f. Rethread wire from spool through feeder. (Re-
4.2 RETHREADING BROKEN WELD WIRE
fer to feeder manual. )
Rethread wire as follows:
h. Insert protruding wire of drive roll housing as-
sembly at Gun into liner retainer. Slowly slide housing
into place on Gun until it locks in.
MAKE SURE ALL POWER IS OFF.
i. Screw nozzle onto Gun. Hand tighten.
a. Push in lock button on right side of Gun. Slide
j. Turn power ON. Operate Gun with trigger (and
off drive roll housing.
jog button, if installed) for a short interval to ascer-
tain that it operates satisfactorily.
b. Unscrew and remove nozzle from Gun barrel.
c. Pull length of wire out of Gun barrel.
When a malfunction occurs in the welding system, re-
d. Actuate casing latch. Pull casing out of drive
fer to Table III to determine whether the trouble can be
confined to the Gun. Then troubleshoot the Gun in ac-
e. Remove casing from feeder,