RADIATOR AS 4499426 - Caterpillar

Illustration 10 g00996246Note: Place a mark on cam (15) in order to identify the correct key at assembly.
Remove nut (16), cam (15), and the key from the shaft.
Remove two screws, the washers, the lockwashers and plate (17) from the bearing support.
Illustration 11 g00996250
Remove three screws (18) and the lockwashers that hold bearing support (19) in position.
Illustration 12 g00996251
Install a 1 1/2 inch long 1/4 inch 20 NC forcing screw (20), as shown. Remove bearing support (19) from the housing.
Illustration 13 g00996252
Use Tooling (A) in order to remove snap ring (21).
Use a press in order to remove distributor gear and shaft assembly (22) from the bearing support.
Illustration 14 g00996254
Loosen screws (24) and wedges (23). Turn rotor shaft (25) until the magnetic field is broken. Remove the screws, the wedges and coil (26) from the housing.
Illustration 15 g00996255
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.
Note: Care must be taken when coupling shell (28) and the spring are removed. The coupling is under spring force.
Turn over the housing and remove nut (27) and the washer from the impulse coupling.
Use pliers on one of the drive lugs of coupling shell (28). Turn and pull the coupling at the same time until the spring releases. To make a separation of the coupling from the hub, the spring end must be removed from the groove in the hub.
Illustration 16 g00996258Note: The coil of spring (30) must be in the correct direction for magneto rotation. The spring must be in a clockwise direction from end (29) in order to rotate the coil counterclockwise.
Remove spring (30) from coupling shell (28).
Illustration 17 g00996260
Remove hub (31) from the shaft.
Illustration 18 g00996262
Remove key (33) and seal (32). Destroy seal (32) in order to remove the seal.
Illustration 19 g00996263
Use Tooling (B) in order to remove snap ring (35). Remove pin (34).
Illustration 20 g00996264
Use a press in order to remove shaft assembly (25) from housing (36).
Illustration 21 g00996265
Use Tooling (B) in order to remove snap ring (37) that holds bearing (38) in position.
Illustration 22 g00996266
Use a press in order to remove bearing (38) from housing (36).
Remove cover (39) and the screens from each side of housing (36).