GEAR (23 teeth) 3P8174 - Caterpillar

Illustration 1 g03540436
Illustration 2 g03540437
Tightening sequence
Table 1
Specification for 380-8509 Exhaust Manifold Gp
Item Qty Part Specification Description
1 12 116-3715 Taperlock Stud Torque to 35 5 N m (26 4 lb ft).
2 12 9X-6620 Locknut Before assembly, apply Loctite C5A copper anti-seize to the threads and bearing surfaces.
Use the following procedure to tighten the locknuts:
Tighten the locknuts in the numerical sequence that is shown in Illustration 2 to 20 3 N m (177 27 lb in).
Again, tighten the locknuts in the numerical sequence that is shown in Illustration 2 to 50 5 N m (37 4 lb ft).
3 4 245-9750 Taperlock Stud Torque to 35 5 N m (26 4 lb ft).