TM-9-2350-247-20-1 Unit Maintenance Manual Volume 1 M548A1 M548A3 Tracked Cargo Carrier Download
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TM 9-2350-247-20-1 100 AMP CHARGING SYSTEM MALFUNCTIONS (M548A1) 0023 00 INITIAL SETUP: M a i n t e n a n c e L e v e l Unit T o o l s a n d S p e c i a l T o o l s General Mechanic’s Tool Kit (WP 0541 00, Item 57) STE/ICE-R Test Set (WP 0541 00, Item 6) Multimeter (WP 0541 00, Item 29) Jumper Wire P e r s o n n e l R e q u i r e d Unit Mechanic R e f e r e n c e s See your -10 (WP 0108 00) E q u i p m e n t C o n d i t i o n Engine stopped (see your -10) Carrier blocked (see your -10) Engine disconnect lever IN (see your -10) Power plant rear access door/panel removed (see your -10) Cab personnel seats raised (see your -10) T NOTE There is an early and late model of auxiliary power receptacle. Both early and late models are shown. 1. Start engine and run at 1200 rpm (see your -10). 2. Remove cover (1) from auxiliary power receptacle (2). 3. Measure voltage between contacts (+) (3) and (-) (4) on auxiliary power receptacle (2). 4. Does multimeter read less than 26 or more than 29 volts? YES NO TN 1. Stop engine (see your -10). 2. Go to battery/generator indicator malfunctions (WP 0052 00). Y NOTE If no voltage is present the generator field switch may be defective. 1. Check generator field switch (WP 0288 00). 2. Has regulator been adjusted? YES NO YN 1. Adjust regulator (WP 0249 00). 2. Verify no faults found. 0023 00-1