TM-9-2350-358-BD
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A6
TECHNICAL MANUAL; OPERATOR’S, UNIT, AND DIRECT SUPPORT SUPPORT MAINTENANCE
MARCH 1994
TM-9-2350-358-BD - Page 287 of 343
TM 9-2350-358-BD
13-12. ISOLATION OF NONESSENTIAL SYSTEMS (IF-146/VRC FILTER) - CONTINUED
4.
Connect the power cable directly to the driver’s intercom box C-2298.
5.
Record BDAR action taken.
When mission is complete, as soon as practical, repair the equipment/system using
standard maintenance procedures.
SECTION IV.
INTERCOM SYSTEM
13-13. GENERAL
The intercom system allows voice communications between the chief of section and all members of the crew to render this
vehicle fully mission capable.
The chief of section must have communication with the driver.
13-14. INTERCOM SYSTEM, INOPERATIVE
General Information:
This procedure restores communications between the chief of section and all members of the crew and driver.
Limitations:
•
If the AM-1780 is nonoperational, the radio systems will not be usable through the intercom.
•
If telephone cable WD-1/TT is routed to the driver's station, the cab cannot be traversed without cutting the cable.
Personnel/Time Required:
•
1 soldier
•
0.2 hour
Materials/Tools:
•
If AM-1780 is nonoperational, one TA-312/PT or TA-1/PT field telephone for each station where requirement for
intercom exists (scavenge from available source)
•
If AM-1780 is operational, one TA-312/PT or TA-1/PT field telephone for each nonoperational C-2298 control box
(scavenge from available source)
•
Cable, telephone, WD-1/TT, 10 to 15 feet long (scavenge from available source)
13-19
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