Quantcast APPENDIX E TORQUE VALUES FOR THREADED FASTENERS

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TM 9-2815-250-24&P APPENDIX E TORQUE VALUES FOR THREADED FASTENERS Paragraph Page Number Paragraph Title Number E-1 General..................................................................................................................................... E-1 E-2 Torque Limits ............................................................................................................................ E-1 E-3 How To Use Torque Table.......................................................................................................... E-1 E-4 Tightening Metal Fasteners ........................................................................................................ E-3 E-5 Fastener Size and Thread Pattern .............................................................................................. E-4 E-6 Fastener Grade ......................................................................................................................... E-5 E-1.   GENERAL. This section provides general torque limits for screws used on the Diesel Engine Assembly, Hatz 2 G 40.  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  retain  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 the screw or nut until it touches the metal bracket, then tighten it one more turn. E-2.   TORQUE LIMITS. Table  E-1  (p.  E-2)  lists  dry  torque  limits.    Dry  torque  limits  are  used  on  screws  that  do  not  have  lubricants  applied  to threads.    Table  E-2  (p.  E-3)  lists  wet  torque  limits.    Wet  torque  limits  are  used  on  screws  that  have  high-pressure lubricants applied to threads. E-3.   HOW TO USE TORQUE TABLE. 1. Measure    the    diameter    of    the    screw    to    be installed. 2. Count  the  number  of  threads  per  inch  or  use  a pitch gage. 3. Under  the  heading  SIZE  (Tables  E-1  and  E-2), look     down     the     left-hand     column     until     the diameter  of  the  screw  to  be  installed  is  found (there will usually be two lines beginning with the same size). 4. In   the   second   column   under   SIZE,   find   the number   of   threads   per   inch   that   matches   the number of threads counted in step 2. E-1


 


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