HYDRAULIC SYSTEM
VALVE GP-PILOTOPERATOR STATION
COVER GPDOOR GP
DUCT GP
CAB GP
HYDRAULIC SYSTEM
VALVE GP-PILOT#SEBP44600470
319-7904: CONTROL GP-PILOT OPERATED HYD
319-7904 CONTROL GP-PILOT OPERATED HYD -LH
S/N DMY2536-2835
PART OF 319-7903 CONTROL GP-JOYSTICK
AN ATTACHMENT
S/N DMY2536-2835
PART OF 319-7903 CONTROL GP-JOYSTICK
AN ATTACHMENT
Parts for your 303.5C MINI HYD EXCAVATOR:
CATERPILLAR SIS#SEBP44600471
319-7906: CONTROL GP-PILOT OPERATED HYD
319-7906 CONTROL GP-PILOT OPERATED HYD -RH
S/N DMY2536-2835
PART OF 319-7905 CONTROL GP-JOYSTICK
AN ATTACHMENT
S/N DMY2536-2835
PART OF 319-7905 CONTROL GP-JOYSTICK
AN ATTACHMENT
Parts for your 303.5C MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 267-4429 | [1] | BOOT | |
| 2. | 297-9329 | [1] | LEVER | |
| 3. | 319-7233 | [1] | CONTROL GP-HANDLE (RH) | |
| 102-8802 | [1] | KIT-RECEPTACLE (2-PIN) | ||
| 102-8805 | [1] | KIT-RECEPTACLE (6-PIN) | ||
| (EACH RECEPTACLE KIT INCLUDES RECEPTACLE AS & WEDGE) | ||||
| 9X-3401 | [8] | PIN-CONNECTOR (16-GA TO 18-GA) | ||
| 4. | 117-8683 | [1] | PIN-SPRING | |
#SEBP44600472
283-2049: COVER GP-ACCESS
Parts for your 303.5C MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 274-1073 | [1] | COVER AS | |
| 2. | 274-1074 | [1] | COVER | |
| 3. | 286-2742 | [2] | PLATE | |
| 4. | 286-2743 | [1] | PLATE | |
| 5. | 283-2122 | [1] | COVER AS-ACCESS | |
| 6. | 283-2123 | [1] | COVER AS-ACCESS | |
| 7. | 8T-4121 | [11] | WASHER-HARD (11X21X2.5-MM THK) | |
| 8. | 8T-4137 M | [5] | BOLT (M10X1.5X20-MM) | |
| 9. | 8T-4191 M | [6] | BOLT (M10X1.5X16-MM) | |
| 10. | 7K-1181 | [2] | STRAP-CABLE | |
| M | METRIC PART | |||
#SEBP44600473
312-6347: COVER GP-ACCESS
Parts for your 303.5C MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 274-1073 | [1] | COVER AS | |
| 2. | 283-2122 | [1] | COVER AS-ACCESS | |
| 3. | 283-2123 | [1] | COVER AS-ACCESS | |
| 4. | 286-2742 | [2] | PLATE | |
| 5. | 286-2743 | [1] | PLATE | |
| 6. | 312-4991 | [1] | COVER | |
| 7. | 8T-4121 | [11] | WASHER-HARD (11X21X2.5-MM THK) | |
| 8. | 8T-4137 M | [5] | BOLT (M10X1.5X20-MM) | |
| 9. | 8T-4191 M | [6] | BOLT (M10X1.5X16-MM) | |
| 10. | 7K-1181 | [2] | STRAP-CABLE | |
| M | METRIC PART | |||
#SEBP44600474
281-1195: DOOR GP-CAB
Parts for your 303.5C MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 281-1196 | [1] | DOOR AS-CAB | |
| 2. | 280-7544 | [1] | HANDLE | |
| 3. | 5C-2890 M | [2] | NUT (M6X1-THD) | |
| 4. | 196-1441 | [1] | LOCK AS | |
| 5. | 132-7625 | [1] | LOCK AS | |
| 6. | 280-7548 | [1] | LOCK AS | |
| 7. | 8T-4171 M | [4] | BOLT (M6X1X12-MM) | |
| 8. | 277-6030 | [1] | HANDLE | |
| 9. | 281-6262 | [2] | SCREW (M5X0.8X20-MM) | |
| 10. | 277-6031 | [1] | HANDLE | |
| 11. | 281-6263 | [2] | SCREW (M3X16-MM) | |
| 12. | 281-1200 | [2] | LOCKNUT (M3X0.5-THD) | |
| 13. | 293-3116 | [1] | ROD AS | |
| 14. | 095-0742 M | [2] | SCREW-MACHINE (M6X1X16-MM) | |
| 15. | 281-6264 | [2] | BOLT (M8X16-MM) | |
| 16. | 280-7552 | [1] | COVER | |
| 17. | 281-3650 | [1] | SEAL | |
| 18. | 277-6032 | [1] | COVER | |
| 19. | 280-7554 | [3] | WASHER-CONICAL (6.5X15.8X5.4-MM THK) | |
| 20. | 281-6265 | [3] | SCREW (M6X16-MM) | |
| 21. | 289-9408 | [1] | SCREW | |
| 22. | 281-1199 | [1] | BRACKET-ROLLER | |
| 23. | 280-0408 M | [4] | BOLT (M8X1.25X20-MM) | |
| 24. | 280-7555 | [1] | BRACKET | |
| 25. | 280-7559 | [1] | BRACKET | |
| 26. | 280-7561 | [1] | GLASS (LH) | |
| 27. | 281-3655 | [1] | CUSHION | |
| 28. | 438-4910 | [1] | SEAL | |
| 29. | 281-5485 M | [2] | BOLT (M8X1.25X16-MM) | |
| M | METRIC PART | |||
#SEBP44600475
282-9306: DUCT GP-CAB AIR
Parts for your 303.5C MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 8Y-6967 | [4] | LOUVER AS-VENT | |
| 2. | 171-4046 | [1] | LOUVER AS-VENT | |
| 3. | 273-9214 | [1] | DUCT AS (FACE) | |
| 4. | 273-9215 | [1] | DUCT AS-FRONT | |
| 5. | 273-9216 | [1] | JOINT | |
| 6. | 273-9217 | [1] | DUCT AS-REAR (RH) | |
| 7. | 273-9218 | [1] | DUCT AS-REAR (LH) | |
| 8. | 273-9219 | [1] | DUCT AS-REAR | |
| 9. | 295-4573 | [1] | COVER | |
| 10. | 278-5103 | [1] | HOLDER | |
| 11. | 104-2091 | [4] | SCREW-FLAT HEAD (6-20X0.5-IN) | |
| 12. | 128-2135 M | [10] | SCREW-TRUSS HEAD (M6X1X13-MM) | |
| 13. | 9X-2042 M | [3] | SCREW-TRUSS HEAD (M6X1X12-MM) | |
| 14. | 9X-2044 M | [3] | SCREW-TRUSS HEAD (M6X1X16-MM) | |
| M | METRIC PART | |||
#SEBP44600476
282-9310: DUCT GP-CAB AIR
Parts for your 303.5C MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 8Y-6967 | [2] | LOUVER AS-VENT | |
| 2. | 171-4046 | [1] | LOUVER AS-VENT | |
| 3. | 273-9214 | [1] | DUCT AS (FACE) | |
| 4. | 295-4573 | [1] | COVER | |
| 5. | 278-5103 | [1] | HOLDER | |
| 6. | 290-6225 | [1] | DUCT AS | |
| 7. | 9X-2044 M | [3] | SCREW-TRUSS HEAD (M6X1X16-MM) | |
| 8. | 104-2091 | [4] | SCREW-FLAT HEAD (6-20X0.5-IN) | |
| 9. | 128-2135 M | [6] | SCREW-TRUSS HEAD (M6X1X13-MM) | |
| 10. | 9X-2042 M | [3] | SCREW-TRUSS HEAD (M6X1X12-MM) | |
| M | METRIC PART | |||
#SEBP44600477
356-3821: DUCT GP-CAB AIR
Parts for your 303.5C MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 8Y-6967 | [4] | LOUVER AS-VENT | |
| 2. | 109-2356 | [1] | PLUG | |
| 3. | 111-7899 | [1] | GASKET | |
| 4. | 171-4046 | [1] | LOUVER AS-VENT | |
| 5. | 273-9214 | [1] | DUCT AS | |
| 6. | 273-9215 | [1] | DUCT AS-FRONT | |
| 7. | 273-9216 | [1] | JOINT | |
| 8. | 278-5103 | [1] | HOLDER | |
| 9. | 295-4573 | [1] | COVER | |
| 10. | 355-6784 | [1] | DUCT AS-REAR | |
| 11. | 104-2091 | [4] | SCREW-FLAT HEAD (6-20X0.5-IN) | |
| 12. | 128-2135 M | [8] | SCREW-TRUSS HEAD (M6X1X13-MM) | |
| 13. | 9X-2042 M | [3] | SCREW-TRUSS HEAD (M6X1X12-MM) | |
| 14. | 9X-2044 M | [3] | SCREW-TRUSS HEAD (M6X1X16-MM) | |
| M | METRIC PART | |||
#SEBP44600478
276-3315: GUARD GP-CANOPY
276-3315 GUARD GP-CANOPY -MESH
AN ATTACHMENT
AN ATTACHMENT
Parts for your 303.5C MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 276-3313 | [1] | PIPE | |
| 2. | 305-0254 | [1] | FLOOR MAT | |
| 3. | 355-5421 | [1] | SUPPORT AS | |
| 4. | 283-5325 | [1] | PLATE | |
| 5. | 283-5425 Y | [1] | GUARD GP-WINDOW (CANOPY) | |
| 6. | 5P-4116 | [2] | WASHER-HARD (8.8X20.5X2-MM THK) | |
| 7. | 8T-4121 | [2] | WASHER-HARD (11X21X2.5-MM THK) | |
| 8. | 8T-4137 M | [2] | BOLT (M10X1.5X20-MM) | |
| 9. | 8T-4183 M | [6] | BOLT (M12X1.75X40-MM) | |
| 10. | 8T-4192 M | [7] | BOLT (M12X1.75X25-MM) | |
| 11. | 8T-4200 M | [2] | BOLT (M8X1.25X16-MM) | |
| 12. | 8T-4223 | [15] | WASHER-HARD (13.5X25.5X3-MM THK) | |
| 13. | 8T-4956 M | [2] | BOLT (M12X1.75X35-MM) | |
| M | METRIC PART | |||
| Y | SEPARATE ILLUSTRATION | |||
#SEBP44600479
276-3316: GUARD GP-CANOPY
276-3316 GUARD GP-CANOPY -FRONT GLASS
AN ATTACHMENT
AN ATTACHMENT
Parts for your 303.5C MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 276-3313 | [1] | PIPE | |
| 2. | 305-0254 | [1] | FLOOR MAT | |
| 3. | 355-5421 | [1] | SUPPORT AS | |
| 4. | 283-5325 | [1] | PLATE | |
| 5. | 283-5452 Y | [1] | GUARD GP-WINDOW (CANOPY) | |
| 6. | 5P-4116 | [2] | WASHER-HARD (8.8X20.5X2-MM THK) | |
| 7. | 8T-4121 | [2] | WASHER-HARD (11X21X2.5-MM THK) | |
| 8. | 8T-4137 M | [2] | BOLT (M10X1.5X20-MM) | |
| 9. | 8T-4183 M | [6] | BOLT (M12X1.75X40-MM) | |
| 10. | 8T-4192 M | [7] | BOLT (M12X1.75X25-MM) | |
| 11. | 8T-4200 M | [2] | BOLT (M8X1.25X16-MM) | |
| 12. | 8T-4223 | [15] | WASHER-HARD (13.5X25.5X3-MM THK) | |
| 13. | 8T-4956 M | [2] | BOLT (M12X1.75X35-MM) | |
| M | METRIC PART | |||
| Y | SEPARATE ILLUSTRATION | |||
Information:
HYDRAULIC SYSTEM
VALVE GP-PILOT
Specifications
Systems Operation
Implements and Swing Controls Alternate Patterns
303.5C CR and 303C CR Mini Hydraulic Excavators Hydraulic System
303.5C CR and 303C CR Mini Hydraulic Excavators Hydraulic System
Disassembly and Assembly


