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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 accidentally damaged from con-
struction activities, moving vehicles, and other
hazards.
2. Drain the engine oil and refill with fresh 10W30
oil. Run the engine for about five minutes to cir-
culate oil to all the parts. See the MAINTE-
NANCE section of this 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.
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AIR VANTAGE® 500 KUBOTA machines cannot be
stacked.
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To achieve optimum engine performance the Air
Vantage 500 should be run in a level position. The
maximum angle of operation for the VMAC
Compressor and KUBOTA engine is 20 degrees con-
tinues in all directions and 30 degrees intermittent
(less than 10 minutes). When operating the welder at
an angle, provisions must be made for checking and
maintaining the oil level at the normal (FULL) oil
capacity. Also the effective fuel capacity will be slightly
less than the specified 25 gal.(94.6 ltrs.).
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The welder should be located to provide an unrestrict-
ed 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 prop-
erly vented to an outside area.
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The VRD feature provides additional safety in the CC-Stick
mode especially in an environment with a higher risk of
electric shock such as wet areas and hot humid sweaty
conditions.
The VRD reduces the OCV (Open Circuit Voltage) at the
welding output terminals while not welding to less than 13V
DC when the resistance of the output circuit is above 200Ω
(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 con-
nections 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 control panel by removing 4 front
panel screws.
(See Figure A.1)
• Place the VRD switch in the “On” or “Off” position.
(See Figure A.1)
With the VRD switch in the “On” position, the VRD lights
are enabled.