Lincoln Electric VANTAGE 520 SD Operator's Manual page 10

VANTAGE ® 520 SD
SAFETY PRECAUTIONS
Do not attempt to use this equipment until you have thor-
oughly read all operating and maintenance manuals supplied
with your machine. They include important safety precau-
tions, detailed engine starting, operating and maintenance
instructions and parts lists.
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts such as
output terminals or internal wiring.
• Insulate yourself from the work and ground.
• Always wear dry insulating gloves.
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ENGINE EXHAUST can kill.
• Use in open, well ventilated areas or vent
exhaust outside
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MOVING PARTS can injure.
• Do not operate with doors open or guards off.
• Stop engine before servicing.
• Keep away from moving parts
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Only qualified personnel should install, use or service this
equipment.
VRD (VOLTAGE REDUCTION DEVICE)
The VRD reduces the OCV (Open Circuit Voltage) at the welding output
terminals while not welding to less than 30VDC when the resistance of
the output circuit is above 200 (ohms).
The VRD requires that the welding cable connections be kept in good
electrical condition because poor connections will contribute to poor
starting. Having good electrical connections also limits the possibility of
other safety issues such as heat-generated damage, burns and fires.
The machine is shipped with the VRD switch in the "OFF" position. To
turn it "On" or "Off":
• Turn the engine "Off".
• Disconnect the negative battery cable.
• Lower the Front panel by removing 4 side panel screws. (See Figure
A.1)
• Place the VRD switch in the "On" or "Off" position. (See Figure A.1)
WARNING
With the VRD switch in the "OFF" position, the VRD lights are deactivated.
REMOVE 4 FRONT
PANEL SCREWS
TO ACCESS (VRD)
SWITCH
FRONT PANEL
ROTATES AWAY FROM
THE FRONT PART OF WELDER
LOCATION AND VENTILATION
The welder should be located to provide an unrestricted flow of
clean, cool air to the cooling air inlets and to avoid restricting the
cooling air outlets. Also, locate the welder so that the engine
exhaust fumes are properly vented to an outside area.
DO NOT MOUNT OVER COMBUSTIBLE SURFACES
Where there is a combustible surface directly under station-
ary or fixed electrical equipment, that surface should be cov-
ered with a steel plate at least .06"(1.6mm) thick, which
should extend not less than 5.90"(150mm) beyond the equip-
ment on all sides.
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STORING
1. Store the machine in a cool, dry place when it is not in use.
Protect it from dust and dirt. Keep it where it can't be acciden-
tally damaged from construction activities, moving vehicles,
and other hazards.
2. Drain the engine oil and refill with fresh oil. Run the engine for
about five minutes to circulate oil to all the parts. See the
ENGINE OPERATION section manual for details on changing oil.
3. Remove the battery, recharge it, and adjust the electrolyte
level. Store the battery in a dry, dark place.
STACKING
VANTAGE ® 520 SD machines cannot be stacked.
A-2
INSTALLATION
FIGURE A.1
ON / OFF VRD SWITCH