Powermatic 15HH - Manual (Page 12)

12
IMPORTANT: Be sure that the height of front
and rear rollers are the same. And the table
rollers must always be set parallel to the table.
Cutterhead
Although your planer was carefully adjusted at
the factory, it should be checked before being
put into operation. Any inaccuracies due to
rough handling in transit can be corrected by
following the directions in this manual.
To check the adjustments you will need feeler
gauges, and a dial gauge or home-made gauge
block made of hardwood. This gauge block can
be made by following the dimensions shown in
Figure 17.
Replacing Knives (Model 15S only)
Use caution and proceed
slowly when working with and around the
knives – they are extremely sharp!
When dull knives are replaced, care must be
exercised in setting the new knives into the
cutterhead. There is a certain procedure to
follow which will ensure a proper setting of
knives on the 15S Planer. Proceed as follows:
1. Disconnect machine from power source.
2. Remove the dust hood and the top cover.
Remove the chip deflector (Figure 28 shows
the chip deflector). Remove the belt guard
so you can rotate the cutterhead using the
pulley.
3. Remove the gib screws with the T-handle
hex wrench, as shown in Figure 18, and
remove each gib one at a time.
4. Carefully remove the knife, and clean the
cutterhead slot of any dust or debris.
5. Place the new knife into the cutterhead slot.
6. IMPORTANT: As you proceed with knife
installation, make sure the wings on both
ends of each hole (see Figure 18) are
completely inserted into the groove in the
cutterhead. Failure to do this may result in
knife breakage during operation.
7. There are a total of three short gibs and
twelve long gibs on the cutterhead. It is not
important whether long or short gib is used
in any particular location along the knife. Of
course, each knife must use one short gib.
8. Put the first gib in place at the end of the
cutterhead. Use the knife adjustment pins
shown in Figure 19. The adjustment pins fit
down through the smaller holes in the gib,
knife, and cutterhead, helping to align them.
Figure 17
Figure 18 – Model 15S only
Figure 19 – Model 15S only