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Model G4003G (Mfd. Since 1/15)

Basic Controls

Refer to Figures 1–4 and the following descrip-

tions to learn the basic controls of the lathe. This

information is necessary to successfully complete

the SETUP section.

Headstock & Quick-Change Gearbox

A. Spindle Speed Levers: Used to select one

of the nine spindle speeds.

B. Feed Direction Lever: Controls rotation

direction of leadscrew and feed rod.

C. Spindle Speed Chart: Shows how to arrange

spindle speed levers for each of the nine

spindle speeds.

D. Metric Threading Chart: Displays the nec-

essary configuration of gearbox levers and

end gears for metric threading options.

E. Emergency Stop/RESET Button: Stops all

machine functions. Twist clockwise to reset.

F. POWER START Button: Enables power to

spindle motor after the emergency stop but-

ton is reset.

G. INCHING (Jog) Button: Rotates spindle as

long as it is pressed.

H. POWER Lamp: Illuminates when lathe con-

trols are receiving power (Emergency Stop/

RESET button must be reset).

I. Headstock Feed Selection Lever: Selects

leadscrew for threading operations or feed

rod for power feed operations.

J. Quick-Change Gearbox Levers: Control the

leadscrew and feed rod rotation speed for

threading and power feed operations.

K. Inch Threading Chart: Displays the neces-

sary configuration of gearbox levers and end

gears for inch threading options.

Figure 1. Headstock and quick-change gearbox

controls.

F G

Grizzly G4003G User Manual

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