325, 325B and 325L Excavators Caterpillar

Installation Procedure For The Swivel On CIPI Undercarriage Arrangements Which Are Based On 325 Track Type Excavators

1. Make sure that the threaded holes in the undercarriage frame assembly for mounting the swivel joint are clean and free of dirt and debris.

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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.

2. Apply a bead of 3S-6252 Sealant to the surface of the undercarriage frame assembly prior to installing the swivel joint.

3. Fasten Tool (A) and a hoist to the swivel joint. The weight of the swivel joint is approximately 43 kg (95 lb). Place the swivel joint in the swivel joint's original position in the undercarriage frame assembly. Make sure that the identification mark on the bottom face of the swivel joint is facing toward the front of the machine.

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Illustration 1	g00904524
This view is from the underside of the machine.

4. Install six bolts (8) in the bottom of the swivel joint.

5. Remove the tape from the ports in the bottom of the swivel joint.

6. Remove the plugs from six hose assemblies (7) and one hose assembly (9). Check the condition of the O-ring seals that are used in the ends of seven hose assemblies prior to installation. If the O-ring seals are damaged, use new parts for replacement.

7. Connect six hose assemblies (7) and one hose assembly (9) in the hose assembly's original location on the bottom of the swivel joint. Tighten hose assembly (9) to a torque of 150 ± 15 N·m (110 ± 11 lb ft).

8. Remove the hoist and Tool (A) from the top of the swivel joint. Reinstall the cover bolt in the top of the swivel joint.

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Illustration 2	g00904522

9. Install setting plate (3). Install two bolts (2) and the washers that secure the setting plate.

10. Remove the plugs from the ends of six hose assemblies (1). Check the condition of the O-ring seals that are used in the ends of six hose assemblies (1) prior to installation. If the O-ring seals are damaged, use new parts for replacement.

11. Connect six hose assemblies (1) in the hose assembly's original location on the swivel joint.

12. Fill the hydraulic oil tank with oil to the correct level. Refer to Operation and Maintenance Manual, "Lubricant Viscosities" for the proper oil viscosity.

Installation Procedure For The Swivel On CIPI Undercarriage Arrangements Which Are Based On 325B Track Type Excavators

1. Make sure that the threaded holes in the undercarriage frame assembly for mounting the swivel joint are clean and free of dirt and debris.

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.

2. Apply a bead of 1U-8846 Liquid Gasket to the surface of the undercarriage frame assembly prior to installing the swivel joint.

3. Fasten Tool (A) and a hoist to the swivel joint. The weight of the swivel joint is 43 kg (95 lb). Place the swivel joint in the swivel joint's original position in the undercarriage frame assembly. Make sure that the identification mark on the bottom face of the swivel joint is facing toward the front of the machine.

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Illustration 3	g00513219
This view is from the underside of the machine.

4. Apply 9S-3263 Thread Lock Compound on the threads of six bolts (9). Install six bolts (9) in the bottom of the swivel joint.

5. Remove the tape from the ports in the bottom of the swivel joint.

6. Install tee fitting (8) in the swivel group. Tighten the tee fitting to a torque of 40 ± 5 N·m (30 ± 4 lb ft). Make sure that the tee fitting is oriented properly.

7. Remove the plugs from eight hose assemblies (7). Check the condition of the O-ring seals that are used in the ends of eight hose assemblies (7) prior to installation. If the O-ring seals are damaged, use new parts for replacement.

8. Connect eight hose assemblies (7) in the hose assembly's original location on the bottom of the swivel joint.

   1. Tighten the two hose assemblies that connect to tee fitting (8) to a torque of 40 ± 5 N·m (30 ± 4 lb ft).

   2. Tighten the two hose assemblies that connect to the center tee fitting to a torque of 80 ± 7 N·m (60 ± 5 lb ft).

   3. Tighten the four hose assemblies that connect to the bottom of the swivel group to a torque of 80 ± 7 N·m (60 ± 5 lb ft).

9. Remove the hoist and Tool (A) from the top of the swivel joint. Reinstall the cover bolt in the top of the swivel joint.

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Illustration 4	g00513210

10. Install setting plate (3). Install two bolts (2) and the washers that secure the setting plate.

11. Remove the plugs from the ends of seven hose assemblies (1). Check the condition of the O-ring seals that are used in the ends of seven hose assemblies (1) prior to installation. If the O-ring seals are damaged, use new parts for replacement.

12. Connect seven hose assemblies (1) in the hose assembly's original location on the swivel joint.

    1. Tighten the mounting bolts for the four hose assemblies to a torque of 190 ± 20 N·m (140 ± 15 lb ft).

    2. Tighten the one hose assembly that connects at the bottom of the swivel joint to a torque of 40 ± 5 N·m (30 ± 4 lb ft).

    3. Tighten the two hose assemblies that connect to the top of the swivel joint to a torque of 80 ± 7 N·m (60 ± 5 lb ft).

13. Fill the hydraulic oil tank with oil to the correct level. Refer to Operation and Maintenance Manual, "Lubricant Viscosities" for the proper oil viscosity.

14. Start the engine, and check the swivel for leaks. Shut off the engine.

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Illustration 5	g00513213
This view is from the underside of the machine.

15. Place two cover assemblies (6) in the cover assembly's original position on the underside of the undercarriage frame assembly. Install bolts (5) .

Installation Procedure For The Swivel On CIPI Undercarriage Arrangements Which Are Based On 325C Track Type Excavators

Note: O-rings, gaskets and seals should always be replaced. A used O-ring may not have the same sealing properties as a new O-ring. A reconditioning procedure should not be degraded because of a low cost component such as an O-ring or a gasket. Use 1U-6396 O-Ring Assembly Compound during the assembly procedure.

Note: Make sure that the threaded holes in the undercarriage frame assembly for mounting the swivel joint are clean and free of dirt and debris.

1. Apply a bead of 1U-8846 Liquid Gasket to the surface of the undercarriage frame assembly prior to the installation of the swivel joint.

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Illustration 6	g00687476

2. Fasten Tooling (B) and a hoist to the swivel. Install the swivel on the machine. The weight of the swivel is approximately 43 kg (95 lb).

3. Make sure that the identification mark on the bottom face of the swivel faces toward the front of the machine.

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Illustration 7	g00690963

4. Install the cap to the hydraulic tank. Attach Tooling (A) to the hydraulic tank.

   Note: Hook up the air to Tooling (A) in order to create a vacuum in the hydraulic system. This will minimize the leakage from the hose assemblies.

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Illustration 8	g00687510

5. Apply 9S-3263 Thread Lock Compound on the threads of bolts (10). Install the washers and bolts (10) .

6. Connect hose assemblies (11) to the tee. Tighten hoses (11) to a torque of 80 ± 7 N·m (59 ± 5 lb ft).

7. Install tee fitting (13) in the swivel joint. Tighten the tee to a torque of 40 ± 5 N·m (30 ± 4 lb ft).

8. Connect hose assemblies (12) to tee (13). Tighten hoses (12) and tee (13) to a torque of 40 ± 5 N·m (30 ± 4 lb ft).

9. Install the split flanges, the washers, and the bolts in order to connect hose assemblies (9) .

10. Remove Tooling (B) from the swivel.

11. Install the rubber boot on the swivel.

12. Install the retainer. Install the washers and bolts (5). Tighten the bolts to a torque of 37 ± 4 N·m (27 ± 3 lb ft).

13. Install hose clamp (6). Tighten the hose clamp to a torque of 5.4 ± 0.5 N·m (47.71 ± 4.34 lb in).

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Illustration 9	g00687463

14. Install support (4). Install the bolts that secure the support to the swivel.

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Illustration 10	g00687443

15. Connect hose assemblies (3) .

16. Install the split flanges, the washers,and bolts (2) in order to connect the hose assemblies. Tighten the bolts to a torque of 190 ± 20 N·m (140 ± 15 lb ft).

17. Connect hose assemblies (1) .

18. 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.

19. Remove Tooling (A) from the hydraulic tank.

20. Fill the hydraulic oil tank with clean hydraulic oil to the correct level.

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

    Reference: Refer to Operation and Maintenance Manual, "Hydraulic System Oil Level - Check" for the correct filling procedures.

21. Install the cap to the hydraulic tank.

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

    Reference: Refer to Operation and Maintenance Manual, "Sampling Interval and Location of Sampling Valve" for the correct location.

23. 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.