Delta 28-348 instruction manual Adjusting Blade Tension

Models: 28-348

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ADJUSTING BLADE

TENSION

The band saw is equipped with a quick tensioning blade mechanism. To apply tension, move the tension handle

(A)to the left as shown. To release tension, move the tension lever lock (B) Fig. 49 up, and move the tension handle (A) to the right as shown in Fig. 50.

To adjust the blade tension proceed as follows:

1. DISCONNECT MACHINE FROM POWER SOURCE.

2.Push up on the blade tension lever lock (B) Fig. 49, move the blade tension handle to the right, to remove the blade tension.

3.The blade tension handle can be set for blade widths of 3/4", 1/2", 3/8", 1/4", and 1/8".

4.Pull out on the blade tension handle (A) Fig. 50, and turn the the tension lever until the appropriate width of the blade is shown on the top of the blade tension lever scale (C) and then release the blade tension lever handle.

5.Move the blade tension handle to the left until the lever lock (B) Fig. 49 engages the blade tension lever handle (A).

6.The band saw blade tension can be fine tuned by turning adjustment nut (N) Fig. 51, while the blade is tensioned.

7.A series of graduations is located on the back of the upper wheel slide bracket (T) Fig. 51. These graduations indicate the proper tension for various widths of blades.

NOTE: THESE GRADUATIONS ARE CORRECT FOR AVERAGE WORK, AND WILL NOT BE AFFECTED BY REBRAZING OF THE SAW BLADE.

WHEN CUTTING THIN PIECES, 3/4" OR LESS, SET THE BLADE TENSION BELOW THE MAXIMUM SETTING FOR BLADE WIDTH, TO EXTEND BLADE LIFE.

OVER-STRAINING IS A COMMON CAUSE OF BLADE BREAKAGE AND OTHER UNSATISFACTORY BLADE PERFORMANCE. RELEASE THE TENSION WHEN THE TOOL IS NOT IN USE.

A

B

Fig. 49

C

A

D

Fig. 50

B

 

 

 

 

C

 

 

 

T

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

 

Fig. 51

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Delta 28-348 instruction manual Adjusting Blade Tension