Removal Procedure
| Required Tools | |||
|---|---|---|---|
| Tool | Part Number | Part Description | Qty |
| A | 8S-7630 | Stand | 2 |
| 8S-7631 | Tube | 2 | |
| 8S-7615 | Pin | 2 | |
| 8S-8048 | Saddle | 2 | |
| B | 9U-6600 | Hand Hydraulic Pump | 1 |
| 6V-3175 | Double Acting Cylinder | 1 | |
| 9U-5344 | Pin Puller Stud | 1 | |
| 4K-0684 | Hard Washer | 1 | |
| 9U-5346 | Fast Runner Nut Assembly | 1 | |
Start By:
- Connect the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".
- Release the pressure in the hydraulic system. Refer to Disassembly and Assembly, "System Pressure - Release".
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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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| NOTICE |
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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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Personal injury can result from hydraulic oil pressure and hot oil. Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system. Make sure all of the attachments have been lowered, oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand. |
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When you are using hydraulic cylinders and puller studs, always ensure that the rated capacity of the puller stud meets or exceeds the rated capacity of the hydraulic cylinder. If the puller stud does not meet or exceed the rated capacity of the hydraulic cylinder, a sudden failure of the puller stud could occur. The sudden failure of the puller stud could result in personal injury or death. |
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- Position the lift arms in position on Tooling (A) , as shown. Position suitable cribbing under the bucket, as shown.
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| Illustration 1 | g00350673 |
- Remove nuts (1) and front guard (2) .
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| Illustration 2 | g00350674 |
- Disconnect hose assemblies (3) .
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| Illustration 3 | g00350675 |
- Use two people in order to remove nuts (5) and front fender (4) . The weight of front fender (4) is approximately 27 kg (60 lb).
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| Illustration 4 | g01202057 |
- Attach a suitable lifting device to lift cylinder (6) , as shown. The weight of lift cylinder (6) is approximately 250 kg (550 lb).
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| Illustration 5 | g00350677 |
- Remove bolt (7) , the washer, and the spacer from pin assembly (8) .
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| Illustration 6 | g00350678 |
- Remove pin assembly (8) .
- Remove grease fitting (11) from pin assembly (10) .
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| Illustration 7 | g00350679 |
- Remove bolt (9) , the washer, and the spacer from pin assembly (10) .
- Use Tooling (B) in order to remove pin assembly (10) .
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| Illustration 8 | g00350680 |
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| Illustration 9 | g01206488 |
- Use the suitable lifting device in order to remove lift cylinder (6) .
Disassembly and Assembly Information
| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| C | 127-4904 | Repair Stand | 1 |
| D | 7M-7456 | Bearing Mount Compound | 1 |
| E | 1P-1839 | Bearing Puller Adapter | 1 |
| 9S-5564 | Pin Puller Sleeve As | 1 | |
| 165-3790 | Puller Stud | 1 | |
| 5H-9817 | Hydraulic Cylinder Gp | 1 | |
| 9U-6832 | Nut | 1 | |
| 6K-0684 | Washer | 1 | |
| 350-7768 | Electric Hydraulic Pump Gp (115V) | 1 | |
| 350-7769 | Electric Hydraulic Pump Gp (230V) | 1 | |
| F | 1P-0808 | Multipurpose Grease | 1 |
| G | 1P-0520 | Driver Gp | 1 |
| J | 195-4609 | Seal Pick | 1 |
| L | FT-3190 | Seal Compression Tool | 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. |
|
|
When you are using hydraulic cylinders and puller studs, always ensure that the rated capacity of the puller stud meets or exceeds the rated capacity of the hydraulic cylinder. If the puller stud does not meet or exceed the rated capacity of the hydraulic cylinder, a sudden failure of the puller stud could occur. The sudden failure of the puller stud could result in personal injury or death. |
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| Illustration 10 | g02852636 |
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| Illustration 11 | g02852622 |
(1) Lubricate the threads of the nut with lubricant that is being sealed. Torque for the nut to 4500 ± 450 N·m (3320 ± 330 lb ft).
(2) (3) Orientate the seal assembly gap and the wear ring gap 45 degrees to 90 degrees away from each other.
(4) Torque for the bolts ... 1050 ± 150 N·m (775 ± 110 lb ft)
(5) Install the sleeve bearing to Depth of 8.5 ± 0.5 mm (0.33 ± 0.020 inch).
(6) Lubricate the sealing lip of the buffer seal with lubricant that is being sealed.
(7) Lubricate the sealing lip of the U-cup seal with lubricant that is being sealed.
(8) Apply Tooling (D) to the seal groove prior to assembly of the wiper seal. Lubricate the sealing lip of the wiper seal with lubricant that is being sealed.
Installation Procedure
| Required Tools | |||
|---|---|---|---|
| Tool | Part Number | Part Description | Qty |
| A | 8S-7630 | Stand | 2 |
| 8S-7631 | Tube | 2 | |
| 8S-7615 | Pin | 2 | |
| 8S-8048 | Saddle | 2 | |
| K | 5P-0960 | Grease Cartridge | 1 |
Note: Lubricate the bores and the pins with Tooling (K) prior to installation.
- Use a suitable lifting device in order to position lift cylinder (6) . The weight of lift cylinder (6) is approximately 250 kg (550 lb).
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| Illustration 12 | g00952744 |
- Install pin assembly (10) .
- Install the washer, the spacer, and bolt (9) .
- Install grease fitting (11) .
- Install pin assembly (8) .
- Install the washer, the spacer, and bolt (7) .
- Use two people in order to install front fender (4) and nuts (5) . The weight of front fender (4) is approximately 27 kg (60 lb).
| | |
| Illustration 13 | g01202057 |
- Connect hose assemblies (3) .
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| Illustration 14 | g00350675 |
- Install front guard (2) and nuts (1) .
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| Illustration 15 | g00350674 |
- Fill the pin bores of the lift cylinder with Tooling (K) .
- Raise the lift arms in order to remove Tooling (A) .
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| Illustration 16 | g00350673 |
End By: Separate the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".