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TM 9-2320-356-BD
B-5.
UNCONTROLLED AMPERAGE
General Information:
Battlefield repairs requiring welding can be accomplished by using auxiliary
generator (Little Joe) M88 recovery vehicle or a generator if a regular welder is
not available.
Welding will be difficult without amperage control.
Limitations:
o Possible degraded armor protection
Personnel/Time Required:
o 2 soldiers
o 1-3 hours
(24 V dc)
o Heavy gage cable
(2.0 gage minimum)
o Vise grips or clamps
o F u e l l i ne
o Welder helmet and gloves
o Welding rod, coat
hangers, or barbed wire
Other Options:
Weld using the vehicle battery power
Procedural Steps:
1.
Remove auxiliary generator from M88 recovery vehicle and place close to area to
be welded.
Connect heavy gage cables (+) and (-) output posts and tighten securely.
2.
Connect negative (-) cable to vehicle hull with clamp close to area to be
welded.
Connect welding rod to positive (+) cable with vise grip and insulate area
against heat with gloves,
rags, or several layers of dry paper.
WARNING
Use welder’s helmet to protect eyes and face
from arc.
Do not touch exposed cable or vise
grips with bare hands; metal will get very hot.
Do not perform this task in rain or on wet
ground because of possible electric shock hazard.
3.
Start auxiliary generator, strike arc, and weld. Use small diameter welding
rod for thin metal; use large welding rod for thick metal.
Continue to weld until
repair is satisfactory.
4.
Record the BDAR action taken.
When the mission is completed, as soon as
practicable, repair using standard maintenance procedures.
B-9
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