FAN AS-REVERSE 1251362 - Caterpillar

Illustration 1 g01515816
Typical exampleRight side view of engine (2) High-pressure turbocharger (7) Low-pressure turbocharger
Illustration 2 g01502594
Tightening sequenceUse the following procedure in order to tighten the locknuts for the flange of the turbocharger:Note: Apply 4C-5599 Anti-Seize Compound to the washer face and to the threads of the locknuts before assembly.
Tighten locknut 1 through locknut 4 in a numerical sequence to 55 5 N m (41 4 lb ft). Refer to Illustration 2.
Again, tighten locknut 1 through locknut 4 in a numerical sequence to 55 5 N m (41 4 lb ft). (1) Opening pressure of the wastegate at 1.00 mm (0.039 inch) lift ... 172.4 kPa (25 psi) (3) Torque for the bolt ... 6 1 N m (55 9 lb in) (4) Torque for the elbow ... 12.0 1.5 N m (105 13 lb in) (5) Torque for the compressor clamp assembly ... 15.9 1.0 N m (140 9 lb in)Use the following procedure to tighten the clamp assembly (6) :
Tighten the clamp assembly to 18 N m (160 lb in).
Loosen the clamp assembly to 6 N m (55 lb in).
Again, tighten the clamp assembly to 15.9 1 N m (141 9 lb in).