ENGINE AR-PRIMARY 4786560 - Caterpillar

Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 8B-7548 Push-Puller Tool 1
8H-0684 Ratchet Wrench 1
8H-0663 Bearing Puller Gp 1
8B-7560 Step Plate 1
- Bolt
3/8 - 16 by 2 3/4 inch 1
B 136-1452 Retaining Ring Pliers As 1
C 1P-0510 Driver Gp 1
D 8B-7554 Bearing Cup Puller Gp 1 Start By:
Remove the water pump.
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.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01936708
Remove cover (1) and the gasket from housing (2).
Illustration 2 g01936711
Use Tooling (D) to remove impeller (3) from shaft (4).
Illustration 3 g01936794
Remove seal assembly (5) from shaft (4).
Illustration 4 g01936795
Turn over the water pump and remove bolt (6).
Remove O-ring seal (7) from the housing.
Illustration 5 g01936797
Use Tooling (A) to remove gear (8) and bearing (9) from the water pump.
Remove bearing (9) from gear (8).
Illustration 6 g01936898
Use Tooling (B) to remove retaining ring (10).
Use a suitable press to remove bearing (11) and shaft (4) as a unit.
Use Tooling (A) and a suitable press in order to remove bearing (11) from shaft (4).
Illustration 7 g01936899
Use Tooling (C) to remove lip seal (12).