2320-01-318-9902 EIC:B5C, VOLUME NO. 2">

 

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TM 9-2320-360-20-2
APPENDIX E
TORQUE VALUES
E-1. GENERAL
This appendix provides general torque limits for screws used on the HET Tractor. Special torque limits are shown in the
maintenance procedures for applicable components. Use the general torque limits given in this appendix when specific
torque limits are not given 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 instruction, tighten the screw or nut until it touches the metal bracket, then tighten it
one more turn.
E-2. TORQUE LIMITS
Table E-1 lists dry torque limits. Dry torque limits are used on screws that do not have lubricants applied to the threads.
Table E-2 lists wet torque limits. Wet torque limits are used on screws that have high pressure lubricants applied to the
threads. Table E-3 lists dry torque limits for metric screws.
E-3. USE OF TORQUE TABLES
(1) Measure the diameter of the screw you are installing.
(2) Count the number of threads per inch.
(3) Under the heading DIAMETER look down the column until you find the diameter of the screw. (There are usually
two lines beginning with the same diameter.)
NOTE
Step (4) is not required for metric screws.
(4) Under the heading THREADS PER INCH, find the number of threads per inch that matches the number you
counted in step (2).
(5) To find the grade of the screw, match the markings on the head to the correct picture under CAPSCREW HEAD
MARKINGS on the torque table.
(6) Look down the column under the picture your found in step (5) until you find the torque limit (lb-ft or Nm) for the
diameter and threads per inch of the screw.
E-1

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