Adjusting Spring Tension On Feed Rollers; Adjusting Chipbreakers - Delta RC-51 Instruction Manual

ADJUSTING
SPRING TENSION
ON FEED ROLLERS
The outfeed roll (A) Fig. 22, and infeed roll (not visible)
are those parts of your planer that feed the stock while
it is being planed. The feed rolls are under spring tension
and this tension must be sufficient to feed the stock
uniformly through the planer without slipping but should
not be too tight that it causes damage to the board. The
tension should be equal at both ends of each roll.
To adjust spring tension on the infeed roll, turn screws
(8) Fig. 22, right or left until they are flush with top of
casting (C). To adjust spring tension on the outfeed roll
(A), turn screws (0) until they are 2 to 3 complete turns
below surface of casting (C).

ADJUSTING CHIPBREAKERS

The chipbreakers are located on top of the planer and
extend down around the front of the cutterhead. The chip­
breakers raise as stock is fed through and "breaks or
curls" the chips the same as a plane iron cap on a hand
plane. The bottom of the chipbreakers must be parallel
to the knives and set .011
check and adjust the chipbreakers, proceed as follows:
1.
DISCONNECT MACHINE FROM THE POWER
SOURCE.
2. Make certain the knives are adjusted properly as
previously explained under CHECKING, ADJUSTING
AND REPLACING KNIVES.
3. Place gage block (A) Fig. 23, on the table directly
underneath the cutterhead, as shown. Using a .011
feeler gage (8) Fig. 23, placed on top of the gage block,
raise or lower the table until the knife just touches the
feeler gage when the knife is at its lowest point. Do not
move the table any further until the adjustment is
completed.
Move the gage block (A) underneath the chipbreakers
4.
(C) as shown in Fig. 24. The bottom of the chipbreakers
should just touch the top of the gage block. Check oppo­
site end of chipbreakers in the same manner.
5. If an adjustment to the chipbreakers is necessary,
loosen three screws (D) Fig. 25, and move chipbreaker
bracket (E) until bottom of chipbreakers just touch gage
block at both ends.
6. The spring tension of the individual chipbreakers can
be adjusted by tightening or loosening the ten adjusting
screws (F) Fig. 25.
below the cutting circle. To
II
II
11
Fig. 22
Fig. 23
Fig. 24
Fig. 25