Harbor Freight Tools DUAL MIG 93793 User Manual

Page 19

Page 19

For technical questions, please call 1-800-444-3353.

SKU 93793

nOte:

The workpieces should be

firmly held together and in position while

welding. Use clamps (not included)

to hold the workpieces so you can

concentrate on the job at hand. The

distance (if any) between the two

workpieces must be controlled properly

to allow the weld to hold both sides

securely while allowing the weld to

penetrate fully into the joint.
Set the desired welding current (35 to

140 amps) for the type of metal being

welded, using the Wire Speed Control

Knob (49) and Voltage Control Knob

(55).

(See Figure l.)
Make sure the Power Switch is in its

“OFF” position. Then plug Power Cord

of the Welder into a dedicated, 240 V~,

25 A circuit with delayed action type

circuit breaker or fuse.
While holding the Welding Torch (51),

with the Welding Wire clearly out of the

way of any grounded objects, turn the

Power Switch to its

“On” position.

Momentarily squeeze the Trigger (51e)

10.

of the Welding Torch (51) to test the wire

feed speed. If necessary, adjust the

speed by turning the Wire Speed Control

Knob (49).

(See Figure l.)

Orient yourself on the area to be welded,

11.

then place a Face Shield over your eyes.

12.

WarnInG! never look at

the ignited arc without

anSI-approved, arc-shaded,

eye protection in a full face

shield. permanent eye

damage or blindness can occur. Skin

burns can occur. never breathe arc

fumes. (See page 8.)

holding the Welding torch

Hold the Welding Torch (51) in one hand

13.

and the face shield in the other. If a

hands-free welding shield is used, then

both hands can be used to control the

Welding Torch.
The Welding Wire should be directed

14.

straight into the joint. This gives an

angle of 90 degrees (straight up and

down) for groove (end to end) welds,

and an angle of 45 degrees for fillet

(T-shaped) welds.

15. The end of the Welding Torch should be

tilted so that the

Welding Wire is

angled anywhere in

between straight on

and 15 degrees in

the direction of the

weld. The amount

of tilt is called the

“drag angle”.

(See Figure M.)
The Welding Wire

16.

should extend no more than 1/2” past the

Nozzle (51a) of the Welding Torch (51).

This distance is called “stickout”.

(See

Figure M.)
Set the Wire Speed and Voltage Control

17.

Knobs (49, 55) to the recommended start

settings as shown in the Weld Settings

Chart on the next page.

(See Figure n.)

Squeeze (and hold) the Trigger Switch

18.

(51e) of the Welding Torch (51) and

stroke the area to be welded with the

Welding Wire to ignite the arc.

Never tap the Welding Wire into the

welding surface to ignite the arc. This

will cause the Welding Wire to stick to

the workpiece.

FIGure M