Liner Assembly Replacement Or Cleaning; Drive Roll Replacement - Lincoln Electric MAGNUM PRO 100SG SPOOL GUN Manuel De L'opérateur

LINER ASSEMBLY REPLACEMENT
OR CLEANING
1. Replacement liner assemblies are fac-
tory-made to the correct length. No cut-
ting is required. The same liner fits all
specified wire sizes and alloys:
2. Remove gas nozzle, contact tip, and
gas diffuser (see Gas Diffuser
Replacement in this Section). Remove
spool cover.
3. Liner removal: Grasp liner with Needle
nose pliers at point A. Gently work liner
toward cable connector until the liner is
loose in it. Be careful not to scrape
liner's gas-tight seal (point B) on con-
nector. Withdraw liner out of gun tube
(arrow C). (See figure D.2)
FIGURE D.2
C
3a. Clean out old liner by blowing out with
shop air or obtain a new replacement
liner.
4. Slide liner, seal-end first, into gun tube.
Grasp liner with pliers at
A. Gently push liner into connector.
B. Check that liner passes through slot
in wire feeder.
C. Stop pushing when liner is 1.00 to
1.25 inches from end of gun tube.
(See figure D.3)
FIGURE D.3
A
C
5. Liner installation: See step 4 above.
MAINTENANCE
B
A
B
6. Reinstall gas diffuser (see Figure D.1)
and thread into place. Allow the diffuser
to push the liner into its final position.
Tighten to 41 to 47 in.-lbs. with a torque
wrench.
7. Reinstall contact tip and gas nozzle.

DRIvE ROLL REPLACEMENT

1. The same drive roll fits all specified wire
sizes and alloys (See Table D.1).
2. Replace the drive roll if its feeding
groove has become worn or cannot be
cleaned of galled aluminum.
3. Drive roll removal: Remove wire from
the wire drive. Unlock drive roll by rotat-
ing twist-lock in either direction. (See
figure D.4 and figure D.5) .
4. Twist-lock is rotated to the locked posi-
tion, securing drive roll in place.
FIGURE D.4
5. Twist-lock is rotated to the unlocked
position, allowing drive roll removal.
FIGURE D.5
D-2
Twist-lock
Locked position
Twist-lock
Unlocked position