SHUTOFF GP-RACK 1N5073 - Caterpillar

Illustration 1 g01417806
Orientation of clamps from front view of engine
Tightening sequence for the exhaust manifold
(C) Orientation for four clamps ... 78 5 degrees (D) Orientation for four clamps ... 90 5 degrees (13) Torque for eight clamps ... 8.5 1.0 N m (75 9 lb in)Note: Use a centering tool in at least one oversize hole per exhaust manifold section in order to align the exhaust manifolds. Do not remove the centering tools until removal is required to tighten the locknuts.Use the following procedure to tighten the locknuts:Note: Apply 4C-5599 Anti-Seize Compound to the threads of locknuts and to the bearing surface of the locknuts and the spacers and the washers before assembly.
Tighten locknut 1 through locknut 12 in a numerical sequence to 20 3 N m (15 2 lb ft).
Again, tighten locknut 1 through locknut 12 in a numerical sequence to 38 5 N m (28 4 lb ft).