TM-9-2320-366-20-2 MTV Unit Maintenance Manual M1083 Series - Volume 2 Download
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VOLTAGE TEST  Remove rings, bracelets, watches, necklaces,  and any other jewelry before working around  vehicle. Jewelry can catch on equipment and  cause injury or short across electrical circuits  and cause severe burns or electrical shock.  WARNING  TM 9-2320-366-20-2  Change 1 2-1450.19  NOTE  (1) Install circuit breaker CB50 in PDP.  (2) Set multimeter to volts DC.  (3) Connect positive (+) probe of multimeter  to terminal block TB9.  (4) Connect negative (-) probe of multimeter to  ground and note reading on multimeter.  (5) If 24 VDC is not present, go to step 15 of  this fault.  (6) If 24 VDC is present, replace M1089  control panel wiring harness (para 7-83)  and STATION SELECTOR switch  (para 7-34).  Perform steps (7) and (8) if 24 VDC is  present at terminal block TB9.  (7) Install PDP cover (para 16-2).  (8) Install wrecker control panel top cover  (para 14-4).