NUT 3830273 - Caterpillar

Illustration 1 g00593638
(1) Bolts Torque ... 120 20 N m (90 15 lb ft)
Illustration 2 g00115247
Illustration 3 g00280590
Illustration 4 g00280589
(2) BoltUse the following procedure to tighten the bolts for the aftercooler:
Assemble seals to the aftercooler core.
Temporarily secure the bottom seal with tape. Do not use an adhesive, a silicone lubricant, or any other lubricant for retention of the seal.
Assemble the aftercooler with the seals to the inlet manifold.
Inspect the bottom seal in order to ensure that the seating in the recess is correct.
Install the aftercooler cover.
Inspect the upper seal in order to ensure that the seating in the recess is correct.
Install the cover bolts and hand tighten the bolts.
Tighten the bolts according to the numerical sequence to the following torque.Torque ... 24 N m (18 lb ft)
Tighten the bolts again according to the numerical sequence to the following torque.Torque ... 47 N m (35 lb ft)
Remove the tape.
Illustration 5 g00593640
(3) PlugApply 4C-5598 Anti-Seize Compound to the threads of the plug. Torque ... 20 5 N m (15 4 lb ft)