TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download
Page 438 of 1824
KNOWN INFO TEST OPTIONS REASON FOR QUESTION 4. e4. 24 VDC CIRCUITS DO NOT OPERATE (CONT) NO YES If continuity is not present, wire 1602 is faulty. Continuity Test or STE/ICE-R Test #91 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. CAUTION Read CAUTION on following page. Repair wire 1602 from terminal X1on PDP to relay K2 socket 30 on PDP (para 2-45) or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly (para 7-11). Is continuity present from relay K2 socket 30 on PDP to terminal X1 on PDP? TM 9-2320-366-20-1 2-274 Change 1