HEAD GP-CYL -UTN 0R4644 - Caterpillar

Disassembly Procedure
Start By:
Remove the power train oil filter. Refer to Disassembly and Assembly, "Oil Filter and Base (Power Train) - Remove".Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.
Illustration 1 g00681800
Remove harness assembly (1) .
Remove the bolts and cover assembly (2) from the housing assembly.
Illustration 2 g00681797
Remove nut (5), retainer (4), and element assembly (3) from cover assembly (2) .
Remove the O-ring seal from retainer (4) .
Illustration 3 g00681795
Remove O-ring seals (6), (7), and (8) from the cover assembly.
Illustration 4 g00681793
Remove plugs (9) and (10) from the housing assembly.
Illustration 5 g00681791
Remove stem (16) from housing assembly (11) .
Remove ring (12), valve (15), spring (13), and spacers (14) from stem (16) .
Illustration 6 g00681787
Remove switch assembly (17) .
Illustration 7 g00681783
Remove spool (20), spring (19), cover (18), and the O-ring seal from housing assembly (11) .
Illustration 8 g00681781
Remove spool assembly (22) and spring (21) from housing assembly (11) .
Illustration 9 g00681778
Remove shims (27), slug (26), ring (25), sleeve (24), retainer (29), spring (28), and poppet (23) from spool assembly (22) .