HYDRAULIC SYSTEM
VALVE GP-PILOTMOTOR GP
VALVE GP-FLOW CONTROL
IMPLEMENTS
BOOM GPLINKAGE GP
STICK GP
HYDRAULIC SYSTEM
VALVE GP-PILOT#SEBP43780220
191-1392: VALVE GP-PILOT
191-1392 VALVE GP-PILOT
PART OF 244-9583 CONTROL GP-BLADE
PART OF 244-9583 CONTROL GP-BLADE
Parts for your 305.5 MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 6I-6911 | [2] | SHIM | |
| 2. | 6I-6912 | [2] | SHIM | |
| 3. | 198-7543 | [2] | GUIDE | |
| 4. | 198-8153 | [2] | SCREW | |
| 5. | 198-8154 | [2] | SPRING | |
| 6. | 096-4535 | [2] | SLEEVE | |
| 7. | 099-0361 | [2] | SHIM | |
| 8. | 132-9046 | [2] | SHIM (0.1-MM THK) | |
| 9. | 198-8156 | [1] | BOOT | |
| 10. | 204-1974 | [1] | PIN | |
| 11. | 198-8159 | [2] | SLEEVE | |
| 12. | 198-8160 | [1] | COLLAR | |
| 13. | 198-8161 | [2] | SPRING | |
| 14. | 198-8162 | [2] | HOLDER | |
| 15. | 198-8163 | [1] | SPRING | |
| 16. | 198-8164 | [1] | SPRING | |
| 17. | 204-1975 | [1] | CAM-ACTUATOR | |
| 18. | 198-8165 | [1] | BOLT | |
| 19. | 8T-8442 M | [2] | BOLT-SOCKET HEAD (M6X1X30-MM) | |
| 20. | 8T-1158 M | [2] | BOLT-SOCKET HEAD (M8X1.25X20-MM) | |
| 21. | 096-4543 | [1] | BOLT | |
| 22. | 095-1260 M | [1] | SETSCREW-SOCKET (M6X1X6-MM) | |
| 23. | 198-8166 | [2] | WASHER | |
| 24. | 198-8167 | [2] | NUT | |
| 25. | 198-8168 | [2] | BALL | |
| 26. | 095-1578 | [2] | SEAL-O-RING | |
| 27. | 8T-0211 | [2] | SEAL-O-RING | |
| 28. | 204-1976 | [1] | LEVER AS | |
| Z | [1] | LEVER | ||
| 28A. | Z | [1] | PLATE | |
| 29. | 198-8176 | [2] | ROD AS | |
| (EACH INCLUDES) | ||||
| Z | [2] | ROD | ||
| 29A. | Z | [2] | BALL | |
| 30. | 198-8169 | [1] | BODY AS | |
| Z | [1] | BODY | ||
| 30A. | Z | [2] | SPOOL | |
| 31. | 204-1979 | [1] | COVER AS | |
| Z | [1] | COVER | ||
| 31A. | [2] | BUSHING | ||
| M | METRIC PART | |||
| Z | NOT SERVICED SEPARATELY | |||
#SEBP43780221
193-6360: VALVE GP-PILOT
193-6360 VALVE GP-PILOT
PART OF 191-1387, 191-1388 CONTROL GP-JOYSTICK
PART OF 191-1387, 191-1388 CONTROL GP-JOYSTICK
Parts for your 305.5 MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 171-0087 | [1] | BELLOWS | |
| 2. | 7Y-8463 M | [1] | NUT (M14X2-THD) | |
| 3. | 131-5915 M | [1] | NUT-SPECIAL | |
| 4. | 165-9431 | [1] | PLATE | |
| 5. | 4I-6365 | [1] | JOINT | |
| 6. | 194-0784 | [2] | SPRING | |
| 7. | 190-7751 | [2] | SPRING | |
| 8. | 099-6137 | [4] | WASHER (6.1X9X0.2-MM THK) | |
| 9. | 095-1586 | [4] | SEAL-O-RING | |
| 10. | 094-0876 | [4] | SEAL | |
| 11. | 114-8242 | [2] | PUSHROD | |
| 12. | 135-8956 | [2] | ROD | |
| 13. | 096-1628 | [4] | PLUG | |
| 14. | 165-9438 | [1] | PLATE | |
| 15. | 139-4805 | [1] | BUSHING | |
| 16. | 139-4804 | [1] | PIN | |
| 17. | 6V-8337 M | [2] | BOLT-SOCKET HEAD (M8X1.25X35-MM) | |
| 18. | 096-4498 | [2] | WASHER-SEALING | |
| M | METRIC PART | |||
#SEBP43780222
274-9033: VALVE GP-RELIEF
274-9033 VALVE GP-RELIEF -SWING
PART OF 274-9032 MOTOR GP-SWING
PART OF 274-9032 MOTOR GP-SWING
Parts for your 305.5 MINI HYD EXCAVATOR:
CATERPILLAR SIS#SEBP43780223
164-2274: VALVE GP-SELECTOR
164-2274 VALVE GP-SELECTOR -JOYSTICK PATTERN
PART OF 199-0495, 274-8218 LINES GP-PILOT
AN ATTACHMENT
PART OF 199-0495, 274-8218 LINES GP-PILOT
AN ATTACHMENT
Parts for your 305.5 MINI HYD EXCAVATOR:
CATERPILLAR SIS#SEBP43780224
259-7925: BOOM AR
259-7925 BOOM AR
AN ATTACHMENT
AN ATTACHMENT
#SEBP43780225
259-7922: BOOM GP
Parts for your 305.5 MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 297-8585 | [1] | BOOM & BEARING AS | |
| 1A. | 205-3358 | [4] | BEARING | |
| 2. | 093-1433 | [2] | SEAL-LIP TYPE | |
| 3. | 133-2717 B | [2] | SHIM (0.5-MM THK) | |
| 4. | 261-1203 | [1] | PIN AS | |
| 5. | 211-9750 B | [4] | SHIM (0.5-MM THK) | |
| 6. | 211-9749 B | [2] | SHIM (1-MM THK) | |
| 7. | 269-6395 | [1] | PIN AS | |
| 8. | 8T-4137 M | [3] | BOLT (M10X1.5X20-MM) | |
| 9. | 6V-8513 | [3] | WASHER-HARD (11X35X2.5-MM THK) | |
| 10. | 261-1205 | [1] | PIN AS | |
| 11. | 3B-8485 | [2] | ELBOW | |
| B | USE AS REQUIRED | |||
| M | METRIC PART | |||
#SEBP43780226
333-5785: BOOM GP
Parts for your 305.5 MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 3B-8485 | [2] | ELBOW | |
| 2. | 093-1433 | [2] | SEAL-LIP TYPE | |
| 3. | 133-2717 B | [2] | SHIM (0.5-MM THK) | |
| 4. | 211-9749 B | [2] | SHIM (1-MM THK) | |
| 5. | 211-9750 B | [4] | SHIM (0.5-MM THK) | |
| 6. | 261-1203 | [1] | PIN AS | |
| 7. | 261-1205 | [1] | PIN AS | |
| 8. | 269-6395 | [1] | PIN AS | |
| 9. | [1] | BOOM & BEARING AS | ||
| 9A. | 205-3358 | [4] | BEARING | |
| 10. | 6V-8513 | [3] | WASHER-HARD (11X35X2.5-MM THK) | |
| 11. | 8T-4137 M | [3] | BOLT (M10X1.5X20-MM) | |
| B | USE AS REQUIRED | |||
| M | METRIC PART | |||
#SEBP43780227
259-7959: LINKAGE AR-BUCKET
259-7959 LINKAGE AR-BUCKET
AN ATTACHMENT
AN ATTACHMENT
Parts for your 305.5 MINI HYD EXCAVATOR:
CATERPILLAR SIS#SEBP43780228
192-5225: LINKAGE GP-BUCKET
Parts for your 305.5 MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 172-2713 | [1] | LINK | |
| 2. | 172-2714 | [1] | LINK AS | |
| 3. | 243-0875 | [1] | LINK & BEARING AS | |
| 3A. | 093-1430 | [6] | SEAL-LIP TYPE | |
| 3B. | 146-2971 | [4] | BUSHING | |
| 4. | 8T-4133 M | [4] | NUT (M10X1.5-THD) | |
| 5. | 7X-2543 M | [1] | BOLT (M10X1.5X120-MM) | |
| 6. | 8T-4198 M | [1] | BOLT (M10X1.5X100-MM) | |
| 7. | 195-6222 | [2] | PIN | |
| 8. | 223-4723 | [1] | PIN AS | |
| 9. | 217-9550 | [2] | PIN | |
| 10. | 3B-8489 | [4] | FITTING-GREASE (1/8-27 PTF) | |
| 11. | 8T-4176 M | [2] | BOLT (M12X1.75X90-MM) | |
| 12. | 8T-4244 M | [4] | NUT (M12X1.75-THD) | |
| 13. | 176-8464 B | [4] | SHIM (0.5-MM THK) | |
| 14. | 176-8465 B | [7] | SHIM (1-MM THK) | |
| 15. | 8T-4137 M | [1] | BOLT (M10X1.5X20-MM) | |
| 16. | 6V-8513 | [1] | WASHER-HARD (11X35X2.5-MM THK) | |
| B | USE AS REQUIRED | |||
| M | METRIC PART | |||
#SEBP43780229
200-6575: STICK AR-HOE
200-6575 STICK AR-HOE
AN ATTACHMENT
AN ATTACHMENT
Parts for your 305.5 MINI HYD EXCAVATOR:
CATERPILLAR SISInformation:
HYDRAULIC SYSTEM
VALVE GP-PILOT
Specifications
Systems Operation
Implements and Swing Controls Alternate Patterns - If Equipped
305.5 and 306 Mini Hydraulic Excavators Hydraulic System
305.5 and 306 Mini Hydraulic Excavators Hydraulic System
Disassembly and Assembly

