Tracking The Blade - Delta 28-248 Instruction Manual

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

TRACKING THE BLADE

DISCONNECT MACHINE FROM POWER
SOURCE.
BEFORE
MAKE SURE THAT THE BLADE GUIDES AND BLADE
SUPPORT BEARINGS ARE CLEAR OF THE BLADE.
After applying tension to the blade, rotate the wheels
slowly forward by hand and observe the blade's
movement. The blade (A) Fig. 52 should travel in the
center of the upper tire. If the blade creeps toward the
front edge, loosen the wing nut (B) Fig. 51, and turn the
thumb screw (C) clockwise. This action draws the blade
toward the center of the tire. If the blade creeps toward
the back edge, turn the thumb screw in the opposite
direction. Adjust the thumb screw (C) Fig. 51 only a
fraction of a turn each time.
NEVER TRACK THE BLADE WHILE
THE TOOL IS RUNNING.
After the blade is tracking in the center of the tires,
tighten the wing nut (B) Fig. 51.
VERTICAL ADJUSTMENT OF
THE UPPER BLADE GUIDE
ASSEMBLY
DISCONNECT MACHINE FROM POWER
SOURCE.
Adjust the blade guides and bearings according to the
following instructions.
Set the upper blade guide assembly (A) Fig. 53 as close
as possible to the top surface of the workpiece. Loosen
the lock knob (B) and move the guide assembly (A) to
the desired position.
TRACKING THE BLADE,
C
A
20
B
Fig. 51
A
Fig. 52
B
Fig. 53
T
N