Adjustments; Removing Chuck And Arbor; Adjusting Depth Stop; Spindle Speed Adjust - Jet JWDP-12 Operating Instructions And Parts Manual

8.0 Adjustments

8.1 Removing chuck and arbor

Refer to Figure 8:
1. Unplug machine from power source.
2. Raise table until it is about seven inches below
chuck.
3. Place a piece of scrap wood on the table, and
lower quill (E) using the downfeed handle (A).
4. Still maintaining the lowered quill position, rotate
spindle to align key hole in spindle with key hole
in quill (E).
5. Insert drift key (D) into the aligned slots and tap
lightly. The chuck and arbor assembly should fall
from the spindle.
Prepare to catch the chuck and
arbor as it drops. Striking the floor could damage
the tool.

8.2 Adjusting depth stop

Refer to Figure 9:
To drill multiple holes at the same preset depth,
use the depth stop as follows:
1. Use a pencil to mark (A) the depth the bit will drill
into the workpiece.
2. With the drill bit in the chuck, lower downfeed
handle (B) to advance bit to your mark (A).
3. With your other hand, advance the lower lock nut
(D) on the depth stop rod until it is snug to the
seat (C). Tighten upper lock nut against lower
lock nut (D).
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.

8.3 Spindle speed adjust

Refer to Figure 9:
Adjust spindle speed by changing position of spindle
speed adjust lever (G). The actual speed is shown on
the LED display (F).
The drill press must be turned on when making
this adjustment. Moving the lever (G) towards the
front increases the spindle speed while moving the
lever back will decrease speed from a range of 530
RPM to 3100 RPM.
10
Figure 8
Figure 9