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 18 of 343
TM 9-2350-358-BD
SECTION II.
STANDARDS AND PRACTICES
1-6.
BDAR CHARACTERISTICS
BDAR requires simplicity, speed, and effectiveness.
Some BDAR procedures include repair techniques that violate
standard peacetime maintenance practices in a combat emergency situation, greater risks are necessary and acceptable.
1-7.
WAIVER OF PRECAUTIONS
Under combat conditions, BDAR may be performed on M109A6 howitzers which are fueled or armed.
Other similar
precautions may be waived at the discretion of the commander.
1-8.
OPERATING CHARACTERISTICS
The Minimum Functional Combat Capability (MFCC) criteria for the M109A6 howitzer are as follows:
NOTE
These criteria may be waived for recovery or if the tactical situation
demands otherwise (combat emergency capable).
a.
Armament and Fire Control.
(1)
Main gun must have recoil mechanism, equilibrator, and cannon assembly.
(2)
Must have an operational fire control device (primary or secondary).
b.
Mobility.
(1)
Must have operational track on both sides of the howitzer.
(2)
May be missing roadwheels with the following stipulations.
(a)
May not be missing more than a total of two individual roadwheels on each side.
(b)
The first, second, and last roadwheel stations must each have complete sets of roadwheels.
(c)
There must be a complete set of roadwheels between any two incomplete roadwheel stations.
(3)
Drive train must be functional and must be capable of reverse and at least one forward gear.
(4)
Power train performance degradation cannot exceed that level which would cause the howitzer to
be incapable of traveling 10 miles per hour (mph) on a level, unimproved road.
(5)
Must be capable of normal braking/stopping from 10 mph and brakes must hold on a 30 percent
slope.
(6)
Vehicle steering system must be operational.
c.
Communications.
Must have intercom between chief-of-section and driver.
1-4
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