COUPLING 3T8219 - Caterpillar

Illustration 1 g02558316
Illustration 2 g02559876
Tightening sequence
Table 1
Specification for 343-0589 Exhaust Manifold Gp
Item Qty Part Specification Description
1 12 9X-6620 Locknut Before assembly, apply 4C-5599 Anti-Seize Compound to the threads.
Torque to 55 5 N m (41 4 lb ft).
Refer to Illustration 2 for the locknut tightening procedure.
2 12 116-3715 Taperlock Stud Torque tool speed should not exceed 100 rpm.
Torque to 35 5 N m (26 4 lb ft).
3 1 324-9290 Bellows As Assemble the bellows assembly with the “Flow Arrow” toward the NOx Reduction System (NRS) cooler.
The total maximum misalignment of the bellows assembly allowed between the NRS cooler and the exhaust manifold elbow is 1.5 mm (0.06 inch) lateral and 1.5 mm (0.06 inch) axial.
4 2 9N-5085 Clamp Torque to 7.5 1.0 N m (66.4 8.9 lb in).
5 1 231-9030 Exhaust Manifold Before assembly, apply thin coat of 2P-2333 High Temperature Sealer to the outside diameter of the male end of the exhaust manifold.
Remove the excess sealer from the assembled joints.
6 6 283-2238 Gasket Install the gasket with tab down as shown in Illustration 1.