SEAL-LIP TYPE 3N4987 - Caterpillar

Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1U-9895 Crossblock 1
1P-0820 Hydraulic Puller 1
126-7181 Sliding Plate 2
3H-0465 Push-Puller Plate 6
2S-4680 Stud 2
3S-6224 Electric Hydraulic Pump Gp 1
2L-4523 Bolt 2
5P-8244 Hard Washer 2
6B-6682 Full Nut 2
2J-3506 Full Nut 2
B 521-4900 Puller As. 1 Start By:
Remove the water pump.
Illustration 1 g03475023
Remove nuts (1) and the studs from cover assembly (2). Remove cover assembly (2).
Illustration 2 g03475339
Remove O-ring seal (3) and O-ring seal (4) from cover assembly (2).
Illustration 3 g06133692
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
Use Tooling (A) to remove impeller (5).
Illustration 4 g06133697
Use Tooling (B) to remove the rotating seal group (6).
Illustration 5 g06133750
Remove bolts (7) and the washers from thrust washer (9).
Remove shaft assembly (8) and thrust washer (9) from pump housing (10).
Illustration 6 g06133752
Remove stationary seal group (11).
Remove plug assembly (12) from pump housing (10).
Illustration 7 g06133753
Remove lip seal (13), ring assembly (14), and the locating pin from pump housing (10).
Illustration 8 g06133754
Remove filters (15) from pump housing (10).Reference: Refer to Reuse and Salvage Guidelines, SEBF8418, "Salvage of Water Pumps in 3500 Series Engines" for reuse and salvage guidelines.