Delta 22-450, 22-451 instruction manual CHECKING, Resetting Replacing Knives

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.

35of 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.

A

B

Fig. 33

					F
				C
			B
		D
		G
	Fig. 34
CROSS-SECTIONAL							C
VIEW OF
CUTTERHEAD						.070" gap
	D
							B
E						F
		G

Fig. 35

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, O N E O F W H I C H I S S H O W N A T ( 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.

17