HYDRAULIC SYSTEM
MOTOR GPLINES GP
PUMP GP
SWIVEL GP
HYDRAULIC SYSTEM
MOTOR GP#SEBP59810240
265-8748: MOTOR & MTG GP-SWING
265-8748 MOTOR & MTG GP-SWING
PART OF 378-2262 POWER TRAIN AR
PART OF 378-2262 POWER TRAIN AR
Parts for your 305E MINI HYD EXCAVATOR:
CATERPILLAR SIS#SEBP59810241
219-7710: MOTOR GP-GEROTOR
Parts for your 305E MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| AVAILABLE REPAIR KIT(S): | ||||
| 267-1323 | [1] | KIT-SEAL | ||
| (INCLUDES O-RINGS, HIGH PRESSURE SHAFT SEAL, DUST SEAL RING & SEAL RING) | ||||
#SEBP59810242
219-7720: MOTOR GP-GEROTOR
#SEBP59810243
438-4859: PLUG GP
Parts for your 305E MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 438-4911 | [2] | PLUG |
#SEBP59810244
376-2014: PUMP & MTG GP-MAIN HYDRAULIC
376-2014 PUMP & MTG GP-MAIN HYDRAULIC
PART OF 377-4509 HYDRAULIC AR
Type 1
PART OF 377-4509 HYDRAULIC AR
Type 1
Parts for your 305E MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 388-6412 M | [8] | BOLT (M10X1.25X50-MM) | |
| 2. | 267-1082 | [1] | COUPLING-PUMP | |
| 3. | 374-2027 Y | [1] | PUMP GP-MAIN HYDRAULIC | |
| 4. | 378-1247 | [1] | HOUSING AS-FLYWHEEL | |
| 520-0323 | [2] | PIN-DOWEL | ||
| 5. | 191-7503 M | [3] | BOLT (M12X1.75X16-MM) | |
| 6. | 8T-4121 | [7] | WASHER-HARD (11X21X2.5-MM THK) | |
| 7. | 8T-7338 M | [2] | BOLT (M16X2X45-MM) | |
| 8. | 9X-2027 | [1] | WASHER (11X18X2-MM THK) | |
| 9. | 9X-8257 | [2] | WASHER (17.5X30X3.5-MM THK) | |
| M | METRIC PART | |||
| Y | SEPARATE ILLUSTRATION | |||
#SEBP59810245
376-2014: PUMP & MTG GP-MAIN HYDRAULIC
376-2014 PUMP & MTG GP-MAIN HYDRAULIC
PART OF 377-4509 HYDRAULIC AR
Type 2
PART OF 377-4509 HYDRAULIC AR
Type 2
Parts for your 305E MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 388-6412 M | [8] | BOLT (M10X1.25X50-MM) | |
| 2. | 390-8885 C | [1] | COUPLING-PUMP | |
| 3. | 374-2027 Y | [1] | PUMP GP-MAIN HYDRAULIC | |
| 4. | 378-1247 | [1] | HOUSING AS-FLYWHEEL | |
| 520-0323 | [2] | PIN-DOWEL | ||
| 5. | 6V-8200 CM | [3] | BOLT-SOCKET HEAD (M12X1.75X35-MM) | |
| 6. | 8T-4121 | [7] | WASHER-HARD (11X21X2.5-MM THK) | |
| 7. | 8T-7338 M | [2] | BOLT (M16X2X45-MM) | |
| 8. | 9X-2027 | [1] | WASHER (11X18X2-MM THK) | |
| 9. | 9X-8257 | [2] | WASHER (17.5X30X3.5-MM THK) | |
| C | CHANGE FROM PREVIOUS TYPE | |||
| M | METRIC PART | |||
| Y | SEPARATE ILLUSTRATION | |||
#SEBP59810246
279-4699: PUMP GP-GEAR
279-4699 PUMP GP-GEAR -PILOT
PART OF 374-2027 PUMP GP-MAIN HYDRAULIC
PART OF 374-2027 PUMP GP-MAIN HYDRAULIC
Parts for your 305E MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| (NO SERVICED PARTS) | ||||
#SEBP59810247
374-2027: PUMP GP-MAIN HYDRAULIC
374-2027 PUMP GP-MAIN HYDRAULIC
PART OF 376-2014 PUMP & MTG GP-MAIN HYDRAULIC
PART OF 376-2014 PUMP & MTG GP-MAIN HYDRAULIC
Parts for your 305E MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 279-4683 | [1] | BEARING | |
| 2. | 191-3925 | [1] | BEARING | |
| 3. | 279-4684 | [1] | SEAL | |
| 4. | 6V-7723 | [1] | RING-RETAINING | |
| 5. | 279-4685 | [1] | SHAFT | |
| 6. | 191-3918 | [1] | WASHER | |
| 7. | 191-3920 | [1] | WASHER | |
| 8. | 279-4686 | [1] | GASKET | |
| 9. | 279-4687 | [3] | PIN | |
| 10. | 390-5811 | [2] | BUSHING | |
| 11. | 139-7355 | [2] | SCREW | |
| 12. | 279-4689 | [1] | PLATE | |
| 13. | 279-4690 | [1] | PIN | |
| 14. | 095-1575 JL | [8] | SEAL-O-RING | |
| 15. | 279-4691 | [1] | ORIFICE | |
| 16. | 279-4692 | [1] | STOPPER | |
| 17. | 279-4693 | [1] | PIN | |
| 18. | 280-0396 | [1] | SPRING | |
| 19. | 280-0397 | [1] | SPRING | |
| 20. | 279-4696 | [2] | SEAT-SPRING | |
| 21. | 279-4697 | [1] | VALVE AS-PUMP (HYDRAULIC) | |
| 095-1575 | [1] | SEAL-O-RING | ||
| 095-1582 | [1] | SEAL-O-RING | ||
| 095-1587 | [1] | SEAL-O-RING | ||
| 099-7197 | [1] | PLUG | ||
| 22. | 095-1587 | [1] | SEAL-O-RING | |
| 23. | 099-7197 | [1] | PLUG | |
| 24. | 095-1582 | [1] | SEAL-O-RING | |
| 25. | 279-4698 | [1] | NUT | |
| 26. | 279-4699 Y | [1] | PUMP GP-GEAR (PILOT) | |
| 27. | 303-4492 | [2] | BOLT | |
| 28. | 8T-4224 | [2] | WASHER-HARD (8.8X16X2-MM THK) | |
| 29. | 6V-8200 M | [6] | BOLT-SOCKET HEAD (M12X1.75X35-MM) | |
| 30. | 279-4706 | [3] | PLUG | |
| 31. | 095-1584 L | [1] | SEAL-O-RING | |
| 32. | 3J-1907 JL | [4] | SEAL-O-RING | |
| 33. | 6V-5683 M | [4] | BOLT (M6X1X16-MM) | |
| 34. | 280-0398 | [1] | STOPPER | |
| 35. | 279-4701 J | [1] | SEAL-O-RING | |
| 36. | 279-4702 | [1] | PIN | |
| 37. | 095-1571 | [1] | SEAL-O-RING | |
| 38. | 279-4703 J | [1] | SEAL-O-RING | |
| 39. | 279-4704 | [1] | ORIFICE | |
| 40. | 279-4705 J | [1] | SEAL-O-RING | |
| 41. | 279-4710 | [1] | SWASHPLATE GP | |
| 42. | 279-4711 | [1] | BARREL GP-PUMP | |
| 43. | 332-1294 Y | [1] | VALVE GP-PUMP CONTROL (MAIN HYDRAULIC) | |
| AVAILABLE REPAIR KIT(S): | ||||
| 279-4707 J | [1] | KIT-SEAL (MAIN HYDRAULIC PUMP) | ||
| 279-4708 | [1] | KIT-SEAL (MAIN HYDRAULIC PUMP) | ||
| 279-4709 L | [1] | KIT-SEAL (MAIN HYDRAULIC PUMP) | ||
| J | KIT MARKED J SERVICES PART(S) MARKED J | |||
| L | KIT MARKED L SERVICES PART(S) MARKED L | |||
| M | METRIC PART | |||
| Y | SEPARATE ILLUSTRATION | |||
#SEBP59810248
266-6836: SWIVEL GP
Parts for your 305E MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 274-3344 | [1] | SHAFT | |
| 2. | 274-3346 | [1] | HOUSING | |
| 3. | 294-1868 | [1] | COVER | |
| 4. | 274-3349 | [1] | SPACER | |
| 5. | 169-1136 | [1] | PIN | |
| 6. | 274-3351 | [6] | SEAL AS | |
| 7. | 193-5330 | [4] | SEAL AS | |
| 8. | 095-1623 | [1] | SEAL-O-RING | |
| 9. | 095-1713 | [2] | SEAL-O-RING | |
| 10. | 8T-5376 | [1] | SEAL-O-RING | |
| 11. | 146-4875 | [1] | SEAL-BACK UP | |
| 12. | 146-4877 | [1] | SEAL-DUST | |
| 13. | 095-0929 | [1] | RING-RETAINING | |
| 14. | 9X-6032 M | [4] | BOLT-SOCKET HEAD (M10X1.5X30-MM) | |
| 15. | 095-0966 | [5] | PLUG | |
| M | METRIC PART | |||
#SEBP59810249
373-4963: SWIVEL GP
Parts for your 305E MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 269-0337 | [6] | SEAL | |
| 2. | 376-2017 | [1] | SEAL | |
| 3. | 251-8485 | [1] | COVER | |
| 4. | 251-8486 | [1] | HOUSING | |
| 5. | 251-8487 | [1] | ROTOR | |
| 6. | 251-8488 | [1] | SEAL | |
| 7. | 8T-4195 M | [4] | BOLT (M10X1.5X30-MM) | |
| 8. | 8T-4121 | [4] | WASHER-HARD (11X21X2.5-MM THK) | |
| 9. | 8T-4908 M | [2] | BOLT (M8X1.25X25-MM) | |
| 10. | 095-1714 | [1] | SEAL-O-RING | |
| 11. | 251-8489 | [1] | RETAINER | |
| 12. | 095-1623 | [1] | SEAL-O-RING | |
| 13. | 095-1710 | [1] | SEAL-O-RING | |
| 14. | 252-5417 | [3] | PLUG | |
| 15. | 251-8490 | [1] | PIN | |
| 16. | 9S-8004 | [3] | PLUG (9/16-18-THD) | |
| 17. | 3J-1907 | [3] | SEAL-O-RING | |
| M | METRIC PART | |||
Information:
HYDRAULIC SYSTEM
MOTOR GP
Special Instruction
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Specifications
Travel Motor and Mounting
305.5E CR and 305E CR Mini Hydraulic Excavators Machine System Specifications
305.5E CR and 305E CR Mini Hydraulic Excavators Machine System Specifications
Systems Operation
Reuse And Salvage Guidelines
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 9, 10, and 11) {5061, 506G, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 9, 10, and 11) {5061, 506G, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 9, 10, and 11) {5061, 506G, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 1, 2, and 3) {5061, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 1, 2, and 3) {5061, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 1, 2, and 3) {5061, 5073}
General Reuse and Salvage Guideline for Hydraulic Piston Pumps and Motors {5058, 5070}
General Reuse and Salvage Guideline for Hydraulic Piston Pumps and Motors {5058, 5070}
General Reuse and Salvage Guideline for Hydraulic Piston Pumps and Motors {5058, 5070}
Testing and Adjusting
Travel on Level Ground - Test - Optional Test
305E CR and 305.5E CR Mini Hydraulic Excavators Hydraulic System
305E CR and 305.5E CR Mini Hydraulic Excavators Hydraulic System
Swing Speed and Overswing on Level Ground - Check
305E CR and 305.5E CR Mini Hydraulic Excavators Hydraulic System
305E CR and 305.5E CR Mini Hydraulic Excavators Hydraulic System
Swing Speed and Swing Drift on a Slope - Check
305E CR and 305.5E CR Mini Hydraulic Excavators Hydraulic System
305E CR and 305.5E CR Mini Hydraulic Excavators Hydraulic System
Bench Test Procedures
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Disassembly and Assembly
Final Drive and Travel Motor - Disassemble
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
Final Drive and Travel Motor - Assemble
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
Final Drive and Travel Motor - Remove
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
Final Drive and Travel Motor - Install
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
Final Drive and Travel Motor - Disassemble
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
Swing Motor and Swing Drive - Remove
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
Swing Motor and Swing Drive - Disassemble
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
Swing Motor and Swing Drive - Assemble
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
Swing Motor and Swing Drive - Install
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
Final Drive and Travel Motor - Assemble
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems