13
Figure 16
8.3
Changing spindle speeds
Change speeds only while drill
press is running.
With the drill press running, rotate handwheel
(shown in Figure 7) until desired speed is displayed
on LED readout at front of head. Speed range is
250 to 3000 RPM.
8.4
Depth stop
The depth stop is useful for repetitive drilling of
holes of identical depth.
Referring to Figure 17:
1. Measure distance from tip of drill bit to
workpiece. Add to this the desired depth of
hole in workpiece.
2. Position top nut (F
1
) so that its bottom edge
aligns with this measurement on the scale.
Note: For quick positioning, press button on
nut and slide into position; for fine adjustment
rotate nut along scale.
3. For less precise drilling, simply lower bit to
desired depth, as shown in Figure 17, and
slide top nut down to contact collar.
4. The lower nut (F
2
) can be used to hold the
spindle at a certain depth. Position the lower
nut up against the collar. The spindle will stop
at this position when the downfeed handle is
released.
Figure 17
8.5
Work stop
The work stop (G, Figure 17) is used for repetitive
drilling in boards of identical length. Flip up the
work stop to slide it along the fence or to remove it.
Pull it down to tighten in position.
8.6
Return spring
The tension of the return spring (which raises the
spindle after drilling) has been pre-set by the
manufacturer. No further adjustment should be
attempted unless absolutely necessary. Should it
become necessary, proceed as follows.
Referring to Figure 18:
1. Disconnect machine from power source.
2. Pry off cap (H, Figure 18) and remove hex nut
and two washers (I). Pull off hub (J).
3. Loosen two inner hex nuts (K)
Do not remove.
4. Pull out slightly the
coil spring cover (L) while
firmly holding it. DO NOT allow the coil spring
cover to turn freely in your hand, or the spring
will unwind.
5. Rotate coil spring cover until tab (M) on the
spring retainer engages the next notch in coil
spring cover. Rotate coil spring cover
counterclockwise to increase spring tension,
clockwise to decrease.
6. Make sure coil spring cover is pushed back in,
then tighten two hex nuts (K). Do not over
tighten. The hex nuts should be tightened
against each other.
7. Re-install hub, washers, hex nut and cap.
