TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download
Page 470 of 1824
KNOWN INFO TEST OPTIONS REASON FOR QUESTION Is continuity present from terminal lug TL169 to terminal lug TL167? e4. 24 VDC CIRCUITS DO NOT OPERATE (CONT) NO YES Continuity Test or STE/ICE-R Test #91 If continuity is not present, 200 AMP terminal block to reverse polarity relay 24 VDC load cable is faulty. If continuity is present, 200 AMP terminal block to PDP 24 VDC cable is faulty. 20. Service drive lights OK. Circuit breaker CB70 OK. Batteries OK. 200 AMP terminal block OK. Battery to 200 AMP terminal block 24 VDC cable assembly OK. 200 AMP terminal block to reverse polarity relay 24 VDC battery cable OK. POSSIBLE PROBLEMS Faulty 200 AMP reverse polarity relay. 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. Replace 200 AMP terminal block to reverse polarity relay 24 VDC load cable (para 20-51). TM 9-2320-366-20-1 2-284.22 Change 1