APPENDIX E TORQUE LIMITS - TM-10-3930-673-20-20769

TM 10-3930-673-20-2

TORQUE LIMITS

E-1. SCOPE

This appendix provides general torque limits for the different fasteners used on the ATLAS. Special torque limits are listed in

the maintenance procedures for applicable components. The general torque limits given in this appendix shall be used when

specific torque limits are not indicated in the maintenance procedure. These general torque limits cannot be applied to screws

that retain rubber components. The rubber components will be damaged before the torque limit is reached. If a special torque

limit is not given in the maintenance instructions, tighten the screw or nut until it touches the metal bracket then tighten it one

more turn.

E-2. TORQUE LIMITS

Refer to the following tables for specific torque limits:

Wet Flange Nuts* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Table E-1

Wet Socket Head Capscrews* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Table E-2

Dry Capscrews** . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Table E-3

Wet Capscrews* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Table E-4

* Wet torque limits are used on screws that have high pressure lubricants applied to the threads.

** Dry torque limits are used on screws that do not have high pressure lubricants applied to the threads.

E-3. HOW TO USE THE TORQUE TABLE

Measure the diameter of the screw you are installing with

a ruler.

b. Measure out one inch with a ruler and count the number of

threads per inch.

Under the heading SIZE, look down the left-hand

column until you find the diameter of the screw you are installing

(there will usually be two lines beginning with the same size).

d. In the second column under SIZE, find the number of

threads per inch that matches the number of threads per inch you

counted in Step b. (Not required for metric screws.)

e. To find the grade screw you are installing, match the

markings on the head to the correct picture of CAPSCREW

HEAD MARKINGS on the torque table.

E-1