3408C, 3412C and 3412D High Performance Marine Engines Caterpillar

Illustration 1	g00509562

(1) Tighten three screws to the following torque. ... 11 ± 3 N·m (8 ± 2 lb ft)

Illustration 2	g00509595
View A-A

(2) Apply 9S-3263 Thread Lock Compound on the threads of the impeller.

(3) Tighten the nuts to the following torque. ... 40 ± 5 N·m (30 ± 4 lb ft)

Illustration 3	g00509560

(4) Tighten the nut to the following torque. ... 55 ± 7 N·m (41 ± 5 lb ft)

Lightly tap the gear with a hammer. Tighten the nut again to the following torque. ... 55 ± 7 N·m (41 ± 5 lb ft)