P1/PD18, 28, 45 Service Manual
Contents
1. compared to load or to compensator instability caused by back pressure worn parts set too high compared to relief worn parts for fluid needs heat exchanger water turned off or too little flow water too hot fan clogged or restricted efficiency reduced by mud or scale deposits intermittent hydraulic fluid flow reservoir too little fluid improper baffles insulating air blanket that prevents heat rejection heat pickup from adjacent equipment Parker Hannifin Corporation Hydraulic Pump Division 8 Marysville Ohio USA Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Notes P1 PD Maintenance 18cc 28cc 45cc Parker Hannifin Corporation Hydraulic Pump Division Marysville Ohio USA 9 Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps 18cc amp 28cc Pump Exploded View P1 PD Maintenance 18cc 28cc 45cc Parker Hannifin Corporation Hydraulic Pump Division 10 Marysville Ohio USA Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps 45cc Pump Exploded View P1 PD Maintenance 18cc 28cc 45cc e EE IER S M Parker Hannifin Cor orporatio Hydraulic Pump Division Mar arysv ville Ohio USA 11 Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Pump Exploded View Parts amp Descriptions P1 PD Maintenance 18cc 28cc 45cc Mem Qty 018 Part 028Part 045Part Model Code Description if 4 210x209 Toten serium godetheadcapsew B2. mm sec x 1 0 cSt 20 cSt 99 SSU pressure psi x displacement in rev x mech eff 2n rpm x in rev x psi x overall eff 395934 pressure bar x displacement cm rev 20r x mech eff rpm x cm rev x bar 600000 x overall eff rpm x cm rev x volumetric eff 1000 1000 x flow rate Lom x volumetric eff displacement cm rev pressure bar x displacement cm rev x mech eff 207 rpm x cm rev x bar x overall eff 600000 34 Parker Hannifin Corporation Hydraulic Pump Division Marysville Ohio USA Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Notes P1 PD Maintenance 18cc 28cc 45cc Parker Hannifin Corporation Hydraulic Pump Division Marysville Ohio USA 35 Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Notes P1 PD Maintenance 18cc 28cc 45cc Parker Hannifin Corporation Hydraulic Pump Division 36 Marysville Ohio USA Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Notes P1 PD Maintenance 18cc 28cc 45cc Parker Hannifin Corporation Hydraulic Pump Division Marysville Ohio USA 37 Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Notes P1 PD Maintenance 18cc 28cc 45cc Parker Hannifin Corporation Hydraulic Pump Division 38 Marysville Ohio USA Bulletin HY28 2665 02 SVC EN Offer of Sale Medium Duty Axial Piston Pumps P1 PD Maintenance 18cc 28cc 45cc The items described in this document a
3. 280 bar 1 6 lpm 2 3 Ipm 5 3 Ipm Case leakage when compensated at 280 bar 3 75 lpm 3 95 lpm 6 7 lpm Input Torque when compensated at 280 bar 17 5 Nm 21 2 Nm 1 Output Flow when pressure reduced to 273 bar 30 Ipm 47 pm 77 1pm with compensator set at 280 bar minimum minimum minimum PERFORMANCE SPECIFICATIONS PUMP WITH PRESSURE COMPENSATOR STEP REFERENCE CONDITION REQUIRED VALUE MEASURED VALUE 1 Set the pump speed to 1800 RPM 1800 rpm 2 Increase pump pressure compensator adjustment to WA maximum Record input oil temperature 43 54 C 110 130 F SAA Set output load pressure to minimum 4 see performance chart Record output flow 5 Set output load pressure to 280 2 bar 4060 30 psi Record output flow H Record case leakage see performance chart NN Set pressure compensator to 280 x 2 bar 4060 x 30 psi a Record case leakage see performance chart L9 Record input torque see performance chart 10 11 Reduce output pressure to 273 2 bar MO 3960 30 psi Record output flow P 12 NE CEN Verify no external leaks No leakage permitted Parker Hannifin Corporation Hydraulic Pump Division 32 Marysville Ohio USA Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Model Code Ordering Information P1 PD Maintenance 18cc 28cc 45cc Pump Type Shaft Shaft Shaft Seal Design Additional Displacement Thru Drive Special Series Options Seal Rotation Material Lev
4. Duty Axial Piston Pumps General Information P1 PD Maintenance 18cc 28cc 45cc START UP PROCEDURE START UP PROCEDURE FOR NEW INSTALLATION Head and understand the instruction manual Identify components and their function Visually inspect components and lines for possible damage Insure that all necessary ports are properly connected Check reservoir for cleanliness Drain and clean as required Check fluid level and fill as required with filtered fluid to a minimum ISO cleanliness level of 20 18 14 Fill pump case with clean oil prior to starting e f pump is mounted vertically with the shaft up bleed the air out the D1 drain port located near the mounting flange e Check alignment of drive e Check oil cooler and activate it if included in circuit Check fluid temperature e Reduce pressure settings of compensator and relief valve Make sure accurate pressure readings can be made at appropriate places e f solenoids in system check for actuation e Jog the pump drive Check for proper shaft rotation Make sure pump fills properly e Start the pump drive Bleed system of air Recheck fluid level e Cycle unloaded machine at low pressure and observe actuation at low speed if possible Increase pressure settings gradually in steps Check for leaks in all lines especially in pump and motor inlet lines e Make correct pressure adjustments e Gradually increase speed Be alert for trouble as indicated by changes
5. Insert shaft assembly into the pump Section A A housing with the bearing sliding into the bearing diameter in the housing Install internal retaining ring into the housing L KAS Cylindrical Bearing 4 If barrel hold down spring was removed during disassembly process install three pins to slots in barrel spline 45 Size only Petroleum jelly can be used to hold pins in place while installing remaining parts Figure 4 Place barrel on fixture with pin side down Install backup washer and hold down spring and second back up washer Compress spring in press and install snap ring Caution Make sure snap ring is properly seated in groove prior to removing barrel from press Axial movement fe i Ill Figure 4 Parker Hannifin Corporation Hydraulic Pump Division Marysville Ohio USA 25 Darker Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Assembly Procedure P1 PD Maintenance 18cc 28cc 45cc 5 Apply a light film of oil into the piston bores Lightly lubricate the spherical surface of the guide ball Install the nine pistons into the bores in the hold down plate Install the spherical guide ball into the hold down plate While holding the guide ball against the hold down plate install the pistons into the barrel Install the locating pin on the port block face For 045 Apply Loctite Primer Grade T to guide threads and allow to dry Install unlubricated o rings on the control guide and bias guide Ap
6. disassembly should be done only as far as necessary to complete conversion Disassembly and reassembly should be performed in a clean environment Caution Spring assemblies in the pump are normally set under high compression and bodily injury may occur if caution is not taken during disassembly It is usually not necessary to replace spring 20 fitted in cylinder barrel Do not replace the spring unless absolutely necessary After disassembly the internal parts should be coated with a film of clean oil and protected from dirt and moisture It is recommended that the length of the protruding portion of the compensator adjusting screws on the control 38 be measured and noted as this information will prove useful during assembly Care must be taken to avoid dropping damaging or contaminating the machined parts and the control valve For complete overhaul all o rings and seals should be discarded and replaced 1 Identify the pump from information on the data tag Figure 1 D Don i ua Premise Figure 1 Parker Hannifin Corporation Hydraulic Pump Division 20 Marysville Ohio USA Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Disassembly Procedure P1 PD Maintenance 18cc 28cc 45cc 2 Drain fluid from housing Fluid drained from pump should be disposed of properly 3 Mount pump in fixture to prevent movement while removing main housing bolts 4 Remove bolts holding the compensator assembly
7. 04V 9 3 904v 9 ORing Parker Hannifin Corporation Hydraulic Pump Division Marysville Ohio USA 13 Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Pump Exploded View P1 PD Maintenance 18cc 28cc 45cc Item No 03E 93181 0 pE R123 Volume Stop Plug 695 0001 1 0 P ER12 3 O Ring 618 15023 0 P ER1 2 3 Back Up Ring 695 00908 0 P ER12 3 O Ring O3E 94736 0 03E 95170 0 03E 93262 0 p E RY 3 Max Volume Stop Rod OSE 95217 0 03E 95358 0 03E 93262 0 p E R2 3 Min Volume Stop Rod 2 488 35018 0 P 045 U E RO Plug a Not Shown Tenis 3 4 5 6 7 8 9 9 50 Parker Hannifin Corporation Hydraulic Pump Division 14 Marysville Ohio USA Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Seal Kits and Parts Kits P1 PD Maintenance 18cc 28cc 45cc Thru Drive Pad and Coupling Model Code Thru Drive Couplings O Ring AAA 08 05 SAE A Thru Drive 9T Spline 03E 94942 0 695 00237 0 SAE A Thru Drive 11T Spline 03E 94943 0 695 00237 0 SAE B Thru Drive 13T Spline 03E 94945 0 695 00243 0 SAE BB Thru Drive 15T Spline 03E 94361 0 695 00243 0 ModelCode os 028 045 Adjustable Displacement Kits pet eS S2E 19203 5 S2E 19204 5 S2E 19114 5K S2E 18709 5K S2E 19198 5K S2E 19066 5K Torque Limiter Control Kits Model Number 018 028 O04 Torque Limiter Kit for AMT Control P 045AMT S2E 19102 5 Torque Limiter Kit for ALT Control P O45ALT Note A
8. 2 M48x2 38 25mm BSPP 1 4 3 8 SAE B M27x2 1 4 1 2 SAE B M33x2 DIN51 25 1 4 1 2 M12x1 5 M42x2 M12x1 5 M48x2 38 25mm M12x1 5 BSPP M42x2 BSPP M48x2 38 25mm BSPP Case to Inlet Check Valve Port Type 4 Bolt Flange P 45 Only No Case Check RRs 4 Bolt Flange P 45 Only With Case Check Threaded Ports No Case Check Code 018 Shaft Options 028 Shaft Option 045 Shaft Option Threaded Ports With Case Check 01 SAE A 11T Spline SAE B B 15T Spline SAE B B 15T Spline 02 SAE 19 1 Key 75 Dia SAE Key 1 Dia B B SAE Key 1 Dia B B ISO DIN Key 20mm Dia ISO DIN Key 25mm Dia ISO DIN Key 25mm Dia SAE A 9T Spline Emo qe o fos sAEBt 3T Spline SAE B 13T Spline Lo None CC adustabie Maximum Displacement Adustabie Minimum Displacement 3 Adjustable Max amp Min Displacement Displacement adjustment not available on thru drive Displacement Adjustment Code Pa R Side Ports with Ripple Chamber AE Pilot Operated Pressure Limiter Control with Proportional Electronic Adjustment 12V _ Side Ports with Thru Drive 45 only AF Pilot Operated Pressure Limiter Control with Proportional Electronic Adjustment 24V AN Pilot Operated Control with ISO 4401 NG6 Interface and Shipping Cover AM Pilot Operated Pressure Limiter Control with Mechanical Adjustment and Vent Port Not a functional control as shipped See con
9. 4 Examine the retainer plate in the area of contact with the piston shoes Any marks beyond light polishing indicate that replacement is necessary Check the surface of the spherical area of the retainer plate and the spherical guide ball Inspect the back surface of the spherical guide ball where the load pins make contact If indentations are present replace the guide ball 5 Examine cam on top and bottom surface If scratches or gouges appear to penetrate the surface treatment the cam must be replaced 6 The cam bearings cannot be reworked and should be replaced if worn through the Teflon surface 7 Both the bias piston and the compensator piston should move freely in their respective bores The pistons and bores should be free of scratches or gouges 8 The seal area of the drive shaft should be smooth and not have marks due to seal wear Keyed shafts should be inspected for signs of brinelling and damage to the key area Splined shafts may have a contact wear pattern but should not show excessive wear on the spline area NOTE Spinning on shaft for P1 PD 018 028 and 045 the cylindrical bearing should not have any signs of roller spalling brinelling or discoloration The bearing should be free to rotate without bind or rough feel COMPENSATOR INSPECTION NOTE The compensator is supplied as an assembly Individual parts are not available If there is significant damage to any of the parts the complete compensator will need to be repl
10. 4338 0 pamel Dutilon 24 1 787002 _ 03E 94385 0 03E 94348 0 palSeat S 25 1 786994 03E 94384 0 03E 943470 Slipper Retainer 26 9 Seekits SeeKis Seekits Paan Assembly X Parker Hannifin Corporation Hydraulic Pump Division 19 Marysville Ohio USA Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Pump Exploded View Parts amp Descriptions P1 PD Maintenance 18cc 28cc 45cc EXPLODED VIEW COMPONENTS CONTINUED Progr Key for 02 Shafts 27 Key For 04 ISO Shafts 28 1 S2E 18416 0 S2E 18414 0 S2E 18412 0 Dante jee 31 2 03E 94359 0 O3E 94359 0 03E 943590 Bearing Retainer Orifice Screw 32 2 03E 94432 0 03E 94395 0 03E 94358 0 Cam Bearing 0 33 NA NA NA fWuing NotSodSepaatly 34 2 108X6 108X8 488 35055 0 ORingBosPlg 0 35 2 3 906V 9 6950090080 69500910 O Ring SS 36 1 787140 P2 060 3304 620 82125 5 Shaft Seal Viton 256x585 256X544 356 05158 0 Retaining Ring Internal m 50 2 324 80024 0 324 30024 0 324 30014 0 Dowel Pin Cover 0 51 1 216 10013 789814 230 82227 0 Bushing Port Block 52 1 230 82514 0 789815 _ 230 82516 0 Cylindrical Roller Bearing 53 1 256x222 256X221 356 65159 0 Retaining Ring External 54 1 256x544 256x544 ma Retaining Ring Interna 55 1 108x4 108X4 10884 O Ring Boss Plug 3 9
11. 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 Sellers facility Le 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 Buyer 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 defects in material or workmanship for a period of eighteen months from the date of delivery to Buyer The prices charged for Sellers 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 WARRANTY PERTAINING TO PRO
12. D FLUIDS VISCOSITY INDEX TEMPERATURE MAINTENANCE FLUID CLEANLINESS Parker Hannifin Corporation Hydraulic Pump Division Marysville Ohio USA These pumps are designed to operate in any position The pump shaft must be in alignment with the shaft of the source driver and should be checked with a dial indicator The mating pilot bore and coupling must be concentric This concentricity is particularly important if the shaft is rigidly connected to the driven load without a flexible coupling Splined The shafts will accept a maximum misalignment of 0 15mm 0 005 inch total indicator reading Angular misalignment at the external and internal spline axis must be less than 0 002 mm per mm of shaft radius 0 002 inches per inch of shaft radius The coupling interface must be lubricated PARKER recommends lithium molydisulfide or similar grease The internal coupling should be hardened to Rc 27 34 and must conform to SAE J498c class 5 flat root side fit Keyed High strength heat treated keys must be used Replacement keys must be hardened to 27 34 Rc The key corners must be chamfered 0 81 1 0 mm 0 032 0 040 at 45 to clear radii that exist in the keyway The P1 PD series is designed for inline drive Side loading on the shaft is not recommended If this is unavoidable consult your nearest PARKER representative Connect inlet and outlet lines to the port block of the pump The maximum case pressure is 2 bar 30 psi continuous 4 ba
13. DUCTS PROVIDED HEREUNDER SELLER DISCLAIMS ALL OTHER WARRAN TIES EXPRESS AND IMPLIED INCLUDING MERCHANTABILITY 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 asserted 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 from 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 PURCHASE 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 SERVICING USE OR LOSS OF USE OF THE PRODUCTS OR ANY PART THEREOF OR FOR ANY CHARGES O
14. L control can be converted from AM control with spool conversion kit S2E 19117 0 Parker Hannifin Corporation Hydraulic Pump Division Marysville Ohio USA 15 Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps C Compensator P1 PD Maintenance 18cc 28cc 45cc Outer spring used CO only p Am dp d I Inner spring used for both CO and C1 versions NOTE Individual parts are not available The compensator is sold as a complete assembly only Compensator Repair Part Number CO 80 280bar 1150 4000 psi C1 20 80 bar 300 1150 psi S2E 17904 5 T S2E 18285 5 T S2E 17905 5 T S2E 18286 5 T TI e Compensator body CCW rotation ce 3 feo Jegen mersping S Spring seata pison JI 1 Seaipiston ong JI Spring caporing Il 10 31 Adustingscrew SCs Socket set screw Loctite 242 3 4 0 4 N m 30 x 3 in Ibs 5 0 0 3 N m 45 3 in Ibs SAE 2 o ring See Hardened SAE 2 o ring boss plug 4 0 0 6 N m 35 5 in Ibs Orifice plug Loctite 242 3 4 0 4 N m 30 3 in Ibs ov 4 Teflon Oring LI 18 1 Ronin 19 1 nn AA Parker Hannifin Corporation Hydraulic Pump Division 16 Marysville Ohio USA Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps L Compensator P1 PD Maintenance 18cc 28cc 45cc NOTE Individual parts are not available See Notes The compens
15. Parker Hannifin Corporation Hydraulic Pump Division 28 Marysville Ohio USA Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Assembly Tools P1 PD Maintenance 18cc 28cc 45cc 133 mm 5 250 in 18 5 mm 0 728 in D 8 0 mm 0 3150 in 3 0mm RADIUS 12 in A 31 2 mm DIA 1 250 in DIA 1 5mmx45 TYP 06in X45 T1 Seal installation tool SCC EC EE 5 0 00mm E 4 0 05mm 0 05 DIA BORE 40 002 0 000 in DIA 4 0 002 in BLEND RADIUS amp POLISH O D T3 Seal Guard A B m 76 20 mm 50 80 mm Es zi mm Seege E 7 mm m m mm 76 20 mm 50 80 mm 19 05 mm 28 82 mm 16 76 mm P28 P45 01 02 04 76 20 mm 50 80 mm 19 05 mm 15 de 38 10 mm 26 00 mm Shafts 3 00in 2 00in 75 in 9 150in 1 024in 76 20 mm 50 80 mm 19 05 mm 28 82 mm 22 50 mm Parker Hannifin Corporation Hydraulic Pump Division Marysville Ohio USA 29 Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Assembly Tools P1 PD Maintenance 18cc 28cc 45cc T2 Front Bearing P1 PD45 Installation Tool mm in SS 177 80 a 0 787 7 00 i A 89 75 29 92 50 80 3 53 1 178 2 00 MEE Y 25 40 1 00 T5 Rear Bushing Installation Tool mm in 101 60 A lt lt 400 _ A 19 05 25 40 50 80 B 0 75 1 00 2 00 n PumpSize A 18 3 71 mm 19 96 mm 0 146 in 0 786 in 4 00 mm 21 97
16. R 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 responsible 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 specifications are suitable and sufficient for all applications and reasonably foreseeable uses of the Products or systems 9 Loss to Buyer s Property Any designs tools patterns materials drawings confiden tial 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 proper
17. aced 1 Inspect the main compensator spool and the load sense spool for scratches or other damage Inspect the springs for proper free extension length see chart Inspect the spool bores for damage Apply a light oil film on the appropriate spool and check its fit in the bore The spool should fit snugly in housing and not have any radial play Parker Hannifin Corporation Hydraulic Pump Division Marysville Ohio USA 23 Darker Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Rework Limits P1 PD Maintenance 18cc 28cc 45cc Chart 1 Rework Limits Item Number Component 018 Part No 028 Part No 045 Part No Barrel O3E 94387 0 OSE 94350 0 13 Bias Sprin OSE 94430 0 OSE 94393 0 O3E 94356 0 pring 78 3 mm 87 5 mm 116 4 mm Free Height 2mm Measure OD in 3 Max End Play Max End Play Max End Play P aces top middle and bottom Measurement 0 10 mm 0 07 mm 0 10 mm should not vary by 26 Piston Min Shoe Min Shoe Min Shoe mike Wen OAK Flange Flange Flange End Play between Thickness Thickness Thickness sion andshoe shouid 2 97 mm 3 98 mm 498mm P not exceed value shown Measure piston bore ID in 3 places top middle bottom Mea surement should not 23 Barrel 03E 94717 0 03E 94375 0 03E 94338 0 EIN by more than 0 01 mm Max material to be removed by lapping is 0051 mm P Max CO Compensator PREIA S00 Free Height 2mm 39 mm Spring Outer P Max CO Compensator Use ee Free Hei
18. aerospace climate control electromechanical filtration fluid amp gas handling pneumatics process control sealing amp shielding L NM d Lis A P1 PD Series 18cc 28cc 45cc Medium Duty Axial Piston Pumps Variable Displacement Service Information Bulletin HY28 2665 02 SVC EN Effective April 01 2010 ENGINEERING YOUR SUCCESS The product information specifications and descriptions contained in this publication have been compiled for the use and convenience of our customers from information furnished by the manufacturer and we can not and do not accept any responsibility for the accuracy or correctness of any description calculation specifica tion or information contained herein No such description calculation specification or information regarding the products being sold has been made part of the basis of the bargain nor has same created or amounted to an express warranty that the products would conform thereto We are selling the goods and merchandise illustrated and described on this publication on an as is basis and disclaim any implied warranty including any warranty of merchantability or warranty of fitness for any particular purpose whatsoever with respect to the goods and mer chandise sold All manufacturer warranties shall be passed on to our customers but we shall not be responsible for special indirect incidental or consequential damages resulting from the use of any of the products
19. ator is sold as a complete assembly only AO e Dod spring P LO and f versions only Inner spring used LO L1 L2 and L3 versions Compensator Repair Part Number LO 80 280bar 1150 4000 psi L2 80 280bar 1150 4000 psi CCW S2e 178245T 92E 18586 57_ AA CCW S2E 179385T BSPP S2E 17937 5 T CCW j S2E 179365T Parker Hannifin Corporation Hydraulic Pump Division Marysville Ohio USA 17 Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps L Compensator sectional view P1 PD Maintenance 18cc 28cc 45cc CNIS SDS 7 VA LA demum SN ALIS Coa DA 7 Ce ZZAN Oo bo S D OO koi VSS LLLL 8 1 Main Compensator Spring cap o ring 9 1 Main Compensator Spring cap 115 7 N m 85 5 ft lbs 10 2 Adjustingscrew S S 13 1 Load Sense Compensator Spring cap or ing ring 15 1 Load Sense Compensator Piston Oring 16 1 Load Sense Compensator Seal Piston Z o Z 17 1 Loadsense compensator spring S 18 1 Loadsense compensator spring seat 19 1 Loadsensecompensatorspool 20 1 Socket set screw Loctite 242 3 4 0 4 N m 30 x 3 in Ibs Socket set screw LO versions Loctite 242 21 1 Orifice L2 versions 3 4 0 4 N m 30 3 in Ibs SAE 2 o ring boss plug 4 0 0 6 N m 35 5 in lbs SAE 2 o ring Ed Harden
20. dually increase pump speed to 1800 30 rpm with no load 8 Screw in compensator adjusting screw until it bottoms out with no pressure on system load relief valve 9 Break in pump at times and pressures listed below Adjust the load relief valve to the pressure listed for the times indicated After break in reduce compensator setting to 280 bar 4060 psi and adjust system load relief to cause pump to compensate three times to verify that pump compensates on and off stroke properly Pressure 62 69 Bar 200 207 Bar 269 276 Bar TEST CIRCUIT 900 1000 psi 2900 3000 psi 3900 4000 psi Test pump Test stand prime mover Pump pressure gauge Non compensating flow control Load pressure gauge Load relief valve Safety bypass relief valve Main flow meter Case drain pressure gauge 10 Case drain flow meter 11 Filter assembly with bypass 12 Cooler assembly with bypass 13 Reservoir PO CO ODE AN COL IM om NOTE Items 4 and 5 are required for load sense pump test Circuit 1 Parker Hannifin Corporation Hydraulic Pump Division Marysville Ohio USA eh Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Test Procedures P1 PD Maintenance 18cc 28cc 45cc PERFORMANCE SPECIFICATIONS PUMP WITH PRESSURE COMPENSATOR STEP Rated Speed 1800 1800 1800 Output Flow at minimum pressure p 2 So minimum minimum minimum Output Flow at rated pressure of 280 bar oo zm cm minimum minimum minimum 1 Case leakage at rated pressure of
21. e OH 43040 USA phone 937 644 4435 fax 937 642 3639 www parker com
22. ed SAE 2 o ring boss plug 4 0 0 6 N m 35 5 in lbs Teflon O ring o Roll pin S 5 0 0 3 Nem 45 3 in Ibs Parker Hannifin Corporation Hydraulic Pump Division 18 Marysville Ohio USA Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps AL AM AN AE AF Compensator P1 PD Maintenance 18cc 28cc 45cc NOTE Individual parts are not available The compensator is sold as a complete assembly only Compensator Repair Part Number OW S2E 18745 5T S2E 18743 5T S2E 19107 5T S2E 18747 5T S2E 18749 5T CCW S2E 18746 ST S2E 18744 5T S2E 19108 5T S2E 18748 5T S2E 18750 5T Note To convert AM to AL use conversion kit S2E 19117 0 Torque to 5 0 Nm 45 in Ibs a e SH Js 91 N N LIMY nw KO e HI 690 x 0995 AW AS CCW DIRECTION OF ROTATION CW AN Control See lm Parker Hannifin Corporation Hydraulic Pump Division Marysville Ohio USA Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Disassembly Procedure P1 PD Maintenance 18cc 28cc 45cc Pump disassembly for inspection should be limited to the following cases a Malfunction or oil leakage resulting from damage or wear and tear b Trouble shooting procedures previously listed do not solve the problem For rotation change or shaft conversion
23. ek SA End Ported SAE Tread NA NA ESCE Port Block S A End Ported SAE Flange wk Wa NA Pa Pe SA Er rore are ead KEE al wm PR an Iw NA PSR Bon Block SA Side Pored SAE Fengs NA NA NA P AMB R Port Block S A Side Ported Metric Thread NA NA NA P AMB R 0 Port Block S A Side Ported Metric Flange NA NA NA __ P S TOOA PortBlock S AThruDriveSAEA NA NA NA P S TO0B Port Block S A Thru Drive SAEB ii mew ww eene opsteet OOO 5 2 108XeV en 108X2V Netto on port block O Ring Boss Plug 7 1 299x67 _ 324 30014 0 324 30014 0 Metric Split Spring Pin 8 3 605100170 605 10017 0 605 10017 0 O Ring 10 2 ma ma 695009320 Ring S 11 1 03E 94427 0 03E 94390 0 03E 943550 Bias Guide 12 1 03E 94428 0 03E 94391 0 03E 943540 Bias Piston ooo 13 1 03E 94430 0 03E 94393 0 03E 94356 0 Bias Spring 0 00 14 1 03E 94427 0 O3E 94390 0 03E 94353 0 Control Guide o o 15 1 03E 94426 0 03E 94389 0 03E 94352 0 Control Piston 17 1 230 82515 0 789815 230 82227 0 Shaft Bearing 19 1 256x521 256x525 356 65144 Retaining Ring Internal 20 1 787635 _ 03E 94387 0 03E 94350 0 Gerd Hold Down Spring 21 2 786996 03E 94388 0 03E 94351 0 Barrel Hold Down Washer 22 3 787000 03E 94386 0 03E 94349 0 pBamePin 23 1 03E 94717 0 O3E 94375 0 03E 9
24. el Control Adjustment Mounting Pad Features Displacement Mounting Application Control Options amp Coupling amp Ports Options Port C Orientation Inlet Check Valve Design Level Current Design Series Seal Material 5 Fluorocarbon wien s masa FU Tue universal Available on 45 cc S Mounting amp Port Option Pumps only Shaft Rotation R Clockwise Open circuit variable displacement Code Shaft Seal ea ingle Shaft Seal Code Series Pt Mobile PD Industrial Code Paint 00 No Paint PB Black Paint Displacement 18 cc rev 1 10 in rev 28 cc rev 1 71 in rev 45 cc rev 2 75 in rev Special Features 00 No Special Features M2 Special Modification Thru Drive Mounting Pad Code ET Coupling No Thru Drive SAE 82 2 A Pilot amp SAE A 9T Coupling A SAE 82 2 A Pilot amp SAE A 11T Coupling SAE 101 2 B Pilot amp SAE B 13T Coupling SAE 101 2 B Pilot amp SAE B B 15T Coupling For 045 only Mounting amp Ports See Catalog Table for Complete Information Code 018 018 018Aux 028 028 028 Aux 045 0454Bolt 045 Aux Mount Threaded Ports Mount Threaded Ports Threaded Flange Ports 82 2 SAE SAE 101 2 SAE SAE 101 2 SAE 38 25mm SAE 16 12 4 6 SAE B 20 12 4 8 SAEB 24 16 Code 61 4 10 M33 27 BSPP 101 2 M42x2 BSPP 101
25. eller 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 employees 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 omission 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 product 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 agre
26. ements 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 custo dian for all or any part of Buyers property c the filing of a petition for relief in bankruptcy of the other Party on its own behalf or by a third party 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 conse
27. ght 2mm 26 mm Spring Inner LO Load Sense O3E 93825 0 Free Height 2mm Spring 14 mm Parker Hannifin Corporation Hydraulic Pump Division 24 Marysville Ohio USA Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Assembly Procedure P1 PD Maintenance 18cc 28cc 45cc For major overhauls all plugs should be removed and the seals replaced Prior to assembly all parts should be thoroughly cleaned Assembly should be performed in a clean work environment Do not use bearing grease during installation Grease does not dissolve in hydraulic oil and may plug orifices or filters in the system Clean petroleum jelly is preferred to lubricate o rings and seals and to adhere parts for assembly NOTE For fluids other than petroleum based hydraulic oil insure that petroleum jelly is compatible with the fluid If not compatible another product should be used instead Inspect all bearing surfaces and seal areas to insure that they are free from nicks dings scratches and rust 1 The P1 PD 018 028 and 045 assembly will use step 2 to install the shaft seal For P1 PD 018 028 and 045 front bearing installation go to step 3 2 Turn housing over Using installation tool T1 press the shaft seal in the seal bore Install the snap ring into the groove in the seal housing bore 3 Install cylindrical bearing on pump shaft slip fit Install external retaining ring to hold bearing in place on the shaft
28. in sounds system shocks and air in fluid e Equipment is operational Parker Hannifin Corporation Hydraulic Pump Division A Marysville Ohio USA Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Trouble Shooting P1 PD Maintenance 18cc 28cc 45cc Component problems and circuit problems are often interrelated An improper circuit may operate with apparent success but will cause failure of a particular component within it The component failure can be the effect not the cause of the problem This general guide is offered to help in locating and eliminating the cause of problems by studying their effects effect of trouble fault which needs remedy noisy pump air in fluid leak in inlet line low fluid level turbulent fluid return lines above fluid level gas leak from accumulator excessive pressure drop in the inlet line from a pressurized reservoir inlet line strainer acting as air trap cavitation in fluid too cold rotating group fluid too viscous fluid too heavy shaft speed too high inlet line too small inlet strainer too small inlet strainer too dirty operating altitude too high inlet pressure too low misaligned shaft faulty installation distortion in mounting axial interference faulty coupling excessive overhung loads mechanical fault piston and shoe looseness or failure in pump bearing failure incorrect port plate rotation eroded or worn parts in the displacement control erosion on barrel air in fl
29. mm 0 157 in 0 865 in 4 00 mm 24 97 mm 0 157 in 0 983 in Parker Hannifin Corporation Hydraulic Pump Division 30 Marysville Ohio USA Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Test Procedure P1 PD Maintenance 18cc 28cc 45cc PUMP TEST PROCEDURE Test criteria based on hydraulic oil ISO 32 per Parker HF 0 specifications Oil temperature 50 C 2 C 120 F 10 F NOTE insure that the hydraulic system does not overheat during this test procedure Operating speed 0 2300 rpm 30 rpm Case pressure Maximum 14 5 psi 1 bar 1 Mount pump on test fixture Insure that shaft alignment is within specified tolerances 2 Fill case with clean oil Connect upper drain port to reservoir with no restrictions Insure other drain ports are properly plugged 3 Connect inlet and pressure lines Insure that lines are filled with oil Refer to circuit below For units with L compensators connect a suitable pilot line from port X to the pump discharge pressure line down stream of the non compensating flow valve 4 Confirm direction of rotation for pump and drive are correct 5 Reduce the main compensator setting to minimum For units with L compensators advance the load sense compensator adjustment until it bottoms out and lock into position 6 Setmaximum volume stop if included to full displacement If minimum volume stop is included back adjustment all of the way out 7 f possible gra
30. nd other documents and descriptions provided by Parker Hannifin Corporation Hydraulics Group and its authorized distributors 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 Sellers 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 Buyers order or any other document issued by Buyer 2 Price Adjustments Payments Prices stated on the reverse side 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
31. nsator housing bore Torque the main compensator spring cap to 169 183 Nm 125 135 ft Ib Apply a light film of oil on the main compensator spool the longer of the 2 spools Insert the spool into the spool bore opposite the main compensator spring assembly in the compensator body The rounded end of the spool should be installed first so it will contact the spring seat Install a new o ring on the hardened SAE boss fitting and place it into the port Torque fitting to 4 0 5 Nm 37 5 in Ib Apply a light film of oil to the o ring on the load sense seal piston Install the load sense compensator seal piston seat in the load sense spring cap Install the load sense spring over the seal piston Position the spring seat over the spring Install this assembly into the load sense bore of the compensator housing Torque the load sense spring cap to 35 38 Nm 26 28 ft Ib Apply a light film of oil to the load sense compensator spool the shorter of the 2 spools Insert the spool into the spool bore opposite the load sense spring assembly The spool should be installed with the rounded end in first so it will contact the load sense spring seat Install a new o ring on the hardened SAE boss fitting and place it into the port Torque fitting to 4 0 5 Nm 37 5 in Ib Install o rings on remaining SAE boss fittings and install into housing Torque SAE 2 fittings to 4 0 5 Nm 37 5 in Ib Load Sense Spool Main Compensator Spool
32. nts 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 Intel lectual Property Rights of a third party Sellers 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 pr
33. o ring boss access plugs Proceed to inspection section of this manual Parker Hannifin Corporation Hydraulic Pump Division 05 Marysville Ohio USA Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Inspection P1 PD Maintenance 18cc 28cc 45cc INSPECTION Carefully clean and dry all parts prior to inspection Refer to chart 1 for dimensional information regarding allowable tolerances 1 Examine piston diameters for scratches or gouges If any piston is severely damaged note which piston bore it came out of Extra attention should begiven to that bore in step 2 Check end play of piston shoe assembly Checkthe bottom surface of the shoes for damage The shoe surface should besquare and flat Measure the depth of the pocket of the shoe Shoes may belapped as a set if the pocket depth is within allowable limits Confirm pocketdepth after lapping to insure it is still within limits 2 Examine bores in cylinder for scratches Check diameter of bores in 4different locations including near the bottom of the barrel where the pistondoes not travel If the dimensions vary by more than 0 0102 mm 0 0004 in or any di mension exceeds the allowable limit the barrel needs to bereplaced Examine the barrel face for scratches and gouges The barrel canbe reworked if dimen sions are with specifications listed in chart 1 3 The port plate can be lapped lightly if the face is only lightly scratched otherwise it should be replaced
34. ocure for Buyer the right to continue using the Product replace or modify the Product so as to make it noninfringing 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 combination 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 Opportunity Clause For the performance of government contracts and where dollar value of the Products exceed 10 000 the equal employment opportunity clauses in Executive Order 11246 VEVRAA and 41 C F R SS 60 1 4 a 60 741 5 a and 60 2504 are hereby incorporated 2010 Parker Hannifin Corporation all rights reserved Bulletin HY28 2665 02 SVC EN Effective 4 10 Parker Hannifin Corporation Hydraulic Pump Division 14249 Industrial Parkway Marysvill
35. on the pump housing Additional fluid may drain out of the passages when the compensator is removed Set compensator aside for later disassembly and inspection Remove the bolts attaching the port block to the main housing Carefully remove the port block Use caution to avoid dropping the port plate Note the location of the bias spring piston assembly and the control piston assembly The control piston bias piston and bias spring may remain in pump when port block is removed Remove and discard the three white Teflon seals on the port block These seals should be replaced each time the pump is disassembled 7 Remove the control piston and the bias piston spring assembly NOTE For rotation change only do not disassemble further proceed to step 16 8 Position the pump horizontally and remove the rotating group Avoid separating the pistons from the barrel if possible This will assist in identifying damage between an individual piston and bore during component inspection De Large Pocket Pressure control side of pump Figure 2 Parker Hannifin Corporation Hydraulic Pump Division Marysville Ohio USA 21 Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Disassembly Procedure P1 PD Maintenance 18cc 28cc 45cc DISASSEMBLY PROCEDURES 9 Remove Cam from housing eontnues 10 Remover cam bushing screws and cam bushings from pump 11 Remove snap ring in housing and shaft bearing assembly 12 If comple
36. or informa tion contained or described on this publication Further we reserve the right to revise or otherwise make product improvements at any time without notification A warning USER RESPONSIBILITY FAILURE OR IMPROPER SELECTION OR IMPROPER 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 authorized 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 selection of the system and components 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 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
37. ply Loctite 271 to guide threads For left hand rotation the bias guide is installed near Pump Control and bias est to the dowel pin figure 5A For right hand rotation the control guide is guide torque installed nearest to the dowel pin figure 5B Torque the control and bias guides as specified in Chart 3 For 018 028 The guides are identical and press fit into the holes Not shown in picture below 142 N M 105 ft Ibs X ontrol Piston d Guide Figure 5A Figure 5B Port Block with Left Port Block with Right Hand configuration Hand configuration Apply light oil film to control piston and install it in the control guide bore Apply light oil film to the bias piston Install the bias spring and the bias piston in the bias piston guide bore 10 Apply a light layer of petroleum jelly to the back surface of the port plate Install the port plate on the port block lining up the slot on the port plate with the locating pin Ref Figure 6 11 Install the large o ring in the groove on the port block Install the three teflon o rings on the pressure communication ports of the port block 12 Install the cam bearings in the cradle area of the housing The chamfer on the back of the bearing must face the outer wall of the housing Use Loctite Primer Grade T or other suitable primer on screws and mating threads in housing Apply Loctite 242 use sparingly to screw threads and install orifice screws to hold bearings in place Torque
38. r 60 psi intermittent The case pressure must never exceed inlet pressure by more than 5 bar 7 psi When connecting case drain line make certain that drain plumbing passes above highest point of the pump before passing to the reservoir The case leakage line must be of sufficient size to prevent back pressure in excess of 2 bar 30 psi and returned to the reservoir below the surface of the oil as far from the supply inlet as possible All fluid lines whether pipe tubing or hose must be adequate size and strength to assure free flow through the pump An undersize inlet line will prevent the pump from operating properly at full rated speed An undersize outlet line will cause back pressure and cause heat generation and increased noise Flexible hose lines are recommended If rigid piping is used the workmanship must be accurate to eliminate strain on the pump port block or to the fluid connections Sharp bends in the lines must be eliminated wherever possible All system piping must be cleaned and flushed before installing pump Make sure the entire hydraulic system is free of dirt lint scale or other foreign material Caution Do not use galvanized pipe Galvanized coating can flake off with continued use Although the P1 PD series pumps have very fast off stroke compensator response system relief valves are recommended in all cases for safety considerations The fluid recommended for use in these pumps has a petroleum base and contains agent
39. r abs inlet minimum maximum 1 0 bar abs inlet speed maximum industrial version 0 8 bar abs inlet 1800 minimum Tpm maximum bar Inlet pressure sch O rated 1 0 absolute 0 0 gage minimum peak case pressure rated fluid temperature range rated maximum intermittent minimum intermittent mu rated 20 18 14 fluid contamination maximum 21 19 16 0 8 absolute 0 2 gage 4 0 Absolute 3 0 gage and less than 0 5 bar above inlet pressure 2 0 Absolute 1 0 gage and less than 0 5 bar above inlet pressure 40 to 95 6 to 160 5000 for cold starting fluid viscosity flange 82 2 A 101 2 B 101 2 B key shaft 19 1 A 25 1 BB 25 1 BB spline shaft 9T A 11T 13T B 15T BB 13T B 15T BB m b b b b b b b b C C C IS flange 2bolt80mm 2bolt100mm 2 Bolt 100mm key shaft E20N E25N E25N sideport kg Intermittent pressure is defined as less than 10 of operation time not exceeding 6 successive seconds ar ar ar pm pm pm pm pm pm pm ar ar ar ar ar C St St St O O kg kg kg sch sch SS Gol Parker Hannifin Corporation Hydraulic Pump Division 4 Marysville Ohio USA Bulletin HY28 2665 02 SVC EN General Information Medium Duty Axial Piston Pumps P1 PD Maintenance 18cc 28cc 45cc MOUNTING SHAFT INFORMATION SIDE LOAD CAPABILITY FLUID CONNECTIONS SYSTEM RELIEF VALVES RECOMMENDE
40. s which provide oxidation inhibition and anti rust anti foam and de aerating properties as described in PARKER standard HF 1 Where anti wear additive fluids are specified see PARKER standard HF O 90 V minimum Higher values extend the range of operating temperature but may reduce the service life of the fluid Determined by the viscosity characteristics of the fluid used Because high temperatures degrade seals reduce the service life of the fluid and create hazards fluid temperature should not exceed 110 C 230 F at the case drain The pump is self lubricating and preventative maintenance is limited to keeping system fluid clean by changing filters frequently Keep all fittings and screws tight Do not operate at pressures and speeds in excess of the recommended limit If the pump does not operate properly check the troubleshooting chart before attempting to overhaul the unit Overhauling may be accomplished by referring to the disassembly rework limits of wear parts and assembly procedures as provided in this service manual Fluid must be cleaned before and continuously during operation by filters that maintain a cleanliness level of ISO 20 18 14 Better cleanliness levels will significantly extend the life of the components As contaminant generation may vary with each application each must be analyzed to determine proper filtration to maintain the required cleanliness level 5 Darker Bulletin HY28 2665 02 SVC EN Medium
41. screws to 3 4 0 25 Nm 33 x 3 in Ib 13 Place thin film of clean oil on cam bearing surfaces Install cam in housing For 045 the cam must be tilted to permit entry into the housing Figure 2 NOTE The large pocket on the bottom surface of the cam must be on the same side as the three pressure communication holes on the main housing Pump rotation does not affect the assembly of the cam 14 Install the drive shaft into the pump housing Position pump horizontally Install the rotating group over the pump shaft Rotate the barrel to insure that it is seated against the cam Insure that the pump shaft is seated properly in the front bearing Parker Hannifin Corporation Hydraulic Pump Division F Marysville Ohio USA Bulletin HY28 2665 02 SVC EN Assembly Procedure 15 16 Chart 4 Pump Housing bolt torque 018 51 N M 38 ft Ibs 70 N M 52 ft Ibs 85 N M 63 ft Ibs Industrial port plates Mobile port plates Parker Hannifin Corporation Hydraulic Pump Division Marysville Ohio USA 17 Medium Duty Axial Piston Pumps P1 PD Maintenance 18cc 28cc 45cc Confirm that compensator rotation port plate rotation control and bias piston location indicate same direction of rotation Carefully install the assembled port block on the pump housing Press the port block to compress the bias spring and install housing bolts Tighten the bolts in a cross pattern to insure the port block does not get cocked on the ho
42. this document are hereby offered for sale by Parker Hannifin Corporation its subsidiaries or its authorized distributor This offer and its accepteance are governed by the provisions stated in the detailed Offer of Sale elsewhere in this document Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Contents P1 PD Maintenance 18cc 28cc 45cc Contents Ee B i ice c rios REDE TTE NU Tenn 4 General Information EE 5 O ONON EE 7 1506 S 206e Fump EXPOS di Mem 10 EE 11 Fump EXDIDUSU VIEW a RER le LE 12 AA AAA AAA 15 WE NA AI WA AA PEN T ae 16 AA X 17 AL AM AN AE AF CGompensator nennen nennen nnne nn nnne nnne s nsei sn sa sns ai aries snis ananas nsns 19 Pumi Ee ii S 20 Compensator Disassembly EE TD II Tm 22 BA WI WA one we A E N 23 BEE 24 Pump eee RE RET RR TUR 25 lee dile eoi LEE 28 E AA ai 29 TOSI E EE 31 UN Ee En AA NER mme REN 33 WAA AA AAA 34 BE EE 39 Parker Hannifin Corporation Hydraulic Pump Division Marysville Ohio USA 3 Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Typical Characteristics P1 PD Maintenance 18cc 28cc 45cc proses Pumps me maximum r r r r r r r NO a H O1 2 3 3 Co 0 0 0 continuous outlet pressure intermittent GA peak maximu 3 3000 3200 3200 2600 2600 27 00 2200 1800 boosted inlet maximum speed l 1 0 bar abs inlet mobile version maximum 0 8 ba
43. ting a seal change or complete overhaul turn the housing over and remove the snap ring and shaft seal from the housing Note Install a new seal do not reuse the shaft seal 13 If there is excessive wear on the port block bushing remove the bushing from the port block 14 If complete overhaul or rotation change remove control piston and bias piston guides 45 Size only COMPENSATOR DISASSEMBLY NOTES Access plugs on end of compensator spool bores are hardened plugs Do not interchange with other plugs in the control For rotation change the complete compensator assembly will need to be replaced 1 Measure and record the extension of the two pressure adjusting screws 2 Carefully remove the main compensator spring cap Remove the two springs Remove the seal piston and spring seat Remove the o ring boss access plug on the opposite side of the compensator Remove the compensator spool NOTE the compensator spool and inner spring are not interchangeable with the load sense compensator spool and spring 3 Load sense compensator Carefully remove the load sense compensator spring cap with spring seat seal piston Remove the spring Remove the spring seat Remove the o ring boss access plug on the opposite side of the compensator Remove the load sense compensator spool NOTE the load sense compensator spool and spring are not interchangeable with the main compensator spool and inner spring of the main compensator 4 Remove all SAE
44. trol description on page 7 SiS Bulletin HY28 2665 02 SVC EN Conversions amp Formulas Medium Duty Axial Piston Pumps P1 PD Maintenance 18cc 28cc 45cc CONVERSION FACTORS DEFINITION amp UNIT displacement flow power torque pressure weight force volume area length temperature viscosity FLUID POWER FORMULAS Pump input torque Ibs in Pump input power hp Pump output flow U S gpm Fluid motor speed rpm Fluid motor torque Ibs in Fluid motor power hp metric Pump input torque Nm Pump input power kW Pump output flow Lpm Fluid motor speed rpm min tr mn Fluid motor torque Nm Fluid motor power kW in rev x 16 387 cm rev gpm x 3 78 L min hp x 0 7457 kw lb ft x 1 3567 Nm Ibs in psi x 0 06895 bar Ibs in psi x 6 895 kPa Ib x 0 4536 kg Ib x 4 448 N in3 x 16 387 cm in2 x 6 452 cm in X 25 4 mm degree F 32 C 1 8 cSt x 1 0 mm sec SSU cSt x 4 25 14 pressure psi x displacement in rev 21 x mech eff rpm x in rev x psi 395934 x overall eff rpm x in rev x volumetric eff 231 231 x flow rate U S gpm x volumetric eff displacement in rev cm rev x 0 06102 in rev L min x 0 2642 gpm kW x 1 341 hp Nm x 0 7376 Ib ft bar x 14 50 Ibs ir psi kPa x 0 1450 Ibs in psi kg x 2 205 Ibs N x 0 2248 Ibs cm3 x 0 06102 in cm2 x 0 1550 in mm x 0 03937 z in 1 8 x C 32 F
45. ty while it is in Sellers 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 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 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 Parker Hannifin Corporation Hydraulic Pump Division Marysville Ohio USA 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 deemed 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 Sellers possession as security for the payment of any amounts owed to Seller by Buyer 12 Improper Use and Indemnity Buyer shall indemnify defend and hold S
46. uid see noisy pump above ports and port cavitation see noisy pump above plate pump reduce speeds contaminant improper filter maintenance particles in fluid filters too coarse introduction of dirty fluid to system reservoir openings improper reservoir breather improper line replacement improper fluid fluid too thin or thick for operating temperature range breakdown of fluid with time temperature shearing effects incorrect additives in new fluid destruction of additive effectiveness with chemical agin improper repair incorrect parts incorrect procedures dimensions finishes unwanted water Condensation in fluid faulty breather strainer heat exchanger leakage faulty clean up practice water in makeup fluid Parker Hannifin Corporation Hydraulic Pump Division Marysville Ohio USA 7 Bulletin HY28 2665 02 SVC EN Medium Duty Axial Piston Pumps Trouble Shooting P1 PD Maintenance 18cc 28cc 45cc pressure shocks worn replace compensator slow response in replace or relocate check valves excessive de improve decompression control compression energy rates Barrel blow off rotating group worn excessive case pressure compensator excessive line reduce line size or lengths instability capacitance eliminate hose line volume line stretch accumulator effects heating of fluid excessive pump recheck case drain flow and repair as required leakage fluid too thin improper assembly port timing set too low
47. using When port block is seated on the housing torque bolts in a cross pattern as specified in chart 4 Install o ring seals and assembled compensator on side of pump housing Pump rotation is indicated by arrow on compensator housing Torque bolts to 5 x 0 25 Nm 45 x 3 in Ib See Figure 7 note slot length and quantity Figure 6 Dowel CCW Figure 7 AN CCW pump with CW pump with compensator compensator Parker Bulletin HY28 2665 02 SVC EN Assembly Procedure Medium Duty Axial Piston Pumps P1 PD Maintenance 18cc 28cc 45cc COMPENSATOR ASSEMBLY Carefully clean and dry all parts prior to assembly Use caution to insure that spools and other parts are not damaged during cleaning process Use clean oil to NOTE instructions are for load lubricate seals and spools for easier assembly sense compensator for other compensator types disregard steps 1 related to extra spool assembly Main Outer Spring Load Sense P us Compensator Spring Inner Spring Remove and discard all o rings Install new o rings on SAE boss plugs and seal pistons Apply a light film of oil to the o ring on the main compensator seal piston Install the main compensator seal piston in the main compensator spring cap Place inner compensator spring on seal piston Install the outer compensator spring over the inner spring on the seal piston Position the spring seat over the springs Insert this assembly into the main compe
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