TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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e3. 12 VDC AND 24 VDC CIRCUITS DO NOT OPERATE (CONT) KNOWN INFO YES TEST OPTIONS WARNING Read WARNING on following page. REASON FOR QUESTION 5. Faulty dashboard cable assembly. POSSIBLE PROBLEMS Is 12 VDC present at circuit breaker socket 1, left of circuit breaker CB70 on PDP? NO Voltage Test or STE/ICE-R Test #89 Repair wire 1601 from bus bar X7 on PDP to terminal X2 on PDP (para 2-40) or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly (para 7-11) TM 9-2320-365-20-1 2-256.6 Change 1 If 12 VDC is not present, wire 1601 is faulty. If 12 VDC is present, bus bar X7 is faulty. Circuit breaker CB70 OK. Battery(ies) OK. Cab to chassis ground strap OK. PDP to cab ground cable OK. Shunt OK. Starter to shunt 24 VDC cable OK. Battery to shunt cable assembly OK. Starter to chassis ground cable OK. 100 AMP reverse polarity relay OK. Battery to 100 AMP reverse polarity relay 12 VDC cable OK. 100 AMP reverse polarity relay to PDP 12 VDC cable OK. 200 AMP reverse polarity relay OK. 200 AMP terminal block OK. 200 AMP terminal block to PDP 12 VDC cable OK. 200 AMP terminal block to reverse polarity relay 12 VDC load cable OK. 200 AMP terminal block to reverse polarity relay 12 VDC battery cable OK. Battery to 200 AMP terminal block 12 VDC cable assembly OK. Replace bus bar X7 on PDP or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly(para 7-11)