MANIFOLD-EXHAUST 4P8280 - Caterpillar

Removal Procedure
Start By:
Remove air inlet manifold.
Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.
Note: The clamps and bellows are one-time use components. Discard the components after removal and install new components.
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Remove nine bolts (3) and remove shields (1), (2), and (4).
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Remove six bolts (5) and remove shields (6) and (7).
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Remove four bolts (8) and remove shields (9) and (10).
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Loosen two bolts (11).
Remove seven bolts (12) and remove shields (13) and (14) as one piece.
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Remove four bolts (15) and remove shields (16), (17), and (18).
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Remove bolts (19), exhaust manifold (20), and bellows (21).
Repeat for all necessary manifolds and bellows.
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Remove necessary V-band clamps (21).Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty.
A 5P-3931 Anti-Seize Compound -
Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.
Lubricate threads and bearing surfaces before assembly.
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Position and install V-band clamps (22).
Gap (x) is to be 12.7 3 mm (0.5 0.1 inch).
Tighten V-band clamps (22) to a torque of 12 N m (9 lb ft)..
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Position exhaust manifold (20) and bellows (21).
Install bolts (19).
Tighten bolts (19) to a torque of 55 5 N m (40.5 4 lb ft).
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Position shields (16), (17), and (18).
Install four bolts (15).
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Position shields (13) and (14) and install seven bolts (12).
Tighten two bolts (11).
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Position shields (9) and (10) and install four bolts (8).
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Position shields (7) and (6) and install six bolts (5).
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Position shields (1), (2), and (4) and install nine bolts (3).