SEAL 4979641 - Caterpillar

Removal Procedure
Illustration 1 g02906277
Illustration 2 g02906317
Loosen the hose clamp and disconnect the hose assembly from elbow (1).
Slide the locking tab into the unlocked position and disconnect harness assembly (7) from throttle valve (8).
Loosen hose clamp (2) and disconnect hose assembly (4) from elbow (1).
Remove bolts (5) and remove nuts (3) from the elbow.
Remove the air inlet elbow from studs (9).
Remove gasket (6) (not shown).
Remove throttle valve (8) from studs (9).
Remove gasket (6) (not shown).
If necessary, remove studs (9). Refer to Disassembly and Assembly, "Inlet Manifold - Remove and Install" for the correct procedure.
Illustration 3 g02906404
If necessary, remove adaptor (12) and sealing washer (11) from elbow (1). Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A - Technologic 15 1
Check all components for wear and damage. If necessary, replace any components that are worn or damaged.
Illustration 4 g02906404
Illustration 5 g02906317
Illustration 6 g02906277
If necessary, install studs (9). Refer to Disassembly and Assembly, "Inlet Manifold - Remove and Install" for the correct procedure.
If necessary, install new sealing washer (11) to adaptor (12) and apply Tooling (A) to the threads of adaptor (12). Tighten the adaptor to a torque of 20 N m (177 lb in).
Install gasket (10) to studs (9).
Install throttle valve (8) to studs (9).
Install gasket (6) to studs (9).
Install elbow (1) to studs (9).
Install bolts (5) finger tight.
Install nuts (3) finger tight.
Tighten bolts (5) and nuts (3) to a torque of 10 N m (89 lb in).
Position hose clamp (2) onto hose assembly (4). Install hose assembly (4) to adaptor (12) and tighten hose clamp (2) securely.
Install harness assembly (7) to throttle valve (8). Slide the locking tab into the locked position.
Install the clamp to the air inlet hose and connect the air inlet hose to elbow (1).