SPINDLE SPEEDS
A chart showing spindle speeds and recommended turning speeds is mounted on the pulley cover,
and for convenience, is duplicated as follows:
If you wish to run at a slower speed, say 1374
RPM, you must shift the belt inwards, 1 step.
CAUTION :
MAKE SURE THE POWER CORD IS
REMOVED FROM THE OUTLET BEFORE
ATTEMPTING TO CHANGE THE BELT POSITION.
BELT TENSION ADJUSTMENT
Belt tension is provided by the weight of the
motor pivoting the motor mounting bracket
downward through the “hinge” of the hinge
bracket. To increase the belt tension, screw in
the adjustment bolt located in the corner of the
motor mounting bracket (V, fig. 10), thus
restricting downward pivoting travel.
Conversely, loosening the adjusting bolt allows
increased pivot on the bracket thus decreasing
belt tension.
12
SPINDLE SPEEDS
Fig. 11
RECOMMENDED GENERAL SPEEDS
SPINDLE TURNING
SQUARE
LENGTH
ROUGHING
FINISHING
1” (25mm)
12” (305mm)
1374
3260
2” (50mm)
18” (455mm)
838
2215
3” (75mm)
24” (610mm)
838
2215
4” (100mm)
30” (760mm)
475
2215
5” (125mm)
36” (915mm)
475
2215
DIAMETER
THICKNESS
ROUGHING
FINISHING
12” (305mm)
4” (100mm)Max.
475
1374
10” (255mm)
4” (100mm)Max.
838
2215
8” (205mm)
4” (100mm)Max.
1374
2215
6” (150mm)
4” (100mm)Max.
2215
3260
FACE PLATE TURNING
Fig.11 shows the belt positioned on the second
step from the outside edge of the pulley. This
produces a spindle speed of 2215 RPM. (Refer
to the chart above).
