TM 9-2350-287-20-12-19. TROUBLESHOOTING CHART (continued).g. GAGES (continued).(9) TACHOMETER FAILS TO OPERATE WHENENGINE IS RUNNING.Initial Setup:Tools/Test Equipment:• Engine shut OFF (refer to TM 9-2350-287-10).• General mechanic’s tool kit (Item 24,• Portable instrument panel removed refer toAppendix 1)(para 7-6).• Air intake grille open (refer to TM 9-2350-287-10).Personnel Required: TwoEquipment Conditions:• Left and right transmission access doors(refer to TM 9-2350-287-10).NOTE• Instead of using multi meterfor voltagecheck, STE/lCEtroubleshooting,INDIVIDUALBATTERY VOLTAGE TEST-TEST89 maybe performed.• Instead of using multi meterfor continuity check, STE/lCEtroubleshooting, TEST 91 maybe performed.A. 1. Place driver’s portable instrument panel inoutside location (refer to TM 9-2350-287-10).2. Remove six screws and cover from driver’sinstrument panel.3. Pull fuel shutoff out and hold it so thatengine will not start (refer to TM 9-2350-287-10).4. Turn MASTER switch ON (refer to TM 9-2350-287-1O).5. Crank engine (refer to TM 9-2350-287-10).6. Observe tachometer flexible drive shaftfor rotation.Does tachometer flexible drive shaft rotate?Continued on next page2-128
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