Lincoln Electric IM812-A - Manual (Page 9)

A-2 INSTALLATION
LN-35
A-2
ELECTRIC SHOCK can kill.
• Do not operate with covers
removed.
• Turn off power source before
installing or servicing.
• Do not touch electrically
hot parts.
• Turn the input power to the
welding power source off at the
fuse box before working in the
terminal strip.
• Only qualified personnel should
install, use or service this
equipment.
DC-250
a. Connect a jumper from 2 to 4 on the power source
terminal strip so the output will be energized when
the DC-250 is turned on.
b. Connect electrode cable to the “Innershield/
GMAW” output terminal of polarity required by
electrode. Connect work lead to other
“Innershield/GMAW” output terminal.
c. Place “Set to CV Electrode Cable Polarity” switch
at appropriate position.
d. Place power source toggle switch in “Output
Control at DC-250” position, unless a Remote
Control is connected to 75, 76 and 77 on the DC-
250 terminal strip.
e. Place mode switch in “Innershield GMAW (CV)”
position. Set CV arc control to “2” (or “NORMAL”
on some machines). Initially set the output
control on “7”.
DC-400 AND CV-400
a. Connect a jumper from 2 to 4 on the power
source terminal strip so the output will be
energized when the power source is turned on.
NOTE: DC-400 machines above Code 9200 have
an output toggle switch to perform this function.
b. Connect the electrode cable to the output
terminal of polarity required by electrode.
Connect work lead to other output terminal.
SAFETY PRECAUTIONS
The electrode circuit (including welding wire, wire
drive and welding gun) is electrically hot when the
welding power source is on. The gun trigger controls
wire feed only.
Disconnect or shut off welding power source before
making connections or installations to the LN-35.
The LN-35 should be positioned upright on a
horizontal surface.
ELECTRIC SHOCK can kill.
• Do not touch metal portions
of the LN-35 clamp when
welding power source is on.
POWER SOURCE CONNECTION
The LN-35 can be used with any DC welding power
source. A constant voltage power source is
recommended; however, the LN-35 can also be used
with a constant current power source as long as the
open circuit voltage is less than 110V DC.
The power source output will be electrically “hot” at
all times when the power source is turned on.
See the power source instruction manual for proper
power source connections and setting required.
WARNING
WARNING
WARNING