TM-9-2350-247-20-1 Unit Maintenance Manual Volume 1 M548A1 M548A3 Tracked Cargo Carrier Download

Page 203 of 870

TM 9-2350-247-20-1 200 AMP OVER VOLTAGE TROUBLESHOOTING (M548A3) 0027 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) Multimeter (WP 0541 00, Item 29) Generator Test Kit (WP 0541 00, Item 53) 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 TM 9-6140-200-14 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) T 1. Turn MASTER SWITCH ON. 2. Measure battery voltage by placing red lead (1) in positive socket of NATO plug (2) on auxiliary power (slave) receptacle (3). Touch black negative lead(4) to outside of NATO plug on receptacle. 3. Adjust 200 amp voltage regulator to lowest setting (WP 0249 00). 4. Start engine (see your -10) and accelerate. 5. Does voltage climb to 32 to 34 volts and suddenly drop to battery voltage? YES NO GO TO BY (PAGE 0027 00-3) 0027 00-1