PISTON 7J6469 - Caterpillar

Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 5F-7465 Puller 1
4B-3903 Bolt 2
9M-1974 Hard Washer 2
5P-8245 Hard Washer 2
1P-0458 Drive Plate 1 Start By:
Remove the auxiliary water pump. Refer to Disassembly and Assembly, "Auxiliary Water Pump - Remove".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.Dispose of all fluids according to local regulations and mandates.
Illustration 1 g00592354
Remove O-ring seals (3) and (4).
Remove the bolts and gear (2) from shaft (1).
Illustration 2 g00592355
Remove the bolts and adapter (5) from the housing. Remove the O-ring seal from adapter (5).
Illustration 3 g01252413
Use Tooling (A) to remove impeller (6) from the shaft.
Illustration 4 g01252415
Personal injury can result from parts and/or covers under spring pressure.Spring force will be released when covers are removed.Be prepared to hold spring loaded covers as the bolts are loosened.
Remove spring (8) from carbon seal assembly (9). Remove carbon seal assembly (9) from shaft (7). Note: The rubber ring and ceramic seal (10) will be removed in Step 8.
Illustration 5 g01252418
Remove the bolts that hold retaining washers (11) on the housing. Remove shaft (1) and retaining washers (11).
Illustration 6 g01252420
Remove the bolts that hold the shims and retaining washers (12) on the housing. Remove shaft (7), the shims, and retaining washers (12).
Remove the rubber ring and the ceramic seal from the housing. Refer to Illustration 4.
Illustration 7 g01252423
Remove lip seal (13) from the housing.
Illustration 8 g01252424
Remove bearing (14).