C-15, C-16 and C-18 Truck Engines Caterpillar

Removal Procedure

Start By:

1. Remove the front housing. Refer to Disassembly and Assembly, "Housing (Front) - Remove".

Note: Be sure to mark the orientation of each of the gears for installation purposes.

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Illustration 1	g01010064

1. Remove bolts (1) and thrust plate (2) .

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Illustration 2	g00576209

2. Remove seal assembly (3) and adapter (4) .

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Illustration 3	g00576240

3. Remove O-ring seals (5) and (6) from seal assembly (3) .

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Illustration 4	g01010047

4. Remove bolts (9), plate (10), and adjustable idler gear (8) .

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Illustration 5	g01010027

5. Check the condition of bearing (7) in adjustable idler gear (8). If bearing (7) is worn or damaged, use a new part for replacement. Use Tooling (A) to replace bearing (7) in adjustable idler gear (8) .

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Illustration 6	g00576203

6. Remove bolts (12), plate (13), and idler gear (11) .

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Illustration 7	g00576204

7. Check the condition of bearing (14) in idler gear (11). If bearing (14) is worn or damaged, use a new part for replacement. Use Tooling (A) to replace bearing (14) in idler gear (11) .

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Illustration 8	g01010048

8. Remove bolts (17), plate (18), and cluster gear (16) .

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Illustration 9	g01010028

9. Check the condition of bearing (15) in cluster gear (16). If bearing (15) is worn or damaged, use a new part for replacement. Use Tooling (A) to replace bearing (15) in cluster gear (16) .

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Illustration 10	g00576208

Note: Shaft assemblies (19) and (20) must be removed in order to remove plate (23) .

10. Check the condition of shaft assembly (19). If the bearing diameter of the shaft is worn or damaged, remove the nuts and the bolt and replace shaft assembly (19) with a new part.

11. Check the condition of shaft assembly (20). If the bearing diameter of the shaft is worn or damaged, remove the nuts and the bolt and replace shaft assembly (20) with a new part.

12. Check the condition of shaft (21). If the bearing diameter of the shaft is worn or damaged, remove bolts (22) and replace shaft (21) with a new part.

13. Remove bolts (24) that hold plate (23) to the cylinder block. Remove plate (23) .

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Illustration 11	g00618962

14. Remove gasket (25) from the cylinder block.