TM 9--2350--292--20--10018 00--3AUXILIARY POWER UNIT FAILS TO CRANK -- CONTINUED0018 00ECONTINUEDFROMSTEPBANDDnoyesIs 24 V dc present?CONTINUED ON NEXT PAGENOTERemove sealant from electrical terminals toensure good contact for multimeter leads.Apply adhesive to all exposed terminalsafter troubleshooting is complete.1. Reconnect harness 3W711 lead 66 tostarter relay terminal A2.2. Disconnect lead N at preheater relay.3. Turn MASTER switch ON(TM 9--2350--292--10).4. Place multimeter red lead to lead Nconnector and black lead to ground.5. Turn PREHEAT switch to MOM ON(TM 9--2350--292--10).6. Check for voltage.7. Turn MASTER switch OFF.Repair (WP 0290 00) or replace(WP 0649 00) harness 3W711.Verify fault is corrected.FnoyesIs 24 V dc present?1. Reconnect lead N to preheater relay.2. Disconnect lead P from preheater relay.3. Turn MASTER switch ON(TM 9--2350--292--10).4. Place multimeter red lead to lead Pconnector and black lead to ground.5. Turn PREHEAT switch to MOM ON(TM 9--2350--292--10).6. Check for voltage.7. Turn MASTER switch OFF.Repair (WP 0290 00) or re-place (WP 0656 00) lead P.Verify fault is corrected.
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