G3508B, G3512B, G3512B, G3516B and G3520B Petroleum Engines Caterpillar

Removal Procedure

Start By:

1. Remove the flywheel. Refer to Disassembly and Assembly, "Flywheel - Remove and Install".

Note: The crankshaft rear seal and the wear sleeve must be replaced at the same time. Once the crankshaft rear seal and the wear sleeve are separated, these components cannot be used again.

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Illustration 1	g01136982

1. Use Tooling (A) or a punch and hammer in order to puncture three or more holes in crankshaft rear seal (1).

2. Use Tooling (A) to remove crankshaft rear seal (1).
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   Illustration 2	g01136984

3. Insert Tooling (B) between the flywheel housing and wear sleeve (2).
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   NOTICE
   The use of excessive force on the sleeve distorter can cause the distorter adapter to crack the housing. To help avoid damage to the engine, do not use excessive force to remove the wear sleeve.

4. Insert Tooling (C) between Tooling (B) and wear sleeve (2). Carefully turn Tooling (C) until the edge of the tool causes a crease in wear sleeve (2).

   Repeat this procedure several times around the wear sleeve until the wear sleeve can be removed by hand.