Arcon 10310, Operating Manual

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21
How to change voltage.
Please follow the instructions on the Volt Changing Label (copy below):
1. Turn the machine off by moving the circuit breaker arm downward.
2.
WAIT TWO MINUTES!
It takes two minutes for the stored energy to discharge.
3. Disconnect the power plug if so equipped or shut off power supply to the machine.
4. Insert a flat-blade (common) screwdriver into the opening and locate the slot in the shaft. The
welders are pre-set for 480V at the factory and the blade will fit into the slot vertically. For 240V,
turn the screwdriver 90 degrees (1/4 turn)
counter-clockwise
. For 480V turn blade 90 degrees
(1/4 turn)
clockwise
. The horizontal position is for 240V, vertical slot position is for 480V.
5. MAINTENANCE
WARNING! Please see Chapter 1 regarding Safety
•
Turn the input power OFF before working on any Workhorse welder.
•
Do not touch electrically live parts or electrode with your skin or wet clothing.
•
Insulate yourself from work and ground.
•
Always wear dry insulating gloves.
•
Have an electrician install The Workhorse 300MS welder.
•
Have a certified repair facility perform all maintenance and repairs that require opening the
case.
If The Workhorse 300MS does not operate properly, stop work immediately and investigate the
cause of the malfunction.
Please note:
Opening up the case voids the Factory Warranty.
Maintenance should only be performed by an authorized ARCON Service Center, or by the
factory. Do not permit untrained persons to inspect, clean, or repair The Workhorse 300MS.
Please call the factory for the location of the Authorized ARCON Service Center nearest you.
Since there are no moving parts other than the fan in the power source, basic preventive
maintenance only involves keeping the welder clean and free from metallic dust. Periodically,
you should ask your Authorized Service Center to remove the cover from the case, remove
accumulated dust and dirt from the air passages and the interior components, using clean low-
pressure air. It is imperative that the air passages to the interior of the unit be free of dirt to
ensure adequate circulation of cooling air, especially over the rectifier bridge plates. The
frequency of cleaning will depend on the location of the unit, the amount of dust in the
atmosphere and number of operating hours.