TM 5-6115-593-12 TO 35C2-3-463-1 by  twisting  them  together.  Solder  the connection   and   wrap   with   electrical tape. (2) If a wire is broken from a terminal lug, replace  the  lug.    If  a  wire  is  broken from a connector, resolder and reassemble. CAUTION Under     no     condition     leave     the     bare connection exposed. (3) If  a  break  in  the  wire  is  inaccessible within the  wiring harness, disconnect it  at  both  ends  and  tape  both  ends. Lace  a  new  lead  of  the  same  gauge and    insulation    outside    the    harness and connect it to the proper terminals or pins.  Properly tag both ends of all replacement wires. (4) If more than 30 percent of the harness wires    are    defective,    refer    to    next higher level of maintenance for replacement. Section XI.  MAINTENANCE OF AC-DC CONTROL BOX ASSEMBLY 4-28.    GENERAL.      This   section   contains   inspection, test, and replacement information for the AC-DC Control Box  Assembly.    See  figure  4-17,  4-18  and  4-19  and proceed as follows: a.   Gain  access  to  the  components  of  the  AC- DC   Control   Box   by   loosening   six   captive screws   on   the   AC-DC   control   panel   (3, figure    4-17).        Use    the    top    and    bottom latches  to  release  and  open  the  side  door (73, figure 4-17) to the AC-DC Control Box. b.   Inspection.    Inspection  components  of  the AC-DC Control Box Assembly for defective, broken,   or   cracked   components.      Inspect wiring for loose connections. c.   Testing.  Testing of components of the AC- DC    Control    Box    Assembly    is    described under the appropriate heading in paragraphs 4-29 through 4-35. d. Repair.          Repair     by     replacement     of components  which  do  not  function  properly during  testing.    Small  dents  in  the  control panel may be hammered out and refinished. WARNING Set MAINTENANCE LOCKOUT switch to LOCKOUT.      Disconnect   negative   cable from  batteries.    Remove  external  power. Load   terminals   of   generator   set   circuit breaker (CB2 may still be energized with bus voltage. e.   Replacement.    Replace  components  which do  not  function  properly  in  step  c  (Testing) as indicated in following paragraphs. Replace  control  panel  (3)  by  first  loosening six captive screws, then tag and disconnect leads  and  remove  screws  (1).    Install  new cover panel by installing panel using screws (1), then reconnect leads, remove tags, and tighten captive screws. 4-29.  CIRCUIT BREAKER CB103 (42, figure 4-18) a.   Test. (1)   Place circuit breaker switch to the ON (closed) position. (2)   At the rear of the panel, remove leads from one side of circuit breaker. (3)   With  an  ohmmeter  (Rx1  scale),  test circuit breaker for closed contacts.  If meter indicates an open circuit, replace circuit breaker. (4)   Place  circuit  breaker  in  OFF  position (open).        Using    ohmmeter    on    Rx1 scale,   test   circuit   breaker   for   open contacts.    If  meter  indicates  a  closed circuit replace circuit breaker. 4-50