BOLT 8C3411 - Caterpillar

Illustration 1 g03019700
Table 1
Specification for 347-3276 Exhaust Bypass
Item Qty Part Specification Description
1 1 6V-8186 Full Nut Torque to 12.5 1.0 N m (110.6 8.9 lb in).
2 1 7E-4677 Spring Free length is 115.3 mm (4.54 inch).
3 1 7E-4676 Spring Free length is 115.3 mm (4.54 inch).
4 1 1B-2578 Nut Torque to 14 3 N m (124 27 lb in).
5 5 7C-9721 Screw Torque to 6.5 1.0 N m (57.5 8.9 lb in).
6 1 320-8921 Setscrew Before assembly, apply Loctite C5A Copper Anti-Seize to the threads and bearing surfaces.
Illustration 2 g03019698
Top front view
Table 2
Item Qty Part Specification Description
7 4 168-7800 Locknut Before assembly, clean the stud, the locknut, and the locknut/base assembly interface area.
Use the following procedure to tighten the locknut:
1. Tighten the two diagonal locknuts to 25 6 N m (221 53 lb in).
2. Tighten the remaining locknuts to 25 6 N m (221 53 lb in).
3. Retighten all the four locknuts to 47 9 N m (35 7 lb ft).