TM-9-2350-311-34-1
HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS: HOWITZER, MEDIUM, SELF-PROPELLED, 155MM
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
SEPTEMBER 1994
TM-9-2350-311-34-1 - Page 55 of 352
TM 9-2350-311-34-1
g. ELECTRICAL SYSTEM
ELECTRICAL COMPONENTS INOPERATIVE,
DEFECTIVE RECTIFIER
Tools
Multimeter (item 16, Appx C)
NOTE
Rectifier repair information for M1 09A2/M109A3
Howitzers is covered in paragraph 7-15 and repair
information for M1 09A4/M109A5 Howitzers is
covered in paragraph 7-16. Refer toTM9-4910-571 -
12&P, DA PAM 750-33, and TM 9-6140-200-14 when
troubleshooting electrical system.
1. Place red lead of multimeter on positive
terminal and black lead of multimeter to
negative terminal of diode. Check for
continuity.
2. For triple terminal diodes, repeat this step
for both negative diodes.
Is continuity present?
Replace diode.
1. Place red lead of multimeter in negative
terminal diode and black lead of multimeter
to positive terminal of diode. Multimeter
should read infinity (00). If reading is not 00,
replace diode.
2. For triple diodes, repeat this step for both
negative diodes.
END OF TASK
3-15/(3-16 blank)
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