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Cylinders equipped with lock valves can remain pressurized for very long periods of time, even with the hoses removed. Failure to relieve pressure before removing a lock valve or disassembling a cylinder can result in personal injury or death. Ensure all pressure is relieved before removing a lock valve or disassembling a cylinder. |
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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, PERJ1017, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products. Dispose of all fluids according to local regulations and mandates. |
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Hydraulic oil pressure can remain in the hydraulic system on this machine after the engine and pump have been stopped. Serious injury can result if this pressure is not released before any service is done on the hydraulic systems. In order to prevent possible injury, release the hydraulic system pressure before working on any fitting, hose, or hydraulic component. Lower all attachments to the ground before service is started. If the hydraulic system must be serviced, tested, or adjusted with the attachment in the raised position, the attachments and lift cylinders must be supported properly. Always move the machine to a location away from the travel of other machines. Be sure that other personnel are not near the machine when the engine is running and tests or adjustments are being made. |
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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
- Release the system pressure. Refer to Operation and Maintenance Manual, "System Pressure - Release".
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Illustration 1 g06356304 - Install bolt (2) and the nut in wheel lean bar (1).
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Illustration 2 g06356305 - Disconnect hose assemblies (3) and (4).
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Illustration 3 g06356306 - Attach a suitable lifting device to wheel lean cylinder (5). The weight of wheel lean cylinder (5) is approximately
24 kg (53 lb) . - Remove bolts (7) and retainers (6).
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Illustration 4 g06356307 - Remove bolts (9) and lock (8).
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Illustration 5 g06356311 - Remove pin (10).
- Loosen pin (11). Remove wheel lean cylinder (5).
Disassembly and Assembly Information
| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A | 127-4904 | Hydraulic Cylinder Repair Stand Gp | 1 |
| B | 195-4609 | Seal Pick | 1 |
| C | 7M-7456 | Loctite 609 Mounting Compound | - |
| D | 452-6011 | Multipurpose Grease | - |
| E | 9U-7868 | Spanner Wrench | 1 |
| 127-8064 | Adapter Plate Gp | 1 | |
| F | 5P-2145 | Bearing Puller Adapter | 1 |
| 4C-9633 | Puller Stud | 1 | |
| 6V-3160 | Double Acting Cylinder | 1 | |
| 1A-1935 | Full Nut | 1 | |
| 9S-5565 | Pin Puller Sleeve As | 1 | |
| 350-7768 | Electric Hydraulic Pump Gp (115V) | 1 | |
| 350-7769 | Electric Hydraulic Pump Gp (230V) | 1 | |
| G | 1P-0510 | Driver Gp | 1 |
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Cylinders equipped with lock valves can remain pressurized for very long periods of time, even with the hoses removed. Failure to relieve pressure before removing a lock valve or disassembling a cylinder can result in personal injury or death. Ensure all pressure is relieved before removing a lock valve or disassembling a cylinder. |
- Tighten bolt (1) to a torque of
1800 ± 200 N.m (1328 ± 148 lb ft) . - Lubricate sealing lips (2) with a thin covering of the lubricant that is being sealed.
- Apply Tooling (C) to wiper seal (3) groove before you assemble the wiper seal to the head.
- Apply Tooling (D) to the threads of head (4). Tighten head (4) to a torque of
600 ± 130 N·m (440 ± 95 lb ft) . - Install bearing (5) to a distance of
7.4 ± 0.5 mm (0.29 ± 0.02 inch) below the face. - Install bearing (6) to a distance of
7.7 ± 0.5 mm (0.3 ± 0.02 inch) below the face.
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| Illustration 6 | g06356324 |
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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
- Attach a suitable lifting device to wheel lean cylinder (5). The weight of wheel lean cylinder (5) is approximately
24 kg (53 lb) . Install wheel lean cylinder (5). - Install pins (10) and (11).
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Illustration 8 g06356307 - Install lock (8) and bolts (9).
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Illustration 9 g06356306 - Install retainers (6) and bolts (7) in wheel lean cylinder (5).
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Illustration 10 g06356305 - Connect hose assemblies (3) and (4).
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Illustration 11 g06356304 - Remove bolt (2) and the nut from wheel lean bar (1).
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| Illustration 7 | g06356311 |