14
8.3
Chuck preparation (three-jaw)
Read and understand all
directions for chuck preparation. Failure to
comply may cause serious personal injury
and/or damage to the lathe.
The three-jaw scroll chuck is shipped pre-installed
on the lathe. It can be used for clamping cylindrical,
triangular and hexagonal stock, and has reversible
jaws.
Note: An optional 12-inch, 4-jaw chuck is available
(part no. ZX-OP-2A). See your dealer to order.
Before removing a chuck, place a flat piece of thick
plywood across the bedways under the chuck to
prevent damage to the bedways should the chuck
fall from your hands. Alternatively, many users
make a wood chuck cradle that sits atop the ways
and accepts the specific diameter of chuck, for
easier installing and removal. Figure 6 shows an
example.
Figure 6: Chuck cradle
To remove the chuck:
1. Support the chuck while turning six camlocks
1/4 turn counterclockwise with the chuck
wrench from the tool box.
2. Carefully remove the chuck from the spindle
and place on an adequate work surface.
3. Inspect the camlock studs. Make sure they
have not become cracked or broken during
transit. Clean all parts thoroughly with solvent.
Also clean the spindle and camlocks.
4. Cover all chuck jaws and scroll inside the
chuck with #2 lithium tube grease. Cover the
spindle, camlocks, and chuck body with a light
film of 20W oil.
5. Lift the chuck up to the spindle nose and press
onto the spindle. Tighten in place by turning
the camlocks 1/4 turn clockwise. The index
mark (A, Figure 7) on the camlock should be
between the two indicator arrows (B) when
tight, as shown in Figure 7.
•
If the index mark (A) is
not
between the two
arrows, i.e. the cam turns beyond the
indicator arrows, then remove the chuck and
turn the camlock stud IN one full turn.
•
If a camlock will not engage, remove the
chuck and turn the camlock stud OUT one
full turn.
Figure 7: Camlock
6. Make sure chuck is secure on the spindle with
the camlocks correctly engaged.
8.4
Break-in period
Do not run the lathe above 560 RPM for the first six
hours of operation, to allow gears and bearings to
adapt and run smoothly.
Summary of Contents for GH-1440ZX
Page 26: ...26 T H R E A D I N G C H A R T I N I N C H ...
Page 27: ...27 m m M E T R I C T H R E A D I N G C H A R T M P M O D U L E P I T C H ...
Page 31: ...3 1 1 Stand Assembly Exploded View ...
Page 34: ...6 2 1 Brake Assembly Exploded View ...
Page 36: ...8 3 1 Bed Assembly Exploded View ...
Page 39: ...11 4 1 Headstock Assembly I Exploded View ...
Page 43: ...15 5 1 Headstock Assembly II Exploded View ...
Page 46: ...18 6 1 Headstock Assembly III Exploded View ...
Page 48: ...20 7 1 Headstock Assembly IV Exploded View ...
Page 50: ...22 8 1 Change Gear Box Assembly I Exploded View ...
Page 52: ...24 9 1 Change Gear Box Assembly II Exploded View ...
Page 54: ...26 10 1 Quick Change Gear Box I Exploded View ...
Page 57: ...29 11 1 Quick Change Gear Box II Exploded View ...
Page 59: ...31 12 1 Quick Change Gear Box III Exploded View ...
Page 61: ...33 13 1 Apron Assembly I Exploded View ...
Page 64: ...36 14 1 Apron Assembly II Exploded View ...
Page 67: ...39 15 1 Apron Assembly III Exploded View ...
Page 69: ...41 16 1 Carriage Assembly Exploded View ...
Page 73: ...45 18 1 Carriage Stop Assembly Exploded View ...
Page 75: ...47 19 1 Quick Change Tool Post Exploded View ...
Page 77: ...49 20 1 Tailstock Assembly I Exploded View ...
Page 79: ...51 21 1 Tailstock Assembly II Exploded View ...
Page 81: ...53 22 1 Steady Rest Assembly Exploded View ...
Page 83: ...55 23 1 Follow Rest Assembly Exploded View ...
Page 85: ...57 24 1 Coolant Work Light Assembly Exploded View ...
Page 89: ...61 26 2 Electrical Cabinet Breakdown 6 7 8 12 11 10 17 22 21 23 13 9 9a 20 18 3a 1 2 4 19 3 ...
Page 90: ...62 27 0 Wiring Diagram ...
Page 94: ...66 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com ...