909 LS1620 Instruction Manual page 10

Over tensioning will reduce
blade life. Blade should be
tensioned so the blade is
straight, and deflection during
use is kept to a minimum.
Over tension will load the
motor excessively and will
prematurely break the blade.
7. Replace the table insert and
reset the foot and guard height.
Setting a plain blade in the adaptors.
1. Fit the plain blade into one of the adaptors so the small
grub screws align with the sides of the blade and the teeth
of the blade are in the same direction as the single hole in
the front of the adaptor.
2. With the blade inserted so as to
enter just past the grub screws,
tighten the grub screws on
to the blade so it is clamped
centrally in position
3. Fit the second adaptor on the
other end of the blade with the
same orientation as the first
and then locate the two adaptors and the blade into the
holder on top of the machine arm as shown in the picture.
The second adaptor has not been tightened so it can slide
on the blade so as the adaptors can locate.
4. Loosen the grub screws on the first adaptor and centrally
locate the blade between the adaptors by sliding the blade
one way or another.
5. When central, lock the grub screws of both adaptors on to
the blade.
6. Prepare the scroll saw as per points 1–-3 for installing the
blade.
7. With the teeth of the blade downward and towards the front
of the saw, pass the adaptor and end of blade through the
hole in the table and locate the pin on the adaptor over the
wide hook on the front of the lower arm.
8. Apply a slight upward pressure on the blade to ensure the
blade is locked in place.
9. With the lower blade adaptor securely attached to the
lower arm, keeping a slight upward pressure on the
blade, hook the top blade adaptor over the wide front
hook section of the top arm.
Note.
A slight downward pressure on the top moving arm
may be required to allow the blade adaptor to locate.
10. Proceed to tension the blade as per point 6 as detailed
in the pinned section of installing the blades
11. Replace the table insert and reset the foot and guard
height.
10