KIT-PUMP 4259029 - Caterpillar

Start By:
Remove the hydraulic fan piston motor.
Illustration 1 g01864093
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.
Remove bolts (1) and head (2) from housing (3).
Illustration 2 g01892334
Remove port plate (4) from head (2).
Illustration 3 g01864133
Remove O-ring seal (5).
Install Tooling (A). Note: Tooling (A) will keep the rotating group together while the rotating group is being removed from the pump housing.
Illustration 4 g01892813
Use Tooling (B) to remove key (7).
Illustration 5 g01892714
Use Tooling (C) to remove retaining ring (8).
Use Tooling (D) to remove retaining ring (9).
Remove cover (10) and the O-ring seal.
Illustration 6 g01892735
Remove seal (11) from cover (10).
Illustration 7 g01910157
Use Tooling (E) in order to remove the rotating group from the pump housing.
Illustration 8 g01892737
Remove Tooling (A) and barrel (6) from the rotating group.
Remove spring (12) and spacer (13) from barrel (6).
Illustration 9 g01892753
Remove bolts (14), pin (15), pistons (16), and plate (17).
Illustration 10 g01892773
Use Tooling (F) to remove retaining ring (18) and shim (19).
Illustration 11 g01892634
Remove O-ring seal (23).
Place shaft assembly (20) into a suitable press.
Remove bearing (21), ring bearing (22), shim kit (24), the bearing cone, and bearing cup (25) from shaft assembly (20). Note: Bearing cone (25) will be destroyed when bearing (25) is separated from shaft assembly (20).
Remove slipper (26) and spring (27).