315B Excavator Machine Systems Caterpillar

Assembly Procedure

1. Thoroughly clean all parts of the track carrier roller prior to assembly.

Note: Do not reuse bearings (12) and (13). Use new parts for replacement.

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Illustration 1	g00367312

Note: Bearing (13) is a straight bearing.

2. Lower the temperature of bearing (13). Use Tooling (A) and a press to install bearing (13) in the inside bore of the carrier roller. Install the bearing until the bearing is even with the shaft counterbore in the carrier roller.

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Illustration 2	g00367133

Note: Bearing (12) has a flange.

3. Lower the temperature of bearing (12). Use Tooling (A) and a press to install bearing (12) in the outside bore of the carrier roller. The outside bore can be identified by three threaded holes (H) in the track carrier roller. Install the bearing until the flange on the bearing makes contact with the counterbore in the track carrier roller.

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Illustration 3	g00367112

4. Replace the O-ring seal that is used in collar (11) with a new O-ring seal. Install the O-ring seal in the collar. Put clean oil on the O-ring seal.

5. Use a press to install collar (11) on shaft (8). Install collar (11) until dimension (X) is 107 ± .2 mm (4.21 ± 0.01 inch).

6. Use the following procedure to determine shaft end play.

   Note: Do not install the Duo-Cone seal kits in the track carrier roller or collar (11) at this time.

   1. Install shaft assembly (8) in the track carrier roller without Duo-Cone seal kits.

   2. Install retainer (7) and socket head bolts (5) and (6) on the end of shaft assembly (8) .

   3. Use Tooling (C) to measure the end play of shaft assembly (8). The end play of the shaft assembly must be 0.20 mm (.008 inch) to 0.5 mm (0.02 inch). Bearing (12) controls the amount of shaft end play.

   4. Disassemble the track carrier roller, but do not remove collar (11) from shaft (8) .

Note: Refer to Disassembly and Assembly Manual, "Duo-Cone Conventional Seals - Install" for more information.

Note: The rubber seal and all surfaces that make contact with the seals must be clean and dry. After installation of the seals, apply clean SAE 30 oil on the contact surfaces of the metal seals.

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Illustration 4	g00367057

7. Install Duo-Cone seal kit (10) in collar (11) with Tooling (B) .

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Illustration 5	g00365965

8. Install Duo-Cone seal kit (9) in the track carrier roller on the side without three threaded holes with Tooling (B) .

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Illustration 6	g00365960

9. Carefully install shaft assembly (8) in the track carrier roller. Install retainer (7) and socket head bolts (5) and (6) .

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Illustration 7	g00365954

10. Replace O-ring seal (4) that is used on cover (3) with a new O-ring seal. Put clean oil on O-ring seal (4). Install the O-ring seal on cover (3) .

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Illustration 8	g00365386

11. Install cover (3) on the track carrier roller and three socket head bolts (1) .

12. Put the track carrier roller in a vertical position. Fill the track carrier roller with 85 ± 8 mL (2.9 ± .27 oz) of clean SAE 30 oil. Apply 5P-3413 Pipe Sealant on the threads of plug (2). Install plug (2) .

End By: Install the track carrier rollers. Refer to Disassembly and Assembly, "Track Carrier Roller - Install" in this manual.