Delta 22-470 User Manual download pdf (Page 18)

Fig. 36

CONSTRUCTING GAGE BLOCK

In order to check and adjust the height of the chipbreaker,

pressure bar, infeed and outfeed rollers and adjust the cut-

ter-head parallel to the table, you will need a gage block

made of hard wood. The gage block can easily be con-

structed by following the dimensions shown in Fig. 36.

ADJUSTING CHIPBREAKERS

The chipbreakers (A) Fig. 37, are located on top of the

planer and extend downward around the front of the cut-

terhead. The chipbreakers will rise as stock is fed through

the planer and “breaks or curls” the wood chips. The bot-

tom of the chipbreakers must be parallel to the knives and

set .040 below the cutting circle. To check and adjust the

chipbreakers, proceed as follows:

1. DISCONNECT THE MACHINE FROM

THE POWER SOURCE.

2. Make certain the knives are adjusted properly as

explained in section “CHECKING, REPLACING AND

RE-SETTING KNIVES.”

3. Place gage block (B) Fig. 38, on the table surface and

directly under the cutterhead as shown. Using a .040

feeler gage (C) Fig. 38, placed on top of the gage

block, raise the table until cutterhead knife (D) touch-

es the feeler gage when the knife is at its lowest point.

DO NOT MOVE THE TABLE ANY FURTHER UNTIL

THE ADJUSTMENT HAS BEEN COMPLETED.

Fig. 38

45°

GRAIN

Fig. 35

CROSS-SECTIONAL

VIEW OF

CUTTERHEAD

.070 gap

11. Thoroughly clean the knife slots, knife locking bars,

and locking screws. Check the screws; if the threads

appear worn or stripped, or if the heads are damaged,

replace them.

12. Carefully replace the springs (not shown), knives (D)

Fig. 35, and knife locking bars (G) into the three slots

in the cutterhead (B). IMPORTANT: WHEN REPLAC-

ING KNIFE LOCKING BARS (G) FIG. 35, AGAINST

KNIVES (D) AS SHOWN IN THE CROSS SEC-

TIONAL ILLUSTRATION, MAKE CERTAIN KNIFE

LOCKING BARS (G) ARE INSTALLED AS SHOWN,

WITH LOCKING SCREWS (F) HOLDING KNIVES (D)

PROPERLY INSIDE THE CUTTERHEAD SLOTS.

TURN ALL KNIFE LOCKING SCREWS, ONE OF

WHICH IS SHOWN AT (F), COUNTERCLOCK-

WISE, JUST ENOUGH TO HOLD THE KNIVES IN

THE CUTTERHEAD.

13. Adjust the knives as explained in STEPS 3 through 7.

14. Replace top cover on the machine.

Fig. 37

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 27 28

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Delta 22-470 User Manual Page 18

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