Jet GH-1640ZX Operating Instructions

19
Operation
Feed and Thread Selection
1. Reference the feed and thread chart on the
front of the headstock (A, Figure 16).
2. Move levers and knobs (B/C/D/E, Figure 16)
to the appropriate position according to the
feed and thread chart.
Thread Cutting
1. Set forward/reverse lever (F, Figure 16) to
desired direction.
2. Set selector levers (G/H, Figure 16) to
desired R.P.M. [On EVS models, use lever
H and the variable speed dial on the swivel
control panel to select speed.]
3. Select desired thread using levers (B/C/D/E,
Figure 16).
4. Set selector lever (A, Figure 17) to correct
position (neutral).
5. Engage the half nut lever (B, Figure 17).
6. Make a test cut with scrap material and
check results before cutting regular material.
Gib Adjustments
After a period of time, some of the moving
components may need to be adjusted due to
wear.
Saddle
Turn gib screws on either side of the saddle at
the rear to adjust the drag on the saddle.
Cross Slide
Turn gib screws in the front and rear of the gib
to adjust the drag of the cross slide.
Compound Slide
Turn gib screws to adjust the drag of the
compound slide.
Tailstock Off-Set
Follow the procedure below to off-set the
tailstock to cut shallow tapers:
1. Loosen tailstock in position by lowering
locking handle (B, Figure 18) and loosening
hexagon head eccentric shaft at back of
tailstock.
2. Alternately loosen and tighten front and rear
screws (D, Figure 18). Note: Front screw is
shown.
Figure 16
Figure 17
Figure 18

Jet GH-1640ZX Specifications

General

Brand	Jet
Model	GH-1640ZX
Category	Lathe
Language	English