Idle Roll Assembly Replacement; Gun Tube Assembly Replacement - Lincoln Electric MAGNUM PRO 100SG SPOOL GUN Manual Del Operador

6. Drive roll may be removed with pliers, as
shown in figure D.6. It may be helpful to
relieve the idle roll tension during this
step.
FIGURE D.6
7. Clean the drive roll's groove or obtain a
new replacement drive roll (if needed).
8. Install the drive roll by reversing the
above steps 1 thru 7. Either side of the
drive roll may be face-up.
IDLE ROLL ASSEMBLY
REPLACEMENT
1. Replace if it is degraded from use; for
example, it is becoming galled with alu-
minum deposits.
2. Remove drive roll. (See Maintenance
Section)
3. Remove both idle roll assembly retaining
screws and washers.(See figure D.7)
FIGURE D.7
4. Using Needle nose pliers, slowly pull the
idle roll assembly out of the wire drive by
equally working both sides of the tabbed
idle roll spring.
5. Insert the new idle roll assembly into the
wire drive with the correct orientation,
(See figures D.8 and D.9).
MAINTENANCE
Idle Roll
Tension
Retaining screws
and washers
Correct orientation. Note that lower spring is
not visible in bore of idle roll bearing at
arrow.
FIGURE D.8
Incorrect orientation. Note that lower spring
is visible in bore of idle roll bearing at arrow.
FIGURE D.9
6. Using Needle nose pliers, push the new
idle roll assembly into the wire drive until
it is fully seated.
7. Reinstall the retaining screws and wash-
ers. Do not use the screws to draw the
idle roll into place. Reinstall the drive roll
and wire into the wire drive.
GUN TUBE ASSEMBLY
REPLACEMENT
1. Replace if it is degraded from use; for
example, its insulating tube is breaking
down.
2. Remove liner
Maintenance Section)
3. Remove left side of handle. Loosen gun
tube nut with wrench. Nut has right-hand
threads. Use adjustable pliers on gun tube
mounting plate to prevent cable assembly
from rotating in gun handle. (See figure
D.10)
FIGURE D.10
D-3
RIGHT
WRONG
assembly. (See