38
II.
Adjustment of the saw blade FIG.13
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
).
UPPER SAW BLADE GUIDE ADJUSTMENT FIG.14 - 15
Upper saw blade guide is composed of :
-
a support bearing (30) Fig.14 (which support the blade from the back),
-
two wheels (28) Fig.14 (which guide the blade sideways).
The support bearing and the side wheels must be adjusted each time the blade is replaced or adjusted.
Note: Check regularly if the wheels are worn out, and if necessary, replace them both at the same
moment.
Loosen screw (33) Fig.14 to free support bearing (30) in order that there is a gap of maximum 0,5 mm
between it and the saw blade.
1. Tighten screw (33).
2. Loosen screw (35) Fig.15.
3. Move the part (36) in order that the wheels (28) are about 1 mm behind teeth's base.
4. Tighten firmly screw (35)
5. Loosen screws (37).
6. Push the two wheels (28) in the direction of the saw blade until they come in contact with the saw
blade (saw blade musn't get stuck).
7. Tighten screws (37).
8. Make the upper wheel rotate clockwise by hand in order to place the wheels correctly (they must touch
lightly the saw blade).
LOWER SAW BLADE GUIDE ADJUSTMENT FIG.16
Lower saw blade guide is composed of :
-
a support bearing (31) Fig.16 (which support the blade from the back),
-
two pins (29) Fig.16 (which guide the blade sideways).
The support bearing and the side wheels must be adjusted each time the blade is replaced or adjusted.
Note: Check regularly if the wheels are worn out, and if necessary, replace them both at the same
moment.
1. Disassemble the workbench (7) Fig.1.
2. Move the saw blade protection (34) backwards.
3. Lower support bearing adjustment can be carried out by following the same instructions regarding
upper support bearing adjustment.
The two pins (29) support the saw blade only during cutting operations. When the machine works in no-load
condition, the saw blade mustn't touch the ball bearings.
4. Loosen screw (40)
Summary of Contents for F28-191A
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