Jet Tools Jet Drill Press JDP-15M/MF - Manual (Page 10)

10
Figure 8
Chuck and Arbor Removal
Referring to Figure 9:
1. Unplug machine from the power source.
2. Raise the table until it is about seven inches
below the chuck.
3. Place a piece of scrap wood on the table,
and lower quill (A) using the downfeed
handle.
4. Rotate spindle to align the keyhole in the
spindle with the keyhole in the quill.
5. Insert the drift key (B) into the aligned slots
and tap lightly. The chuck and arbor
assembly should fall from the spindle.
Figure 9
Adjustment
Depth Stop Adjustment
Referring to Figure 10:
To drill multiple holes at the same preset depth,
use the depth stop:
1. Use a pencil to mark the depth the bit will
drill into the workpiece.
2. With the drill bit in the chuck, lower
downfeed handle to advance bit to your
mark (A).
3. With your other hand, advance the lock nuts
(B) on the depth stop rod until they are snug
to the seat (C).
4. The drill bit will now advance to this point.
5. To release, advance the nuts counter-
clockwise to the top of the depth stop.
Figure 10
Changing Spindle Speeds
A spindle speed and pulley/belt arrangement
chart is found on the inside of the pulley cover
(D, Fig. 11). The chart is also shown in Figure
12. Refer to this chart whenever changing
speeds.
To change spindle speeds:
1. Unplug the machine from the power source.
2. Loosen two bar knobs (E, Fig. 11) found on
each side of the head assembly.
3. Rotate the tension adjuster clockwise (F,
Fig. 11) to bring the motor base as close to
the head as possible.
4. For desired speed, change the location of
belts per pulley/belt arrangement chart.
5. Rotate the tension adjuster
counterclockwise (F. Fig. 11) to tension the
belts.