TM-9-2320-366-20-2 MTV Unit Maintenance Manual M1083 Series - Volume 2 Download
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VOLTAGE TEST Change 1 2-1056.9 TM 9-2320-366-20-2 (1) Replace 100 AMP voltage regulator (para 7-5) or 200 AMP voltage regulator (para 20-46) with a known good voltage regulator. (2) Start engine (TM 9-2320-366-10-1). (3) Raise cab (TM 9-2320-366-10-1). (4) Lift dust boot from alternator 12 VDC terminal stud. (5) Set multimeter to volts DC. (6) Connect positive (+) probe of multimeter to alternator 12 VDC terminal stud. (7) Connect negative (-) probe of multimeter to ground and note reading on multimeter. (8) If 13.25 -14.75V is not present, replace 100 AMP alternator (para 7-2) or 200 AMP alternator (para 20-45). (9) If 13.25-14.75V is present, replace 100 AMP voltage regulator (para 7-5) or 200 AMP voltage regulator (para 20-46). (10) Position dust boot on alternator 12 VDC terminal stud. (11) Lift dust boot from alternator 24 VDC terminal stud. (12) Connect positive (+) probe of multimeter to alternator 24 VDC terminal stud. (13) Connect negative (-) probe of multimeter to ground and note reading on multimeter. (14) If 27.25 -28.75V is not present, replace 100 AMP alternator (para 7-2) or 200 AMP alternator (para 20-45). (15) If 27.25-28.75V is present, replace 100 AMP voltage regulator (para 7-5) or 200 AMP voltage regulator (para 20-46). (16) Position dust boot on alternator 24 VDC terminal stud. (17) Lower cab (TM 9-2320-366-10-1). (18) Shut down engine (TM 9-2320-366-10-1). 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