Ferax 1600 m gng Instruction Manual - 6.0 Mig Welding

34

WARNING: The torch must be kept straight. When

feeding a new wire through the liner, make sure the

wire is cut cleanly (no burrs or angles) and at least

5cm of the end is straight (no curves). Failure to fol-

low these instructions could lead to the wire dama-

ging the liner.

5. Lower the upper roll (N) and the knob (L) and

tighten slightly (if there is too much pressure the

wire gets locked and the motor could get damaged,

if too loose the wire will not be fed by the rolls).

NOTE: The roll (M) has two different grooves. The

machine is set for the diameter of the wire supplied

with it. For No-Gas welding the roll must be rever-

sed in order to have the correct groove for the flux-

cored wire diameter .

6. Connect the power supply cable to the 230V 50Hz

line and turn on the switch, then press the torch

switch. The wire fed by the wire feeding motor at

variable speed must slide through the liner; when it

exits from the torch neck, release the torch switch,

turn off the machine and mount the contact tip and

the nozzle.

6.0 MIG WELDING

In MIG welding (Metal Inert Gas) a continuously fed

metal electrode is melted into a welding pool at con-

stant and controlled speed. The wire is connected to a

constant voltage pole while the workpiece is connected

to the other pole. When the wire is fed and touches the

workpiece, an electric arc is produced. The arc melts

the wire that is deposited on the workpiece.

7.0 GAS WELDING

In order to weld Stainless steel or Aluminium the

power source must be set for gas welding *.

This operation is very simple, you only need the fol-

lowing spare parts and items (please contact your wel-

ding supplier):

1. Wire – All these power sources work with 5Kg-wire

spools (wire diameter 0.6mm or 0.8mm).

2. Tip – The tip is correct when it matches with the

wire diameter. (Note: when using aluminium wire of

diameter 0.8mm the tip must be 1.0mm)

3. Gas – You can buy disposable gas cylinders from

the local distributor or from a reseller of spare parts,

while rechargeable gas cylinders can be supplied by

the local re-seller of spare parts.

4. Gas regulators – You can buy the regulator suited

for the gas cylinder from the local distributor or

from a re-seller of spare parts for welding equip-

ment. Note: As first thing you should decide if you

want to use rechargeable or disposable gas cylinders

because this will affect the choice of the regulator

8.0 PREPARATION FOR

WELDING

1. Connect the welding machine to the 230V 50/60Hz

line;

2. IMPORTANT: make sure that the polarity is

correctly set. For GAS welding the ground cable

must be connected to the negative terminal (-),

while the torch must be connected to the positive

terminal (+) (FIG.4) *.

3. Connect the ground clamp to the workpiece and

make sure that the contact is good;

4. Make sure that the wire-feeding roll is correctly

positioned (groove matching the wire diameter).

Use the groove marked by 0.9mm for all the wires

with diameter 0.8mm and the groove marked by

0.7mm for all the wires of diameter 0.6mm. In order

to change the groove loosen the screw that locks the

roll, turn the roll and fix it again with the screw;

5. Open the gas using the pressure regulator and adjust

the flow rate.

(NOTE: The gas flow may need adjustments in

order to obtain a better welding, this depends on the

type and thickness of the metal used, anyway the

gas flow should be maintained as low as possible).

FIG. 4

9.0 CONNECTION OF THE GAS

CYLINDER AND REGULATOR

Connect the FERAX regulator to the  gas cylinder and

the plastic tube to the regulator (regulator and gas

cylinder are not enclosed with the welding set). When

chosen of regulator and gas cylinder, please contact a

dealer.