47
II.
Adjustment of the saw blade
The saw blade must be perfectly centred on the rubber
coatings of the flywheels. If it is not the case, you must
change the upper flywheel inclination:
1. Loosen the lock nut (
57
).
2. Turn the adjustment screw (
58
):
−
Turn the adjustment screw (58) clockwise when
the saw blade tends to move frontally.
−
Turn the lock screw (58) anti-clockwise when the
saw blade tends to move backwards.
3. Tighten firmly the lock nut (
57
).
III. Adjustment of the upper blade guide
The upper blade guide is composed by:
- a support plate which bears the saw blade from behind,
- Two small hard metal plates, which drive the saw blade sideways.
These small plates must be adjusted every time you adjust or change the blade.
NOTICE
: Regularly check the plates and change them if necessary. The ones on the sides
must be replaced always at the same time.
1. Loosen the screw (
59
) to move the support plate (
60
) and to easily adjust it in the arrow
direction.
2. Loosen the screws (
61
).
3. Place the support (
62
) in order that the plates on the sides (
63
) are about 1 mm far from
teeth’s base.
4. Tighten the screws firmly (
61
).
5. Loosen the back thumb nuts (
64
).
6. By using the thumb nuts (
65
) move the small plates (
63
) in order that they touch the
blade lightly.
7. Turn clockwise saw blade’s upper flywheel by hand in order that the two plates (
63
)
settle in the correct position (they must touch the saw blade lightly).
8. Tighten the back thumb nuts firmly (
64
) while holding the thumb screws still (
65
).
9. Place the backup roll (
60
) in order that it touches lightly the saw blade.
10. Firmly tighten the lock screw (
59
).
Содержание F28-191
Страница 54: ...54 F28 191 SEGA A NASTRO VERTICAL BANDSAW...
Страница 56: ...56 SCHEMA ELETTRICO WIRING SCHEME...