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Section  IV.  MAINTENANCE  PROCEDURES - TM-11-5820-890-30-5_624
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TM-11-5820-890-30-5 Ground Non-Icom Radio Sets Consisting of: Receiver-Transmitter Radio RT-1439/VRC (NSN 5896-01-195-0827) Manual
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REPLACEMENT  OF  CONNECTOR  CASE


TM 11-5820-890-30-5 7-9. REPLACEMENT OF ACCESS COVER.  Continued ITEM ACTION REMARKS REMOVAL Continued b.   Two   protective   caps   (2) c.   Four   spanner   nuts   (3) d.  Four  electrical retainers  (4) e.   Access   cover INSTALLATION f.   Access   cover g.   Four   o-rings h.  J1  through  J4 connector (1) (1) connectors (7)  through  (10) i. Four   electrical   connector retainers  (4) j. Four   spanner nuts  (3) k.                  Eight   screws   (5) and  Iockwashers  (6) Remove  and  inspect  two  protective  caps (2)  from  J4  and  J2  connectors  (9)  and (10).   If   damaged,   obtain   replacement. Use  spanner  wrench  with  1-1/4-inch  spanner wrench  attachment.  Remove  and  inspect four  spanner  nuts  (3)  from  J1  through  J4 connectors   (7)   through   (10).   If   damaged, obtain   replacement. Remove  and  inspect  four  electrical connector   retainers   from   four   connectors. If   damaged,   obtain   replacement. Remove  and  discard  defective  access  cover Obtain  replacement  access  cover  (1). Coat  o-rings  of  four  connectors  (7) through  (10)  with  silicone  compound. Install  four  connectors  in  four  connector holes  in  access  cover  (1). Install  four  electrical  connector  retainers (4)  on  four  connectors. Use  spanner  wrench,  Install  and  hand tighten  four  spanner  nuts  (3)  securing four  connectors  to  access  cover  (1). Use  torque  wrench  and  1-1/4-inch spanner  wrench  attachment.  Torque nuts  to  100  in-lb. Use  cross  tip  screwdriver.  Install  and hand  tighten  eight  screws  (5)  and Iockwashers  (6)  securing  access cover(1)   to   connector   case   (12). Use  torque  screwdriver.  Torque screws  to  8  to  10  in-lb. NOTE If  you  are  working  on  a version  with  metal  caps, then  skip  this  step. NOTE If  you  are  working  on  a version  with  metal  caps, then  replace  all  four connector   retainers. (1). If  a  screw  is  not  stripped but  will  not  tighten,  refer to  paragraph  7-16  for replacement  of  its  threaded screw  insert  (if  present). If  a  tapped  hole  is defective,   refer   to   para- graph  7-10  for  replace- ment  of  the  connector case   (12). l. Two  protective  caps  (2) Install  two  protective  caps  (2)  on  J4 and  J2  connectors  (9)  and  (10). 7-6


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