Powermatic 15HH - Manual (Page 17)

17
Chip Deflector
The chip deflector (B, Fig. 28) keeps wood chips
from falling into the outfeed roller. The deflector
should be set approximately 1/16" to 1/8” from
the tip of the knives. Make sure the deflector is
oriented so the bevel on its front edge matches
the shape of the cutterhead.
Feed Speed Control
Your machine is equipped with a spiral, serrated
infeed roller and a solid steel outfeed roller.
When the feed rollers are engaged, they turn to
feed the stock. The feed rollers slow
automatically when the machine is under heavy
load for best planing in all conditions. The feed
rollers are driven by chains and sprockets (see
Figure 29) which take power directly from the
cutterhead through the oil bath gear box. The
drive chain does not need tensioning, as a
tension device (Figure 29) maintains proper
tension at all times.
To gain access to the chain and sprockets:
1. Remove the handwheel from the machine.
2. Remove the socket head cap screw from the
center of the cover, and remove the left
triangular back plate. See Figure 30.
3. Pull the cover off the machine.
Always re-install cover over
the chain and sprockets before operating
planer.
The gear box has two feed speeds. These are
set by pulling out or pushing in the shift lever
(Figure 31). Always change feed speed while
the machine is running. A label showing the
lever positions is affixed just above the lever. It
is also shown in Figure 32.
Do not attempt to change
feed speed while stock is passing through
the machine. Damage to the gearbox may
result.
Stock Return Rollers
The two rollers on top the machine serve as a
convenient rest for stock. They save time and
motion for the operator as the stock is returned
to the infeed side.
Figure 29
Figure 30
Figure 31
Figure 32