SEAL-BULK 4493897 - Caterpillar

Removal Procedure
Start By:
If the Diesel Particulate Filter (DPF) assembly is mounted on the valve mechanism cover, removal of the DPF assembly will be necessary in order to access the valve mechanism cover. Refer to Disassembly and Assembly, "Diesel Particulate Filter - Remove" for the correct procedure.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g02522396
Remove bolts (1) and bolts (4) from bracket (2) and bracket (3). Position brackets and harness assembly away from valve mechanism cover (7).
Disconnect the plastic tube assembly (5) from the valve mechanism cover for the crankcase breather. Refer to Disassembly and Assembly, "Crankcase Breather - Remove" for the correct procedure.
Remove bolt (6) from valve mechanism cover (7).
Remove valve mechanism cover (7) from the cylinder head. Note: Remove the valve mechanism cover vertically in order to avoid damage to the electronic unit injectors.
Illustration 2 g02522397
Remove gasket (8) from valve mechanism cover (7). Installation Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 3 g02522397
Thoroughly clean all gasket surfaces of valve mechanism cover (7). Clean the gasket surfaces of the cylinder head.
Inspect gasket (8) for damage. If necessary, install a new gasket (8) to valve mechanism cover (7). Note: Ensure that the gasket is fully seated into the groove of the valve mechanism cover.
Illustration 4 g02522398
Illustration 5 g02522396
Ensure that harness assemblies (10) are not in contact with rocker arms (11) or cylinder head (9). Note: Install the valve mechanism cover vertically in order to avoid damage to the electronic unit injectors.
Position valve mechanism cover (7) onto cylinder head (9). Ensure that harness assemblies (10) are not trapped during the assembly procedure.
Install bolts (6).
Illustration 6 g02522516
Tighten the bolts in the numerical sequence that is shown in Illustration 6. Tighten the bolts to a torque of 22 N m (195 lb in). Repeat Step 6 in order to ensure correct torque.
Position brackets and harness assembly onto the valve mechanism cover. Install bolts (1) and bolts (4) to bracket (2) and bracket (3).
Tighten bolts (1) and bolts (4) 9 N m (79 lb in).
Connect the plastic tube assembly to the valve mechanism cover for the crankcase breather. Refer to Disassembly and Assembly, "Crankcase Breather - Install" for the correct procedure. End By:
If the Diesel Particulate Filter (DPF) assembly is mounted on the valve mechanism cover, installation of the DPF assembly will be necessary after the valve mechanism cover has been installed. Refer to Disassembly and Assembly, "Diesel Particulate Filter - Install" for the correct procedure.