TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download
Page 440 of 1824
KNOWN INFO TEST OPTIONS REASON FOR QUESTION 5. e4. 24 VDC CIRCUITS DO NOT OPERATE (CONT) NO Go to step 14 of this fault. YES Continuity Test or STE/ICE-R Test #91 This question eliminates possible problems and determines where troubleshooting continues. Service drive lights OK. Circuit breaker CB70 OK. Batteries OK. 100 AMP reverse polarity relay OK. 100 AMP reverse polarity relay to power distribution panel (PDP) 24 VDC cable OK. Battery to 100 AMP reverse polarity relay 24 VDC cable OK. 200 AMP reverse polarity relay 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. 200 AMP terminal block to reverse polarity relay 24 VDC load cable OK. 200 AMP terminal block to power distribution panel (PDP) 24 VDC cable OK. POSSIBLE PROBLEMS Faulty relay K2. Faulty master power switch. Faulty dashboard cable assembly. Is continuity present from relay K2 socket 86 on PDP to circuit breaker CB70 socket 3 on PDP? TM 9-2320-366-20-1 2-276 Change 1