Delta DC-580 20" PLANER 22-450 User Manual download pdf (Page 17)

Fig. 33

Fig. 34

Fig. 35

CHECKING, RESETTING

AND REPLACING KNIVES

When checking, resetting and replacing knives, proceed

as follows:

1. DISCONNECT MACHINE FROM

POWER SOURCE.

2. Remove locking screw (E) Fig. 4, and raise top cover

(A) Fig. 33, to expose cutterhead (B).

3. Carefully place knife setting gage (C) Figs. 34 and 35,

so the gage is positioned on the radiused section of

cutterhead (B). When set correctly, knife (D) Figs. 34 and

35, should just contact the bottom of inset section (E) Fig.

35 of knife setting gage (C) which is set at .070". Check the

remaining knives in the same manner.

4. If an adjustment to one or all three knives is necessary,

slightly loosen the ten locking screws, one of which is

shown at (F) Fig 34 and Fig. 35, just enough to relieve stress

in cutterhead (B) and not disturb the knife setting.

5. With knife setting gage (C) Figs. 34 and 35 still in place

on the cutterhead, continue to adjust the knife that must

be reset by turning the ten knife locking screws

CLOCKWISE until knife locking bar (G) becomes loose.

Lifter springs (not shown) located under the knife will

automatically raise the knife until it comes in contact with

the gage (C). Then snug up the knife locking bar (G) Fig. 34

and Fig. 35, by turning the ten screws (F)

COUNTERCLOCKWISE. IMPORTANT: AT THIS TIME,

ONLY TIGHTEN THE KNIFE LOCKING BAR (G) JUST

ENOUGH TO HOLD THE KNIFE (D) IN POSITION

INSIDE THE CUTTERHEAD SLOT.

6. If other knives need adjustment, repeat STEP 5.

7. After all the knives are positioned in the cutterhead

with the knife locking screws snug, turn each of the ten

locking screws (F) Fig. 34, COUNTERCLOCKWISE UNTIL

THE KNIVES ARE SECURE IN THE CUTTERHEAD.

NOTE: When tightening the knife locking screws (F),

tighten the end screws first, then proceed inward

toward the center of the cutterhead.

IF THE KNIVES ARE TO BE REMOVED

FOR SHARPENING OR REPLACEMENT, EXTREME CARE

SHOULD BE TAKEN AS THE KNIVES ARE VERY SHARP.

TO REMOVE THE KNIVES, WEAR GLOVES AND

PROCEED AS FOLLOWS:

8. DISCONNECT MACHINE FROM

POWER SOURCE.

9. Carefully place knife setting gage (C) Fig. 34, so it is

positioned on the radiused section of the cutterhead (B)

Fig. 35.

10. Loosen knife locking bar (G) Figs. 34 and 35, by

turning ten knife locking screws, one of which is shown at

(F) CLOCKWISE and carefully remove locking bar (G),

knife (D), and springs (not shown) which are located under

the knife, from the cutterhead. Remove the remaining

knives in the same manner.

11. Thoroughly clean the knife slots, 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 locking bars (G) into the three slots in the

cutterhead (B). IMPORTANT: WHEN REPLACING

LOCKING BARS (G) FIG. 35, AGAINST KNIVES (D) AS

SHOWN IN THE CROSS SECTIONAL ILLUSTRATION,

MAKE CERTAIN 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.

CROSS-SECTIONAL

VIEW OF

CUTTERHEAD

.070" gap

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 23 24

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Delta DC-580 20" PLANER 22-450 User Manual Page 17

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