Chuck Installation - Grizzly G4003G Owner's Manual

Chuck Installation

To ensure accurate work, it is extremely important
to make sure the spindle nose and chuck mating
surfaces/tapers are clean. Even a small amount of
lint or debris can affect accuracy.
The chuck is properly installed when all camlocks
are tight, the spindle and chuck tapers firmly
lock together, and the back of the chuck is firmly
seated against the face of the spindle all the way
around—without any gaps.
To install chuck:
1. DISCONNECT MACHINE FROM POWER!
2. Use appropriate lifting, support, or protective
device to protect ways and support chuck
during installation process (refer to Chuck
Safety & Support Devices).
3.
Clean and lightly oil camlock studs, then thor-
oughly clean mating surfaces of spindle and
chuck.
4.
Install chuck by inserting camlock studs
straight into spindle cam holes.
Important: Avoid inserting the studs by piv-
oting them in from an angle or rotating the
spindle. This can damage studs or spindle
cam holes.
CORRECT
Figure 24. Inserting camlock studs into spindle
cam holes.
-30-
INCORRECT
5. Incrementally tighten camlocks in criss-cross
or star pattern to ensure that chuck seats
evenly against spindle.
6. When chuck is fully seated and all camlocks
are tight, verify that cam line is between the
two "V" marks on spindle nose, as shown in
following figure.
Cam line between "V"s
Figure 25. Cam line positioned between the "V"
marks after the camlocks are fully tightened.
— If cam line is NOT between "V" marks when
camlock is tight, stud may be installed at
incorrect height. To fix this, adjust stud
height as shown in following figure. Make
sure to re-install stud cap screw afterward.
— If adjusting stud height does not correct
problem, try swapping stud positions on
chuck.
INCORRECT
Stud Too High:
Turn In
One-Turn
Figure 26. Correcting an improperly installed
stud.
Model G4003G (Mfd. Since 1/15)
INCORRECT
Stud Too Low:
Turn Out
One-Turn