CHARGING SYSTEM DOESN’T OPERATEGage shows no charge with engine running or isn’t steady or accurate.BATTERY IS OVERCHARGINGBattery gage is in right red.GENERATOR (ALTERNATOR)Start engine and check air cleaner dust ex-hauster motors for operation. If inoperative,troubleshoot and repair air cleaner blowermotor circuit (p 2-113). If air cleaner dust ex-hauster motors operate, go to step 2.2Run STE/ICE Test No. 83 (p 2-48.40).a If test passes, go to step 3.b If test fails, go to step 5.3Run STE/ICE Test No. 82 (p 2-48.38).a If test passes, go to step 4.b If test fails, replace voltage regulator (p6-5) and verify no faults.4Run STE/ICE Test No. 67 (engine running)(p 2-48.29).a If reading is greater than 28.5 volts, goto step 51.b If reading is less than 27.5 volts, go tostep 5G.c If test passes, go to step 5A.5Troubleshoot charging system circuit.2-119Change 1TA312697TM 9-2350-267-20
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