DoAll 500SNC, Instruction Manual

Page: 20 / 35

16
Turn Handle to Set Band Tension.
2. Correct band tension for the machine's standard 1-
1/4 inch (31.7 mm) wide by 0.042-inch (1.067 mm)
gage saw band is 4.0 units or 30,000 psi (2115 kg/
cm²) measured by a DoALL Tensigage. This tension
setting is established when the factory preset stop
bolt contacts the large washer. An escutcheon near
the band tension handwheel describes the washer
to stop bolt relationship in a setting of 30,000 psi
(2115 kg/cm²).
DO NOT start the band drive motor unless the
saw band has been properly tensioned.
3. Important factors which influence band tension
settings are the size of stock to be cut and desired
band life. General rules-of-thumb are: (a) Lower
tensions will increase saw band life; (b) Greater
tension is required as spacing is increased between
the saw guide arms; (c) Higher band speeds require
greater tension.
SAW GUIDE ARM ADJUSTMENT
1. From the rear of the machine, the right saw guide
arm is fixed. The left saw guide arm can be adjusted
as follows to accommodate varying stock widths: (a)
Loosen the left saw guide insert adjustment screw
by turning counterclockwise ; (b) Loosen the left
arm's locking knob by turning it counterclockwise ;
(c) Move the arm along the slide bar until it is as
close as possible to the stock without making
contact with the stock when the head is raised or
lowered; (d) Turn the locking knob clockwise to
tighten; (e) Tighten the insert adjustment screw as
previously instructed.
DO NOT move the left saw guide arm while
the saw band is running.
2. The best cutting results are generally obtained
when the saw guide arms are positioned as close
as possible to the stock.
WORK HEIGHT ADJUSTMENT
1. The work height mechanism works in conjunction
with the head clear proximity switch (1 PRS) to
assure that the saw head has raised sufficiently
above the stock so manual stock positioning can
be accomplished safely.
Work Height Adjustment.
2. To adjust, lower the saw head all the way. Then:
(a)
Loosen the lock knob;
(b)
Rotate the adjustment
flag to the desired work height indicated with the
pointer;
(c)
Tighten the lock knob.
3. There is a convenient metric equivalent chart for
converting the work height to millimeters.
SAW HEAD POSITIONING FOR ANGLE CUTS
1. To position the saw head for angle cutting from 0° to
60°: (a) Loosen the head swivel clamping handle,
located below the pivot weldment, by turning it
counterclockwise ; (b) Pivot the saw head to the
desired angle as indicated by the pointer located
below the handle; (c) Turn the handle clockwise
to "LOCK" the saw head in place.
The capacities of the machine are reduced
when angle cutting.
2. The 0° and 60° angle positions have been preset
at the factory. If adjustment becomes necessary, it
can be made with the screws and jam nuts located
on the front of the pivot weldment.
SAW BAND PREPARATION (Continued....)