12
ADJUSTMENTS
B. Loosen the motor lock knob (FIG. 12, A),
then move the motor (B) manually toward
the feed handle to take tension off of the
belt.
C. Move the drive belt to the desired speed
position - refer to speed chart inside of the
belt cover.
10.
CHANGING SPINDLE SPEED:
The 47747
Bench Drill Press has five spindle speeds.
To change;
A. Lift the cover with the handle to reveal the
motor and spindle pulleys, and drive belt.
FIG. 11.
FIG. 11
FIG. 12
FIG. 13
D. Manually move the motor away from the
feed handle until the belt is tensioned, then
tighten the motor lock knob.
NOTE:
The belt is properly tensioned when
the deflection distance is about 3/8” to 1/2”
when pushed by hand. FIG. 13.
E. When the desired speed is set and the
motor is locked in place, close the cover,
plug in the machine to resume drilling.
Five Speeds are available:
740, 1100, 1530, 2100, 3140 RPM
A
B
THE MACHINE MUST NOT
BE PLUGGED IN AND THE POWER SWITCH
MUST BE IN THE OFF POSITION UNTIL ALL
ADJUSTMENTS ARE COMPLETE.
C. Carefully turn the spring cap (2) counterclock-
wise with the screwdriver, engaging the next
notch. FIG. 10.
D. Lower the spindle to the lowest position while
holding the spring cap (2) in position.
E. When the spindle moves up and down as
easily as you desire, tighten the inner nut
9.
SPINDLE SPRING TENSION - continued
(4) with a wrench. If too loose, repeat steps
2 through 4 to tighten. If too tight, reverse
steps 3 and 4. DO NOT OVERTIGHTEN as
this will restrict the spindle movement.
F.
Replace the
outer
nut (3) and tighten it against
the inner nut (4) to prevent the inner nut from
reversing.
