TM-9-2350-311-20-2
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5
TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS
DECEMBER 1993
TM-9-2350-311-20-2 - Page 164 of 828
TM 9–2350–311–20–2
3–53
Replace ELEVATION
CONTROL switch (para
8–12).
Repair wire from ELEVA-
TION CONTROL switch
to CAB POWER switch
(para 8–12).
1.
Reconnect harness at J2 connector of gunner’s
selector switch box assembly.
2.
Turn MASTER and CAB POWER switches to
ON.
3.
Place red multimeter lead on terminal 2 of
ELEVATION CONTROL switch and black lead to
ground.
4.
Check for voltage.
Is battery voltage present?
END OF TASK
CONTINUED FROM STEP G
yes
no
H
–+
ELEVATION
CONTROL
SWITCH
TERMINAL
GUNNER’S
SELECTOR
SWITCH BOX
ASSEMBLY
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