Feed Speed Control; Return Rollers; Maintenance - KNOVA KN CM-20W3 Manual Del Usuario

ADJUSTMENTS
Gauge
Raise
table
4. Move the gauge block (J, Fig. 27) under one end of the
outfeed roller (F, Fig. 27). The bottom of the outfeed
roller should just touch the top of the gauge block. If an
adjustment to the outfeed roller is necessary, loosen
the lock nut (L, Fig 27) and turn screw (M, Fig. 27)
until the outfeed roller just touches the gauge block.
Then tighten lock nut (L, Fig. 27).
5. Check and adjust opposite end of the outfeed roller in
the same manner.
Gauge
block

MAINTENANCE

Periodic or regular inspections are required to ensure that the
machine is in proper adjustment, that all screws are tight, that
belts are in good condition, that dust has not accumulated in
the electrical enclosures, and that there are no worn or loose
electrical connections.
Buildup of sawdust and other debris can cause your machine
to plane inaccurately. Periodic cleaning is not only
recommended but mandatory for accurate planing.
Close-fitting parts, such as the cutterhead slot and gibs,
should be cleaned with a cloth or brush and non-flammable
solvent, and freed from clinging foreign matter.
Remove resin and other accumulations from feed rollers and
table with a soft rag and nonflammable solvent.
block

Feed Speed Control

Your machine is equipped with a spiral, serrated infeed roller
and a solid 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 (A, Fig. 28)
and sprockets (B, Fig. 28) which take power directly from the
cutterhead through the oil bath gear box (C, Fig. 28).
The gear box has two feed speeds. These are set by pulling
out or pushing in the shift lever (D, Fig. 28) while the machine
is running. The feed speed range is shown in Fig. 29.
Figure 26

Return Rollers

The two return rollers on
the top of the machine
serve as a convenient rest
Figure 27
for stock. They save time
and motion for the operator
as the stock is returned
to the infeed side.
Periodically check all the chains for proper tension and adjust
accordingly if required.
Tip: If a foreign object nicks the knives, instead of throwing
them away or trying to grind out the deep nick, simply
stagger the knives in the head, moving one knife no more
than 1/4" to the right and another knife no more than
1/4" to the left. The nick should no longer be noticeable.
The table should be kept clean and free of rust. Some users
prefer a paste wax coating. Another option is talcum powder
applied with a blackboard eraser rubbed in vigorously once a
week; this will fill casting pores and form a moisture barrier.
This method provides a table top that is slick and allows rust
rings to be easily wiped from the surface. Important also is
the fact that talcum powder will not stain wood or mar
9 finishes as wax pickup does.
Figure 28
20
0 16
Figure 29