TM-5-4310-389-14
APPENDIX F
TORQUE LIMITS
F-1 TIGHTENING HEAVY-DUTY BOLTS AND NUTS.
To prevent faulty assembly, the following information includes instructions on the tightening of heavy duty bolts, because
the procedure differs from standard torque methods. The tightening angle is particularly important and, for this reason,
Figure F-1 indicates how various angles can be readily obtained by comparison with a clock face.
1.
Lubricate threads and seating with motor oil before fitting.
2.
Screw the bolts in until they are uniformly positioned ready for pre-loading.
3.
Pre-load the bolts to the value stated in the Tightening Table for bolts and nuts (Table F-1).
4.
Tighten the bolts according to Table F-1.
Figure F-1. Tightening Angles
F-1
