320D2 GC Excavator Machine Systems Track Roller - Remove and Install Caterpillar

Removal Procedure

Note: There is a track guide on each side of the machine. The procedure that follows is for the removal of the track roller with the track guide.

1. Start the engine. Park the machine on a hard, level surface. Stop the engine.

2. Release the tension on the track. Refer to Operation and Maintenance Manual, "Track Adjustment - Adjust".
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   Illustration 1	g01211423

   Note: Adjust the height of Tooling (A) in order to have sufficient clearance for the removal of the track rollers when Tooling (A) is installed under the undercarriage (1) of the machine.

3. Lift the side of the machine. Install Tooling (A) under the undercarriage, as shown.
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   Illustration 2	g00664654

4. Loosen the bolts that hold track guide (2) to the undercarriage.

   Note: Do not remove the bolts at this time.

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   Illustration 3	g00664663

5. Position Tooling (B) and a suitable lifting device under track guide (2), as shown. Remove the bolts that secure the track guide. Remove track guide (2).
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   Illustration 4	g01212141

6. Remove rock guards (3) from the undercarriage, if equipped.
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   Illustration 5	g01212158

7. Loosen the bolts that secure track roller (4) to the undercarriage.

   Note: Do not remove the bolts at this time.

8. Position Tooling (B) and a suitable lifting device under track roller (4), as shown.

9. Remove the bolts that secure track roller (4). The weight of track roller (4) is approximately 40 kg (88 lb). Remove track roller (4).

10. Refer to Undercarriage Reconditioning Bulletin, "Hydraulic Excavator Roller Disassemble and Assembly Procedures" for the disassembly and assembly procedures of the track roller.

Installation Procedure

Note: There is a track guide on each side of the machine. The procedure which follows is for the installation of the track roller with the track guide.

1. Make sure that all the mounting surfaces on the following components are clean and free of debris before the following components are installed:

   • Track Roller

   • Track Guide

   • Rock Guards

   • Frame Rail
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   Illustration 6	g01212158

   Note: Make sure that the fill/drain plug in the track roller is facing toward the outside of the undercarriage.

2. Use Tooling (B) and a suitable lifting device in order to position track roller (4) on the undercarriage. The weight of track roller (4) is approximately 40 kg (88 lb). Install the bolts that hold the track roller in position.
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   Illustration 7	g00664663

3. Use Tooling (B) and a suitable lifting device in order to position track guide (2) on the undercarriage. Install the bolts that secure the guide in position.
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   Illustration 8	g01212141

4. Install rock guards (4), if equipped.

5. Prior to lowering the machine to the ground and tightening the track, make sure that all of the track rollers rotate smoothly by manually turning the track rollers.
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   Illustration 9	g01211423

6. Lift the machine off Tooling (A).

7. Remove Tooling (A) from the machine. Lower undercarriage (1) to the ground.

8. Tighten the tension of the track. Refer to Operation and Maintenance Manual, "Track Adjustment - Adjust".