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D-3
MAINTENANCE
REPLACE INTERNAL GUN
HANDLE PARTS AS 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 counter-clock-
wise (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 screwdriv-
er against the tab on the collar and give the
screwdriver a sharp blow to turn the collar
past an internal locking rib. See Figure D-3.
FIGURE D.3
CHANGING LINER
NOTICE: The variation in cable lengths pre-
vents the interchangeability of liners. 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. Refer to Figure D.2.
1. Remove gun and cable assembly from
machine.
2. Remove the gas nozzle from the gun by
unscrewing counter-clockwise.
3. Remove the existing contact tip from the
gun by unscrewing counter-clockwise.
4. Remove the gas diffuser from the gun
tube by unscrewing counter-clockwise.
5. Lay the gun and cable out straight on a
flat surface. Loosen the set screw locat-
ed in the brass connector at the wire
feeder end of the cable. Pull the liner out
of the cable.
6. Insert a new untrimmed liner into the
connector end of the cable. Be sure the
liner bushing is stenciled appropriately
for the wire size being used.
7. Fully seat the liner bushing into the con-
nector. Tighten the set screw on the
brass cable connector. At this time, the
gas diffuser should not be installed onto
the end of the gun tube.
8. With the gas nozzle and diffuser
removed from the gun tube, be sure
the cable is straight, and then trim the
liner to the length shown in the Figure
D.2. Remove any burrs from the end of
the liner.
9. Screw the gas diffuser onto the end of
the gun tube and securely tighten.
10.Replace the contact tip and nozzle.
➣
Counter-clockwise