Wire Loading - Forney 270 MIG Manual De Instrucciones

Wire Loading

Your MIG welder is designed to accept either 8" or 12" wire spools of mild steel, stainless steel or
aluminum according to the type of metal you wish to weld. Wire spools aren't supplied with the unit
and must be purchased separately.
ENSURE GAS AND ELECTRICAL SUPPLIES ARE DISCONNECTED. Before proceeding,
remove the nozzle and the contact tip from the torch.
• Open the side panel. Loosen the nut (Fig.4) (A) of the spool holder (Position 1) (brake drum).
Remove the spacer (E). In the case you are replacing the wire spool, extract it by pushing the
snap tongue (D).
• Remove the plastic protection from the spool. Place spool on the spool holder. Mount the
spacer again (only for 8" spools) and tighten the lock nut.
Your MIG welder can also accept 4" wire spools. To mount 4" spools:
• Remove the wire spool from the spool holder.
• Loosen the nut, remove the spring and the washer; remove the spool holder from the pivot.
• Insert on the pivot the 4" wire spool; Mount the washer, the spacer and the spring.
• Tighten the lock nut.
TIGHTEN NUT. 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 (Fig. 5) (A). 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. NOTE: 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 is
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