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REPAIR PROCEDURE
1. Rotate the latch knob on the quick
release assembly to the open position
and swing the arm away from the
gearbox. See Figure F.14.
2. Remove the hex head bolt that attaches
the swing arm to the gearbox. Remove
the swing arm and flat washer from the
wire feeder. Remove the pivot spacer
from the swing arm.
3. Pry the speed clip off of the groove pin
and lift the idle roll assembly from
groove pin.
4. Remove the two screws that hold the
idle roller in the idle roll assembly.
Remove the idle roller.
5. Install the new idle roller in the idle roll
assembly and secure with two screws.
Tighten the two screws until the sides of
the idle roll assembly are snug against
the idle roller.
TROUBLESHOOTING AND REPAIRF-42
LN-7 GMA WIRE FEEDER
SWING ARM ASSEMBLY REPLACEMENT FOR
TWO-ROLL WIRE FEEDERS
(continued)
FIGURE F.14 – SWING ARM REMOVAL FOR TWO-ROLL FEEDERS.
GROOVE
PIN
IDLE
ROLLER
SPEED
CLIP
IDLE ROLL
ASSEMBLY
LATCH
KNOB
PIVOT
SPACER
QUICK
RELEASE
ASSEMBLY
GEARBOX