Carriage Controls
The carriage handwheel allows the cutting tool to move along the length of the lathe bed. The cross slide allows the cutting tool to travel per- pendicular to the bed. The carriage features a top slide which allows linear movement of the cutting tool at any preset angle. This section will review the individual controls on the carriage and pro- vide descriptions of their uses. See Figure 20.
Compound Slide Handwheel - The Top Slide Handwheel controls the position of the cutting tool relative to the workpiece. The top slide is adjustable for any angle. The graduated dial is adjustable using the same method as the dial on the cross slide. Angle adjustment is controlled by hex nuts on the base of the top slide.
Compound Slide
Handwheel
Cross Slide
Handwheel
Carriage Handwheel
Figure 20. Handwheel locations.
Cross Slide Handwheel - The Cross Slide Handwheel moves the top slide toward and away from the work. Turning the dial clockwise moves the slide toward the workpiece. The graduated dial can be adjusted by holding the handwheel with one hand and turning the dial with the other.
Carriage Handwheel - The Longitudinal Handwheel moves the carriage left or right along the bed. The control is helpful when setting up the machine for turning or when manual movement is desired during turning operations.
Figure 21. Spindle rotation control lever.
Spindle rotation control - The spindle rotation is controlled from the lever on the right hand side of the carriage. Moving the lever down causes the spindle to rotate counter clockwise. Moving the lever up causes the spindle to turn clockwise. The middle position stops the motor and the lever is considered to be in a neutral position. See Figure 21.
G4002/3 Gear Head Lathes |