LOCKNUT 4925198 - Caterpillar

Removal Procedure
Start By:
Remove the air inlet manifold. Refer to Disassembly and Assembly, "Air Inlet Manifold - Remove and Install".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g03393899
Remove two band clamps (2) and bellows (1). Note: Band clamps and bellows are one time use.
Repeat Step 1 for the opposite side.
Remove four band clamps (6), two bellows (5), four bolts (3), and adapter (4). Note: Band clamps and bellows are one time use.
Illustration 2 g03394296
Remove two exhaust temperature sensors (7).
Illustration 3 g03394707
Remove two band clamps (9) and bellows (10). Note: Band clamps and bellows are one time use.
Remove four bolts (11) and exhaust manifold (8).
Repeat Steps 5 through 6 for the remaining exhaust manifolds. Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A - Loctite C5A Copper Anti-Seize -
Install exhaust manifolds (8) in reverse order of removal.
Apply Tooling (A) to bolts (11).
Tighten bolts (11) to 55 5 N m (41 4 lb ft) then retighten bolts (11) to 55 5 N m (41 4 lb ft).
Tighten band clamps (2) to 17 2 N m (13 1 lb ft). Tap band clamps (2) around the circumference and retighten to 17 2 N m (13 1 lb ft).
Tighten band clamps (6) to 17 2 N m (13 1 lb ft). Tap band clamps (6) around the circumference and retighten to 17 2 N m (13 1 lb ft).
Tighten band clamps (9) to 12 1 N m (9 1 lb ft).