| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A | 311-1362 | Vacuum Cap | 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. |
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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
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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, NENG2500, "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. |
- Release the system pressure. Refer to Operation and Maintenance Manual, "System Pressure - Release".
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Illustration 1 g01368952 - Install Tooling (A) onto the hydraulic tank. Attach an air supply hose onto Tooling (A). Apply
138 kPa (20 psi) . This procedure will pull a vacuum on the hydraulic system.Show/hide table
Illustration 2 g03841187 - Disconnect hose assemblies (1). Remove clamp (2).
- Remove bolts (6) and remove cap (7).
Note: Note the shims and inserts for installation purposes.
- Attach a suitable lifting device to blade lift cylinder (5). The weight of blade lift cylinder (5) is approximately
102 kg (225 lb) . - Remove bolts (3) and remove blade lift cylinder (5).
- Remove cap assemblies (4) from blade lift cylinder (5).
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Illustration 3 g00931717 - Remove seal (8) from cap assembly (4). Remove bearing (9) from cap assembly (4).
- Repeat Step 8 for the remaining cap assembly.
Disassembly and Assembly Information
| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| B | 127-4904 | Repair Stand | 1 |
| C | 195-4609 | Seal Pick | 1 |
| D | 7M-7456 | Bearing Mount Compound | 1 |
| E | 1P-0808 | Multipurpose Grease | 1 |
| F | 9U-7868 | Spanner Wrench | 1 |
| 127-8064 | Adjustable Plate | 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. |
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| Illustration 4 | g00931771 |
(1) Torque for bolt ...
(1) Use a 46 mm socket in order to remove the bolt.
(2) Lubricate sealing lips with a thin covering of the lubricant that is being sealed.
(3) Apply Tooling (D) to the seal groove prior to assembling the wiper seal.
(4) Torque for head ...
Note: Lubricate the threads with Tooling (E).
| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A | 311-1362 | Vacuum Cap | 1 |
| G | 183-3424 | Grease Cartridge | 1 |
| H | 1P-0510 | Driver Gp | 1 |
Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts. Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement.
- Use Tooling (H) (not shown) and a suitable press in order to install bearing (9) in cap assembly (4). Use Tooling (H) (not shown) in order to install seal (8) in cap assembly (4).
- Repeat Step 1 for the remaining cap assembly.
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Illustration 7 g00931868 - Install caps (4) on blade lift cylinder (5).
- Attach a suitable lifting device to blade lift cylinder (5). The weight of blade lift cylinder (5) is approximately
102 kg (225 lb) . - Position blade lift cylinder (5) on the machine. Install bolts (4).
- Apply Tooling (G) between inserts (4A) and ball studs (5A). Install cap (7) and install bolts (6).
Note: As required, use shims (6A) in order to allow the socket to move freely around ball stud (5A). Assemble the same quantity of shims (6A) on both sides of ball stud (5A).
- Install clamp (2). Connect hose assemblies (1).
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Illustration 8 g01368952 - Remove Tooling (A).
- Check the hydraulic oil level. Refer to Operation and Maintenance Manual, "Hydraulic System Oil Level - Check" for the correct procedure.
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| Illustration 5 | g03841273 |
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| Illustration 6 | g00931717 |
