AGM PA-15, Instruction Manual

Page: 11 / 42

11
MODEL 250-C WELD GUN
INSTALLATION AND REMOVAL PROCEDURES
INSTALLING COLLET AND COLLET PROTECTOR
A. Examine the inside of the collet adapter assembly for pitted areas or splatter.
Clean by scraping with sharp object or replace if necessary.
B. Insert the collet into the collet adapter assembly, making sure that it seats against
the inside shoulder.
C. Rotate the retaining ring to expose the two (2) collet holding set screws and
tighten them securely . These screws should be checked frequently for tightness.
D. Slide the collet protector over the collet adapter assembly, making sure that it
seats properly. Tighten the set screws securely.
COLLET REMOVAL
A. Remove the collet protector by loosening the two (2) protector holding set screws
approximately 1-1/2 turns.
B. Loosen both collet-holding set screws approximately 1-1/2 turns.
C. Grasp the collet by the end, and remove.
If you have difficulty removing the collet, the following procedures may be
helpful:
1. Manually rotate the collet.
2. Insert the proper size stud or pin into the collet, and attempt to remove the
collet by pulling on the stud or pin.
3. If the above suggestions do not work, pliers may be used.