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TURN POWER OFF!
Wait until machine has come to a
complete stop before proceeding with
speed change!
Proper belt tension is approx. 10 lbs. of pressure or deflection of about 1/2 "
BELT TENSION ADJUSTMENT
Speed adjustment:
Open the pulley cover to expose the
pulleys and drive belts.
Loosen the belt tension lock handles.
Choose the proper speed for the drilling
operation. Move the belt to the correct
step of the pulleys for the desired speed.
(See diagram on page 8) Push the motor
backwards until proper belt tension is
applied. (1/2" deflection as shown below
speed selection chart in this manual)
Retighten belt tension lock handle.
NOTE: If center pulley bracket does not
move freely, loosen spring loaded bolts
½ - ¾ turns.
9
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