325, 325B and 325L Excavators Caterpillar

Installation Procedure For The Travel Motor On CIPI Undercarriage Arrangements which Are Based On 325 Track Type Excavators

1. Thoroughly clean the mating surfaces of the travel motor and the final drive.

2. Check the condition of the O-ring seal that is used between the travel motor and the final drive. If the O-ring seal is damaged, use a new part for replacement.

Show/hide table



Illustration 1	g00902743

3. Install the O-ring seal on the body of travel motor (4). Apply a thin coat of clean hydraulic oil on the O-ring seal.

4. Fasten a sling and a hoist to travel motor (4), as shown. Position the travel motor on the two guide bolts. Use two persons to slide travel motor (6) into position in the final drive. Install the four lower socket head bolts (5) that hold the travel motor. Remove the guide bolts from the upper mounting bolt holes, and install two upper socket head bolts (5) evenly. Tighten the six socket head bolts (5) evenly.

5. Check the condition of the O-ring seal that is used in the ends of hose assemblies (4) and (8), and two pipes (7). If the O-ring seal is damaged, use a new part for replacement.

6. Remove the plugs from the ends of hose assemblies (4) and (8). Install the O-ring seals in the hose assemblies and pipes. Connect hose assemblies (4) and (8), and two pipes (7) to the travel motor in the component's original locations.

Show/hide table



Illustration 2	g00902742

7. Install two clamps (3) that hold the pipes for the travel brake valve.

Show/hide table



Illustration 3	g00902739

8. Install three cover assemblies (1) on the right rear of the undercarriage frame assembly.

9. Fill the final drive with hydraulic oil to the correct level. Refer to Operation and Maintenance Manual, "Lubricant Viscosities" for the proper oil viscosity and Operation and Maintenance Manual, "Refill Capacities" for the correct amount. Refer to Operation and Maintenance Manual, "Final Drive Oil Level - Check" for the correct filling procedure.

End By: Install the travel brake valve. Refer to Disassembly and Assembly, "Travel Brake Valve - Install" in this manual.

Installation Procedure For The Travel Motor On CIPI Undercarriage Arrangements which Are Based On 325B Track Type Excavators

1. Thoroughly clean the mating surfaces of the travel motor and the final drive.

Show/hide table



Illustration 4	g00651795

2. Install new O-ring seal (5). Apply clean hydraulic oil on the O-ring seal.

Show/hide table



Illustration 5	g00707267

3. Fasten a lifting strap and a hoist to travel motor (4), as shown.

Show/hide table



Illustration 6	g00707280

4. Carefully install travel motor (4) on Tooling (A). Slide the travel motor into the final drive.

5. Install one of the three bolts (3) that secures the travel motor to the final drive.

6. Remove Tooling (A) .

Show/hide table



Illustration 7	g00707275
Typical Example

7. Install two remaining bolts (2) .

8. Remove the plugs from the ends of hose assemblies (1) and (3) .

9. Connect hose assemblies (1) and (3) to the travel motor. Tighten the two hose assemblies to a torque of 80 ± 7 N·m (60 ± 5 lb ft).

10. Fill the final drive with hydraulic oil to the correct level. Refer to Operation and Maintenance Manual, "Lubricant Viscosities" for the proper oil viscosity and Operation and Maintenance Manual, "Refill Capacities" for the correct amount. Refer to Operation and Maintenance Manual, "Final Drive Oil Level - Check" for the correct filling procedure.

End By: Install the travel brake valve. Refer to Disassembly and Assembly, "Travel Brake Valve - Install" in this manual.

Installation Procedure For The Travel Motor On CIPI Undercarriage Arrangements which Are Based On 325C Track Type Excavators

Show/hide table

NOTICE
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.

1. Thoroughly clean the mating surfaces of the travel motor and the final drive.

Show/hide table



Illustration 8	g00878123

2. Install new O-ring seal (5). Apply clean hydraulic oil on the O-ring seal.

Show/hide table



Illustration 9	g00707267

3. Fasten a lifting strap and a suitable lifting device to travel motor (4), as shown.

4. The weight of the travel motor is approximately 57 kg (125 lb).

Show/hide table



Illustration 10	g00878121

5. Carefully install travel motor (4) on Tooling (A). Slide the travel motor into the final drive.

6. Install one of three bolts (5) that secures the travel motor to the final drive.

7. Remove Tooling (A) .

Show/hide table



Illustration 11	g00707275
Typical example

8. Install two remaining bolts (2) .

9. Connect hose assembly (3). Connect hose assembly (1) .

10. Fill the final drive with oil.

    Reference: Refer to Operation and Maintenance Manual, "Lubricant Viscosities" for the proper oil viscosity.

    Reference: Refer to Operation and Maintenance Manual, "Final Drive Oil Level - Check" for the correct filling procedure.

11. Install high efficiency filters in place of the pilot filter, the case drain filter, and the return filter.

    Note: High efficiency filters should not be run for more than 250 hours before you change back to the standard filters.

12. Obtain a hydraulic oil sample from the main S·O·S port.

13. If the S·O·S sample exceeds ISO 18/15, flush the hydraulic system.

    Reference: Refer to Contamination Control Guidelines, SEBF8436, "Hydraulic System Flushing Procedure for 322C Hydraulic Excavators" for further information.

End By: Install the travel brake valve. Refer to Disassembly and Assembly, "Travel Brake Valve - Install" in this manual.