TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
Page 412 of 1760
KNOWN INFO POSSIBLE PROBLEMS Is vehicle equipped with a 100 AMP reverse polarity relay? TEST OPTIONS 10. Service drive lights OK. Circuit breaker CB70 OK. Batteries OK. e4. 24 VDC CIRCUITS DO NOT OPERATE (CONT) Visual Inspection REASON FOR QUESTION This question eliminates possible problems and determines where to continue troubleshooting. Go to step 16 of this fault. YES NO Faulty 100 AMP reverse polarity relay. Faulty 100 AMP reverse polarity relay to power distribution panel (PDP) 24 VDC cable. Faulty battery to 100 AMP reverse polarity relay 24 VDC cable. Faulty 200 AMP reverse polarity relay. Faulty 200 AMP terminal block. Faulty battery to 200 AMP terminal block 24 VDC cable assembly. Faulty 200 AMP terminal block to reverse polarity relay 24 VDC battery cable. Faulty 200 AMP terminal block to reverse polarity relay 24 VDC load cable. Faulty 200 AMP terminal block to power distribution panel (PDP) 24 VDC cable. TM 9-2320-365-20-1 2-274.2 Change 1