Acra 1440GWI, Operation Manual

Page: 7 / 76

7
Chuck Preparation (Three Jaw)
WARNING
Read and understand all the directions for
chuck preparation!
Failure to comply may cause serious injury
and/or damage to the lathe!
Note: Before removing the chuck from the spindle,
place a way board across the bed ways under the
chuck.
1. Support the chuck while turning three cam
locks 1/4 turn counter-clockwise with the
chuck key enclosed in the tool box.
2. Carefully remove the chuck from the spindle
and place on an adequate work surface.
3. Inspect the cam lock studs. Make sure they
have not become cracked or broken during
transit. Clean all parts thoroughly with solvent.
Also clean the spindle and cam locks.
4. Cover all luck jaws and scroll inside the chuck
with Mobilith
®
AM2. Cover the spindle, cam
locks, and chuck body with a light film of
Mobil DTE
®
Oil Heavy Medium.
5. Lift the chuck up to the spindle nose and press
onto the spindle. Tighten in place by turning
the cam locks 1/4 turn clockwise. The index
mark (A, Fig.2) on the cam lock should
between the two indictor arrows (B, Fig.2). If
the index mark is not between the two arrows,
remove the chuck and adjust the cam lock
studs by either turning out one full turn (if
cams will not engage) or turning in one full
turn (if cams turn beyond indicator marks).
6. Install chuck and tighten in place.
Fig.2