PROCRAFT 511464 Operating Instructions Manual Download Page 9

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Page 9

DUTY CYCLE

Duty Cycle

is the equipment specifications which defines the

number of minutes within a 10 minute period that a piece of

equipment can safely operate.

ECO (MOSFET) ARC machines have a 35% duty cycle at

maximum welding output,

which means that it continuously

operates for 3.5 minutes at maximum output during a 10

minute period.

CAUTION:

Failure to observe the duty cycle limitations of

this TIG MACHINE can easily damage this equipment, and

will void warranty.

UNPACKING

When unpacking, checks to make sure the following parts

are included.
Inverter welding machine with Ground cable with Clamp
MMA welding cable with clamp If any parts are missing or

broken, please call EACO ELECTRIC at the number on the

cover of this manual.

Preparing Your Work Area

1. You must have a sturdy work table that is open below the

area you are welding. Molten slag will be blown through the

work metal, and must be able to fall away freely
2. Your work table must allow the work metal to be firmly

clamped to prevent it accidentally falling or moving.
The floor and surrounding area of your work site must not

be flammable. A clean cement floor is recommended.
1. The cutting process will eject molten metal slag onto the

floor, and it will scatter for 8-10 feet or more in any direction.

Have an adequate fire extinguisher available if needed.

ASSEMBLY

Grounding the tool

Ground screw (1)
1. Attach a ground wire (not supplied) to the screw in the

lower the back of the machine. Connect the other end of the

wire to an appropriate ground, such as a steel workbench,

steel biding member or grounding electrode.

Connector Instruction

MMA Welding cable and TIG torch socket (1)
Ground socket (1)

1. Ground socket:

Plug ground cable to this socket.

2. MMA Welding cable socket:

Connect MMA Welding cable

or the TIG cable plug to this socket

INSTALLATION

1. Connect welding tongs with output stud terminal (+)
2. Connect ground clamp with output terminal (-)
3. Connect the protection grounding cable.
4. Turn on the distributing box and the switch on the power

source on the front panel.
5. Start welding.
6. Finish welding.
7. Turn off the switch on front.
8. Turn off the switch of distributing box

OPERATION

Note: Before beginning, please read and understand all

the safety precautions staring on page 1 and especially the

section “Specific Safety Rules” starting on page 3.

Put the metal to be welded on the metal weeding-cutting

table. Ensure the metals to
1. be welded are clean, so good welding efficiency can be

promised.
2. Place the MMA welding unit no closer than six feet from

the work piece to be welded
3. Connect the MMA torch control, Twist to lock in place.
4. Plug in the Grounding Cable into the Ground Connector

on the lower left of the unit front. Twist to lock.
5. Place the metal portion of the welding rod inside the jaws

of the Electrode Clamp. Welding rod types vary for welding

different metals.
6. Hold the MMA torch and orient yourself to one side of

the area to be welded, and move the Welding Helmet Face

Shield (not included, see page 4 item 7) over your eyes.
7. Hold the MMA welding rod down and tilt the rod forward.
8. Stroke the work piece lightly to ignite the arc. Does not

strike like a match? Never tap the electrode wire to ignite the

arc; it will damage the rod.
9. When the arc ignites, tilt the electrode forward and hold it

near the work piece.
If too much current is drawn from the welder; the Thermal

Overload protector will 1. activate, the Overload indicator or

will light, and the welder will turn off until it cools down. It

will automatically reset.

Welding current

Welding current level is determined by the size of electrode

- the normal operating range and current are recommended

in the manual. Typical operating ranges for a selection of

electrode sizes are illustrated in the table. As a rule of thumb

when selecting a suitable current level, an electrode will