Liner Removal, Installation And Trimming Instructions For Magnum; Pro 250L; Gun Handle Disassembly - Lincoln Electric Power MIG 260 Operator's Manual

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POWER MIG 260
LINER REMOVAL, INSTALLATION AND TRIMMING
INSTRUCTIONS FOR MAGNUM
NOTE: The variation in cable lengths prevents the interchange-
ability of liners between guns. Once a liner has been cut for a
particular gun, it should not be installed in another gun unless it
can meet the liner cutoff length requirement. Liners are shipped
with the jacket of the liner extended the proper amount.
1. Remove the gas nozzle and nozzle insulator, if used, to locate
the set screw in the gas diffuser which is used to hold the old
liner in place. Loosen the set screw with a 5/64" (2.0 mm)
Allen wrench.
2. Remove the gas diffuser from the gun tube.
3. Lay the gun and cable out straight on a flat surface. Loosen
the set screw located in the brass connector at the feeder end
of the cable and pull the liner out of the cable.
4. Insert a new untrimmed liner into the connector end of the
cable. Be sure the liner bushing is stencilled appropriately for
the wire size being used.
Note: For liners KP45-3545-15 and KP45-3545-25
Before fully seating the liner bushing, it will be necessary to trim
the liner's inner tube flush with the liner bushing using a sharp
blade. After trimming, remove any burrs from inner tube and
insure that the opening is fully open.
5. Fully seat the liner bushing into the connector. tighten the set
screw on the brass cable connector. The gas diffuser, at this
time, should not be installed onto the end of the gun tube.
6. With the gas diffuser still removed from the gun tube, be sure
the cable is straight, and then trim the liner to the length
shown in Figure D.1. Remove any burrs from the end of the
liner.
7. Screw the gas diffuser onto the end of the gun tube and
securely tighten.
8. Tighten the set screw in the side of the gas diffuser against
the cable liner using a 5/64" (2.0 mm) Allen wrench.
FIGURE D.1
SET SCREW
BRASS CABLE CONNECTOR
NOZZLE INSULATOR (IF USED)
CAUTION
This screw should only be gently tightened. Overtightening
will split or collapse the liner and cause poor wire feeding.
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PRO 250L

.56"
(14.2mm)
LINER
TRIM
LENGTH
SET SCREW
GAS DIFFUSER
GAS NOZZLE

GUN HANDLE DISASSEMBLY

The internal parts of the gun handle may be inspected or serviced
if necessary.
The gun handle consists of two halves that are held together with
a collar on each end. To open up the handle, turn the collars
approximately 60 degrees counterclockwise (the same direction
as removing a right hand thread) until the collar reaches a stop.
Then pull the collar off the gun handle. If the collars are difficult to
turn, position the gun handle against a corner, place a screwdriver
against the tab on the collar and give the screwdriver a sharp blow
to turn the collar past an internal locking rib.
D-2
MAINTENANCE
Counterclockwise