HYDRAULIC SYSTEM
CYLINDER GPFILTER GP
CYLINDER GP
HYDRAULIC SYSTEM
CYLINDER GP#M00961250210
524-0076: CYLINDER & LINES GP-STICK
524-0076 CYLINDER & LINES GP-STICK
95-MM (3.7-IN) BORE X 885-MM (35-IN) STROKE
PART OF 514-8067 CYLINDER & LINES GP-STICK
AN ATTACHMENT
95-MM (3.7-IN) BORE X 885-MM (35-IN) STROKE
PART OF 514-8067 CYLINDER & LINES GP-STICK
AN ATTACHMENT
Parts for your 308 MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 8T-4137 M | [1] | BOLT (M10X1.5X20-MM) | |
| 2. | 544-4208 | [1] | KIT-BUSHING | |
| (INCLUDES BUSHINGS & WIPER SEALS) | ||||
| 3. | 544-4209 | [1] | KIT-TUBE | |
| (INCLUDES PIPE AS, CLIP & O-RING) | ||||
| 4. | 3B-8488 | [1] | FITTING-GREASE (1/8-27 PTF) | |
| AVAILABLE REPAIR KIT(S): | ||||
| 544-4207 | [1] | KIT-SEAL | ||
| (INCLUDES WIPER, RING, O-RING, ROD SEAL, BUFFER RING, BUSHING, RING RETAINER, O-RING SEALS, BACKUP RINGS, WEAR RINGS, PISTON SEAL & DUST RINGS) | ||||
| M | METRIC PART | |||
#M00961250211
524-0077: CYLINDER & LINES GP-STICK
524-0077 CYLINDER & LINES GP-STICK
95-MM (3.7-IN) BORE X 885-MM (34.8-IN) STROKE
PART OF 576-4975 BOOM AR, 514-8074, 519-8825 LINES AR-STICK
AN ATTACHMENT
95-MM (3.7-IN) BORE X 885-MM (34.8-IN) STROKE
PART OF 576-4975 BOOM AR, 514-8074, 519-8825 LINES AR-STICK
AN ATTACHMENT
Parts for your 308 MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 3B-8488 | [1] | FITTING-GREASE (1/8-27 PTF) | |
| 2. | 8T-4137 M | [3] | BOLT (M10X1.5X20-MM) | |
| 3. | 565-9459 | [1] | TUBE AS | |
| 4. | 565-9461 | [1] | PLATE AS | |
| 5. | 523-7889 | [1] | VALVE GP-LOAD CONTROL | |
| 6. | 568-0081 | [1] | TUBE AS | |
| AVAILABLE REPAIR KIT(S): | ||||
| 544-4207 | [1] | KIT-SEAL | ||
| (INCLUDES WIPER, RING, O-RING, ROD SEAL, BUFFER RING, BUSHING, RING RETAINER, O-RING SEALS, BACKUP RINGS, WEAR RINGS, PISTON SEAL & DUST RINGS) | ||||
| 544-4208 | [1] | KIT-BUSHING | ||
| (INCLUDES BUSHINGS & WIPER SEALS) | ||||
| M | METRIC PART | |||
#M00961250212
305-6780: CYLINDER & LINES GP-THUMB
305-6780 CYLINDER & LINES GP-THUMB
PART OF 305-6741 THUMB AR
AN ATTACHMENT
PART OF 305-6741 THUMB AR
AN ATTACHMENT
Parts for your 308 MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 108-7251 | [2] | CONNECTOR | |
| 2. | 280-2652 | [2] | VALVE-BALL | |
| 3. | 294-0973 | [1] | TOOL | |
| 4. | 305-6716 Y | [1] | CYLINDER GP-THUMB | |
| 5. | 305-6759 I | [2] | HOSE AS | |
| 6. | 439-5338 | [1] | BRACKET | |
| 7. | 439-5339 | [1] | BRACKET | |
| 8. | 148-8364 | [2] | ELBOW AS | |
| (EACH INCLUDES) | ||||
| 3K-0360 | [1] | SEAL-O-RING | ||
| 6V-8398 | [1] | SEAL-O-RING | ||
| 6V-8625 | [1] | ELBOW | ||
| 9. | 148-8393 | [2] | ELBOW AS | |
| (EACH INCLUDES) | ||||
| 6V-9852 | [1] | ELBOW (SWIVEL) | ||
| 7J-9108 | [1] | SEAL-O-RING | ||
| 10. | 148-8446 | [2] | TEE AS-SWIVEL | |
| (EACH INCLUDES) | ||||
| 6V-9838 | [1] | TEE-SWIVEL | ||
| 7J-9108 | [2] | SEAL-O-RING | ||
| 11. | 3K-0360 | [2] | SEAL-O-RING | |
| 12. | 6V-8398 | [2] | SEAL-O-RING | |
| 13. | 9X-6581 | [2] | NUT-O-RING SEAL (1-14-THD) | |
| 14. | 6V-8939 | [2] | REDUCER-O-RING | |
| 15. | 7J-9108 | [2] | SEAL-O-RING | |
| 16. | 8T-4139 M | [4] | BOLT (M12X1.75X30-MM) | |
| 17. | 6V-1889 | [2] | CLIP (LOOP) | |
| 18. | 8T-4223 | [4] | WASHER-HARD (13.5X25.5X3-MM THK) | |
| 19. | 8T-4121 | [4] | WASHER-HARD (11X21X2.5-MM THK) | |
| 20. | 8T-4133 M | [2] | NUT (M10X1.5-THD) | |
| 21. | 8T-4136 M | [2] | BOLT (M10X1.5X25-MM) | |
| I | REFER TO HYDRAULIC INFORMATION SYSTEM | |||
| M | METRIC PART | |||
| Y | SEPARATE ILLUSTRATION | |||
#M00961250213
374-1857: CYLINDER GP-BLADE
374-1857 CYLINDER GP-BLADE
120-MM (4.8-IN) BORE X 157-MM (6.2-IN) STROKE
PART OF 512-2524, 512-2526 BLADE AR-STRAIGHT
AN ATTACHMENT
120-MM (4.8-IN) BORE X 157-MM (6.2-IN) STROKE
PART OF 512-2524, 512-2526 BLADE AR-STRAIGHT
AN ATTACHMENT
Parts for your 308 MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 392-4598 | [1] | ROD AS | |
| 2. | 392-4599 | [1] | HEAD | |
| 3. | 392-4600 | [1] | CYLINDER AS | |
| 4. | 418-5329 | [1] | PISTON | |
| 5. | 418-5330 | [1] | KIT-SEAL (CYLINDER HEAD) | |
| (INCLUDES LIP SEAL, RETAINING RINGS, O-RING SEALS, SEAL AS, BUFFER RING, BEARING & BACKUP RING) | ||||
| 6. | 418-5332 | [1] | KIT-PISTON SEAL (BLADE CYLINDER) | |
| (INCLUDES DUST RINGS, GUIDE RINGS & SEAL AS) | ||||
| 7. | 418-5333 | [1] | KIT-PISTON (BLADE CYLINDER) | |
| (INCLUDES STEEL BALL & PLATE) | ||||
| 8. | 418-5334 | [1] | KIT-BUSHING (BLADE CYLINDER) | |
| (INCLUDES BUSHINGS & WIPER SEALS) | ||||
| 9. | 096-3216 M | [1] | SETSCREW-SOCKET (M12X1.75X12-MM) | |
| 10. | 452-2753 | [1] | FITTING-GREASE | |
| 11. | 418-5335 | [1] | NUT | |
| M | METRIC PART | |||
#M00961250214
521-2883: CYLINDER GP-BUCKET
521-2883 CYLINDER GP-BUCKET
85-MM (3.3-IN) BORE X 742-MM (29.2-IN) STROKE
PART OF 516-7070, 521-7589 LINKAGE AR-BUCKET, 576-4977, 576-4979 STICK AR
AN ATTACHMENT
85-MM (3.3-IN) BORE X 742-MM (29.2-IN) STROKE
PART OF 516-7070, 521-7589 LINKAGE AR-BUCKET, 576-4977, 576-4979 STICK AR
AN ATTACHMENT
Parts for your 308 MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 3B-8489 | [2] | FITTING-GREASE (1/8-27 PTF) | |
| 2. | 8T-4137 M | [1] | BOLT (M10X1.5X20-MM) | |
| 3. | 565-9464 | [1] | KIT-SEAL | |
| (INCLUDES WIPER, RING, O-RING, ROD SEAL, RING BUFFER, BUSHING, RETAINER RING, O-RING SEALS, BACKUP RINGS, WEAR RINGS, PISTON RING, DUST RINGS, BACKUP RINGS) | ||||
| 4. | 565-9470 | [1] | KIT-BUSHING | |
| (INCLUDES BUSHINGS, WIPER SEALS) | ||||
| 5. | 565-9473 | [1] | TUBE AS | |
| M | METRIC PART | |||
#M00961250215
485-5289: CYLINDER GP-COUPLER
485-5289 CYLINDER GP-COUPLER
PART OF 361-1153, 485-5245 LOCK GP-QUICK COUPLER
AN ATTACHMENT
PART OF 361-1153, 485-5245 LOCK GP-QUICK COUPLER
AN ATTACHMENT
Parts for your 308 MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 216-9060 | [1] | PLUG | |
| 2. | 361-1128 | [1] | SEAL | |
| 3. | 361-1140 | [1] | PISTON | |
| 4. | 479-0646 N | [1] | VALVE AS-COUNTERBALANCE | |
| 5. | 485-5284 | [1] | KIT-SEAL | |
| (INCLUDES PARTS MARKED J IN THE GRAPHICS) | ||||
| 6. | 485-5285 | [1] | PISTON | |
| 7. | 485-5286 | [1] | ROD AS | |
| 8. | 4D-2297 | [1] | SEAL-O-RING | |
| 9. | 6V-5192 M | [1] | BOLT-SOCKET HEAD (M8X1.25X30-MM) | |
| AVAILABLE REPAIR KIT(S): | ||||
| 499-9314 N | [1] | KIT-SEAL (COUNTERBALANCE VALVE) | ||
| (INCLUDES RING-BACK UPS & O-RING SEALS) | ||||
| M | METRIC PART | |||
| N | KIT MARKED N SERVICES PART(S) MARKED N | |||
#M00961250216
305-6716: CYLINDER GP-THUMB
305-6716 CYLINDER GP-THUMB
PART OF 305-6780 CYLINDER & LINES GP-THUMB
AN ATTACHMENT
PART OF 305-6780 CYLINDER & LINES GP-THUMB
AN ATTACHMENT
Parts for your 308 MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 276-4170 | [1] | PISTON | |
| 2. | 276-4171 | [1] | HEAD | |
| 3. | 282-6836 | [1] | STOP | |
| 4. | 305-6713 | [1] | ROD AS | |
| 5. | 305-6714 | [1] | CYLINDER AS (THUMB) | |
| 6. | 3B-8489 | [2] | FITTING-GREASE (1/8-27 PTF)(HYDRAULIC) | |
| 7. | 9R-0320 | [4] | BUSHING | |
| AVAILABLE REPAIR KIT(S): | ||||
| 276-4172 | [1] | KIT-SEAL | ||
| (INCLUDES SEALS, RINGS & SETSCREW) | ||||
#M00961250217
519-8850: CYLINDER GP-VARIABLE ADJ BOOM
519-8850 CYLINDER GP-VARIABLE ADJ BOOM
100-MM (4-IN) BORE X 372-MM (14.6-IN) STROKE
PART OF 514-8074 LINES AR-STICK
AN ATTACHMENT
100-MM (4-IN) BORE X 372-MM (14.6-IN) STROKE
PART OF 514-8074 LINES AR-STICK
AN ATTACHMENT
Parts for your 308 MINI HYD EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| (NO BREAKDOWN OF SERVICEABLE PARTS AVAILABLE AT TIME OF PUBLICATION) | ||||
#M00961250218
515-3268: FILTER GP-OIL
515-3268 FILTER GP-OIL -HYDRAULIC FILTER
PART OF 513-1375, 551-2207 TANK & FILTER GP-HYDRAULIC
PART OF 513-1375, 551-2207 TANK & FILTER GP-HYDRAULIC
#M00961250219
550-1905: GUARD AS-BLADE CYLINDER
550-1905 GUARD AS-BLADE CYLINDER
PART OF 512-2524, 512-2526 BLADE AR-STRAIGHT
AN ATTACHMENT
PART OF 512-2524, 512-2526 BLADE AR-STRAIGHT
AN ATTACHMENT
Parts for your 308 MINI HYD EXCAVATOR:
CATERPILLAR SISInformation:
HYDRAULIC SYSTEM
CYLINDER GP
Special Instruction
Procedure to Test the Position Sensor of a Hydraulic Cylinder {1439, 7562}
Procedure to Test the Position Sensor of a Hydraulic Cylinder {1439, 7562}
Procedure to Test the Position Sensor of a Hydraulic Cylinder {1439, 7562}
Technical Information Bulletin
Tee Assembly Fitting is Not Included in Thumb Kits for Certain 308 Mini Hydraulic Excavators {5057, 5362}
Tee Assembly Fitting is Not Included in Thumb Kits for Certain 308 Mini Hydraulic Excavators {5057, 5362}
Tee Assembly Fitting is Not Included in Thumb Kits for Certain 308 Mini Hydraulic Excavators {5057, 5362}
Specifications
Systems Operation
Reuse And Salvage Guidelines
Testing Hydraulic Cylinders Using the <NOBR>188-3926</NOBR> Caterpillar Cylinder Tester and the <NOBR> 9U-6803</NOBR> Caterpillar Cylinder Tester {0784, 7562}
Testing Hydraulic Cylinders Using the188-3926 Caterpillar Cylinder Tester and the 9U-6803 Caterpillar Cylinder Tester {0784, 7562}
Testing Hydraulic Cylinders Using the
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Inspection and Salvage of Hydraulic Cylinder Components {7562}
Inspection and Salvage of Hydraulic Cylinder Components {7562}
Inspection and Salvage of Hydraulic Cylinder Components {7562}
Measuring Bores and Installing Seals in Standard and Oversized Hydraulic Cylinders {5100, 7562}
Measuring Bores and Installing Seals in Standard and Oversized Hydraulic Cylinders {5100, 7562}
Measuring Bores and Installing Seals in Standard and Oversized Hydraulic Cylinders {5100, 7562}
Machining the O-ring Groove into the Face of Oversized Bolted Head Hydraulic Cylinders {0677, 5100, 7562}
Machining the O-ring Groove into the Face of Oversized Bolted Head Hydraulic Cylinders {0677, 5100, 7562}
Machining the O-ring Groove into the Face of Oversized Bolted Head Hydraulic Cylinders {0677, 5100, 7562}
Contamination Control Guidelines
Applied Failure Analysis
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Testing and Adjusting
Bench Test Procedures
Testing Hydraulic Cylinders Using the <NOBR>188-3926</NOBR> Caterpillar Cylinder Tester and the <NOBR> 9U-6803</NOBR> Caterpillar Cylinder Tester {0784, 7562}
Testing Hydraulic Cylinders Using the188-3926 Caterpillar Cylinder Tester and the 9U-6803 Caterpillar Cylinder Tester {0784, 7562}
Testing Hydraulic Cylinders Using the
Disassembly and Assembly
Offset Boom Cylinder - Remove and Install
307.5, 308, 308.5, 309, and 310 Mini Hydraulic Excavator Machine Systems
307.5, 308, 308.5, 309, and 310 Mini Hydraulic Excavator Machine Systems
Blade Cylinder - Remove and Install
307.5, 308, 308.5, 309, and 310 Mini Hydraulic Excavator Machine Systems
307.5, 308, 308.5, 309, and 310 Mini Hydraulic Excavator Machine Systems
Bucket Cylinder - Remove and Install
307.5, 308, 308.5, 309, and 310 Mini Hydraulic Excavator Machine Systems
307.5, 308, 308.5, 309, and 310 Mini Hydraulic Excavator Machine Systems
Stick Cylinder - Remove and Install
307.5, 308, 308.5, 309, and 310 Mini Hydraulic Excavator Machine Systems
307.5, 308, 308.5, 309, and 310 Mini Hydraulic Excavator Machine Systems
Stick Cylinder - Disassemble
307.5, 308, 308.5, 309, and 310 Mini Hydraulic Excavator Machine Systems
307.5, 308, 308.5, 309, and 310 Mini Hydraulic Excavator Machine Systems
Boom Cylinder - Remove and Install
307.5, 308, 308.5, 309, and 310 Mini Hydraulic Excavator Machine Systems
307.5, 308, 308.5, 309, and 310 Mini Hydraulic Excavator Machine Systems