Conversion To 460 Volt Operation; Controls - Jet GH-1440ZX Operation And Maintenance Instructions

11.1 Conversion to 460 volt operation

Disconnect
power source. Failure to do so may cause
serious injury.
Main Motor: Change the wires according to the
diagram on the outside of the motor junction box.
Transformer: Open electrical panel on rear of
machine on the headstock side. Switch wire from
230V terminal to 460V terminal as outlined on the
transformer.
Coolant Pump: Open access panel on the base at
the tailstock end. Change wires in coolant pump
junction box according to diagram on the outside of
the junction box cover.
Main Power Switch (A, Figure 14): Turns power to
machine on and off.
Power Source Cable Receiver (B, Figure 14).
Make sure the lathe is properly grounded.
Figure 14: Power input
machine from
17

12.0 Controls

Figure 15 – Headstock controls
1. Control Panel: located on front of headstock.
•
Coolant On-Off Switch (A, Figure 15)
turns coolant pump on and off.
•
Power Indicator Light (D, Figure 15) is lit
whenever lathe is receiving power.
•
Emergency Stop Switch (C, Figure 15)
stops all machine functions (Caution:
Lathe will still
clockwise to re-set.
•
Jog Switch (B, Figure 15). Quickly press
and release to rotate the spindle.
2. Headstock Gear Change Levers (F, Figure
15): Move levers left or right to desired spindle
speed, according to accompanying chart.
3. Leadscrew/Feed Rod Directional Dial (E,
Figure 15): Changing knob changes direction
of feed.
Do not move knob (E)
while machine is running.
4. Feed/Lead Selector Levers (G, Figure 15):
Used conjunctively to set up for threading or
feeding, according to the accompanying chart
(G , Figure 15).
1
have power). Twist