Page 38 KM3000 KM4000 Operating Manual
8. Crank the traverse drive to cut the full length of the keyway.
9. After the keyway has been cut, raise the end mill clear of the workpiece.
4.4 KM3000/KM4000 KEYWAY CUTTING
Do the following for keyway cutting:
1. Position the end mill at the end of the shaft where the keyway will be cut.
2. Turn on the motor and adjust the motor speed, referring to the Heading 3
sections depending on the drive type
3. Lower the end mill by cranking the vertical adjustment leadscrew clock-
wise until the mill cuts a flat on the shaft equal to the diameter of the end
mill. (Cut to the minimum depth that will cut a full-circle in the shaft).
4. Set the depth dial to zero. The dial is calibrated to 0.001" increments. The
dial on metric machines is calibrated to 0.01 mm.
5. Plunge the end mill by cranking the vertical adjustment leadscrew clock-
wise until the end mill is at the desired depth.
6. Crank the traverse drive shaft until the end mill has cut the desired length
keyway. Turn the crank clockwise to move the spindle and end mill toward
the base.
For the KM4000 only: The cross slide does not have a built-in stop. Do
not allow the cross slide to feed all the way out of the frame. Doing so
may result in death or severe crushing injury.
Never use your hands, compressed air, or metal tools to remove chips.
Doing so during machine operation could cause severe entanglement
or projectile injury.
7. After the keyway has been cut, crank the vertical adjustment leadscrew
counterclockwise to raise the end mill up from the work piece.
8. Crank the gearbox assembly up until the vertical adjustment screw is free
of the top slide. Remove the gearbox assembly from the machine.
The vertical feed has no built-in top position stop. Do not Do not allow
the vertical feed to feed all the way out of the frame. Doing so may
result in death or severe crushing injury.
9. Loosen the end mill socket set screw in the spindle.
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