Powermatic 15S, Owner'S Manual

Page: 25 / 48

25
Press TOL button once (no longer than 1 second)
and that digit will increase each time TOL is
pressed.
When finished, press and hold TOL button until
indicator “SET” flashes. While indicator “SET” is
flashing, press SET button to change the arrow to
the down-arrow indicator. You can now change the
lower tolerance limit in the same manner as you
changed the upper tolerance limit.
When finished setting the lower tolerance limit,
while indicator “SET” is flashing, press SET button
(no longer than 1 second). The device is now in
tolerance measuring mode. When the up-arrow
indicator is displayed, it means the measured
value is beyond the upper limit. When the down-
arrow indicator is displayed, the measured value is
below the lower limit. When the display shows an
“OK” indicator, the measured value is within
tolerance.
Calibrating & Using Digital Scale
Scale Alignment
The scale assembly has been mounted and
aligned with the 15S Planer table at the factory.
The scale should be in vertical position, and the
digital device should slide smoothly along the full
length of the scale. Check occasionally that the
screws holding the device to the planer are tight. If
any realignment of the scale should ever be
needed, slots are provided in the mounting
brackets (Fig. 40).
Establish Absolute Zero
One of your first steps should be to “zero” the
digital scale in absolute mode. This is equivalent to
finding the exact point of contact between the
cutterhead knife and the table. This can’t be done
simply by raising the table, because the depth
limiter on the head casting will prevent contact
between table and cutterhead. However, there are
two relatively easy methods of establishing zero in
absolute mode:
Method 1 uses a gauge, such as a height gauge,
or a home-made gauge block (see Fig. 17). If
using a home-made gauge block, make sure it has
been cut to exact specifications.
1. Disconnect machine from power source.
2. Turn on the digital display. It turns on in
absolute mode.
3. Place the gauge upon the planer table and
under the cutterhead. (Make sure the gauge
lies solidly upon the table and not upon the
table rollers.)
4. Raise the table until the gauge just touches the
lowest point of a knife. Rock the cutterhead
slightly (use the pulley to do this) to make
certain the knife’s high point is contacting the
gauge.
5. The reading on the gauge, or the height of the
gauge block, should now be input into the
digital display. Refer to the instructions above
involving the “SET” button function to input
this number into your digital display.
Method 2 uses a scrap board and calipers.
1. Turn on the digital display. It turns on in
absolute mode.
2. Plane one side of a scrap board at an
appropriate and safe cutting depth (1/16” for
example).
3. Raise the table by the same amount (1/16”),
then turn the board over and plane the other
side. Do not move the table from the current
position.
4. Measure the planed board carefully with
calipers. (Our example in Fig. 41 shows the
calipers reading .850”). This measurement of
the finished board is the equivalent of the
distance from table to knife.
6. Input the measurement on the calipers into the
digital display. Refer to the instructions above
involving the SET button function to input this
number into your digital display. (Fig. 41 shows
the .850” measurement now set in the digital
display.)