![](/images/new-backgrounds/1240734/24073443x1.webp)
ADJUSTMENTS
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:
nLift head assembly cover from front to open.
nLoosen the tension bolt.
nRemove the drive belt.
nReposition the belt according to the speed chart.
nRetighten the tension bolt.
DRIVE
BELT
SPINDLEMOTOR
PULLEYPULLEY
TENSION
BOLT
Fig. 24
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