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 75 of 343
TM 9-2350-358-BD
3-25.
BOLT THREADS, DAMAGED - CONTINUED
Personnel/Time Required:
•
1 soldier
•
0.2 hour
Materials/Tools:
•
Nail or scnbe (scavenge from available source)
•
Nut (scavenge from available source)
Procedural Steps:
CAUTION
Dirt or metal particles on threads may further damage threaded
hole.
NOTE
Turning hardened steel nut onto bolt can help realign damaged
threads.
1.
Clean threads to remove dirt and metal particles using thread file or triangular-shaped file.
2.
Remove stuck metal particles using wire brush and nail or scribe.
3.
Remove burrs.
4.
Record BDAR action taken.
When mission is complete, as soon as practical, repair the equipment/system using
standard maintenance procedures.
3-26.
MECHANICAL LINKAGE ROD, DAMAGED
Mechanical linkage rods can bend or break from explosive shock, impact, or binding components.
Rods can be repaired
or improvised to regain usage of the system involved.
The cause of breakage must be determined and corrected.
Rods
or shafts that are bent must be straightened.
Place the rod/shaft on a hard flat surface and hit with a hammer to bend it
straight.
Broken rods/shafts can be splinted using scrap metal.
Option 1
Limitations:
Possible degraded mobility
Personnel/Time Required:
•
1-2 soldiers
•
Time determined by location and amount of damage.
Materials/Tools:
•
Plate stock (scavenge from available source)
•
Rod, welding (item 51, Appendix C)
3-30
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