VALVE GP-RELIEF 4I7788 - 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 water pump. Refer to Disassembly and Assembly, "Water Pump (Separate Circuit Aftercooler) - Remove".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01056506
Remove O-ring seals (4) and (5).
Remove bolts (2) and gear (3) from shaft (1).
Illustration 2 g01056534
Remove adapter (6) and adapter (7) from the housing. Remove the O-ring seal from adapter (7).
Illustration 3 g01056544
Remove bolt (8) that holds impeller (9) on the shaft.
Illustration 4 g00592357
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.
Use Tooling (A) in order to remove impeller (9) from the shaft.
Illustration 5 g01056561
Remove spring (11) from carbon seal assembly (12). Remove carbon seal assembly (12) from shaft (10).
Illustration 6 g01056615
Remove bolts (13) that hold retaining washers (14) on the housing. Remove shaft (1) and washers (14).
Illustration 7 g01056621
Remove bolts (15) that hold the shims and retaining washers (16) on the housing. Remove shaft (10), the shims, and washers (16).
Illustration 8 g01056633
Remove lip seal (17) from the housing.
Illustration 9 g01056641
Remove bearing (18).