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RADIATOR MODIFICATION (cont)
Table D-1.  Torque Limits for Dry Fasteners - TM-55-2210-223-34_378

TM-55-2210-223-34 Locomotive Diesel-Electric 06-1/2-Inch Gage 60 Ton 000HP 0-4-4-0 Wheel Model RS-4-TC-1A NSN 2210-01-158-2978 Manual
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TM 55-2210-223-34 TO 54A2-2-14-22 APPENDIX D TORQUE LIMITS D-1.  GENERAL This section provides general torque limits for screws used on the locomotive. Special torque limits are indicated 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  secure  rubber  components.  The  rubber  components  will  be  damaged  before  the  correct  torque  limit  is reached.  If  a  special  torque  limit  is  not  given  in  the  maintenance  instructions,  tighten  screw  or  nut  until  it  touches  the metal bracket then tighten it one more turn. D-2.  TORQUE LIMITS Table D-1 lists dry torque limits.  Dry torque limits are used on screws that do not have lubricants applied to the threads. Table D-2 lists wet torque limits. Wet torque limits are used on screws that have high-pressure lubricants applied to the threads. D-3.  HOW TO USE TORQUE TABLE a. Measure the diameter of the screw you are installing. b. Count the number of threads per inch. c. 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 you counted in step (2). 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. f. Look down the column under the picture you found in step (5) until you find the torque limit (in lb-ft or N.m) for the diameter and threads per inch of the screw you are installing. D-1







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