P2_P3 Service Manual #4.p65
Contents
1. Figure 24 8 Install shaft assembly into housing Shaft bearing is a slip fit and should slide easily to the bottom of the bore DO NOT hammer See figure 25 NOTE Shaft bearing is a spherical bearing and outer race can rotate off of rollers Make sure outer race is properly aligned before installing shaft Figure 25 96 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Pump Assembly P2 P3 Series Install Shaft 9 Install shaft seal carrier assembly into housing Seal Carrier behind shaft assembly Shaft seal lip must be lubricated with grease before installing shaft assembly See figure 26 NOTE Be careful not to roll the lip of the shaft seal when installing the seal carrier If the shaft is keyed remove key before install seal carrier Figure 26 Install Snap 10 Insert snap ring Ring NOTE It may be necessary to tap the snap ring down against the seal carrier with a small hammer and flat nosed punch in order to compress the seal carrier o ring and seat the snap ring Install O Ring 11 Install all o ring plugs in housing and torque Plugs Installation of 1 12 Lubricate swash plate surface with hydraulic Rotating Group fluid install rotating group over shaft line up the spline and seat rotating group against swash plate P3 Barrel shown See figure 2 Installation of 13 Apply grease to o ring and insta2. 11 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Disassembly and Inspection P2 P3 Series Preparation Before Disassembly Before you disassemble the Pump unit or any of its components read this entire manual It provides important information on parts and procedures you will need to know to service the P2 or P3 Pump Determine whether the Pump you are about to disassemble is the P2 or P3 Pump Series so you can follow those procedures that pertain to that Series Pump The first two letters of the spec number on the Pump identification tag is the Series designation Refer to Tools and Materials Required for Services section for tools and other items required to service the Pump and have them available Thoroughly clean off all outside dirt especially from around fittings and hose connections before disconnecting and removing the Pump Remove coupling shaft connections and hose fittings and immediately plug port holes and fluid lines Hemove rust or corrosion from coupling shaft Remove the Pump from system drain it of fluid and take it to a clean work surface Plug all ports and wash complete pump and remove any remaining outside dirt rust and corrosion Clean and dry the Pump before you start to disassemble the unit As you disassemble the Pump clean all parts except seals in clean petroleum based solvent and blow them dry
3. 5 Limitation Of Remedy SELLER S LIABILITY ARISING FROM OR IN ANY WAY CONNECTED WITH THEITEMS SOLD OR THIS CONTRACT SHALL BELIMITED EXCLUSIVELY TO REPAIR OR REPLACEMENT OF THE ITEMS SOLD OR REFUND OF THE PURCHASE PRICE PAID BY BUYER AT SELLER S SOLE OPTION IN NO EVENT SHALL SELLER BE LIABLE FOR ANY INCIDENTAL CONSEQUENTIAL OR SPECIAL DAMAGES OF ANY KIND OR NATURE WHATSOEVER INCLUDING BUT NOTLIMITED TO LOST PROFITS ARISING FROM ORIN ANY WAY CONNECTED WITHTHIS AGREEMENT ORITEMS SOLD HEREUNDER WHETHER ALLEGED TO ARISE FROM BREACH OF CONTRACT EXPRESS OR IMPLIED WARRANTY ORIN TORT INCLUDING WITH OUT LIMITATION NEGLIGENCE FAILURE TO WARN OR STRICT LIABILITY 6 Changes Reschedules and Cancellations Buyer may request to modify the designs or specifications for the items sold hereunder as well as the quantities and delivery dates thereof or may request to cancel all or part of this order however no such requested modification or cancellation shall become part of the contract between Buyer and Seller unless accepted by Seller in a written amendment to this Agreement Acceptance of any such requested modification or cancellation shall be at Seller s discretion and shall be upon such terms and conditions as Seller may require 7 Special Tooling A tooling charge may be imposed for any special tooling including without limitation dies fixtures molds and patterns acquired to manufacture items sold pursuant to this contract Such special
4. Bulletin HY13 1650 M1 US Piston Pumps Service Procedure P2 P3 Series Variable Volume Piston Pumps Bulletin HY13 1650 M1 USA Piston Pump Service Procedure P2 P3 Series N WARNING FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS AND OR SYSTEMS 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 authorized distributors provide product and or system options for further investigation by users having technical expertise It is important that you analyze all aspects of your application and review the information concerning the product or system in the current product catalog Due to the variety of operating conditions and applications for these products or systems the user through its own analysis and testing is solely responsible for making the final selection of the products and systems and assuring that all performance safety and warning requirements of the application are met The products described herein including without limitation product features specifications designs availability and pricing are subject to change by Parker Hannifin Corporation and its subsidiaries at any time without notice 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 acceptanc
5. WARNING petroleum base solvents are flammable Be extremely careful when using any solvent Even a small explosion or fire could cause injury or death WARNING WEAR EYE PROTECTION AND BE SURE TO COMPLY WITH OSHA OR OTHER MAXIMUM AIR PRESSURE REQUIREMENTS CAUTION Never steam or high pressure wash hydraulic components Do not force or abuse closely fitted parts Keep parts separate to avoid nicks and burrs Discard all seals and seal rings as they are removed from the Pump Replace all seals seal rings and any damaged or worn parts with genuine Parker or OEM approved service parts 89 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Disassembly and Inspection 060 075 Place pump in a vise WARNING Remove Cover Bolts NOTE Remove Cover NOTE Place pump into foot mounting bracket or a soft jawed vise if foot mount is not available If using a vise clamp firmly the pilot flange with shaft pointing down See figure 1 WARNING IF THE PUMP IS NOT FIRMLY HELD INTHE VICE IT COULD BE DIS LODGED DURINGTHE SERVICE PROCE DURES CAUSING INJURY Once the cover bolts are loosen remove pump from vise and set unit on a clean workbench See figure 2 If bushing is damaged the shaft journal may be damaged as well If journal is damaged replacement of the shaft assem bly will be necessary Check port plate for erosion scoring scratch ing or an o
6. WARNING Since they are flammable be extremely careful when using any solvent Even a small explosion or fire could cause injury or death WARNING Wear eye protection and be sure to comply with OSHA or other maximum air pressure requirements Note For ease of installation and assembly do not clamp in foot mount or vise until cover assembly installation requires torque of bolts for rear cover assembly Wash Wash housing and dry housing and install on fixture Install 1 Install stepped pins and saddle bearings in saddle housing Locate hole in saddle bearing over Bearing stepped pin See figure 17 Figure 17 94 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Pump Assembly P2 P3 Series Install Shims 2 Install shims onto link piston and keep link piston threads dry and free from oil See figure 18 Install Swash Plate 3 Lubricate saddle bearing with hydraulic oil and install swash plate assembly into housing See figure 19 Servo Piston 4 Ifseal rings were removed from servo piston Assembly reinstall making sure that the three seal rings split are 90 degrees apart from each other Check to ensure ends of seal rings are not overlapped If so adjust seal rings so they are properly aligned and no sharp edges are noticeable by touch See figure 20 NOTE Threads of servo piston and link piston must be clean a
7. tooling shall be and remain Seller s property notwithstanding 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 items sold hereunder 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 8 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 2 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 9 Taxes Unless otherwise indicated on the face hereof 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 manufac ture sale or delivery of the items sold hereunder If any such taxes must be paid by Seller or if Seller is liable for the collection of such tax the amount thereof shall be in addition to the amounts for the items sold Buye
8. Figure 45 Piston Pump Service Procedure P2 P3 Series Figure 46 Figure 47 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Disassembly and Inspection 105 145 P2 P3 Series Remove Max 15 Loosen and remove the four bolts retaining Volume Cover the maximum volume assembly and remove Assembly assembly Check for any excessive wear on the maximum volume stop and any damage to the o rings See figure 48 Remove Servo Unthread the servo piston and check for Piston excessive scoring or galling to the bore on the piston Check to make sure that all three seal rings are not damaged or broken See figure 49 Remove 16 Remove the swashplate retaining pins and Swashplate check for damage to the o rings Replace o Retaining Pins rings if necessary See figure 50 145 only Figure 50 Remove 17 Remove the swashplate check the swashplate swashplate journals and slipper running face for any scratching or galling If pump has a torque control option check the link piston for excessive wear lf a groove is present rotate link piston 180 degrees and reinstall If pump has previously been serviced and a groove is present on both sides replace link piston Chain link must be tight in both the link piston and swashplate If excessive end play is present replace swashplate assembly i Figure 51 Check wear pin for wear or g
9. Pump Service Procedure Technical Information P2 P3 Series SERVICE NOTES Use a clean lubricant compatible with the working fluid on all pump components during assembly Thoroughly clean the reservoir suction lines suction strainer drain lines etc before re installing the pump Most premature pump failures occur when contaminants from a previous failure have not been completely removed from the system or cause for previous failure is still present i e water in oil filter bypassing etc Always fill the case with the clean fluid before starting a new or service pumps fill as high as inlet port will allow on a P3 style pump For flooded suction purge air from suction lines by cracking the inlet fitting or vent gage plug on pump body This should prevent an airlock condition and allow for faster priming Starting the pump slowly by jogging or turning over engine without allowing it to start will help the pump prime and makes it easier to determine when priming has occurred Plumb P3 style pump air bleed directly to tank if pump is mounted above tank Check for proper shaft rotation if there is a possibility it may have changed during a system rebuild Start pump with an open circuit whenever possible Reduce the compensator to its minimum setting during start up Cycle the pump on and off stroke while increasing the compensator to its required setting This will assist in break in of new components and help purge air from the case
10. bore during removal of the o rings on the seal carrier may be cut when the pump is reassembled resulting in a leaking pump Remove shaft and inspect all splines of the shaft for excessive wear or damage Check rear cover bushing journal and shaft seal journal for excessive wear Inspect rollers in the bearing for damage or pitting If any defects are present in these areas discard and replace with new components If pump has the single shaft seal options a new seal may be used in the inner position if the shaft seal journal in that location has been damaged If the pump has the dual shaft seal option replace the shaft and bearing assembly See figure 45 Check and make sure bearing has not spun in the bearing bore if the bearing has spun replace the housing Turn volume adjustment screw out counter clockwise until it comes to a hard stop DO NOT use an air gun to do this If pump has torque control remove torque control cartridge and check for any damage to o rings and backup rings If the o rings and backup rings are damaged replace them See figure 46 Check ball in torque control travel seat If it is damaged replace torque control link piston may be also needed to be replaced Remove bias spring plug spring and spring guide check the cone in spring guide for excessive wear or galling Check for any damage to the o rings such as cuts nicks or heat damage If any components are damaged replace See figure 47 103
11. by Buyer net 30 days from the date of delivery of the items purchased hereunder Amounts not timely paid shall bear interest at the maximum rate permitted by law for each month or portion thereof that the Buyer is late in making payment Any claims by Buyer for omissions or shortages in a shipment shall be waived unless Seller receives notice thereof within 30 days after Buyer s receipt of the shipment 3 Delivery Unless otherwise provided on the face hereof delivery shall be made F O B Seller s plant Regardless of the method of delivery however risk ofloss shall pass to Buyer upon Seller s delivery to a carrier Any delivery dates shown are approximate only and Seller shall have no liability for any delays in delivery 4 Warranty Seller warrants that the items sold hereunder shall be free from defects in material or workmanship for a period of 18 months from date of shipment from Parker Hannifin Corporation THIS WARRANTY COMPRISES THE SOLE AND ENTIRE WARRANTY PERTAINING TO ITEMS PROVIDED HEREUNDER SELLER MAKES NO OTHER WAR RANTY GUARANTEE OR REPRESENTATION OF ANY KIND WHAT SOEVER ALL OTHERWARRANTIES INCLUDING BUT NOT LIMITED TO MERCHANTABILITY AND FITNESS FOR PURPOSE WHETHER EXPRESS IMPLIED OR ARISING BY OPERATION OF LAW TRADE USAGE OR COURSE OF DEALING ARE HEREBY DISCLAIMED NOTWITHSTANDING THE FOREGOING THERE ARE NOWARRAN TIES WHATSOEVER ON ITEMS BUILT OR ACQUIRED WHOLLY OR PARTIALLY TO BUYER S DESIGNS OR SPECIFICATIONS
12. cover housing and sealing areas WARNING WARNING SINCETHEY ARE FLAMMABLE BE EXTREMELY CAREFUL WHEN USING SOLVENT EVEN A SMALL EXPLOSION OR FIRE COULD CAUSE INJURY OR DEATH WARNING WEAR EYE PROTECTION AND BE SURETO COMPLY WITH OSHA OR OTHER MAXIMUM AIR PRESSURE REQUIREMENTS For ease of assembly do not clamp in foot mount or vise until cover assembly installa tion requires torque of bolts and ripple chamber plugs for rear cover assembly NOTE Wash Housing 1 Wash housing and dry Install Saddle 2 Installed stepped pins and saddle bearings in Bearings housing Locate hole in saddle bearing over the small diameter of the stepped pin See figure 54 Figure 54 106 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Pump Assembly 105 145 Install swashplate 9 Install swashplate 5 retaining pins 145 only Install seal rings on servo piston NOTE NOTE Install servo piston NOTE Lubricate saddle bearings with hydraulic oil and install swashplate assembly into hous ing It is very important to keep the link piston threads dry and free from oil See figure 55 Install swashplate retaining pins and torque Nose of pin fits in the slot on the side of the swashplate See figure 56 If the seal rings were removed from servo piston reinstall then making sure that the three seal ring split are 90 degrees apart from each other Check
13. installed in any of three locations in the rear cover to meet plumbing needs If the airbleed is moved to another location the o ring plug from that port must be installed in the port vacated by the airbleed Both the airbleed and o ring plug must be torgued to speci fied amount before operating the pump If any o ring plugs were removed from rear cover reinstall and torque Installation of 16 Attach compensator with four screws and Compensator torque When torquing always use diagonal pattern and repeat torque on first bolt Make sure all four o rings are present on compen sator mounting face See figure 32 Install Torque If pump is fitted with the torque control Conrol option install torque control port and torque See figure 33 Figure 33 PressureTest 17 To verify correct assembly and installation of seals pessure test the pump Block off all ports and apply air pressure to pump case as detailed on page 112 Air leak test See figure 34 Figure 34 99 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Disassembly and Inspection 105 145 P2 P3 Series Place pump in a Place pump into foot mounting bracket or vise a soft jawed vise if foot mount is not available If using a vise clamp firmly the pilot flange with shaft pointing down WARNING WARNING IF THE PUMP IS NOT FIRMLY HELD INTHE VICE IT COULD BE
14. lip of the shaft seal over when installing the seal carrier Insert snap ring Figure 63 NOTE It may be necessary to tap the snap ring down against the seal carrier with a small hammer and flat nosed punch in order to compress the seal carrier o ring and seat the snap ring Install all o ring plugs in housing and torque NOTE If pump does not have a torque control and the M6x6 set screw was removed from the torque control feed port the set screw must be reinstalled before installing o ring plug Destroke pump 10 Turn volume adjustment screw in clockwise until last thread is flush with servo cover See figure 64 11 If barrel spring washers snap ring were NOTE removed from the barrel reinstall Insert pistons into slipper retainer Lubricate swash plate surface with hydraulic fluid install rotating group over shaft line up the spline and seat rotating group against swash plate Install Fixed 12 Before installing hold down shoes make sure Figure 64 Clearance Hold all piston slippers are seated against the down Plates swashplate To do this using two screwdriv ers on either side of the barrel push the slipper retainer back until it comes to a hard stop and all the slippers are flat against the swashplate If this is not done damage to the slippers can occur when the hold down shoes are installed 109 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin
15. o rings are in place before installing See figure 59 Insert bias spring onto spring guide and bias spring plug Install in housing making sur spring guide seats properly on swash plate wear pin Compress bias spring while threading the servo plug in the bore Be careful not to cross threads Torgue bias spring plug See figure 60 Mineral based grease may be used to keep spring guide from falling out of bias spring Install shaft assembly into housing Shaft bearing is a slip fit and should slide easily to the bottom of the bore DO NOT hammer Install snap ring into bearing bore Be careful not to scratch the bearing bore with the snap ring If itis scratched the o rings on the outside of the seal carrier may not seal resulting in a leaking pump See figure 61 Shaft bearing is a spherical bearing and outer race can rotate off the rollers Make sure outer race is properly aligned before installing shaft 108 Piston Pump Service Procedure P2 P3 Series Figure 59 Figure 60 Figure 61 Figure 62 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Pump Assembly 105 145 P2 P3 Series Install seal carrier 9 Install shaft carrier assembly into housing behind shaft assembly Shaft seal lip and o rings must be lubricated with grease before installing shaft assembly See figure 63 NOTE Be careful not to roll the
16. the airbleed in the same port it was removed from and torque The standard position for the airbleed is the port next to the volume adjustment screw However it may be installed in any of the three ripple chamber ports If any o ring plugs were removed from the rear cover reinstall and torque See figure 68 It is very important that the o ring plugs and the airbleed P3 only in the ripple chamber of the rear cover are torqued properly otherwise o ring failure can occur 110 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Pump Assembly 105 145 Install compensator Install torgue control Pressure Test 16 Attach compensator with four screws and 17 18 torgue When torquing always use diagonal pattern and repeat torque on first bolt Make sure all four o rings are present on compen sator mounting face See figure 69 If pump is fitted with torque control option install torgue control into torque control port and torque See figure 70 To verify correct assembly and installation of seals pressure test pump Block off all ports and apply air pressure to pump case as detailed on page 112 See figure 71 111 Figure 70 Figure 71 Piston Pump Service Procedure P2 P3 Series Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Final Ch
17. AND THE UNIT IS RESTORED TO PARKER SPECIFICATIONS FOR THE PUMP UNIT It is the responsibility of the mechanic performing the maintenance repairs or service on a particular Pump unit to a inspect the unit for abnormal wear and damage b choose a repair procedure which will not endanger his her safety the safety of others the eguipment or the safe operation of the Pump and c fully inspect and test the Pump unit and the hydraulic system to insure that the repair or service of the Pump unit has been properly performed and that the Pump and hydraulic system will function properly 3 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Pump Design Features P2 P3 Series P2 Series Note Picture illustrates P2 060 amp P2 075 construction Torque Control Option not shown 1 Input shaft 5 Swashplate 9 Piston with piston shoe 2 Sealcarrier with shaft seal 6 Ball seat 10 Valve plate 3 Sphericalroller bearing 7 Retainer 11 Servopiston 4 Saddlebearing 8 Housing 12 Control 13 Rearcover P2 Series Piston Pump features include e New functionality adds value Parker s line of variable piston pumps are compact with a low noise level and a high self priming speed Our new pump line also boasts a unique port layout and generates less pressure pulsations than previous designs e Compact and easy to install Attaching
18. Check the filter s 20 18 14 filtration is recommended per ISO 4406 Visually check other components to see if they are loosely mounted show signs of leaks or other damage or wear Excessive heat in a hydraulic system can create problems that can easily be overlooked Every system has its limitation for the maximum amount of tempera ture After the temperature is attained and passed the following can occur Oil seal leaks loss of efficiency e pump loss of efficiency e pump failure hoses become hard and brittle e hose failure A normal temperature range means an efficient hydrau lic system Consult the manuals published by equip ment and or component manufacturers for maximum allowable temperature and hydraulic tests that may be necessary to run on the performance of the hydraulic components The pump is not recommended for hydrau lic systems with maximum temperatures above 70 C 158 F Normal working temperatures are 0 70 C 32 158 F Maximum case drain temperature is 90 C 194 F Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Troubleshooting Checklist Trouble Cause Oil Leakage 1 Hose fittings loose worn or damaged 2 Oil seal rings deteriorated by excess heat 3 Bolt loose or its sealing area deteriorated by corrosion 4 Shaft seal worn or damaged No Flow from 1 Pump not installed correctly Pump If p
19. DIS LODGED DURINGTHE SERVICE PROCE DURES CAUSING INJURY Remove Airbleed 1 Remove the airbleed from the ripple chamber P3 only port in the rear cover Use a drip pan to catch the oil that has been retained in the ripple chamber Check o rings for damage See figure 36 Figure 36 Remove O ring 2 Removetheo ring plugs from the ripple Plugs chamber port on the rear cover There is one plug on a P2 pump and two plugs on a P3 pump Use a drip pan to catch the oil that has been retained in the ripple chamber Check o rings for damage Remove Cover 3 Oncethe cover bolts are loosened it may be Bolts easier for disassembly to remove pump from vise and set unit on a clean workbench See figure 37 NOTE Cover is pre loaded by the rotating group and may separate from the housing on its own If not tap the cover away from the housing using a dead blow hammer Do Not pry cover off with a screwdriver as damage to the sealing surface may occur Figure 37 100 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Disassembly and Inspection 105 145 P2 P3 Series Remove Cover 4 Check port plate for erosion scoring scratching or an out of flat condition If port plate is damaged replace it Check bushing for excessive wear if bushing is damaged replace cover assembly See figure 38 NOTE If bushing is damaged the shaft journa
20. HY13 1650 M1 USA Piston Pump Service Procedure Pump Assembly 105 145 P2 P3 Series NOTE Reset volume adjusting Install cover Install airbleed P3 only NOTE 13 14 19 Apply loctite to the four cap screws install the hold down shoes and properly torque the cap screws Before torquing bolts make sure the slipper retainer is properly seated beneath the flange of both hold down plates See figure 65 Make sure bolts and threaded holes in swashplate are clean and free of oil before applying Loctite and installing hold down shoes Adjust volume screw full counter clockwise and install seal nut Adjust the volume screw clockwise to the distance that was measured from the end of the screw to the top of the seal nut during disassembly Torque seal nut This will reset the pump at the same dis placement as it was originally factory set Airgun should not be used Apply grease to cover o rings and install into housing See figure 66 Obtain cover assembly and check to ensure o ring has been installed in cover and port plate is in proper position and is flat on the cover Apply hydraulic oil to bushing in rear cover and place rear cover assembly onto pump NOTE When installing rear cover be careful to keep proper alignment to keep from gouging the bushing Insert cover bolts tighten evenly and torque When torquing always use crisscross pattern and repeat torque on first bolt See figure 67 Install
21. RNING REFERS TO PROCEDURE THAT MUST BE FOLLOWED FOR THE SAFETY OF THE EQUIPMENT OPERATOR AND THE PERSON INSPECTING OR REPAIRING THE PUMP Disclaimer This Service Manual has been prepared by Parker Hannifin for reference and use by mechanics who have been trained to repair and service hydraulic pumps and systems on commercial and noncommercial equipment applications Parker Hannifin has exercised reasonable care and diligence to present accurate clear and complete information and instructions regarding the techniques and tools required for maintaining repairing and servicing the complete line of Parker P2 amp P3 Pump Units However despite the care and effort taken in preparing this general Service Manual Parker makes no warran ties that a the Service Manual or any explanations illustrations information techniques or tools described herein are either accurate complete or correct as applied to a specific Pump unit or b any repairs or service of a particular Pump unit will result in a properly functioning Pump unit If inspection or testing reveals evidence of abnormal wear or damage to the Pump unit or if you encounter circumstances not covered in the Manual STOP CONSULT THE EQUIPMENT MANUFACTURER S SERVICE MANUAL AND WARRANTY DO NOT TRY TO REPAIR OR SERVICE A PUMP UNIT WHICH HAS BEEN DAMAGED OR INCLUDES ANY PART THAT SHOWS EXCESSIVE WEAR UNLESS THE DAMAGED AND WORN PARTS ARE REPLACED WITH ORIGINAL PARKER REPLACEMENT AND SERVICE PARTS
22. alling If it is worn replace swashplate assembly See figure 51 104 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Disassembly and Inspection 105 145 P2 P3 Series Remove Saddle 18 Remove both saddle bearings and both Bearings stepped pins If bearings have excessive wear replace with new components See figure 52 Figure 52 Hemove compensator assembly and check Remove the o rings for any damage and replace if Compensator necessary See figure 53 Figure 53 Remove o ring 19 Remove all remaining o ring plugs in the plugs housing and replace all o rings during assem bly 105 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Pump Assembly 105 145 P2 P3 Series Reference Exploded Assembly View Replace all seals and seal rings with new ones Each time you reassemble the pump unit lubricate all seals and o rings with petroleum jelly or light mineral based grease before assembly NOTE Seals and o rings are part of the complete seal kit Parts should be available through most OEM part distributors or Parker ap proved Pump distributors Contact your local deal for availability Wash all parts in clean petroleum based solvents before assembly Blow them dry with compressed air Remove any chips from mating surfaces of the
23. an aa seda se esee nana 53 62 P3105 Service Instructions vmsmssms kmamiarmsaamsktaa rkteakiakavassT ki vena KNTTAKSAKSTAKSNT I UPAUREHU VEN VPE IN SETA RUE AKK pR fas 63 72 P3145 Service Instructions ooooooooooousmno nnas ana a n aa ankan aknea naan ana a naa anna ana a nanna aan a aan ana ana anna anaaanan 73 82 Compensator VT OT DET 83 87 Torque Controls RR T KT e 88 Preparation for DisassemDiy im sis uunissa v letka E IER Dp is ja L ER pai Hot Rd pH pde pbi 89 Disassembly amp Inspection P2060 P2 P3075 ouousssuuussanuuu aamuun naa aan a aan a aan aan a a aan nnne nnne naan annua nananana naa aaana 90 93 Assembly P2060 P2 P3075 vammussukeottsamssaketakaa essai Uds dpa Ops Fd prvcbxRE UE Dur ER MAR Rn a nidaa aa FoU Km aU A 94 99 Disassembly amp Inspection P2 P3105 145 1 essaie erre khu raa FR ERR d ARR ORA ERE ER ERR PERI tao Roy DEIN Ra 100 105 ASR PPS TOSTA assa sanoinaan em ven pU PS MEM pub Ano DF dU HERD HAS RR IS TA 106 111 Final Checks amp Requirements ooooooussooonnso oonan eaa ana aan a aan ana aan nana aan a ana a aa aan naan aan a aan ana naa aa aan a aa aan rroen renn 112 Tips for Maintaining ESS DET mem 119 Offer of Sale CERTI 119 Definitions NOTE A NOTE provides key information to make a procedure easier or quicker to complete CAUTION A CAUTION refers to procedure that must be followed to avoid damaging the Pump or other system components WARNING A WA
24. ce Procedure Tips P2 P3 Series Tips for Maintaining the Pump Hydraulic System e Donotcombine case drains or control drains with any other pressure return or case return lines Plumb directly tank overpressurization of pump case will shorten pump life or cause component failure e Adjust fluid level in reservoir as necessary e Encourage all operators to report any malfunction or accident that may have damaged the hydraulic system or component e Donotremove or circumvent any pump control lock outs e Donotattemptto weld any broken Pump component Replace the component with original equipment only e Donotcold straighten hot straighten or bend any Pump part e Prevent dirt or other foreign matter from entering the hydraulic system Clean the area around and the filler caps before checking oil level e Investigate and correct any external leak in the hydraulic system no matter how minor the leak e Comply with manufacturer s specifications for cleaning or replacing the filter CAUTION Do not weld braze solder or any way alter any Pump component CAUTION Maximum operating pressure must not exceed recommended Pump pressure capacity CAUTION Always carefully inspect any system component that may have been struck or damaged during operation or in an accident Replace any component that is damaged or that is questionable CAUTION Do not force any coupling onto the Pump coupling shaft as this could damage the unit internally Pa
25. e are governed by the provisions stated in the Offer of Sale Copyright 2002 Parker Hannifin Corporation All Rights Reserved 2 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Table of Contents P2 P3 Series Big a AEAN EEEE ANAE E A POOe me 3 Dosign TETUER 4 5 AAEE E o a E issa asia Se AA EE A EEE A ESE EE E E AEI TE EEE E AE A 6 Troubleshooting Guide NN NIORT m T Troubleshooting Checklist RET 8 9 Tools and Material Required for Servicing ousssossosuus sonnan naan eene nnne eaa nnns aan naa a naan naan aaaanaaean 9 Technical Information RD OTET 10 11 P2060 Service Instructions eese mI eI emen nnm nnn nn anann EAE ana aan aa ana aa na nananana asse sese se esae sana 13 22 P2075 Service Instructions Loscusenxexiteteuakoeen FER MdXeReETU ME nPUS ER PER I PES EXTR PR PURA IEEE P ESEUIF EE UP ERR VEN PARI URNA EE MEE Un iax 23 32 P2105 Service Instructions s oooooooooooummmn innon nannaa naan aan aa annakaan kaan aa ana an aan aan aan aa anna aa sedes ana anaaanan 33 42 P2145 Service Instructions oooooooooouunmni nannaa eee en naan anna naa hne naan naan a nananana aan aa aan ana anna nnana nennt 43 52 P3075 Service Instructions ssooooooooooounmnni nnas ana a konkon korron nnn nn aa aka a naa ana anna a n aan aan a a
26. e swash plate journals and slipper running face for any scratching or galling If pump has a torque control option check the link piston for excessive wear If a groove is present replace link piston Chain link must be tight in both the link piston and swashplate If excessive clearance is present replace swashplate assembly See figure 13 Hemove both saddle bearing and stepped pins If bearings have excessive wear replace with new components See figures 14 Remove compensator assembly and check the o rings for any damage and replace if necessary See figure 15 93 Piston Pump Service Procedure Figure 12 Figure 14 Figure 15 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Pump Assembly 060 075 P2 P3 Series Reference Exploded Assembly View Replace all seals and seal rings with new ones Each time you reassemble the pump unit lubricate all seals and o rings with petroleum jelly or light mineral based grease before assembly Note Seals and o rings are part of the complete seal kit Parts should be available through most OEM part distributors or Parker ap proved Pump Distributors Contact your local dealer for availability Wash all parts in clean petroleum based solvents before assembly Blow them dry with compressed air Remove any paint chips from mating surfaces of the cover housing and sealing areas
27. ecks P2 P3 Series Final Checks e Pressurize the Pump with 2 bar 29 psi dry air or nitrogen and submerge in solvent to check for external leaks e Use test stand if available to check operation of the Pump Hydraulic Fluid Premium hydraulic fluid with a normal operating viscosity range between 15 40 cSt 80 100 SUS Maximum viscosity is 1000 cSt 4600 SUS for short periods Minimum viscosity is 10 cSt 60 SUS for short periods Oil should have maximum antiwear properties rust and oxidation inhibitors CAUTION Do not mix oil types Any mixture or an unapproved oil could deteriorate the seals Maintain the proper fluid level in the reservoir When changing fluid completely drain old oil from the system It is suggested also that you flush the system with clean oil Filtration For maximum pump and system component life fluid contamination should be limited to 20 18 14 according to ISO 4406 Due to the nature of variable volume pumps pump inlet conditions types of fluids and duty cycles must be considered before specifying suction filtration Contact Parker Representative for assistance Oil Temperature Normal working fluid temperature in tank 0 70 C 32 F 158 F Maximum operating case drain control drain temperature 90 C 194 F Cold start temperature 40 C 40 F 112 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Servi
28. eparing as follows e work in a clean well lighted place e have proper tools and materials nearby e have an adequate supply of clean petroleum based solvent WARNING SINCE SOLVENTS ARE FLAMMABLE BE EXTREMELY CAREFUL WHEN USING ANY SOL VENT EVEN A SMALL EXPLOSION OR FIRE COULD CAUSE INJURY OR DEATH WARNING WEAR EYE PROTECTION AND BE SURE TO COMPLY WITH OSHA AND OTHER MAXIMUM AIR PRESSURE REQUIREMENTS Preliminary Checks Hydraulic systems are often trouble free Hence the problem an operator complains of could be cause by something other than the hydraulic components Thus once you have determined that a problem exists start with the easy to check items such as parts damaged from impact that were not properly repaired or that should have been replaced and improper replacement parts used in previous servicing mechanical linkage problems such as binding broken or loose parts or slipping belts Hydraulic Components If you think the problem is caused by a hydraulic component start by checking the easy to reach items Check all hoses and lines for cracks hardening or other signs of wear Reroute any usable hoses that are kinked severely bent or that rest against hot engine parts Look for leaks especially at couplings and fittings Replace any hoses or lines that don t meet system flow and pressure ratings Next go to the reservoir and filter or filters Check fluid level and look for air bubbles
29. he reservoir Is compensator setting backed out If load sense is there a load sense pressure signal Is the system relief valve vented Assure orifices in control are not plugged Assure control spools springs are assembled correctly If non torque control pump assure m 6x6 set screw is installed in torque control feed port Repair component CAUTION If the hydraulic system fluid becomes overheated in excess of 90 C 194 F seals in the system can shrink harden or crack thus losing their sealing ability Parker Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Troubleshooting Checklist P2 P3 Series Trouble Cause Remedy Pump won t Control is malfunctioning Clean orifices in control of contamination Confirm compensate orifice and plugs are properly assembled If torgue control pump is saturation orifice in place Tools and Materials Reguired for Servicing Clean petroleum based solvent Vise with soft jaws Air pressure source Arbor press Screw driver Breaker bar Torque wrench Nm ft lbs Range 0 425 Nm Adjustable crescent wrench Fluid mineral oil ISO VG 32 40 C Clean corrosion resistant grease oil or petroleum jelly Hex bits and Allen Keys or T handle Metric 3mm 5mm 6mm 8mm 10mm 12mm and 14mm SAE 1 8 5 32 3 16 3 8 1 2 9 16 and 5 8 Sockets deepwall Metric 17mm 19m
30. heck mating surface on shaft If shaft is damaged replace with new seal in inner location for single shaft applica tions Pump with dual shaft seals replace both shaft seals and shaft Remove snap ring that retains the shaft and bearing assembly in the pump housing Be careful not to scratch bearing bore when removing snap ring If snap ring scratches the bearing bore during removal of the o rings on the seal carrier may be cut when the pump is reassembled resulting in a leaking pump 91 Piston Pump Service Procedure P2 P3 Series Figure 6 Figure 7 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Disassembly and Inspection 060 075 P2 P3 Series Remove Shaft 6 Remove shaft and inspect all splines of the shaft for excessive wear or damage Check rear cover bushing journal and shaft seal journal for excessive wear Inspect rollers in the bearing for damage or pitting If there are any defects in these areas discard and replace with new components If pump has the single shaft seal option a new seal may be used in the inner position if the shaft seal journal in that location has not been damaged If the pump has the dual shaft seal option and is damaged replace the shaft See figure 8 Figure 8 NOTE Check and make sure bearing has not spun in the bearing bore if so housing must be replaced Remove Torque If pump has to
31. impeller P3 offers significantly higher self priming speeds than competitive designs and the capability to operate the pump successfully at high elevations without the need for pressurized reservoirs Unique port layout with both operating ports on the same side of the pump resulting in more accessible plumbing Built in air bleed valve for automatic priming of the pump at start up 5 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Introduction This service manual has one purpose to guide you in maintaining troubleshooting and servicing the P2 amp P3 series piston pumps Material in this manual is organized so you can work on the Pump and get results without wasting time or being confused To get these results you should read this entire manual before you begin any work on the Pump This manual also contains troubleshooting information and checklist If you must service the Pump the checklist will help you to determine where the problem may be The three column format of the Disassembly and Inspection and Assembly sections will make it easier for you to conduct work on the Pump Column 1 gives a brief key for each procedure Column 2 explains in detail the procedure you should follow Column 3 illustrates this procedure with photographs Read all material carefully and pay special attention to the notes cautions and warnings Pages with the various pum
32. istributors are hereby offered for sale at prices to be established by Parker Hannifin Corporation its subsidiaries and its authorized distributors 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 such items when communicated to Parker Hannifin Corporation its subsidiary or an authorized distributor Seller verbally orin writing shall constitute acceptance of this offer 1 Termsand Conditions of Sale All descriptions guotations proposals offers acknowledgments acceptances and sales of Seller s products are subject to and shall be governed exclusively by the terms and conditions stated herein Buyer s acceptance of any offer to sell is limited to these terms and conditions Any terms or conditions in addition to or inconsis tent with those stated herein proposed by Buyer in any acceptance of an offer by Seller are hereby objected to No such additional different or inconsistent terms and conditions shall become part of the contract between Buyer and Seller unless expressly accepted in writing by Seller Seller s acceptance of any offer to purchase by Buyer is expressly conditional upon Buyer s assent to all the terms and conditions stated herein including any terms in addition to or inconsistent with those contained in Buyer s offer Acceptance of Seller s products shall in all events constitute such assent 2 Payment Payment shall be made
33. l may be damaged as well If journal is damaged replacement of the shaft assem bly will be necessary Figure 38 Destroke Pump 5 Using calipers measure the distance from the top of the volume adjustment screw to the top of the seal nut and record this dimension Resetting the volume screw to the height during pump reassembly will return the pump to the factory set displacement Remove seal nut and turn volume adjustment screw in clockwise until last thread is flush with the top of the servo cover plate See figure 39 Figure 39 Remove Impeller 6 Fora P3105 slide impeller off of barrel P3 Only For a P3145 remove the six shoulder bolts from the barrel impeller face and slide the impeller off of barrel See figure 40 NOTE If impeller does not slide freely off barrel remove the barrel and impeller as one unit in the next step Once the barrel is out of the pump use a dead blow hammer and lightly tap on the back side of the impeller and remove it from the barrel Figure 40 Remove Barrel 7 nspectthe barrel for any scoring or scratch ing to the barrel face and for worn or dam aged splines Inspect the piston bores for scoring or galling If any of the bronze sleeves are damaged or cracked replace barrel See figure 41 Figure 41 101 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Disassembly and I
34. ll into hous Housing Cover ing See figure 28 Assembly Figure 28 97 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Pump Assembly NOTE Install Cover Bolts NOTE 14 Insert cover bolts tighten evenly and torgue P2 P3 Series Obtain cover assembly and check to ensure o ring has been installed in cover and port plate is in proper position and is flat on the cover Apply hydraulic oil to bushing in rear cover and place rear cover assembly onto pump See figure 29 When installing rear cover be careful to keep proper alignment to keep from gouging the bushing On a P2060 or a P2075 the outlet on the rear cover is oriented toward the servo piston Figure 29 On a P3075 the outlet in the cover must be oriented on the same side of the pump as the housing inlet When torquing always use crisscross pattern and repeat torque on first bolt If any o ring plugs were removed from rear cover reinstall and torque See figures 30 Figure 30 On a P3075 if the airbleed was removed from the rear cover reinstall and torque See figure 31 Figure 31 98 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Pump Assembly P2 P3 Series NOTE The airbleed comes in a standard position from the factory but can be
35. m 32mm or 36 mm and 38 mm SAE 9 16 and 1 Internal snapring pliers small and large Boxend wrench 13mm 1 2 17mm deep offset Pencil magnet Loctite 242 CAUTION Mixing greases that have different bases can be detrimental to bearing life 9 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Technical Information P2 P3 Series CONVERSIONS mm INCHES 0 4 0157 0 8 0314 1 0 0393 1 2 0472 1 6 0629 2 0 0787 3 0 1181 4 0 1574 5 0 1968 10 0 3936 15 0 5905 20 0 7873 25 0 9842 25 4 1 000 Torgue Chart Nm ft Ibs Nm 2 0 1 48 30 0 4 0 2 95 35 0 50 3 68 40 0 10 0 17 37 45 0 11 0 8 11 50 0 12 0 8 85 55 0 13 5 10 0 60 0 20 0 14 75 65 0 25 0 18 43 70 0 Temperature C 0 56 F 32 oF 1 8 C 32 Pressure 1 PSI 06896 Bar 1 Bar 14 5 PSI Length 1 inch 0 0394 x 1mm 1mm 25 4 x 1 inch Torque 1 Ft Lb 0 738 x 1 N m 1 In Lb 8 85 x 1 N m 1 N m 2 0 113 x 1 In Lb ft Ibs 22 12 25 81 29 50 33 19 36 87 40 56 44 25 47 94 51 63 Nm 75 0 80 0 85 0 90 0 95 0 100 0 125 0 150 0 200 0 10 ft lbs 55 32 59 00 62 69 66 38 70 06 13 76 92 19 110 63 147 51 Nm 250 0 300 0 350 0 400 0 450 0 ft Ibs 184 39 221 27 258 15 295 02 331 90 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston
36. nd free of oil prior to assembly Apply one drop of Loctite 242 to third interior thread of servo piston See figure 21 Wipe excess loctite off bottom of servo piston and make sure loctite will not run out of servo piston in the servo bore of the pump housing 95 Figure 18 Figure 19 Figure 20 Figure 21 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Pump Assembly P2 P3 Series Installation of 5 Apply light film of oil to exterior of servo Servo Piston piston Install servo piston into servo bore Align the link piston by hand and thread the servo piston onto link piston DO NOT over tighten Torgue servo piston to proper value See figure 22 NOTE DO NOT use excessive oil Be careful to keep oil out of the interior threads of the servo piston and off of the threads on the link piston Figure 22 NOTE Step 6 amp 7 MUST be performed in the following order or damage to the servo bore may occur Install Servo 6 Thread servo plug assembly into servo bore Plug and torque servo plug See figure 23 Install Bias Spring 7 Insert bias spring onto spring guide and bias and Plug spring plug Install in housing making sure spring guide seats properly on swash plate wear pin Torque bias spring plug See figure 24 NOTE Mineral based grease may be used to keep spring guide from falling out of bias spring
37. nspection 105 145 P2 P3 Series Remove the 4 8 Removethe two fixed clearance hold down screw from the plates Inspect hold down plates for wear or slipper retainer galling If hold down plates worn more than hold down plates 0 1mm replace See figure 42 Remove the 9 Inspectthe piston slippers for smearing pistons slipper scratching or rolling Inspect pistons for retainer galling or scratching Inspect slipper retainer for an out of flat condition or wear If any component is damaged replace the rotating group See figure 43 Figure 43 Remove snap ring 10 Look for any damage such as nicks cuts or and Seal carrier heat damage to seal and o rings around the assembly O D of the seal carrier See figure 44 NOTE If damage to shaft seal has occurred make sure to check mating surface on shaft If shaft is damaged replace the shaft seal with a new seal in the inner location for single shaft applications For pumps with dual shaft seals replace both shaft seals and shaft Figure 44 102 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Disassembly and Inspection 105 145 Remove Shaft 11 Snap Ring NOTE 12 Remove torque 13 control Remove bias 14 spring Remove snap ring that retains the shaft and bearing assembly in the pump housing Be careful not to scratch bearing bore when removing snap ring If snap ring scratches the bearing
38. p sizes exploded assembly view are provided several places in this manual The Piston Pump Service Procedure P2 P3 Series component part names and item numbers assigned on these exploded assembly views correspond with names and item numbers in parentheses used in the disas sembly and assembly procedures set forth in this manual Service part list charts are also provided in this manual with the part names and exploded view item numbers cross referenced to Parker service part numbers Service parts are available through the Original Equip ment Manufacturer or Parker approved P2 amp P3 Dis tributors As you gain experience in servicing the Pump you may find that some information in this manual could be clearer or more complete If so let us know about it Do not try to second guess the manual If you are stuck contact us Servicing the Pump should be a safe and productive procedure in order for the unit to deliver the reliable long life operation engineered into it Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Troubleshooting Guide Piston Pump Service Procedure P2 P3 Series NOTE Before troubleshooting any system problem check service literature published by the equipment and or component manufacturers Follow their instructions if given for checking any component other than the Pump unit Preparation Make your troubleshooting easier by pr
39. r agrees to pay all such taxes or to reimburse Seller therefore upon receipt of its invoice If Buyer claims exemption from any sales use or other tax imposed by any taxing authority Buyer shall save Seller harmless from and against any such tax together with any interest or penalties thereon which may be assessed if the items are held to be taxable 10 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 Part 10 Seller will defend and indemnify Buyer against allegations of infringement of U S Patents U S Trademarks copyrights trade dress and trade secrets hereinafter 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 an item sold pursuant to this contract infringes the Intellectual Property Rights of a third 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 an item sold hereunder is subject to a claim that it infringes the Intellectual Property Rights of a third party Selle
40. r may at its sole expense and option procure for Buyer the right to continue using said item replace or modify said item so as to make it noninfringing or offer to accept return of said item and return the purchase price less a reasonable allowance for depreciation Notwith standing the foregoing Seller shall have no liability for claims of infringe ment based on information provided by Buyer or directed to items delivered hereunder for which the designs are specified in whole or part by Buyer or infringements resulting from the modification combination or use in a system of any item sold hereunder The foregoing provisions of this Part 10 shall constitute Seller s sole and exclusive liability and Buyer s sole and exclusive remedy for infringement of Intellectual Property Rights If a claim is based on information provided by Buyer or if the design for an item delivered hereunder is specified in whole or in part by Buyer Buyer shall defend and indemnify Seller for all costs expenses or judgments resulting from any claim that such item infringes any patent trademark copyright trade dress trade secret or any similar right 11 Force Majeure Seller does not assume the risk of and shall not be liable for delay or failure to perform any of Seller s obligations by reason of circumstances beyond the reasonable control of Seller hereinafter Events of Force Majeure Events of Force Majeure shall include without limitation accidents ac
41. rker extends close technical cooperation and assistance If problems occur which you cannot solve please contact your local Parker approved Distributor or Parker Technical Support Our phone number and fax number and address are on the back cover of this manual e Before adjusting pump differential or torque control settings contact factory 143 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Notes P2 P3 Series 114 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Notes P2 P3 Series 115 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Notes P2 P3 Series 116 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Notes P2 P3 Series 117 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Notes P2 P3 Series 118 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Offer of Sale The items described in this document and other documents or descriptions provided by Parker Hannifin Corporation its subsidiaries and its authorized d
42. rque control remove torque Control if present control cartridge and check for any damage to o rings Check ball in torque control travel seat If damaged replace torque control link piston may also need to be replaced if it is worn See figure 9 Remove bias 7 Remove bias spring plug spring and spring spring plug guide Check the cone in spring guide for excessive wear or galling Check for any damage to the o rings such as cuts nicks or heat damage See figure 10 Remove Max 8 Remove maximum volume assembly and Volume Assembly check for any excessive wear on the maxi mum volume stop and also any damage to the o ring See figure 11 NOTE If maximum volume stop is adjusted or removed while servicing the pump resetting of pump displacement will be necessary Figure 11 92 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Disassembly and Inspection 060 075 Remove Servo Piston Remove swash plate Remove saddle bearing and stepped pins Remove 4 Compensator Mounting Bolts 9 10 11 12 P2 P3 Series Remove servo piston and check for exces sive scoring or galling to the bore or on the piston itself Check to make sure that all three seals rings are not damaged Make note to how many shims are under the servo piston Pump must be rebuilt using the same number of shims See figure 12 Remove the swash plate check th
43. this pump to your machinery is easy because of its compact design and unique port layout Normally it will not require an offset gearbox which will lower the total installation cost Less noise to insulate The rigid housing design combined with the reduced pressure ripple decreases airborne as well as hydraulic generated noise These features will significantly reduce the need for costly insulation Reliable High self priming speed and the reduced pressure ripple increase the service life of the pump while lowering maintenance costs of the system Flexible The modular design of the P2 line will readily accommodate future control variations Adjustable maximum displacement stop is standard Inlet and outlet gage ports are standard 4 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Piston Pump Service Procedure Pump Design Features P2 P3 Series P3 Series Note Picture illustrates P3 075 construction 1 Inputshaft 6 Slipperretainer 11 Servopiston 2 Sealcarrier with shaft seal 7 Ballseat 12 Compensatorcontrol 3 Sphericalrollerbearings 8 Housing 13 Rearcover 4 Saddlebearing 9 Impeller 14 Airbleed 5 Swashplate 10 Piston assembly 15 Torguecontrolcartridge P3 Series Piston Pump features include All the same advantages of the P2 Series namely a reliable compact package with very low noise levels e Because of the unique built in
44. to ensure the ends of the seal rings are not overlapped If so adjust seal rings so they are properly aligned and no sharp edges are noticeable by touch See figure 57 Make sure the threads of servo piston and link piston are clean and free of oil prior to assembly Apply one drop of loctite 242 to interior threads of servo piston Wipe excess Loctite off bottom of servo piston and make sure the Loctite will not run out of servo piston into the servo bore or pump housing Apply light film of oil to exterior of servo piston Install servo piston into servo bore Wipe excess oil from hands and align the link piston by hand and thread the servo piston onto link piston DO NOT tighten servo piston above specified torque Damage to the chain link may occur See figure 58 DO NOT use excessive oil Be careful to keep oil out of the interior threads of the servo piston and off of the threads on the link piston 107 Piston Pump Service Procedure P2 P3 Series Figure 45 Figure 58 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Pump Assembly 105 145 NOTE Install servo cover 6 Install bias spring NOTE Install shaft and snapring NOTE Install Snap Ring Steps 6 amp 7 MUST be performed in the following order or damage to the servo bore may occur Install servo cover onto servo bore and torgue the four cap screws Make sure all
45. ts of God strikes or labor disputes acts laws rules or regulations of any government or government agency fires floods delays or failures in delivery of carriers or suppliers shortages of materials and any other cause beyond Seller s control 12 Entire Agreement Governing Law The terms and conditions set forth herein together with any amendments modifications and any different terms or conditions expressly accepted by Seller in writing shall constitute the entire Agreement concerning the items sold and there are no oral or other representations or agreements which pertain thereto This Agreement shall be governed in all respects by the law of the State of Ohio No actions arising out of the sale of the items sold hereunder or this Agreement may be brought by either party more than two 2 years after the cause of action accrues 9 91 P 119 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Parker Hannifin Corporation 2745 Snapps Ferry Road Greeneville TN 37745 USA Tel 423 639 8151 FAX 423 787 2418 www parker com pumpmotor P2 P3 4 2002
46. ump does not prime in 30 seconds STOP 2 Pump not getting oil Can t Build Any 1 Flow has an unrestricted path Pressure Can only build a 1 Pump control settings too low few hundred PSI 20 30 bar 2 Control is malfunctioning 3 Internal leakage in cylinders valves motors or pumps Piston Pump Service Procedure P2 P3 Series Remedy Check amp replace damaged fittings or O Rings Torque to manufacturers specifications Replace oil seal rings by disassembling Pump unit a Loosen then tighten single bolt to torque specification b Replace bolt a If pump is single shaft seal option Remove seal carrier from pump Remove damaged seal from seal carrier If shaft is worn install new seal in the inner position Reinstall seal carrier b If pump is dual shaft seal option Remove seal carrier from pump If shaft is damaged or worn replace shaft and seals If shaft is not damaged replace seals and reinstall seal carrier NOTE Check fluid leaking from housing weep hole to better determine which seal has failed If pump is leaking hydraulic fluid the inboard seal has failed If the pump is leaking trans mission fluid the outboard seal has failed Check proper drive rotation Make sure pump shaft is turning i e drive coupling is engaged Check for sources of suction leaks inlet flange tight Pinched o rings Make sure reservoir is full of oil Is it an open circuit to t
47. ut of flat condition If port plate is damaged replace it Check bushing for excessive wear if bushing is damaged replace cover assembly See figures 3 amp 4 Cover is pre loaded by the rotating group and may seperate from the housing on its own If not tap the cover away from the housing using a dead blow hammer Do Not pry cover off with a screwdriver as damage to the scaling surface may occur 90 Piston Pump Service Procedure P2 P3 Series Figure 1 Figure 2 Figure 3 Figure 4 Parker Hannifin Corporation Hydraulic Pump Motor Division Greeneville Tennessee US Bulletin HY13 1650 M1 USA Disassembly and Inspection 060 075 Remove Rotating 3 Group NOTE Remove snap ring 4 and seal carrier assembly NOTE Remove shaft 9 snap ring Inspect the barrel face for any scoring or scratching Inspect barrel for worn or damaged splines Inspect the piston slippers for smearing scratching or rolling Remove the pistons from barrel inspect each piston and piston bore for scoring and galling Inspect the ball seat and slipper retainer for scoring and galling If any component is damaged replace rotating group P3 Barrel shown See figure 5 On a P3075 if the impeller is damaged replace barrel assembly Look for any damage such as nicks cuts or heat damage to seal and o rings around the O D of the seal carrier See figures 7 amp 8 If damage to shaft seal has occurred make sure to c
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