3054 Engine for Caterpillar Built Machines Caterpillar

Disassembly Procedure

Start By:

1. Remove the rocker shaft assembly. Refer to Disassembly and Assembly, "Rocker Shaft and Pushrod - Remove".

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Illustration 1	g00550061

1. Use a screwdriver or a similar tool to remove retaining ring (1) from both ends of the rocker shaft assembly.

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Illustration 2	g00550062
(1) Retaining ring (2) Washer on the end of the rocker shaft (3) Rocker arm assembly (4) Rocker shaft bracket (5) Spring on the rocker shaft (6) Washer (7) Rocker shaft (8) Bolt (9) Oil supply connection (10) Rocker arm bushing

2. Remove the rocker arms and the rocker shaft brackets from the rocker shaft assembly.

   Note: Place an identification mark on each of the components for the proper order for installation.

3. Check the clearance between rocker arm assembly (3) and rocker shaft (7). Replace rocker arm bushing (10) if the clearance is larger than 0.13 mm (0.005 inch). Use Tool (A) and a suitable press in order to remove rocker arm bushing (10) from rocker arm assembly (3), if necessary.

4. Remove rocker shaft bracket (4) from rocker shaft (7) .

5. Remove springs (5), washer (6), bolt (8) and oil supply connection (9) from rocker shaft (7) .