CYLINDER HEAD GP 4W3814 - Caterpillar

Removal Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
When disconnecting and connecting the plastic tube assemblies for the crankcase breather system, the plastic tube assemblies should not be twisted. Twisting of the plastic tube assemblies will result in the seals being damaged. Damaged to seals will result in leakage.
Illustration 1 g02163113
Illustration 2 g02163114
Cut cable strap (2) from plastic tube assembly (3).
Remove plastic tube assembly (3) from breather canister (1) and the valve mechanism cover.
If necessary, cut cable straps in order to remove plastic tube assembly (4) from breather canister (1).
Remove plastic tube assembly (5) from breather canister (1) and adapter (6) in the cylinder block.
Remove bolts (7) and remove breather canister (1) from the cylinder head.
Illustration 3 g02163115
Remove bolt (8) and remove valve (6) from the cylinder block.
Remove O-ring seal (9) from valve (6).
Illustration 4 g02163116
If necessary, follow Step 8.a through Step 8.e in order to disassemble the breather canister.
Remove bottom cap (14) from breather canister (1).
Remove seal (13) from bottom cap (14).
Remove filter element (12) from breather canister (1). Refer to Operation and Maintenance Manual, "Engine Crankcase Breather Element - Replace" for the correct procedure.
Remove top cap (10) from breather canister (1).
Remove seal (11) from top cap (10).