Removal Procedure
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Table 1
| Required Tools |
| Tool |
Part Number |
Part Description |
Qty |
| A |
138-7573 |
Link Bracket |
1 |
| 8T-4648 |
Bolt |
1 |
| B |
1P-0510 |
Driver Gp |
1 |
| C |
5P-5247 |
Hydraulic Puller |
1 |
| 1U-5230 |
Hand Hydraulic Pump |
1 |
| D |
FT-2802 |
Puller Plate |
1 |
| 1U-7552 |
Hydraulic Cylinder Gp |
1 |
| 3S-6224 |
Electric Hydraulic Pump Gp |
1 |
| E |
140-7742 |
Sleeve |
1 |
Start By:
- Connect the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".
- Release the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release".
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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, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates. |
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Note: Put identification marks on all hoses, on all hose assemblies, on all wires, and on all tube assemblies for installation purposes. Plug all hose assemblies and all tube assemblies. This helps to prevent fluid loss, and this helps to keep contaminants from entering the system.
Note: Cleanliness is an important factor. Before you begin the disassembly procedure, the exterior of the components should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism. Precision components can be damaged by contaminants or by dirt. Perform disassembly procedures on a clean work surface. Keep components covered and protected at all times.
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| Illustration 1 | g01166659 |
- Use suitable cribbing in order to support front fender (1) .
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| Illustration 2 | g01166664 |
- Remove bolts (2) . Remove deflector (3) .
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| Illustration 3 | g01166669 |
- Remove bolts (4) . Use two people in order to remove support assembly (5) . The weight of support assembly (5) is approximately 29 kg (65 lb).
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| Illustration 4 | g01166676 |
- Disconnect grease hose assembly (6) . Remove bolt (7) . Disconnect hose assemblies (8) .
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| Illustration 5 | g01166692 |
- Install Tooling (A) .
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| Illustration 6 | g01166699 |
- Remove bolt (9) and the washer.
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| Illustration 7 | g01166704 |
- Use suitable cribbing, Tooling (B) , and Tooling (C) in order to remove pin (10) (not shown).
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| Illustration 8 | g01166707 |
- Remove face seals (11) .
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| Illustration 9 | g01166709 |
- Remove O-ring seals (12) .
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| Illustration 10 | g01166715 |
- Attach a suitable lifting device and Tooling (E) to Tooling (A) and steering cylinder (13) . The weight of steering cylinder (13) is approximately 50 kg (110 lb).
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| Illustration 11 | g01166722 |
- Remove bolt (14) and the washer.
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| Illustration 12 | g01228830 |
Typical Example |
- Place a suitable wedge between Tooling (C) and the frame of the machine in order to align Tooling (C) with pin (15) . Use Tooling (B) and Tooling (C) in order to remove pin (15) .
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| Illustration 13 | g01166730 |
- Remove steering cylinder (13) .
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| Illustration 14 | g01166807 |
- Remove face seals (16) .
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| Illustration 15 | g01166815 |
- Remove O-ring seals (17) .
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| Illustration 16 | g01166821 |
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| Illustration 17 | g01228867 |
Typical Example |
- Place a suitable wedge between Tooling (D) and the frame of the machine in order to align Tooling (D) with bearing (18) . Use Tooling (D) in order to remove bearing (18) .
Disassembly and Assembly Information
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Table 2
| Required Tools |
| Tool |
Part Number |
Part Description |
Qty |
| F |
FT-2802 |
Puller Plate |
1 |
| 9U-6833 |
Nut |
1 |
| 4C-9633 |
Puller Stud |
1 |
| 6V-3160 |
Double Acting Cylinder |
1 |
| 3S-6224 |
Electric Hydraulic Pump Gp |
1 |
| G |
127-4904 |
Repair Stand |
1 |
| H |
7M-7456 |
Bearing Mount Compound |
1 |
| J |
1P-0808 |
Multipurpose Grease |
1 |
| K |
1P-0510 |
Driver Gp |
1 |
| L |
195-4609 |
Seal Pick |
1 |
| M |
9U-7868 |
Spanner Wrench |
1 |
| 127-8064 |
Adapter Plate Gp |
1 |
| N |
FT-2802 |
Puller Plate |
1 |
| 9U-6833 |
Nut |
1 |
| 4C-9633 |
Puller Stud |
1 |
| 6V-3160 |
Double Acting Cylinder |
1 |
| 3S-6224 |
Electric Hydraulic Pump Gp |
1 |
| 9S-8536 |
Sleeve |
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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Note: Cleanliness is an important factor. Before you begin the disassembly procedure, the exterior of the components should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism. Precision components can be damaged by contaminants or by dirt. Perform disassembly procedures on a clean work surface. Keep components covered and protected at all times.
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.
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| Illustration 18 | g01246202 |
(1) Tighten the nut to a torque of 28 ± 5 N·m (21 ± 4 lb ft).
(2) Tighten the bolt to a torque of 1600 ± 200 N·m (1180 ± 150 lb ft). Replace a bolt that has been loosened or removed with a new bolt. Install the bolt with threads that are clean and free of lubricant.
(3) Tighten the locknut to a torque of 2.25 ± 0.25 N·m (20.0 ± 2.2 lb in).
(4) Apply Tooling (J) to the threads and tighten the head to a torque of 600 ± 130 N·m (440 ± 100 lb ft).
(5) Use Tooling (N) in order to remove the bearing. Use Tooling (F) in order to install the bearing.
(6) Lubricate the sealing lip lightly with the lubricant that is being sealed.
(7) Apply Tooling (H) to the wiper seal groove prior to installation.
Installation Procedure
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Table 3
| Required Tools |
| Tool |
Part Number |
Part Description |
Qty |
| A |
138-7573 |
Link Bracket |
1 |
| 8T-4648 |
Bolt |
1 |
| D |
FT-2802 |
Puller Plate |
1 |
| 1U-7552 |
Hydraulic Cylinder Gp |
1 |
| 3S-6224 |
Electric Hydraulic Pump Gp |
1 |
| E |
140-7742 |
Sleeve |
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.
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| Illustration 19 | g01166821 |
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| Illustration 20 | g01228867 |
Typical Example |
- Place a suitable wedge between Tooling (D) and the frame of the machine in order to align Tooling (D) with bearing (18) . Use Tooling (D) in order to install bearing (18) .
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| Illustration 21 | g01166815 |
- Install O-ring seals (17) .
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| Illustration 22 | g01166807 |
- Install face seals (16) .
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| Illustration 23 | g01166715 |
- Attach a suitable lifting device and Tooling (E) to Tooling (A) and steering cylinder (13) . Position steering cylinder (13) . The weight of steering cylinder (13) is approximately 50 kg (110 lb).
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| Illustration 24 | g01166876 |
- Install pin (15) . Install bolt (14) and the washer. Tighten bolt (14) to a torque of 240 ± 40 N·m (177 ± 30 lb ft). Strike the head of pin (15) with a suitable hammer and torque bolt (14) to a torque of 240 ± 40 N·m (177 ± 30 lb ft). Continue this procedure until bolt (14) maintains a torque of 240 ± 40 N·m (177 ± 30 lb ft). Recheck the torque of bolt (14) after the machine has been operated.
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| Illustration 25 | g01166709 |
- Install O-ring seals (12) .
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| Illustration 26 | g01166707 |
- Install face seals (11) .
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| Illustration 27 | g01166699 |
- Install pin (10) . Install bolt (9) and the washer. Tighten bolt (9) to a torque of 240 ± 40 N·m (177 ± 30 lb ft). Strike the head of pin (10) with a suitable hammer and torque bolt (9) to a torque of 240 ± 40 N·m (177 ± 30 lb ft). Continue this procedure until bolt (9) maintains a torque of 240 ± 40 N·m (177 ± 30 lb ft). Recheck the torque of bolt (9) after the machine has been operated.
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| Illustration 28 | g01166692 |
- Remove Tooling (A) .
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| Illustration 29 | g01166676 |
- Connect hose assemblies (8) . Install bolt (7) . Connect grease hose assembly (6) .
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| Illustration 30 | g01166669 |
- Use two people in order to position support assembly (5) . The weight of support assembly (5) is approximately 29 kg (65 lb). Install bolts (4) .
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| Illustration 31 | g01166664 |
- Position deflector (3) . Install bolts (2) .
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| Illustration 32 | g01166659 |
- Remove the suitable cribbing from front fender (1) .
End By:
Separate the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".
