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Page Title: REPLACEMENT OF ON/OFF SWITCH (CB1 (cont)
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TM 11-5820-890-30-5 17-20. Tools: REPLACEMENT OF ON/OFF SWITCH (CB1). Cross  tip  screwdriver Torque   screwdriver Needle  nose  pliers Expendable  Supplies: Solder References: Paragraph  17-17  for  removal 1/2-inch  combination  wrench Torque  wrench Soldering  kit 1/2-inch   socket Cotton  swabs Alcohol and  installation  of  the  rear  cover  assembly  (15A1). ITEM ACTION REMARKS REMOVAL a.  Rear  cover  assembly  (1) b.  ON/OFF  switch  (CB1) (7)  terminals c.  ON/OFF  switch  (CB1) (7),  hex  nut,  switch plate,  and  lock  ring d.   ON/OFF   switch (CB1)  (7) INSTALLATION e. f. g. h. ON/OFF  switch (CB1)  (7) ON/OFF switch (CB1)  (7),  hex  nut, switch  plate,  and lock ring ON/OFF  switch (CB1)  (7)  terminals Rear   cover assembly  (1) Remove  and  retain  rear  cover Refer  to  paragraph  17-17 assembly. for  rear  cover  assembly removal   instructions. See  figure  17-4. Tag  the  wire  locations  on  CB1  terminals. Using  soldering  kit,  desolder  tagged  wires from  CB1  terminals. Using  1/2-inch  combination  wrench, remove  and  discard  hex  nut,  switch plate,  and  lock  ring  securing  CB1  to case  (3). Remove  and  discard  defective ON/OFF  switch  (CB1)  (7). Obtain  replacement  ON/OFF switch  (CB1). Using  1/2-inch  combination  wrench,  install and  hand  tighten  replacement  hex  nut, switch  plate,  and  lock  ring  securing  CB1 to  case  (3).  Using  torque  wrench  and 1/2-inch  socket,  torque  nut  to  10  in-lb. Replacement  nut,  plate  and locking  ring  is  supplied  with replacement  CB1. Using  soldering  equipment  and  needle Before  and  after  soldering, nose  pliers,  attach  and  solder  tagged clean  wires  and  switch wires  to  correct  CB1  terminals,  and terminals  with  alcohol  and remove  wire  tags. cotton   swabs. Install  retained  rear  cover Refer  to  paragraph  17-17 assembly. for  rear  cover  assembly installation   instructions. 17-29


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