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SAFETY PRECAUTIONS
WARNING
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts or electrode with skin or wet clothing.
•Insulate yourself from work and ground.
•Always wear dry insulating gloves.
FUMES AND GASES can be danger-
ous.
• Keep your head out of fumes.
• Use ventilation or exhaust to remove
fumes from breathing zone.
WELDING SPARKS can cause fire or 
explosion.
•Keep flammable material away.
•Do not weld on closed containers.
ARC RAYS can burn eyes and skin.
•Wear eye, ear and body protection.
See additional warning information at front of this operator’s manual.
The following should always be observed when oper- ating any Magnum Cooler:
-Never operate the Cooler with case off.
-Immersion in water around electrical lines can cause electrical shock.
-Never place fingers into openings of Cooler. Moving parts can injure.
-Unplug the Cooler before filling the reservoir.
-Never operate the Cooler with the reservoir fill cap off.
OPERATING PRECAUTIONS
The following should always be observed when oper- ating any Magnum Cooler:
- Check the Magnum system monitor to verify ade- quate flow for the applicationr.
-Check the reservoir daily.
-Keep the reservoir full especially after changing any water lines.
- Even when using the Magnum Cooler in an “on- demand” application, the power to the Cooler should be turned off when welding is not taking place for a long period of time.
-Be certain that the Cooler is on (power switch in the “” position) before beginning to weld, especially when using the Cooler in the demand system.
-Never operate the Cooler with the reservoir fill cap removed.
-Avoid placing the Cooler near areas of extreme heat.
-Avoid placing the Cooler near a flux hopper or an area where dust
-Avoid kinking or putting sharp bends in any water lines.
-Keep all water lines clean.
LIGHTED POWER SWITCH
A long life, lighted power switch is located at the left side on the control panel. When switched “ON”, the switch will be pressed toward the “” symbol.
Because it will only light when the Cooler is pumping coolant, the switch serves as an indicator for the Magnum system monitor. For proper operation, the switch should beam steadily when coolant is pumping and remain unlit when flow is stopped. Reference the Magnum system monitor sections for an explanation.
TURNING THE SYSTEM ON
After filling the reservoir and connecting the coolant hoses to the Magnum Cooler per the Installation Sections, plug the unit into an electrical receptacle for
* Not available at time of printing.
MAGNUM COOLER