Replacing The Wire Liner - Forney 242 MIG Manual De Operación

TIGHTEN NUT TO APPROPRIATE TIGHTNESS. EXCESSIVE PRESSURE STRAINS
THE WIRE FEEDING MOTOR. TOO LITTLE PRESSURE DOES NOT ALLOW THE
WIRE SPOOL TO STOP IMMEDIATELY.
• Loosen and lower the plastic knob (A) (Fig.5). Release the upper roll (B) of the feeder. Extract
the wire from the torch liner.
• When the wire is disconnected, grasp it with pliers so that it cannot exit from the spool. If
necessary, straighten it before inserting it in the wire input guide (C). Insert the wire on the
lower roll (D) and in the torch liner (E).
WARNING: Keep the torch straight when feeding a new wire through the liner,
make sure the wire is cut cleanly (no burrs or angles) and that at least 1/2" from the
end is straight (no curves). Failure to follow these instructions could cause damage
to the liner.
• Lower the upper roll (B) and place the knob (A). Tighten slightly. If tightened too much, the
wire gets locked and could cause motor damage. If not tightened enough, the rolls will not
feed the wire.
WHEN CHANGING THE WIRE DIAMETER BEING USED, OR REPLACING THE
WIRE FEED ROLL, BE SURE THAT THE CORRECT GROOVE FOR THE WIRE
DIAMETER SELECTED IS INSIDE, CLOSEST TO THE MACHINE. THE WIRE ROLL
IS DRIVEN BY THE INSIDE GROOVE. FEED ROLLS ARE MARKED ON THE SIDE
IDENTIFYING THE GROOVE NEAREST THAT SIDE.
• Close the side panel of the machine. Connect the power
supply cable to the outlet. Turn on the switch. 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.
Mount the contact tip and the nozzle.
WHEN CHECKING THE CORRECT EXIT OF THE WIRE
FROM THE TORCH DO NOT BRING YOUR FACE NEAR
THE TORCH. YOU MAY RUN THE RISK OF BEING
WOUNDED BY THE OUTGOING WIRE. DO NOT
BRING YOUR FINGERS CLOSE TO THE FEEDING
MECHANISM WHEN WORKING! THE ROLLS,
WHEN MOVING, MAY CRUSH THE FINGERS
PERIODICALLY, CHECK THE ROLLS. REPLACE THEM
WHEN THEY ARE WORN AND COMPROMISE THE
REGULAR FEEDING OF THE WIRE.

Replacing the Wire Liner

BEFORE PERFORMING THIS PROCEDURE, BE SURE THE GAS SUPPLY LINE AND
INPUT POWER CABLE ARE DISCONNECTED.
• Disconnect the torch from the machine.
• Place it on a flat surface and carefully remove the brass nut (1).
• Pull the liner out of the hose.
• Install the new liner and mount the brass nut (1) again.
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