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22 23
CHANGING SPEEDS
See Figure 24.
The spindle speed is determined by the location of the belt
on the pulleys inside the head assembly. The speed chart
located on the cover inside the head assembly shows the
recommended speed and pulley configuration for each drill-
ing operation.
To change the pulley configuration:
n Lift head assembly cover from front to open.
n Loosen the tension bolt.
n Remove the drive belt.
n Reposition the belt according to the speed chart.
n Retighten the tension bolt.
ADJUSTMENTS
Fig. 24
DRIVE
BELT
MOTOR
PULLEY
SPINDLE
PULLEY
TENSION
BOLT