Powermatic 60HH - Manual (Page 26)

26
Sharpening Knives (model 60C only)
Knives should be kept sharp. This will contribute
to better stock finish, longer machine life, and
safer operation.
A jointer knife hone provides a simple way to
sharpen straight knives. Hones are available
from many woodworking supply stores. Carefully
read any instructions that accompany the hone.
Use caution and proceed
slowly when sharpening knives. Disconnect
jointer from power source, and wear
approved eye protection.
When finished sharpening knives, they should
be re-set level to the outfeed table. See the
“Installing and Adjusting Knives” section in this
manual.
Knives can usually be whetted several times in
the cutterhead before having to be removed and
re-ground.
TIP: If the jointer is used frequently, keeping a
spare set of knives on hand is recommended.
Extra knives (stock no. 6296046, set of 3) may
be obtained from your Powermatic distributor, or
by calling WMH Tool Group at 1-800-274-6848.
Cutterhead Maintenance
The entire cutterhead assembly may be
removed for bearing replacement or other
maintenance procedures.
1. Disconnect jointer from power source.
2. Remove fence assembly from jointer (see
Figure 36 and accompanying instructions).
3. Loosen motor mounting and push up on
motor to create slack in belt (see page 10)
4. Remove drive belt from cutterhead pulley.
5. Lower both infeed and outfeed tables.
6. Loosen the two socket head cap screws on
the fence support and pivot the fence
support out of the way (see Figure 38).
7. Remove rabbeting ledge by loosening the
two hex cap screws and washers (A, Figure
39).
8. Loosen the two bolts (B, Figure 39) that
secure the cutterhead to the bed – these are
accessed from the underside of the bearing
blocks.
Either remove the knives or
knife inserts from the cutterhead, or wrap
cloths around it to prevent injury.
Figure 38
Figure 39