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14
Continued set up for MIG Welding with RAZOR 250K
(9) Align the wire into the groove of the drive roller and close down the top roller making sure the wire is in
the groove of the bottom drive roller, lock the pressure arm into place. Apply a medium amount of
pressure to the drive roller.
(10) Remove the gas nozzle and contact tip from the torch neck,
(11) Press and hold the inch button to feed the wire through to the torch neck, release the inch button when
the wire exits the torch neck.
(12) Fit the correct sized contact tip and feed the wire through it, screw the contact tip into the tip holder of
the torch head and nip it up tightly.
(13) Fit the gas nozzle to the torch head.
(14) Carefully open the gas cylinder valve and set the ow rate to between 11-21cfh.
(15) Set the welding parameters using the wire feed and voltage control knobs.
(16) Using the Burn Back control set the amount of wire to ‘burn back’ after you release the torch
trigger. This prevents the wire becoming stuck in the weld pool when nishing the weld.
(10) Remove the gas nozzle and contact tip
from the front end of the mig torch.
(13) Fit the gas nozzle to the torch head.
(15) Set welding parameters using the
voltage and wire feed controls.
(9) Close down the top roller bracket and clip
the pressure arm into place. Apply a medium
amount of pressure to the drive roller
(16) Adjust the burn back control to prevent the
wire sticking in the weld pool. Burn back control
is located above the wire feed motor
(11) Press and hold the inch wire button to
feed the wire down the torch cable through
to the torch head.
(12) Fit the correct size contact tip over the
wire and fasten tightly into the tip holder.
(14) Carefully open the valve of the gas
cylinder, set the ow to 11-21 cfh.
WARNING:
Disconnect the Electrode Holder cable from the machine before using MIG function. If cable is not disconnected welding voltage is pres-
ent and can cause arcing or ash.
WARNING:
Ensure that an approved welding helmet, protective clothing and gloves are use for all welding operations
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