Buffalo Tools HIT140, Assembly & Operating Instructions

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14
Operation
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 adapters between the welder’s power cord and the power
source receptacle. Connect your welder’s power cord to a properly grounded 120 VAC (110v-120v), 60Hz, single
phase, 20 amp power source.
1. Main Control Component
Power Knob - The power knob supplies electrical current to the welder. One knob controls the wire feed, output
current and output voltage.
2. Hold the MIG gun
The best way to hold the MIG gun is the way that feels most comfortable to you. While practicing to use your new
welder, experiment holding the torch in different positions until you find the one that seems to work best for you.
3. Position the MIG gun to the work piece
There are two angles of the MIG gun nozzle in relation to the work piece that must be considered when welding.
3.1. Angle A can be varied, but in most cases the optimum angle will be 60 degrees, the point at which the MIG gun
handle is parallel to the work piece. If angle A is increased, penetration will increase. If angle A is decreased,
penetration will decrease also.
3.2. Angle B can be varied for two reasons: to improve the ability to see the arc in relation to the weld puddle and to
direct the force of the arc.