220 Piston Pump Service Manual
Contents
1. 1 See table 1 1 Shaft Drive 7 2 6028118 XXX AR Spacer Bearing Bearing Shim Kit M 18 See table 1 1 Key Driveshaft 7 4 See able 2 1 End Cover S A 16026 610 1 Roll Pin 6 See table 3 1 Valve Plate 9 7 104166 156 1 O Ring See table 4 1 Housing 10 9 388153 1 Bearing Assembly Shaft Front 10 02 335336 1 Bearing Assembly Shaft Rear 11 6026924 001 2 Bearing Swash Plate 12 114995 010 2 Screw Cap Socket 13 5992034 001 1 Spring Bias 14 6026917 001 1 Swash Plate 10 15 6026982 001 1 Rotating Group S A 10 16 114977 035 4 Screw Cap Housing End cover 17 16253 218 1 Seal Shaft Fluorocarbon 10 18 16077 032 1 Ring Retaining Internal Shaft Seal e 19 See Table 8 1 Compensator S A 1 20 107275 011 4 O Ring Secondary Compensator Housing 21 107275 017 1 O Ring Compensator Housing 22 114953 030 4 Screw Compensator Mounting 23 6030097 001 1 Piston Control 24 16103 312 1 Plug Fixed Volume Stop 25 16103 302 3 Plug 11 26 See table 9 9 Plug Bottom Top and Side Case Drain Ports 11 27 See table 9 1 Plug Vertical Case Drain Port 11 28 See table 9 1 Plug Diagnostic Port 11 29 6026914 001 1 Link Feedback Feedback Sensor Option 5 30 114995 010 1 Screw Cap Socket Flat Countersunk Feedback Sensor Option 5 31 5990203 001 1 Magnet Carrier Feedback Sensor Option 5 32 54999158 1 Adapter Swash Sensor Feed Sensor Option 5 33 104166 021 1 O Ring Adapter Swas2. cover 2 Inspect roller bearing and bearing race for nicks and pitting Make sure the roller bearing turns freely within the bearing race If the roller bearing needs replacement both the roller bearing and the bearing race must be replaced Inspect swashplate face for wear roughness or scoring Check the swashplate hubs and bearing surfaces for wear and cracks Replace if defective Swashplate Parts Shaft Housing Parts 1 Inspect drive shaft for wear stripped splines and burrs Remove burrs with an India stone Inspect the contact area of bearing and shaft seal Replace the drive shaft If wear or scoring Is greater than 0 005 T I R total indica tor reading 2 Inspect drive shaft bearing for roughness pitting of rollers and excessive end play Replace if defective If the bearing needs to be replaced the bearing race also requires replacement EATON 220 Piston Pump Service Manual E PUMC RRO01 E2 February 2014 3 Inspect valve plate for ero sion excessive wear heavy scratches and cracks If any of the above conditions are found replace the valve plate Inspect control piston and maximum displacement screw for burrs scratches and cracks Clean up minor scratches with 500 grit paper Remove burrs with an India stone The control piston should move freely in the bore Inspect saddle bearing sur faces for wear pitting and smooth operation Replace if necessary Ins
3. 220 Piston Pump oervice Man Manual Powering Business Worldwide Table of Contents DS LAS aue mM mU Ur 3 seats gcse acters UU u M 4 Soie c picco MN ONE E tomm 5 COTO RR M P n 6 E OV en a 7 E EUM aS MAN RT ease S E SEARED LEE tpn SENE AE SEE ee 9 EO 10 DOS CC 2 I QE c i 10 SIT d ERECTO pt crt ice cet terse cme nant 10 RRE A m 10 CODES 11 PIUS occ E OO ee ee 11 FUND RED ee ee rc 12 inspection Repair and Part Replacement ana IO pct RD ee poA dpi cc dece 16 EEE EL ET E A E 19 FEINE ee ee RER 22 2 EATON 220 Piston Pump Service Manual E PUMC RROO01 E2 February 2014 Part Identification 220 Series Pumps Item Part Number Quantity Description Page Number
4. 41 15 17 bar 180 220 Ibf in 00 9900512 010 A 43 275 8 282 7 bar 4000 4100 Ibf in 14 12 41 15 17 bar 180 220 Ibf in OA 9900512 015 A 43 275 8 282 7 bar 4000 4100 Ibf in 16 13 79 16 55 bar 200 240 Ibf in 00 9900512 008 A 43 275 8 282 7 bar 4000 4100 Ibf in 24 22 75 25 51 bar 330 370 Ibf in 00 9900512 018 B 28 206 8 213 7 bar 3000 3100 Ibf in 24 22 75 25 51 bar 330 370 Ibf in 00 9900512 012 B 28 206 8 213 7 bar 3000 3100 Ibf in 28 26 20 28 96 bar 380 420 Ibf in OA 9900512 019 B 43 275 8 282 7 bar 4000 4100 Ibf in 24 22 75 25 51 bar 330 370 Ibf in 00 9900512 011 C 12 1379 144 8 bar 2000 2100 Ibf in 00 No Flow Comp Setting 00 9900512 021 C 19 168 9 175 8 bar 2450 2550 Ibf in 00 No Flow Comp Setting 00 9900512 023 C 21 179 3 186 2 bar 2600 2700 Ibf in 00 No Flow Comp Setting 00 9900512 029 C 28 206 8 213 7 bar 3000 3100 Ibf in 00 No Flow Comp Setting 00 9900512 016 s 43 275 8 282 7 bar 4000 4100 Ibf in 00 No Flow Comp Setting 00 9900512 009 45 306 8 313 7 bar 4450 4550 Ibt in 00 No Flow Comp Setting 00 9900512 004 Kit Contents 3 a 90906000 L l od JE SINN Table 9 Plug Subassemblies Items 26 27 amp 28 Code Position 12 13 27 28 Part Number Description A B E G 00 AB 16103 310 Plug Bottom Side and Top Case Drain 875 14 UNF2B Thd 00 AB 9237 005 Plug Bottom Side and Top Case Drai
5. MN 55344 1110 Morges USA Switzerland Tel 952 937 9800 Tel 41 0 21 811 4600 Fax 952 294 7722 Fax 41 0 21 811 4601 www eaton com hydraulics 2014 Eaton All Rights Reserved Printed in USA Document No E PUMC RR001 E2 February 2014 Eaton Hydraulics Group Asia Pacific Eaton Building No 7 Lane 280 Linhong Road Changning District Shanghai 200335 China Tel 4 86 21 5200 0099 Fax 486 21 2230 7240
6. S 0005 to 003 clear ance no preload Add or remove shims to achieve proper bearing set If no movement of the shaft is observed shims will need to be removed and steps 3 and 4 repeated Finish the assembly of the pump Shim Kit 9900961 000 2 Assembly 1 Install Snap Ring and Shaft Seal p Note The cradle bearings are asymmetrical Install as shown in picture 5 Install Bearing Note With the bias spring in place tilt the swash plate toward the spring and install the swash plate 2 Insert the Shaft Bearing Race Note The old cap screws cannot be reused and must be replaced with new ones because the screws will be damaged during disassembly The new cap screw threads will be coated with loctite 2 bearings item 11 and 2 screws item 12 6 Install Bias Spring le EATON 220 Piston Pump Service Manual E PUMC RRO01 E2 February 2014 19 Assembly 9 Install Swashplate Retainer 10 Install Swashplate Locator Note Adjust the screw until the swashplate is near neutral will look flat in housing 11 Install Shaft 12 Install Shaft Retainer Tool Caution Use care while inserting shaft end through shaft seal 13 Install the Rotating Group 14 Remove Swashplate Locator 16 Install O ring Seal 20 EATON 220 Piston Pump Service Manual E PUMC RROO01 E2 February 2014 Assembly 17 Install Housing O rings 18 Install Bearing Race into End Cover Locating Pi
7. e Plate Item 6 Code Position 4 5 6 7 Part Number 028 H 6029630 001 028 L 6029630 002 220 Series Mobile Piston Pump Valve Plate Identification Description Plate Valve RH 28 cc Plate Valve LH 28 cc RH EATON 220 Piston Pump Service Manual E PUMC RRO01 E2 February 2014 Housing Item 8 Rotating Groups Item 15 Swash Plate Item 14 Shaft Seal Item 17 Tables 4 5 6 amp 7 Table 4 Housing Item 8 Code Position 8 9 12 27 28 05 09 31 34 05 09 31 34 A B E G 00 05 09 31 34 C D EH 00 Table 5 Rotating Group Item 15 Code Position 4 5 6 Part Number 028 6026982 001 Table 6 Swash Plate Item 14 Code Position 4 5 6 Part Number 028 602691 7 001 Part Number 6026919 001 6026919 002 6026919 003 Description Housing Feedback Sensor Housing Housing Metric Drain Port Description Rotating Group S A 28 cc Description Swash Plate 28 cc 220 Series Mobile Piston Pump Swash Plate View Table 7 Shaft Seal Item 17 Code Position 4 5 6 Part Number 1 16253 218 220 Series Mobile Piston Pump Shaft Seal View Description Seal Shaft Fluorocarbon 10 EATON 220 Piston Pump Service Manual E PUMC RR001 E2 February 2014 Compensator Item 19 Plug Subassemblies Item 26 27 amp 28 Table 8 9 Table 8 Compensator Pump Controls Item 19 Control Code Code Code Code 14 15 16 Pressure Limit S
8. e easy removal of the rotating group and to retain the swashplate 14 Remove shaft remove shaft retainer tool and lift out 13 Remove rotating group shaft Use caution when moving shaft through shaft seal AAA 15 Remove Swashplate Locator 16 Remove Swashplate Retainer eed 14 EATON 220 Piston Pump Service Manual E PUMC RROO01 E2 February 2014 Pump Repair Cont 17 Remove Control Piston 18 Remove Swashplate 19 Remove Bias Spring 20 Remove Bearing le 4 21 Remove Cradle Bearing Screws Caution Socket 22 Remove Cradle Bearings Note The cradle bearings head cap screws are easily damaged during repair with are asymmetrical improper tool Note Proper orientation shown in picture 1 24 Remove Shaft Seal With the seal retaining ring removed use a punch or similar tool to knock out the shaft seal EATON 220 Piston Pump Service Manual E PUMC RRO01 E2 February 2014 15 Inspection Repair and Part Replacement Inspection Inspection Before inspection of parts clean with a solvent that is com patible with system fluid Rotating Group Parts 1 Inspect cylinder block face for wear scratches and or ero sion If cylinder block condition is questionable replace the entire rotating group 2 Remove the pistons shoe retainer and pivot from piston block The piston block assembly doesn t need to be disas sembled unless the internal pins or spring are damaged 3 Check each cyli
9. etting 17 18 Flow Setting 21 22 Kit Number A 27 199 9 206 8 bar 2900 3000 Ibf in 25 23 44 26 89 bar 340 390 Ibf in 00 9900512 003 A 28 206 8 213 7 bar 3000 3100 Ibf in 10 9 65 12 41 bar 140 180 Ibf in OA 9900512 013 A 28 206 8 213 7 bar 3000 3100 Ibf in 14 12 41 15 17 bar 180 220 Ibf in 00 9900512 022 A 28 206 8 213 7 bar 3000 3100 Ibf in 14 12 41 15 17 bar 180 220 Ibf in OA 9900512 026 A 28 206 8 213 7 bar 3000 3100 Ibf in 23 23 10 25 17 bar 335 365 Ibf in 00 99005 12 001 A 28 206 8 213 7 bar 3000 3100 Ibf in 24 22 75 25 51 bar 330 370 Ibf in 00 9900512 032 A 28 206 8 213 7 bar 3000 3100 Ibf in 30 28 27 31 72 bar 410 460 Ibf in 00 9900512 017 A 32 226 5 233 4 bar 3285 3385 Ibf in 16 13 79 16 55 bar 200 240 Ibf in 00 9900512 002 A 35 241 3 248 2 bar 3500 3600 Ibf in 14 12 41 15 17 bar 180 220 Ibf in 00 9900512 028 A 36 246 5 253 4 bar 3575 3675 Ibf in 14 12 41 15 17 bar 180 220 Ibf in 00 9900512 014 36 246 5 253 4 bar 3575 3675 Ibf in 22 20 68 23 44 bar 300 340 Ibf In OA 9900512 031 A 40 262 0 268 9 bar 3800 3900 Ibf in 14 12 41 15 17 bar 180 220 Ibf in OA 9900512 005 A 40 262 0 268 9 bar 3800 3900 Ibf in 10 9 65 12 41 bar 140 180 Ibf in 00 9900512 027 A 42 272 4 279 3 bar 3950 4050 Ibf in 10 9 65 12 41 bar 140 180 Ibf in 00 9900512 007 A 42 272 4 279 3 bar 3950 4050 Ibf in 10 9 65 12 41 bar 140 180 Ibf in OA 9900512 006 A 43 275 8 282 7 bar 4000 4100 Ibf in 14 12
10. h Sensor Assy Feedback Sensor Option 5 34 6024371 002 1 Feedback Sensor Non Contact Feedback Sensor Option 5 35 6027085 001 2 Screw Cap S A Swash Sensor Feedback Sensor Option 5 36 16026 406 1 Pin Roll Feedback Link Feedback Sensor Option 5 37 6030096 350 1 Screw Cap Adjustable Maximum Stop Option 5 38 692866 1 Nut Sealing Adjustable Maximum Stop Option 5 39 16133 12 1 O Ring Adjustable Maximum Stop Option 5 40 937166 2 Tamper Proof Cap e Standard Seal Kit 9900959 000 Adjustable Maximum Displacement Volume Stop Kit 9900958 000 B Shaft bearing Shim Kit 9900961 000 EATON 220 Piston Pump Service Manual E PUMC RRO01 E2 February 2014 Exploded Assembly 220 Series Pump Part Item Number Pressure Torque Jam Nut to 1743 Nm Then Install tem 40 Temper Proof Nut 6 Steel Side of Valve Plate Musi Face End Cover 4 EATON 220 Piston Pump Service Manual E PUMC RR001 E2 February 2014 Optional Assembly 220 Series Pumps Part Item Number Feedback Sensor Option Adjustable Maximum Stop Option Torque 2722 7 Mm Nh HT 24 EN gh NS S SE 270 NS REN SENS Al LLL l4 Pi ce A am 5 um EATON 220 Piston Pump Service Manual E PUMC RRO001 E2 February 2014 Typical Cross Section 220 Series Pumps Side View wise 6 EATON 220 Piston Pump Service Ma
11. n Note Lightly coat the back plate side of the valve plate with petroleum jelly for retention during assembly Install the valve plate over the bearing race aligning the small slot on the outside of the valve plate with the roll pin in the end cover 21 Install End Cover 22 Install Compensator Note Ensure correct orientation Use caution so valve plate does not fall off 23 Testing Perform functional test on pump according to Eaton test proce dure Contact your area sales manager for more information EATON 220 Piston Pump Service Manual E PUMC RRO01 E2 February 2014 21 Assembly Torque Values Instructions Pressure Torque Jam Mut to 1743 Nm Then Install lem 40 Temper Prol Hut AX Torque B 240 8 Nm FX 26 3 Torque 4249 Mm 3X Torque 6 740 6 Hm Adjustable Maximum Stop Assembly Torque Values Option Instructions Feedback Sensor Option Torque 102410 Nm Torque 27427 Nm j After Adjusting Displacement 2X Torque 340 3 Nm SG S D ES 5 MASS 555550 e SE 33 r CZ 80 Torque 420 4 Nm 22 EATON 220 Piston Pump Service Manual E PUMC RROO01 E2 February 2014 Notes EATON 220 Piston Pump Service Manual E PUMC RRO01 E2 February 2014 23 ETN Powering Business Worldwide Eaton Eaton Hydraulics Group USA Hydraulics Group Europe 14615 Lone Oak Road Route de la Longeraie 7 Eden Prairie
12. n M22 X 1 5 Thd A B E 16103 308 Plug Vertical Case Drain 750 16 UNF2B Thd CLE 9237 004 Plug Vertical Case Drain M18 X 1 5 Thd 1 16103 304 Plug Diagnostic Ports 4375 20 UNF2B Thd 2 9237 002 Plug Diagnostic Ports M12 X 1 5 Thd EATON 220 Piston Pump Service Manual E PUMC RRO01 E2 February 2014 Pump Repair Pump Repair Cut Section 1 Remove Control Piston Plug Assembly 2 Install Swash Plate Locator Tool Adjustment will take place in step 11 4 Remove End Cover Mark the housing and end cover to ensure orientation Remove the four cap screws that hold the end cover in place Note The valve plate may stick to end cover Use caution so valve plate does not fall off 7 Remove Bearing Race The bearing race is pressed in and will require the use of a sliding bearing removal hammer or similar tool to remove it EATON 220 Piston Pump Service Manual E PUMC RRO01 E2 February 2014 13 Pump Repair Cont 9 Remove Housing O rings 10 Install Swashplate retainer install the swash plate lt hold down tool and tighten the cap screw This will prevent the swash plate from moving 11 Swashplate adjustment locator with the hold down tool in place tighten the adjustment screw so the control piston spring is compressed 12 Install Shaft Retainer Tool and tighten the set screw Note This step is designed to force the swashplate to a neutral position to while being careful not to damage shaft enabl
13. nder block bore for excessive wear Use the piston and shoe S A for this purpose The pistons should be a very close fit and slide in and out of the cylinder block bores NO BINDING CAN BE TOLERATED If binding occurs clean the cylinder block and pistons Lubricate the cylinder block bores with clean fluid and try again Even minor contamination of the fluid may cause a piston to freeze up in a cylinder bore 4 Inspect each of the nine piston and shoe S A for a maxi mum end play of 0 005 inch between the piston and shoe Also check the face dimension of each shoe The face dimension must be within 0 001 inch 5 Inspect shoe retainer and pivot for wear and or scratches If condition is questionable replace entire rotating group This dimension must be maintained on all nine shoes within 0 001 inch Piston S A Tolerances Shoe face rides on swash plate Shoe must swivel smoothly on ball End play must not exceed 0 005 inch Piston Block Shoe Retainer Piston 9 and Shoe S A Note Do not lap the face of piston block assembly Between Piston Shoes 9 E 0 001 lt Shoe Piston Movement up to 0 005 16 EATON 220 Piston Pump Service Manual E PUMC RR001 E2 February 2014 Inspection Repair and Part Replacement End Cover amp 1 Inspect end cover for ero Associated Parts Sion cracks and burrs Clean up minor burrs with an India stone If erosion or cracks are found replace the end
14. nual E PUMC RRO01 E2 February 2014 Shaft Drive and Key Item 1 amp 3 Table 1 Table 1 Shaft Drive and Key Items 1 amp 3 Code Position 4 5 6 8 9 24 25 Key Item 3 Part Number Description 028 05 00 24500 619 6026704 003 Shaft Drive 22 2 Dia Straight Key 41 mm Ext 028 09 00 6026704 001 Shaft Drive Input 13 Tooth 16 32 41 mm Ext 028 31 00 16246 516 6026704 002 Shaft Drive 25 4 Dia Straight Key 46 mm Ext 028 34 00 6026704 004 Shaft Drive Input 15 Tooth 16 32 46 mm Ext 220 Series Mobile Piston Pump Drive Shaft EATON 220 Piston Pump Service Manual E PUMC RRO01 E2 February 2014 End Cover S A Item 4 Table 2 Table 2 End Cover S A Item 4 Code Position Part Number 6026786 002 6026786 001 Description End Cover S A Rear Port 28 cc O ring Port End Cover S A Side Port 28 cc O ring Port 6026786 006 End Cover S A Rear Port 28 cc Metric 6026786 005 End Cover S A Side Port 28 cc Metric 4 5 6 7 10 11 13 24 25 028 L R AA 1 00 028 L R AB 1 00 028 B AC 2 00 028 Bi AD 2 00 028 L R AE 1 00 028 L R AF 1 00 220 Series Mobile Piston Pump End Cover views wr Side Port 8 EATON 220 Piston Pump Service Manual E PUMC RR001 E2 February 2014 6026786 004 6026786 003 End Cover S A Rear Port 28 cc 4 Bolt Flange Port End Cover S A Side Port 28 cc 4 Bolt Flange Port Rear Port Valve Plate Item 6 Table 3 Table 3 Valv
15. pect housing mounting flange for nicks and burrs Remove minor nicks and burrs with an India stone Also check the housing for damaged or stripped threads If any thread is damaged replace the hous Ing Check remaining pump parts for excessive wear dam aged threads burrs cracks and erosion Replace any part that is in questionable condition 17 Inspection Repair and Part Replacement Shimming Process End Cover 4 Cap Screw 16 Bearing Spacer 2 Shafty Bearing Shim Kit 9900961 000 Shimming Process Installation Information This skim kit is to replace the bearing spacer within the pump housing If the housing drive shaft shaft bearings or end cover is replaced during servic ing the original bearing spacer can no longer be used to assure proper bearing set Shimming Procedures 1 18 Measure the thickness of the existing bearing spacer To obtain a starting point stack shims to a few thou sandth of an inch less than the measurement of exist ing bearing spacer Then insert shims into the end cover in the same location as the removed bearing Spacer Assemble the housing without interface O ring seals shaft bearings shaft and end cover Install the end cover cap screws and torque to 114 11 Nm EATON 220 Piston Pump Service Manual E PUMC RROO01 E2 February 2014 4 Using a dial indicator mea sure drive shaft end play Target bearing set range I
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