Delta 40 Instruction Manual download pdf (Page 11)

Fig. 26

Fig. 27

5. Fig. 26 illustrates the quickset blade changing

wrench (K) engaged with the lower blade holder assem-

bly. Turn wrench counterclockwise to loosen screw (J)

Figs. 26 and 27, and remove blade from lower chuck, as

shown in Fig. 27.

6. Insert new blade into the lower and upper blade

holders in the same manner, making certain the blade

teeth are pointing down toward the table.

7. Apply blade tension by referring to the following

section "ADJUSTING BLADE TENSION."

Fig. 28

Fig. 29

ADJUSTING BLADE TEN-

SION

Tension is applied to the blade when the blade tension

lever (A) Fig. 28, is in the rear position, as shown. When

the lever (A) is moved forward, as shown in Fig. 29,

blade tension is released.

To increase blade tension, turn knob (B) Fig. 29, clock-

wise and to decrease blade tension, turn knob (B)

counter-clockwise. When adjusting blade tension, lever

(A) should be in the forward position, as shown in Fig.

29. NOTE: It is necessary to adjust the blade tension

knob (B) only when the blade is removed from both

upper and lower blade holders and a new or different

type of blade is assembled to the holders. It is not nec-

essary to adjust blade tension when the blade is

removed and replaced in only the upper blade holder as

in performing inside cutting operations.

Adjusting the blade for proper tension is usually accom-

plished by trial and error; however, a good method to

use is to pluck the rear of the blade, like a guitar string,

after the tension lever (A) Fig. 29, is moved to the rear. A

high-pitched tone of the blade should be heard and this

usually indicates proper tension. Finer blades require

more tensioning (a higher pitched sound) while thicker

blades require less tension.

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Delta 40 Instruction Manual Page 11