches Polish with a fine paper crocus cloth or a Scotch Brite pad All parts should be clean and free of any contamination Start Assembly Starting with the largest sleeve Assemble piston bearings to all sleeves and plunger by hand Note use bronze piston bearing on largest sleeve if piston passes port Assemble piston rings on double acting cylinders using piston ring pliers M3067 3K Note stagger cast iron piston rings Next lubricate the piston bearing with grease Step 2 Place the sleeve into the assembly
68. ting in an environment where air drying material are present such as fast drying chemicals paint or welding splatter or other hazardous conditions such as excessive heat should have shields installed to prevent damage to the piston rod and piston rod seals 29 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Bleederless Telescopic Bleederless Telescopic Cylinders Innovative Mobile Solutions From Mobile Cylinder Division Customer Unmet Need Bleeding cylinders is a tough dirty job for the dump truck and trailer industry No one really wants to bleed the cylinder because it is a dirty dangerous and environmentally hazardous job as the mechanic must climb in and out of the dump bed to adjust the bleeder screw Failure to bleed the cylinder will result in early cylinder failure in addition to cylinder mis staging and excessive costly hydraulic repairs Solution Parker has developed a special bleed system that is incorporated into the oylinder that allows air to bleed every time the dump bed goes up and down This keeps the oylinder free of air and as a result the bleeding of oil and air is eliminated Contact Information Value Added Product Features Parker Hannifin Corporation e Fleets using Parker s high quality No air to bleed Mobile Cylinder Division cylinders will benefit by saving e No speedy dry to sweep 1775 Logan Avenue the labor charges from bleeding e No EPA to deal w
69. ting properly Is the mechanism or unit the cylinder is operating in good mechanical condition 22 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Storage and Installation STORAGE It pays to keep spare hydraulic cylinders on hand for use when you need them But you must know and follow these recommended storage practices or the cylinders can be ruined Hydraulic cylinders though often large and unwieldy are precision machines with finely finished parts and close tolerances And they re expensive So handle them with care For optimum storage life hydraulic cylinders should be kept in an environment that is protected from excessive moisture and temperature extremes A hot dry dessert climate with cold nights for example must be accommodated when choosing the storage area Daytime heat quickly bakes oil out of sealing materials which causes leaks and rapid wear when the cylinder is placed in service Cooling at night causes water condensation and corrosion damage to wear surfaces Storage areas that allow exposure to rain snow and extreme cold must like wise be avoided Its best to store cylinders indoors if possible But indoors or out be sure that plugs or closures are properly installed in all ports to keep out moisture and dirt However overtightening of port plugs should be avoided Widely varying temperatures and tightly closed ports may cause pressure inside the cylinder to build up to the point where the p
70. tip over 4 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Safety Precautions for Single Acting Telescopic Cylinders WARNING Shock pressure can cause severe injury or death and or damage to the unit and cylinder Do not use the cylinder to loosen loads stuck in the dump body or trailer Lower the dump body or trailer entirely with the cylinder control valve partially open avoid lowering the dump body or trailer with the cylinder control valve completely open Then unload the dump body or trailer manually or with an alternative mechanical aid Humping is a rapid acceleration deceleration method used to loosen a hung load from a trailer If the load is off center and the trailer is moved a tip over may occur Also serious damage to the hoist may occur if an extreme humping motion is used to get a sticky load out of the body Do not move the truck and jam the brakes while the cylinder is partially or fully extended to loosen loads stuck in the dump body or trailer Pulling forward or backing up and hitting the brakes or lowering the body part way and then quickly engaging the valve in the HOLD or RAISE position will cause a tremendous pressure spike This pressure spike may bulge or split one of the larger stages of the cylinder Lower the dump body or trailer entirely with the cylinder control valve partially open avoid lowering the dump body or trailer with the cylinder control valve completely open
71. using the proper lifting ring in the BC3067 series Step 3 GE Lubricate the stop ring with grease and slide it onto the sleeve with its wrench Zr holes up a Slide threaded stop ring onto the sleeve and lower into the assembly Thread the stop ring into the assembly with the proper stop ring wrench in ERES wm p the BA3067 series Turn the stop ring wrench counter clockwise slowly for several turns until a subtle click is heard or a slight settling of the wrench is felt This indicates that the start points of the internal and external threads are aligned for engagement Next turn the wrench clockwise until the stop ring bottoms out Bottom out stop ring with a sharp rap If sleeve turns during assembly it must be held with strap wrench P3067 Measure stop ring depth The stop ring should bottom out at a depth of 2 Ya Note Check if Beveled or Non beveled Stop Rings and Overlap Collars Do not use a Beveled Stop Ring with Non Beveled Overlap Collar or visa versa Step 4 Install wave spring with gap edge against top of the cylinder stop ring 16 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Telescopic Cylinder Asssembly Step 5 enge belor bagiin Remove shims from packing set and measure packing height under finger pressure Add one shim for each 1 32 that the packing measures under 1 1 8 Measure depth to top of stop ring from top of tube This dimension should b
72. xt moving stage Bottom Port Top Port 18 Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Single Acting Telescopic Cylinder Operation Retracting Bottom Port Top Port 4 m E M To Retract A single acting cylinder must be retracted by gravity or mechanical means F Bottom Port Top Port x a Under normal operating conditions the plunger or smallest diameter sleeve is pushed closed first forcing oil out through port A then the next smallest etc Bottom Port Top Port 4 5 Note If the top port is used the speed of the cylinder be reduced because of the oil flow restriction as the oil passes thru the transfer holes G Equip your vehicle with m 1 I Hydraulics the world s best hydraulic cylinders Parker Hannifin Corporation Mobile Cylinder Division Youngstown OH Double Acting Telescopic Cylinder Operation Extending To Extend High pressure oil is directed by the control valve into port A The oil passes through the transfer tube in the rod to the base of the cylinder The pressure acts on the effective area area of the largest piston and extends all stages to the first stop ring The next stage then begins to extend C Stop Ring u a 2222 The effective area of each stage is figured from the inside diameter of the next largest stage Each stage extends in its turn to the stop ring So at a given PSI

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