A-4INSTALLATION
RED-D-ARC LN-25™ PRO EXTREME
A-4LOADING SPOOLS OF WIRE• Keep hands, hair, clothing and tools
away from rotating equipment.
• Do not wear gloves when threading wire
or changing wire spool.
• Only qualified personnel should install, use or
service this equipment.
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Loading 10 to 15 lb. (4.5 – 6.8kg) Spools.
A K468 spindle adapter is required for loading 2"
(51mm) w ide spools on 2" (51m m) spindl es. Use a
K468 spindle adapter for loading 2-1/2" (64mm) wide
spools.
WARNING
GUN RECEIVER BUSHING
LOOSEN TIGHTEN
THUMB SCREW
OUTER WIRE GUIDE
SOCKET HEAD
CAP SCREW
CONNECTOR BLOCK
GUN RECEIVER BUSHING
LOOSEN TIGHTEN
THUMB SCREW
OUTER WIRE GUIDE
SOCKET HEAD
CAP SCREW
CONNECTOR BLOCK
•Turn the input power OFF at the
welding power source before instal-
lation or changing drive rolls and/or
guides.
• Do not touch electrically live parts.
• When inching with the gun trigger, electrode
and drive mechanism are "hot" to work and
ground and could remain energized several sec-
onds after the gun trigger is released.
• Do not operate with covers, panels or guards
removed or open.
• Only qualified personnel should perform mainte-
nance work.
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1. Turn power off at the welding power source.
2. Release the idle roll pressure arm.
3. Remove the outer wire guide by turning the knurled
thumbscrews counter-clockwise to unscrew them
from the feed plate.
4. Rotate the triangular lock and remove the drive
rolls.
5. Remove the inner wire guide.
6. Insert the new inner wire guide, groove side out,
over the two locating pins in the feed plate.
WARNING
FIGuRE A.2 7. Install a drive roll on each hub assembly secure
with the triangular lock.
8. Install the outer wire guide by aligning it with the
pins and tightening the knurled thumbscrews.
9. Close the idle arm and engage the idle roll pressure
arm. Adjust the pressure appropriately.
1. Squeeze the release bar on the retaining collar and
remove it from the spindle.
2. Place the spindle adapter on the spindle, aligning
the spindle brake pin with the hole in the adapter.
3. Place the spool on the spindle and align the
adapter brake tab with one of the holes in the back
side of the spool. An indicator mark on the end of
the spindle shows the orientation of the brake tab.
Be certain the wire feeds off of the spool in the
proper direction.
4. Re-install the retaining collar. Make sure that the
release bar snaps out and that the retaining collar
fully engages the groove on the spindle.