Lincoln Electric LN-25X Operator's Manual page 14

LN-25X™
cHanGinG tHe GUn aDapter BUsHinG
WARNING
ELECTRIC SHOCK CAN KILL.
• Turn the input power OFF at the welding power source
before installation 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 seconds
after the gun trigger is released.
• Do not operate with covers, panels or guards removed
or open.
• Only qualified personnel should perform maintenance
work.
Tools required:
• ¼" hex key wrench
Note: Some gun adapters do not require the use
of the thumb screw.
1. Turn power off at the welding power source.
2. Remove the welding wire from the wire drive.
3. Remove the thumb screw from the wire drive.
4. Remove the welding gun from the wire drive.
5. Loosen the socket head cap screw that holds
the connector bar against the gun adapter.
Important: Do not attempt to completely
remove the socket head cap screw.
6. Remove the outer wire guide, and push the gun
adapter out of the wire drive. Because of the
precision fit, light tapping may be required to
remove the gun bushing.
7. Disconnect the shielding gas hose from the gun
bushing, if required.
8. Connect the shielding gas hose to the new gun
adapter, if required.
9. Rotate the gun adapter until the thumb screw
hole aligns with the thumb screw hole in the
feedplate. Slide the gun receiver bushing into
the wire drive and verify the thumb screw holes
are aligned.
10. Tighten the socket head cap screw.
11. Insert the welding gun into the gun adapter and
tighten the thumb screw.
FIGURE A.2
Thumb Screw
Gun Adapter
A-7
INSTALLATION
Outer Wire Guide
TIGHTEN
¼" Hex Key Wrench
LOOSEN