TK741, TK751 and TK752 Track Feller Bunchers Machine Systems Caterpillar

Installation Procedure

1. Lay a new dust seal around the outer race in order to determine the required length. Cut the new seal approximately 1 cm (.4 inch) shorter than the required length. Cut the seal at a 90 degree angle. Use a file to smoothen the cross section cut of the seal.

2. Use Tooling (C) in order to install a new dust seal in the outer race. Be sure to apply adhesive on the 90 degree cross section cut in the seal.

3. Follow the procedure in Steps 1 and 2 in order to install a new dust seal in the inner race.

4. Lubricate the swing gear and bearing with Tooling (D) .

   Note: Clean the mating surface for the swing gear and bearing on the undercarriage frame assembly.

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Illustration 1	g01028803

5. Apply Tooling (E) on the mating surface for the swing gear and bearing of the undercarriage frame assembly. Fasten Tooling (A) and a suitable lifting device to swing gear and bearing (1) , as shown. The weight of the swing gear and bearing is approximately 415 kg (915 lb).

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Illustration 2	g01028863

6. Place the swing gear and bearing in the swing gear and bearing's original position on the undercarriage frame assembly. Make sure that the stamped mark "S" (3) on the inner race is in the position that is shown, relative to the undercarriage frame assembly and the stopper (2) on the outer race.

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Illustration 3	g01028876

7. Apply a thin coat of Tooling (D) on the threads of 38 bolts (4) . Install the spacers and bolts (2) that secure the swing gear and bearing to the undercarriage frame assembly. Use Tooling (B) to tighten the bolts to a torque of 1000 ± 125 N·m (738 ± 92 lb ft).

8. Add approximately 26 kg (57 lb) of Tooling (D) to the swing gear and bearing after the installation.

End By: Install the undercarriage frame assembly. Refer to Disassembly and Assembly, "Undercarriage Frame - Install".