Draper Expert 70052, Instructions Manual

– 9 –

Argon

Gas

5 

FIG.

6 

FIG.

7.3  TIG WELDING FOOT PEDAL 

CURRENT CONTROL – FIG.7

The foot pedal 

(10) 

allows the welding current to be 

adjusted remotely from the main welding unit.
To connect the foot pedal:

− Plug both the 6 pin 

(3.1) 

and 2 pin 

(2.1) 

connector 

plugs of the foot pedal into the corresponding ports 

(3) 

/

 (2) 

located on the machine (the 2 pin plug 

connector of the TIG torch 

(7.1) 

becomes redundant 

and can be left hanging loose).

Operation:

− Set the dial 

(10.1) 

located on the side of the pedal to 

the desired current output.

− Depress the foot pedal to activate. The resulting 

pressure placed on the pedal controls the level of 

current incrementally until the maximum level, set by 

the dial is reached.

7 

FIG.

7.4  MMA (MANUAL METAL ARC) 

SETUP – FIG.8

− To attach the electrode holder 

(9)

 to the front panel, 

insert the plug into the connection port marked ‘

’ 

(1)

 and twist to lock. 

− Attach the earth clamp 

(8)

 into the connection port 

marked ‘

’ 

(5)

 – plug in and twist to lock.

8 

FIG.

7.5  MMA/ARC WELDING FILLER ROD 

(ELECTRODE) SELECTION – FIG.9

The correct selection of electrode size and type will vary 

for each application dependent upon material thickness, 

material type, amperage and equipment, however as a 

guide the figures below provide an indication.

MMA Electrode

Material 

Thickness

Amp Range

≤

1.6mm

1-1.5mm

≤

50A

2.0mm

1.2-3mm

45 - 75A

2.5mm

2-5mm

75 - 110A

3.25mm

4-8mm

100 - 150A

(1)

(2)

(3)

(4)

(5)

(7.1)

(7)

(8)

(3.1)

(10.1)

(10)

(2.1)

(8)

(9)