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Mma-welding, Storage, Welding – Kemppi Promig 200 ML User Manual

Page 13: Choosing welding polarity, Earthing, Welding operation

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PROMIG 200ML/0520 – 13

© KEMPPI OY

4. Select welding settings control mode local control, gun control or remote control with

selection switch.

5. Set the welding power and arc lenght with the corresponding potentiometers. Values are

shown in displays.

6. If necessary, set welding dynamics from the potentiometer.

7. Start welding and adjust welding power and arc length if needed.

3.4.4. MMA-welding

1. Select welding process MMA with selection switch.

2. Select welding settings control mode local control, gun control or remote control with

selection switch.

3. Set the welding current with the potentiometer. Values are shown in displays.

4. If necessary, set welding dynamics from the potentiometer.

5. Start welding and adjust welding current if needed.

3.5. STORAGE

The machine must be stored in a clean and dry room. Protect the machine from rain and keep it

away from direct sunshine in places where temperature exceeds +25 °C. Check that there is free

space in front of and behind the machine for air circulation.

3.6. WELDING

Welding fumes may cause injury, take care of sufficient ventilation during welding!

Never watch the arc without a proper face shield designed for arc welding! Protect

yourself and the surroundings for welding arc and hot spatters!

3.6.1. Choosing welding polarity

You can change the welding polarity for filler wire by interchanging the welding and return curren

cable connections.

3.6.2. Earthing

If possible, always fasten the earth clamp of return current cable directly on work piece.

1. Clean contact surface from paint and rust.

2. Fasten clamp properly, so that contact surface is as large as possible.

3. Check that clamp is fastened firmly.

3.6.3. Welding operation

See also 3.4. Selecting and adjusting welding settings. Note! It is recommended to make a test

weld before starting to weld the actual work piece.

Welding operation can be started after the necessary selections and adjustments have been made.

The operation starts when welding wire touches work piece and gun switch is pressed. Welding

arc ignites, shielding gas starts to flow and wire feed mechanism inches welding wire. If necessary

adjust wire feed and voltage, or in synergic welding welding power. Readjust until you have found

suitable adjustments.