RING 7S4439 - Caterpillar

Illustration 1 g03019778
Top front view
Table 1
Specification for 387-5464 Exhaust Bypass
Item Qty Part Specification Description
1 4 5M-1719 Taperlock Stud Torque to 35 5 N m (26 4 lb ft).
2 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 1E2079A.
Illustration 2 g03019779
Table 2
Item Qty Part Specification Description
3 1 7S-7816 Locknut Torque to 12.5 1.0 N m (110.6 8.9 lb in).
4 1 7E-4677 Spring Free length is 115.3 mm (4.54 inch).
5 1 7E-4676 Spring Free length is 115.3 mm (4.54 inch).
6 1 1B-2578 Nut Torque to 14 3 N m (124 27 lb in).
7 5 7C-9721 Screw Torque to 6.5 1.0 N m (57.5 8.9 lb in).
8 1 320-8921 Setscrew Before assembly, lubricate the threads and bearing surfaces with Loctite C5A Copper Anti-Seize.