Lincoln Electric IM874 VANTAGE 300 - Manual (Page 14)

CABLE INSTALLATION
Install the welding cables to your VANTAGE 300 as
follows.
1. The engine must be OFF to install welding cables.
2. Remove the flanged nuts from the output terminals
.
3. Connect the electrode holder and work cables to the
weld output terminals. The terminals are identified
on the case front.
4. Tighten the flanged nuts securely.
5. Be certain that the metal piece you are welding (the
“work”) is properly connected to the work clamp and
cable.
6. Check and tighten the connections periodically.
• Loose connections will cause the output termi-
nals to overheat. The terminals may eventually
melt.
• Do not cross the welding cables at the output ter-
minal connection. Keep the cables isolated and
separate from one another.
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CAUTION
A-6 INSTALLATION
VANTAGE 300
A-6
When this welder is mounted on a truck or trailer, its
frame must be electrically bonded to the metal frame
of the vehicle. Use a #8 or larger copper wire connect-
ed between the machine grounding stud and the
frame of the vehicle. When this engine driven welder
is connected to premises wiring such as that in a
home or shop, its frame must be connected to the sys-
tem earth ground. See further connection instructions
in the section entitled "Standby Power Connections"
as well as the article on grounding in the latest
National Electrical Code and the local code.
In general, if the machine is to be grounded, it should
be connected with a #8 or larger copper wire to a solid
earth ground such as a metal water pipe going into the
ground for at least ten feet and having no insulated
joints, or to the metal framework of a building which
has been effectively grounded.
The National Electrical Code lists a number of alter-
nate means of grounding electrical equipment. A
machine grounding stud marked with the symbol
is provided on the front of the welder.
WELDING TERMINALS
The VANTAGE 300 is equipped with a toggle switch
for selecting "hot" welding terminal when in the "WELD
TERMINALS ON" position or "cold" welding terminal
when in the "REMOTELY CONTROLLED" position.
WELDING OUTPUT CABLES
With the engine off connect the electrode and work
cables to the output studs. The welding process dic-
tates the polarity of the electrode cable. These con-
nections should be checked periodically and tightened
with a 3/4" wrench.
Table A.1 lists recommended cable sizes and lengths
for rated current and duty cycle. Length refers to the
distance from the welder to the work and back to the
welder. Cable diameters are increased for long cable
lengths to reduce voltage drops.
TABLE A.1
TOTAL COMBINED LENGTH OF
ELECTRODE AND WORK CABLES
Cable Length
0-100Ft. (0-30 meters)
100-150 Ft. (30-46 meters)
150-200 Ft. (46-61 meters)
Cable Size for
400 Amps
60% Duty Cycle
2 / 0 AWG
2 / 0 AWG
3 / 0 AWG