Eaton

1 Eaton Medium Duty Piston PumpParts InformationAugust, 1995 Model 70142 / 70144, cm3/r [ in3/r] Displacementand 70145, cm3/r [ in3/r] DisplacementVariable Displacement Piston Pumpdesign code 01 & 02with Valve Plate2 Model 70142 and 70145 PartsDrawingPump drawn below is typical of a righthand rotation Code and Assembly Number Location541 Shaft assembly for rear pump of assembly for single pump or front pump of 70142 and 7014522-12-226262120181919-11919-1182727 28283737(K4-4)2-12-226262120181919-11919 -118227A27B28A49-14949-249-349-449-53735 3649-14949-249-349-449-53434-132(K2-1)K2 -2K2-332(K3-1)31(K3-2)33(K3-3)K3K232(K4- 1)K4-2K4-3K4K1-132(K2-2)K2-3K2-4K146464 Model 70142 / 70144 and 70145 Parts ListParts listed below are to service catalog units.

2 Other variations of units are built that have parts altered for special non-catalog units can be serviced with the parts list below using caution for proper identification. Contact an Eatonrepresentative with any questions concerning your selection. Have your final assembly number ready when following design code [02] part numbers are used to service both 01 and 02 catalog units with the exception of the item 48valve plate. (See page 9 for details)Item02 Part 1 Drive Shaft (Identification drawing on page #6)2 1 Backplate Assembly (Identification drawing and parts list on page #7)3 1 Housing Assembly (Identification drawing on page #8)470111-6921 Rotating Kit Assembly (parts list on page #8)

3 51 Camplate, cm3/r [ in3/r] Displacement70111-665 Key groove in trunnion70111-702 Cross hole in trunnion51 Camplate, cm3/r [ in3/r] Displacement70111-683 Key groove in trunnion70111-705 Cross hole in trunnion616048-3121 Washer+ 716077-261 Retaining Ring+ 816078-162 Retaining Ring916241-16251 Thrust Bearing1016241-C16252 Bearing Race+ 1116253-161 Shaft Seal, Drive1116253-2161 Viton Shaft Seal, Drive+ 1270111-7011 Housing Gasket1376100-1912 Needle Bearing+ 1416003-231O-ring, mm Dia. x mm ID.

4 [.125 in. Dia. x in. ID.]1516048-5342 Washer+ 1616253-2141 Shaft Seal, Trunnion1716268-3064 Screw, Pan Head1817079-22 Spring1932060-82 Plug Assembly+ 19-116015-18-902O-ring, mm Dia. x mm ID. [.0937 in. Dia. x .875 in. ID.]20 1 Relief Valve for Port "C" (Identification drawing on page #9)21 1 Relief Valve for Port "D" (Identification drawing on page #9)2270101-1501 Inner Race2370102-6151 Seal Cover2470102-6161 Trunnion Cover2570102-6251 Cover, O-ring2616028-3042 Dowel Pin2716032-5202 Cap Screws, 5/16-18, mm [2 in.]

5 ] Long27A16032-5322 Cap Screws, 5/16-18, mm [ in.] Long27B16032-5342 Cap Screws, 5/16-18, mm [ in.] Long2816032-5242 Cap Screws, 5/16-18, mm [ in.] Long28A16032-5362 Cap Screws, 5/16-18, mm [ in.] Long291 Key, Drive Shaft24500-619 Used with mm [.875 in] dia. drive , Camplate Trunnion3170142-6001 Cover Plate (In K3 kit)+ 3216007-141O-ring (In K1, K2, K3, & K4 kit)3316032-6102 Cap Screws, Cover Plate (In K3 kit)3416103-1081 Plug Assembly+ 34-116133-81O-ring, mm Dia. x mm ID. [.087 in. Dia.

6 X .644 in. ID.]+ 3570111-7031 Molded O-ring36 1 Charge Pump Adaptor (Identification drawing and parts list on page #10 & #11)5 Model 70142 / 70144 and 70145 Parts List371 Gerotor set and coupler cm3/r [.42 in3/r] displacement, mm [.25 in ] cm3/r [.84 in3/r] displacement, mm [.5 in] width3770111-66719 tooth coupler (In Kit 4)4670111-6321 Mounting Bracket, Square shaped4670111-7091 Mounting Bracket, "V" shaped48 1 Valve Plate (Identification drawing on page #9)70113-008 Righthand (CW) Rotation70113-009 Lefthand (CCW) Rotation70112-007 Low Cam Effort Valving, Righthand and Lefthand rotation4970411-5031 Dump Valve sub-assembly+ 49-116078-61 Retaining Ring49-270411-5011 Separator Plug49-370411-5021 Separator+ 49-416003-71O-ring, mm Dia.

7 X mm [.0625 in. Dia. x .375 in. ]+ 49-516133-101O-ring, mm Dia. x mm [.097 in. Dia. x .755 in. ]4916169-11401 Plug Assembly49-516133-101O-ring, mm Dia. x mm [.097 in. Dia. x .755 in. ]5016103-3061 Plug Assembly+ 50-116133-61O-ring, mm Dia. x mm ID. [.078 in. Dia. x .468 in. ID.]5116103-3061 Plug Assembly+ 51-116133-61O-ring, mm Dia. x mm ID. [.078 in. Dia. x .468 in. ID.]Mounting KitsK170142-9441 Tandem Piston Pump Mounting KitK1-170111-666135T Coupler, mm [ in.] longK1-216007-141O-ring, mm Dia.

8 X mm ID. [.0625 in. Dia. x 4 in. ID.]K1-316032-6132 Cap ScrewsK1-416048-82 WasherK270442-9291 Gear Pump Mounting KitK2-116007-141O-ring, mm Dia. x mm ID. [.0625 in. Dia. x in. ID.]K2-216048-1132 WasherK2-316032-6122 Cap ScrewsK370142-9151 Cover Plate KitK3-116007-141O-ring, mm Dia. x mm ID. [.0625 in. Dia. x in. ID.]K3-270142-6001 Cover PlateK3-316032-6102 Cap ScrewsK470144-9031 Gear Pump Mounting Kit with CouplerK4-116007-141O-ring, mm Dia. x mm ID. [.0625 in. Dia. x 4 in. ID.]K4-216048-1132 WasherK4-316032-6122 Cap ScrewsK4-470111-66719T CouplerSeal Repair Kit 70142-9381 Seal Repair Kit for 70142, 70144 and 70145 piston Refer to specific item parts list.

9 +Included in seal repair Part Tandem Front Pump, No GerotorTandem Rear Pump, No GerotorTandem Rear Pump, with Gerotor Single Pump, with GerotorSingle Pump, with Gerotor Single Pump, No Gerotor9 Min. Full Depth35 Min. Full Depth9 Min. Full Depth9 Min. Full Depth9 Min. Full Depth70142-201 [13 Tooth]70142-214 [35 Tooth] .69 Min. Full Depth70142-212 [35 Tooth] .69 Min. Full Depth70142-200 [13 Tooth]70142-203 [7/8 in. Keyed]Single Pump, No Gerotor9 Min. Full Depth9 Min. Full Depth70142-215 [13 Tooth]70142-225 [7/8 in.]

10 Keyed]Model 70142 / 70144 and 70145 Item 1 - Drive Shaft IdentificationPart NumberInput DriveWhere UsedOutput Drive7 Model 70142 / 70144 and 70145 Item 2 -Backplate Assembly Identification2(a)AcceptsGerotor ChargePump2(b)Rear "A" Mount,OppositeSide Porting2(c)Rear "A" Mount,Same SidePorting withoutMounting Holes2(d)Rear "A" Mount,Same SidePorting withMounting HolesItem 2 - design code 02 numbersBackplate Assembly Identification (Refer to drawings above)AssemblyDescriptionPart NumberAdditional Description2(a) - AcceptsGerotor Charge Pump70119-0012(b) - Rear "A" Mount,OppositeSide Porting70117-003.