TM-9-2350-274-BD
M109/M110/M578 VEHICLES HOWITZER, MEDIUM, SELF-PROPELLED FULL-TRACKED
TECHNICAL MANUAL; OPERATORS, ORGANIZATIONAL DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
JANUARY 1984
TM-9-2350-274-BD - Page 132 of 219
TM 9-2350-274-BD
ARMAMENT AND FIRE CONTROL SYSTEM
Procedural Steps (Cont):
8. Use gas or arc to weld a continuous bead around the patch. Check weld for cracks or openings, and
repair if necessary.
Record the BDAR action taken. When The mission is completed, as soon as practicable, repair vehicle
using standard maintenance procedures.
10-5. GUN INTERCHANGEABILITY (M109 FAMILY).
General Information:
Gun tubes and mounts sustain damage easily in a combat environment, which may prevent fire missions.
A wrecker, block and tackle or improvised lifting device maybe used to assist interchanging them. The
155MM gun of the M 109 vehicle is interchangeable only within the M109 family. Use of the longer gun
tube on the M109 or a short tube on the M109A2, M109A3, M109A4 or M109A5 will eliminate the use of
the travel lock.
Interchangeability Information
Vehicle
Tube
Mount
M109
M126A1
M127
M109A1
M185
M127
M109A2
M185
M178
M109A3
M185
M178
M109A4
M185
M178
M109A5
M284
M182
Any tube or mount combination may be used but using the longer gun tube will change the vehicle’s
balance which may require the vehicle to move at slower speeds. Firing tables for the appropriate tube
length must also be used.
10-5.1. GUN INTERCHANGEABILITY (M110 FAMILY)
General Information:
Gun tubes and mounts sustain damage easily in a combat environment, which may prevent tire missions
A wrecker, block and tackle or improved lifting device may be used to assist interchanging them. The 8“
gun of the Ml 10 series vehicle is interchangeable only within the Ml 10 family.
Interchangeability
Vehicle
Tube
M107
M110
Information
Mount
M158
M158
M110A2
M201A2
M174
Any tube or mount combination may be used but using the longer gun tube will change the vehicle’s
balance which may require the vehicle to move at slower speeds. Firing tables for the appropriate tube
Iength must also be used.
.
10-8
Change 3
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