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Operating Instructions - Klutch MIG 140i Owner's Manual

120v inverter mig welder
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High voltage danger from power source!
Consult a qualified electrician for proper installation of receptacle at the power source. This welder
must be grounded while in use to protect the operator from electrical shock. If you are not sure if
your outlet is properly grounded, have it checked by a qualified electrician. Do not cut off the
grounding prong or alter the plug in any way and do not use any adapter, other than the supplied
adapter, between the welder's power cord and the power source receptacle. Make sure the power
switch is OFF, then connect your welder's power cord to a properly grounded 230 VAC (220V -
240V), 60 HZ, single phase, 50-amp power source. If operating on 120V, attach the 120V Adapter
cord to the unit power cord and then connect the assembly to a properly grounded 120 VAC (110V-
130V), 60 Hz, single phase, 25-amp power source.
1. POWER SWITCH - The power switch supplies electrical current to the welder. Whenever the power
switch is in the ON position, the welding circuit is activated. ALWAYS turn the power switch to the
OFF position and unplug the welder before performing any maintenance.
2. HOLDING THE TORCH - The best way to hold the welding torch is the way it feels most comfortable
to you. While practicing using your new welder, you can experiment holding the torch in different
positions until you find the one that seems to work best for you.
3. POSITION OF THE TORCH TO THE WORK PIECE - There are two angles of the torch nozzle in
relation to the work piece that must be consider when welding.
a. Angle A can be varied but in most cases the optimum angle will be 60 degrees, the point
at which the torch angle is parallel to the work piece. If angle A is increased, penetration
will increase. If angle A is decreased, penetration will decrease also.
b. Angle B can be varied for two reasons: to improve the availability to see the arc in relation
to the weld puddle and to direct the force of the arc.
c. DISTANCE FROM THE WORK PIECE - If the nozzle is held off the work piece, the distance
between the nozzle and the work piece should be kept constant and should not exceed 1/4
inch or the arc may begin sputtering, signaling a loss in welding performance.
d. TUNING IN THE WIRE SPEED - This is one of the most important parts of wire welder
operation and must be done before starting each welding job or whenever the voltage
setting or wire diameter is changed.

Operating Instructions

Page 19 of 31

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