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 TM 55-1925-273-10-1
OPERATOR'S MANUAL
INLAND AND COASTAL LARGE TUG (LT)
OPERATION UNDER USUAL CONDITIONS
WORKSHOP EQUIPMENT
INITIAL SETUP:
Materials/Parts:
Personnel Required:
Gloves, Leather (Item 267, Table 3, WP 0163 00,
One Watercraft Engineer, 88L
Volume 2)
Helmet, Welder's (Item 293, Table 3, WP 0163 00,
References:
Volume 2)
WP 0163 00 (volume 2)
GENERAL
This work package describes the operation of the arc welder, the drill press, and the bench grinder. The operating procedures
describe how to power up, operate, and shut down these items.
ARC WELDER
WARNING
Electric shock can kill. Electrodes and work area (or ground) are "hot" when the welder is
on. Never touch electrodes to body or clothing. Wear dry gloves. Never weld in wet or
damp areas. Ensure that all the connections are tight and clean. Fumes and gases can be
dangerous. Keep away from fumes. Work in well ventilated area. Welding on galvanized
steel, lead or cadmium produces toxic fumes. Ensure adequate ventilation. DO NOT weld
in areas where chlorinated hydrocarbon vapors from degreasing, cleaning or spraying
chemicals are present. These are highly toxic gases. Death could result. Arc rays can injure
eyes and burn skin. Wear proper protection for eyes and skin to prevent injury. Wearing of
contact lenses during welding can fuse the eye and lens when welding. DO NOT wear
contact lenses when welding. Serious eye injury could result. Welding produces heat and
sparks; keep a fire extinguisher at hand in the event of a fire during welding. Welder and
electrodes are "live" when the power switch is ON. Observe safety precautions or injury
could result.
1.
At 440V power panel No. 5, set the WELDING MACHINE. circuit breaker (figure 1, item 1) to ON.
2.
To prepare to weld at the arc welder:
a.
Set the RANGE SELECTOR switch (figure 2, item 1) to the desired amperage.
b.
Set the OUTPUT SELECTOR switch (figure 2, item 2) to the DC position.
0092 00-1
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