TM 5-3431-225-15
cated behind front access door, is provided for
electrocution to personnel coming in contact
automatic control of weld current time.
with it.
ing machine.
Warning: Before operating the welding ma-
chine, see that the ground terminal lug is con-
nected through the input cable or by separate
conductor to the power system ground. An un-
grounded welding machine can cause death by
Section V. OPERATION UNDER UNUSUAL CONDITIONS
b. Keep the welding machine covered when
2-14. Operation in
Extreme Cold
(Below 0 F)
not in use.
a. Frequently inspect for frozen water pipes
or lines.
c. If water comes in contact with the high fre-
b. If freezing is evident, disconnect the water
quency panel, remove the panel and dry through-
system from the welding machine and use only
ly before installing it in the welding machine.
for regular arc welding,
Warning: Be extremely careful when the
unit or surrounding area is damp or wet. Com-
2-15. Operation in
Extreme Heat
ing in contact with a wet or damp unit can cause
Make sure the welding machine has adequate
a serious electrical shock or death.
ventilation.
2-16. Operation in
Dusty or
Sandy Areas
2-18. Operation in
Salt Water Areas
a. Keep dust and sand cleaned from welding
machine as much as possible.
a. Keep the welding machine protected as
b. Keep welding machine covered when not
much as possible but do not block ventilation.
in use.
b. Inspect all connections, terminals, and fit-
2-17. Operation Under Rainy or Humid
tings for corrosion.
Conditions
c. Keep welding machine covered when not
a. provide as much protection as possible to
keep rain from welding machine.
in use.