Bent Axis Motors - Eaton

1 bent axis MotorsParts and Service 2 Eaton bent axis Motors Parts and Repair E-MOPI-TS003-E February 2005 Introduction .. 3 Identification Tag .. 3 Tools Required ..3 Parts Assembly Drawing and ListBent axis Variable ..4 bent axis Fixed ..5 PartsPre-loading Spring ..6 BAV Seal Kits ..7 BAF Seal Kits ..7 Shaft & Bushing Kits ..8 Disassembly ..9-13 Check Condition of Parts ..14-15 Assembly ..16-21 Torque Values ..21 Installation Guidelines ..22-23 ControlsTechnical Data ..24 Testing Procedures ..25 Controls EA, EB, EC, ED ..26-28 Controls HA ..29 Controls HB ..30 Controls H1 ..31 Controls H2 ..32 Controls M1, M2.

2 33-35 Controls PA ..36-37 Controls PB ..38-39 Controls E5-E6 ..40-41 BAV Critical Dimensions ..42 Special Tools ..43 bent AxisMotorsTable of ContentsSerial Number Example:0411 - XXXXXX3 Eaton bent axis Motors Parts and Repair E-MOPI-TS003-E February 2005 Identification TagA- Part Number/Displacement ( )BAF Fixed Displacement Motors11183 BAXXXXXA20, 30383 BAXXXXXA40, 44, 583 BAXXXXXA75, 87, 108, 161783 BAXXXXXA225983 BAXXXXXABAV Variable Displacement Motors55, 75, 108524 BAXXXXXA161724 BAXXXXXA225924 BAXXXXXA Allen Key Depth Vernier Caliper Snap Ring Closing and Expanding Pliers Screwdrivers Shaft Puller Rubber Mallet Dial Indicator Torque WrenchContinuous max.

3 Pressure ..5100 psi (350 bar)Peak pressure ..6500 psi (450 bar)Max pressure into casing ..35 psi (1,5 bar)Max. circuit fluid temperature ..167 F (+75 C)Max. leakage fluid temperature ..195 F (+90 C)Viscosity range ..10-800 cSt (1,85 105 E)Normal viscosity range ..15-60 cSt (2,3 8 E)Oil cleanliness ..ISO-DIN 4406 = 19/16 Tools RequiredThis manual will provide you with service information andprocedures for disassembly and assembly of Eaton Fixedand Variable Displacement bent axis Motors . Proceduresoutlined in this manual will allow you to better service yourmotors and obtain the best results possible. To ensureaccuracy of repair and prevent part loss or damage, certaincomponents or subassemblies are disassembled, inspected,and reassembled when removed from the :All requests or inquiries must be accompanied by thecomplete model and serial : Cleanliness is extremely important when repair-ing a hydrostatic motor .

4 Before disconnecting the lines, cleanforeign material from exterior of unit. Work in a clean all metal parts in clean parts with clean compressed air. Avoid cleaning partswith cloth or paper towel as these can introduce contamina-tion. visually inspect all mating surfaces. Replace any compo-nents that have scratches, burrs or evidence of smearedmaterial. Don t use abrasive tools including coarse gritpapers, files or grinders on internal :All torque specifications are for lubricated for gasketed surfaces should be checked for good service policy is to replace all old seals with newseals whenever unit is disassembled. Lubricate seals with petroleum jelly.

5 Use only clean, recommended oil whenassembling unit. See Hydrostatic Fluid Recommendations inpublication 03-401 and to specific motorassembly part listings foryour Eaton motor whenordering replacement lists are available fromEaton. Sample tag showsmotor ordering replacementparts, you must include the following information:Specifications:Design Code{Base Part NumberDisplacement{{04 = Year11 = MonthXXXXXX = Serial Code Number{4 PartsAssembly and List(BAV bent axis Variable Displacement) Eaton bent axis Motors Parts and Repair E-MOPI-TS003-E February 2005 bent axis VARIABLE DISPLACEMENT MODEL Washers (As Required) (As Required) Plate13.}}}}

6 Piston Assembly: Piston + Keyed Roller Bearing19. Seal*22. * End CoverTABLE PARTS5 Eaton bent axis Motors Parts and Repair E-MOPI-TS003-E February 2005 bent axis FIXED DISPLACEMENT MODEL Washers (As Required) (As Required) Plate13. Piston Assembly: Piston + Keyed Roller Bearing19. Seal** Included in seal kitAxial Threaded PortsRadial Threaded PortsRadial Split Threaded PortsPartsAssembly and List(BAF bent axis Fixed Displacement)22. * CoverTABLE PARTS32326 Eaton bent axis Motors Parts and Repair E-MOPI-TS003-E February 2005 The system of pre-loading the cylinder barrel has been modified to improve performance and facilitate maintenanceof BAV and BAF axial piston Motors .

7 The new design eliminates the Belleville spring and its substitutes a coilspring in the cylinder barrel. This new design has different components from theBelleville spring new design includes: Cylinder barrel Central rod Valve plateThere is no interchangeability of components between thetwo designs. There is a gradual phase-in of the new designduring 2004 & 2005. 1. Central rod2. Cylinder barrel3. Valve plate4. Coil springDesign Code B Change/timeline consists of the following:PartsPre-Load SpringDISPLACEMENTDATES55, 90,108 cc/rev2004160, 225 cc/rev2005 Belleville Spring DesignCoil Spring DesignDesign Code ADesign Code B7 Eaton bent axis Motors Parts and Repair E-MOPI-TS003-E February 200512124 PartsSeal KitsTABLE BAF SEAL KITSMATERIALMATERIALDISPLACEMENTMOUNTING STANDARD (NBR) VITON (FKM)

8 CC/REVCONFIGURATIONBAF BAF 11 Metric/SAE9900282-0039900282-00420, 30 Metric/SAE9900282-0059900282-00630 Metric only9900283-0019900283-00244, 55 Metric/SAE9900282-0079900282-008 Gearbox9900283-003 9900283-00475 Metric 9900282-0099900282-010 SAE 9900282-0119900282-012 Gearbox 9900283-0059900283-00687, 108 Metric 9900282-0139900282-01487, 108 SAE 9900282-0159900282-01687,Gearbox 9900283-0079900283-008108 Gearbox 9900283-0099900283-010161 Metric/SAE9900282-0179900282-018225 Metric/SAE9900282-019 9900282-020 TABLE BAV SEAL KITSMATERIALMATERIALDISPLACEMENTMOUNTING STANDARD (NBR) VITON (FKM)

9 CC/REVCONFIGURATIONBAVBAV55 Metric/SAE/Gearbox 9900280-0019900280-002 Metric/SAE/Gearbox 9900281-0019900281-002 75* Metric/SAE/Gearbox9900280-003 9900280-004 Metric/Gearbox9900281-0039900281-004 SAE 9900281-0059900281-006108 Metric/SAE/Gearbox 9900280-005 9900280-006 Metric/Gearbox 9900281-007 9900281-008 SAE9900281-0099900281-010161 Metric/SAE9900280-007 9900280-008 Metric/SAE9900281-011 9900281-012225 Metric/SAE9900280-009 9900280-010 Metric/SAE9900281-013 9900281-014 *Note: For BAV75 motor with W40 Shaft, use only SAE Includes: Shaft seal(21), gasket (1), o-ring(24), and motor control seals9900281-xxx Includes: Items 1, 21, 248 Eaton bent axis Motors Parts and Repair E-MOPI-TS003-E February 2005 PartsShaft & BushingKitsEATONEATONEATONEATONKITPRODUC TDISPLACEMENTSHAFT NUMBERCODECODECODESHAFT DESCRIPTIONTYPEPos.

10 4,5,6 Pos. 8,99900332-001 BAF11-2014 Tooth w/ 20 splined shaftMetric9900332-002 BAF11-0120mm Straight keyed shaftMetric9900332-003 BAF020 & 030-2518 Tooth w/25 splined shaftMetric9900332-004 BAF020 & 030-0225mm Straight keyed shaftMetric9900332-005 BAF / BAV040, 044 & 055-3014 Tooth w/30 splined shaftMetric9900332-006 BAF / BAV040, 044 & 055-0330mm Straight keyed shaftMetric9900332-007 BAF / BAV75-3516 Tooth w/35 splined shaftMetric9900332-008 BAF / BAV75-0435mm Straight keyed shaftMetric9900332-009 BAF / BAV087 & 108-4018 Tooth w/40 splined shaftMetric9900332-010 BAF / BAV087 & 108-0540mm Straight keyed shaftMetric9900332-011 BAF / BAV161-4521 Tooth w/45 splined shaftMetric9900332-012 BAF / BAV161-0645mm Straight keyed shaftMetric9900332-013 BAF / BAV225-5024 Tooth w/50 splined shaftMetric9900332-014 BAF / BAV225-0750mm Straight keyed shaftMetric9900332-015 BAF / BAV020 & 030-1213 Tooth splined shaftSAE9900332-016 BAF / BAV020 & 030-087/8 Straight