DoAll C-3028NC Boxed, Инструкция по эксплуатации

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MACHINE PREPARATION (Continued…)
4. Turn the band tension selector to ON and then to
HOLD until the saw band is tensioned just enough
to be held in place and adjustments can be made.
5. Check the saw band portion around both band
wheels and adjust (its back must rest against each
wheel’s rear flange. When satisfied that saw band
positioning is correct: (a) turn the band tension
selector to ON; (b) move the saw guide arm to the
desired position; (c) tighten both saw guide insert
adjustment screws.
6. Reposition the band brush and tighten the clamp
handle (brush bristles should clean the teeth tips
but no contact the bottom of the gullets). Then: (a)
lift the band wheel doors to disengage the lock and
close both doors; (b) jog the band drive motor; (c)
open each band wheel door to make sure the saw
band is against the band wheel flanges (+/‐ 1 mm);
(d) close the doors when everything is satisfactory.
BAND SPEED RANGE
1. The operator can select between HIGH and LOW
band speed ranges by switching the drive belt from
one set of pulleys to the other.
2. LOW range is the front set of pulleys and HIGH
range is the rear set.
Band Speed Range Pulleys
3. Band speed range is as follows:
LOW : 15 – 85 m/min
HIGH : 25 – 135 m/min
4. To change the band speed range, open the right band
wheel door. Then: (a) undo the guard clip and remove the
screws; (b) located in the rear of the machine between
the band drive motor and the gearbox, turn the
adjustment knob counterclockwise to relax belt tension;
(c) install the belt to the desired speed range set of
pulleys.
5. Turn the adjustment knob clockwise to tension the belt.
There should be very little difference at the center span
of the belt.
6. Flip the cover up and engage the clip and install the
screws.
LEFT SAW GUIDE ARM ADJUSTMENT
The right saw guide arm cannot be adjusted.
1. The left saw guide arm moves along the slide bar to
accommodate various stock widths (the arm should be
positioned as close as possible to the clamped stock.
2. Stock width settings are depicted by a slide bar scale with
both metric and inch measurements.
3. To adjust the left saw guide arm according to stock width,
the operator loosens the left insert adjustment screw and
the guide arm locking handle. Next: (a) line up the left saw
guide arm’s right edge with the proper inscribed scale line;
(b) secure the saw guide arm in the chosen location by
tightening the guide arm handle; (c) tighten the left insert
adjustment screw.
DO NOT hammer the locking hand wheel. Hand
tightening is adequate to lock the left saw guide arm
in place.
FEED FORCE ADJUSTMENT
1. Feed force is the pressure exerted by the workpiece
against the saw band’s cutting edge. It is controlled
hydraulically and regulated with the
Feed Force valve.
Turn the valve clockwise to DECREASE pressure,
counterclockwise to INCREASE pressure.
2.
The following are important factors to consider when
setting or adjusting the Feed Force valve:

Turn the Feed Force valve to a low setting if the
correct feed force is not known. The operator
can then increase or decrease pressure during
operation to obtain the best cutting rate
consistent with desired blade life and cut finish.
Always be sure to take a good chip.

Never start a cut with the maximum Feed Force
valve setting. Blade damage may occur.

Certain work‐hardening materials will require a
moderate to heavy initial Feed Force valve
setting to assure immediate penetration of
blade teeth. Light feeds on these materials may
cause the blade to slide over the stock resulting
in saw band damage.