Removal Procedure
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Table 1
| Required Tools |
| Tool |
Part Number |
Part Description |
Qty |
| A |
172-3928 |
Transmission Support |
1 |
| B |
176-5528 |
Bracket |
1 |
| C |
138-7573 |
Link Bracket |
2 |
| 1U-9202 |
Lever Puller Hoist |
1 |
Start By:
- Articulate the machine fully to the right side and chock all of the wheels. Refer to Disassembly and Assembly, "Wheel Chock (Front and Rear) - Remove and Install".
- Disconnect the rod end of the left side steering cylinder and retract the cylinder. Refer to Disassembly and Assembly, "Steering Cylinder - Remove".
- Remove the front section of the auxiliary drive shaft. Refer to Disassembly and Assembly, "Auxilliary Drive Shaft - Remove".
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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 Tools and Shop Products Guide" 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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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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Note: Install caps and plugs on all openings in order to prevent dirt or debris from entering the system. Cleanliness is an important factor. Before the removal procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal components.
Note: For easier assembly, mark all hose assemblies, tube assemblies, wire harnesses and cables for identification purposes.
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| Illustration 1 | g00607691 |
- Remove hose assemblies (2) .
- Disconnect hose assembly (1) .
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| Illustration 2 | g00607693 |
- Disconnect hose assemblies (3) .
- Disconnect hose assemblies (4) .
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| Illustration 3 | g00607086 |
- Disconnect harness assembly (5) at the electrical connection.
- Remove bolt (6) and the washer in order to disconnect the harness assembly from the transmission.
- Disconnect hose assemblies (7), (8), and (9) from the transmission.
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| Illustration 4 | g00607695 |
- Remove bolts (14) and the washers in order to remove manifold (13) and the O-ring seal. Remove manifold (13) and the O-ring seal.
- Remove bolts (11) and the washers in order to remove tube assembly (12) and the O-ring seal. Remove tube assembly (12) and the O-ring seal.
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| Illustration 5 | g00607696 |
- Remove two of the six nuts (15) and the washers from the bottom of the transmission.
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| Illustration 6 | g00607698 |
- Install Tooling (A), as shown.
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| Illustration 7 | g00607699 |
- Remove bolts (16) and the washers in order to disconnect the bracket that fastens the pilot lines to the machine.
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| Illustration 8 | g00607701 |
- Disconnect hose assembly (17) and hose assembly (18) from the transmission.
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| Illustration 9 | g00607703 |
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| Illustration 10 | g00607705 |
- Remove two of the nine bolts (19) and the washers.
- Install the guide bolts of Tooling (A).
Note: Two of the four bolts of Tooling (A) must be modified in order to be used as a guide bolt. Position Tooling (A) in a suitable vise. Remove the head of the bolt in order to use Tooling (A) as a guide bolt.
Note: Do not remove the heads of two of the bolts from Tooling (A) .
- Repeat Step 14 and Step 15 for the remaining side.
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| Illustration 11 | g00607707 |
- Install Tooling (B) on the transmission, as shown.
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| Illustration 12 | g00607708 |
- Remove the remaining five bolts (19), four nuts, and the washers.
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| Illustration 13 | g01025115 |
- Install Tooling (C) in order to slide the transmission toward the front of the machine.
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| Illustration 14 | g00607711 |
- Use a suitable lift truck in order to remove the transmission. Remove the transmission and the O-ring seal. The weight of the transmission is approximately 1300 kg (2820 lb).
