Figure 4-21A. Oil Filter
4-7.2.2 Hydraulic Cooling Fan Motor. (Figure 4-21B)
Disassembly. Thoroughly clean the exterior of the pump prior to disassembly.
Clamp the pump body (1) securely in a soft jawed vise. Cover sharp edges of drive shaft with tape, after
removing key (2).
Remove screws (3).
Do not use a screwdriver to attempt to pry front cover (4) or rear cover (5) from body (1).
Carefully remove the front cover (4) and rear cover (5) from the pump body (1). Should these be tight on
their dowels (6), lightly tap with a mallet to release. Remove seals (7), loading seals (8) and thrust plates
Withdraw the gears (10 and 11) from the body (1) as an assembly and carefully note their original
Remove retaining ring (12), then, supporting the front cover (4) outer face downward, tap out the oil seal
(13) with a soft metal drift.