TM-9-2320-366-20-2 MTV Unit Maintenance Manual M1083 Series - Volume 2 Download
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TM 9-2320-366-20-2 e148. M1088/M1089 WORKLIGHTS DO NOT ILLUMINATE (CONT) 2-1546 Change 1 TEST OPTIONS REASON FOR QUESTION KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION KNOWN INFO POSSIBLE PROBLEMS Voltage Test or STE/ICE-R Test #89 Continuity Test or STE/ICE-R Test #91 5. 4. WARNING Read WARNING on following page. Circuit breakers CB71, CB72, and CB74 OK. Hazard lights illuminate. Light bulb OK. Auxiliary panel cable assembly OK. Relay K9 OK. Diode D2B OK. Worklights switch OK. Circuit breakers CB71, CB72, and CB74 OK. Hazard lights illuminate. Light bulb OK. Auxiliary panel cable assembly OK. Relay K9 OK. Diode D2B OK. Worklights switch OK. Faulty dashboard cable assembly. Faulty relay K12. Repair wire 3067 from relay K12 terminal 85 on PDP to terminal board TB2 position 30 or (para 2-45) replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly (para 7-11). YES NO Is continuity present from relay K12 terminal 85 and a known good ground? If continuity is not present, wire 3067 is faulty. Is 12 VDC present at relay K12 terminal 30? If 12 VDC is not present, wire 1674 is faulty. Faulty dashboard cable assembly. Faulty relay K12. NO Repair wire 1674 from relay K12 terminal 30 on PDP to circuit breaker CB72 terminal 2 (para 2-45) or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly (para 7-11). YES