Adjusting The Blade To The Flywheels - Promac SX-823DGSVI Manual

5.4 Saw frame return stroke-limiting device
It consists in a mechanical adjustment system,
mounted parallel to the saw frame rise cylinder, to
reduce the passive phases of the operating cycle.
In other words it eliminates the idle stroke that takes
place when the size of the part to be cut is much
smaller than the maximum cutting capacity.
Practically, you adjust the starting position of the
blade in proximity of the part, independently of its
dimensions.
Operate as follows:
- Slightly open the flow regulation valve (A1).
- Bring the blade as near as 10mm from the work
piece with the bow up/bow down switches (C and
D).
- Loosen handle (7) to release the adjustable stop
(8) against the limit switch (9).
- Lock the handle (7)
ATTENTION:
- It is not necessary to adjust the mechanical stop
(8) every time; bring the blade near the workpiece
by means of bow switch (D) and then start the
automatic cutting cycle (F), which will begin
operation from this position of the blade.
- The bow will return to the upper end stroke.
7
5.5 Changing the blade
To change the blade:
- Lift the saw arm.
- Loosen the blade with the hand wheel, remove the
mobile blade-guard cover, open the flywheel
guards and remove the old blade from the
flywheels and the blade guide blocks.
- Assemble the new blade by placing it first between
the pads and then on the race of the flywheels,
paying particular attention to the cutting direction
of the teeth.
- Tension the blade and make sure it perfectly fits
inside the seat of the flywheels.
- Assemble the mobile blade-guide end, the
flywheel guard, and fasten it with the relative
knobs. Check that the safety micro switch is
activated otherwise when electric connection will
be restored the machine will not start.

5.6 Adjusting the blade to the flywheels

1. Loosen the hex nut screws A, B, and C.
2. Use an Allen wrench on set screw D to adjust
the tilt of the flywheel.
-Turning the setscrew D clockwise will tilt flywheel
so that the blade will ride closer to the flange.
-Turning the setscrew D counter-clockwise with tilt
the flywheels that the blade will ride away from the
flange.
If the blade rides away too far then it will come off.
After the adjustment is finished, fasten the hex nut
screws in this order: A, B, and C.
A Tilt in this direction will cause the
9
blade to ride towards the flange
8
Checking the adjustment of the blade
Use a strip of scrap paper and slide it between the
blade and the flywheel while it is running.
- 9 -
A
Set screw D
A Tilt in this direction will cause the
blade to ride away from the flange
Top view
flywheel
paper
Blade direction
TOP
B
C
Set screw D