Changing The Speed Of The Drill Press - 909 DP250LS Instruction Manual

The drill scale is a guide. Always check the depth with a
measuring tool to be sure the correct depth is achieved. If
repeated holes are required, set the setting nuts as follows.
6. After drilling the first hole, and checking the hole is
correct, with the drill turned OFF, lower the drill bit into the
hole and hold with the drill bit fully inserted.
7. Rotate the first setting nut all
the way down so it makes
contact with the cast step on
the housing.
The handle can be rotated
now so the drill bit lifts from
the hole.
8. Holding this first nut with a
spanner, bring the second
nut down so as to sit on top
of the first nut. With a second
spanner, and still holding
the first nut with a spanner,
tighten the second nut on to
the first nut. The setting is
now locked.
9 Repetitive holes can now be drilled with the depth of the
holes limited to the pre set depth as above.
Note. Always check the depth after setting the stops, as
minor adjustments may be needed.
Constantly check the setting does not alter during drilling.

Changing the speed of the drill press

The speed of the drill press is determined by the size of
the pulley steps that the belt is attached to. Using a smaller
pulley step on the front pulley means a faster drill speed;
using a larger pulley step on the front pulley means a slower
drill speed. The below table indicates the speed of the drill
in the various belt positions.
1. Remove the plug from the mains socket.
2. Loosen and remove the pulley cover screw and lift the
pulley cover (4).
3. Loosen the belt tension knob (10) and push the motor
housing towards the front of the drill press to make belt
changes easier.
4. To select a faster drill speed,
move the belt up to a smaller
step on the front pulley. Then
move it up to the equivalent
step on the rear pulley.
Rotating the pulleys and
"rolling" the belt onto the larger
pulley will make this easier.
5. To select a slower drill speed,
move the belt down to a
smaller step on the rear pulley.
Then move it down to a larger step
on the front pulley. Rotating the
pulleys and "rolling" the belt onto
the larger pulley will make this
easier.
Note.
The belt should always be on
the same relative step on the front
and rear pulleys, for example if it is
on the top step of the front pulley
then it should also be on the top step
of the rear pulley.
6. Tighten the belt tension knob (10)
to secure the motor in position.
12
2500
1900
1400
890
500