Safety Precautions; Location; Mounting - Lincoln Electric LF-72/74 Service Manual

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SAFETY PRECAUTION
ELECTRIC SHOCK can kill.
• Turn the input power OFF at the
welding power source before instal-
lation or changing drive rolls and/or
guides.
• Do not touch electrically live parts.
• When inching with the gun trigger, electrode
and drive mechanism are "hot" to work and
ground and could remain energized several sec-
onds after the gun trigger is released.
• Welding power source must be connected to
system ground per the National Electrical Code
or any applicable local codes.
• Only qualified personnel should perform main-
tenance work.
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LOCATION

The LF-74 may be placed on a bench, mounted on top
of a welding power source or assembled to an appro-
priate boom.
Place the LF-74 in a clean and dry location.
Do not stack the LF-74.
INSTALLATION

MOUNTING

For location and size, LF-74 Bench Model Rear
Mounting Holes (See Figure AA.1) and for Bottom
Mounting Holes (See Figure AA.2).
5/8-16 THREADS 5/8-16 THREADS
(4 PLACES) (4 PLACES)
1/4-20 1/4-20 THREADS THREADS
(4 PLACES) (4 PLACES)
5/16-18 THREADS 5/16-18 THREADS
(4 PLACES) (4 PLACES)
LF-72/74
FIGURE AA.1
FIGURE AA.2
MOUNTING FEET MOUNTING FEET
SECURED WITH SECURED WITH
#10-24 SCREWS #10-24 SCREWS
(4 PLACES) (4 PLACES)
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