325F Excavator Machine Systems Stick Bearings and Seals - Install Caterpillar

Installation Procedure

1. Make sure that the bores for the bearings are free of paint and grease prior to the installation of the bearings. Coat the bearings and the bearing bores with Tooling (B) prior to the installation of the bearings in the bores. Bearings must be installed with the identification numbers toward the outside of the stick.

   Note: Make sure that the bearings are installed in the bore so that the identification numbers of the bearings are facing outward.

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   Illustration 1	g00687562
   (S) Stick (T) Sleeve Bearing

2. Lower the temperature of the sleeve bearing to −40 °C (−40 °F). Use Tooling (A) to install the sleeve bearing in the bore for the stick to bucket pin. Install the sleeve bearing until Dimension (X) is 9.5 ± 0.8 mm (0.37 ± 0.03 inch).
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   Illustration 2	g00604131

3. Use Tooling (A) to install lip seal (2) in the bore for the stick to bucket pin. Install the lip seal with the sealing lip toward the outside of the stick. Install the lip seal until the lip seal makes contact with the sleeve bearing.

4. Repeat Steps 2 and 3 to install the sleeve bearing and the lip seal on the opposite side of the stick.
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   Illustration 3	g00687582
   (S) Stick (U) Sleeve Bearing

5. Lower the temperature of the sleeve bearing to −40 °C (−40 °F). Use Tooling (A) to install the sleeve bearing in the bore for the stick to boom pin. Install the sleeve bearing until Dimension (Y) is 9.5 ± 0.8 mm (0.37 ± 0.03 inch).
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   Illustration 4	g00592359

6. Use Tooling (A) to install lip seal (1) in the bore for the stick to boom pin. Install the lip seal with the sealing lip toward the outside of the stick. Install the lip seal until the lip seal makes contact with the sleeve bearing.

7. Repeat Steps 5 and 6 to install the sleeve bearing and the lip seal on the opposite side of the stick.

8. Apply a thin coat of Tooling (B) on the sleeve bearings. Apply a thin coat of Tooling (B) on the lips of the lip seals (1) and (2).

End By:

1. Install the stick.