Section V. OPERATION UNDER UNUSUAL CONDITIONS
Warning: Be extremely careful when the weld-
2-14. Operation in
Extreme Cold, Below
ing machine or surrounding area is damp or wet.
0F
Contact with a wet or damp unit can cause a
a. Check the water pipes and lines, verifying that
serious electrical shock or death.
they are not frozen.
2-18. Operation in
Salt Water Areas
b. If frozen, disconnect the water system from the
welding machine and use the welding machine for
a. Keep the welding machine protected as much as
metallic arc welding.
possible but do not block ventilation.
b. Check all connections, terminals, and fittings
2-15. Operation in
Extreme Heat
for corrosion.
a. Check operation of the fan motor. Inspect it
c. Keep welding machine covered when not in use.
frequently.
b. Check that the welding machine is well venti-
lated,
a. Keep snow off and out of the machine.
b. Shield the machine from blowing snow by
2-16. Operation in
Dusty or
Sandy Areas
erecting a protective panel or shelter, or taking any
a. Clean dust and sand from welding machine as
other reasonable measure.
often as necessary.
b. Protect machine from blowing dust and sand
tions.
by erecting a protective panel or shelter, or taking
any other reasonable measure.
c. Keep the welding machine covered when not in
a. Check carefully that the surrounding area is dry.
use.
b. Keep mud out of the machine.
c. Check that the unit is dry.
Warning: A wet or damp unit can cause a ser-
Conditions
ious electrical shock or death.
a. Keep rain from the welding machine using as
2-21. Operation at
High Altitude or
Below
much protection as possible.
Sea Level
b. Keep the welding machine covered when not in
a. Take normal precautions for cleanliness and
use.
keeping water, dust, mud, or snow, out of the weld-
c. Do not allow water to come in contact with the
ing machine.
high frequency and timer drawer. If it does, remove
b. There is no substantial difference in the oper-
the drawer and dry thoroughly before reinstalling it
ation of the welding machine at different altitudes.
in the machine.