Service Spools for Backhoe Valves {5051}
- Backhoe Loader:
- 416 (S/N: 5PC1-UP)
- 416B (S/N: 8SG1-UP; 8ZK1-UP)
- 416C (S/N: 1WR1-UP; 1XR1-UP; 4ZN1-UP; 5YN1-UP)
- 416D (S/N: BFP1-UP; BGJ1-UP; BKG1-UP)
- 424D (S/N: BGP1-UP; BKR1-UP)
- 426 (S/N: 7BC1-UP)
- 426B (S/N: 5YJ1-UP; 6KL1-UP)
- 426C (S/N: 1CR1-UP; 1ER1-UP; 1MR1-UP; 1NR1-UP; 1YR1-UP; 1ZR1-UP; 6XN1-UP; 7WN1-UP)
- 428 (S/N: 6TC1-UP)
- 428B (S/N: 7EJ4253-UP)
- 428C (S/N: 2CR1-UP; 8RN1-UP)
- 428D (S/N: BLL1-UP; BMT1-UP; BNB1-UP; BNS1-UP)
- 436 (S/N: 5KF1-UP)
- 436B (S/N: 6MJ1-UP; 7FL1-UP)
- 436C (S/N: 1FR1-UP; 1GR1-UP; 1PR1-UP; 1RR1-UP; 2AR1-UP; 2BR1-UP; 8TN1-UP; 9JN1-UP)
- 438 (S/N: 3DJ1-UP)
- 438B (S/N: 3KK1613-UP)
- 438C (S/N: 1JR1-UP; 1TR1-UP; 2DR1-UP; 9KN1-UP)
- 438D (S/N: BPE1-UP; BPN1-UP)
- 446 (S/N: 6XF1-UP)
- 446B (S/N: 5BL1-UP)
Replacement spools are available for selected circuits of the backhoe valves that are installed on Backhoe Loaders. The replacement spools are designed for reducing drift on selected backhoe circuits. The machine should be operated with hydraulic oil at room temperature in order to determine if the replacement spools function smoothly. Also, the hydraulic system should be warmed up in order to determine if the replacement spools function smoothly. The original spools must be reinstalled if the hydraulic circuits do not function smoothly. Refer to the following tables for correct part numbers.
Note: The spools can only be installed into machines which have mechanical controls.
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Replacement Spools for 416, 426, 428, 436, 438, and 446 Series II Backhoe Loaders     | ||
Hydraulic Circuit     | Part Number     | Description     |
Boom Cylinder Circuit     | 109-8237     | Boom Stem     |
Stick Cylinder Circuit     | 109-8241     | Stick Stem     |
Extendable Stick Cylinder Circuit     | 109-8243     | Stick Stem     |
Stabilizer Cylinder Circuit     | 109-8242     | Stabilizer Stem     |
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Replacement Spools for 416B, 426B, 436B, 438B, and 446B Backhoe Loaders     | ||
Hydraulic Circuit     | Part Number     | Description     |
Boom Cylinder Circuit     | 109-8228     | Boom Stem     |
Stick Cylinder Circuit     | 109-8229     | Stick Stem     |
Extendable Stick Cylinder Circuit     | 109-8236     | Stick Extension Stem     |
Stabilizer Cylinder Circuit     | 109-8230     | Stabilizer Stem     |
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Replacement Spools for 416C, 426C, 428C, 436C, 438C, 416D, 424D, 428D, and 438D Backhoe Loaders     | ||
Hydraulic Circuit     | Part Number     | Description     |
Boom Cylinder Circuit     | 109-8228     | Boom Stem     |
Stick Cylinder Circuit     | 109-8229     | Stick Stem     |
Extendable Stick Cylinder Circuit     | 109-8236     | Stick Extension Stem     |
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