Vittorazi Motors Easy100 Owner's Manual page 20

7.10 Reduction drive Easy100
The reduction Easy100 has been projected with an additional bearing to the pinion
(smaller pulley) to assure that the traction of the belt cannot harm the inside bearings of
crankshaft; attention what just says, it doesn't implicate that it is possible to bring a
strong tension to the belt.
We now consider how to make maintenance to the reduction gear.
Loosen the screw of 8mm that is on the side of the plate (1), then the back screw that
the stops the eccentric (2), subsequently to remove tension from the belt, making to
rotate the eccentric counterclockwise by the screw of 8mm superior (3). Now we can
remove the 5 screws of 5mm that fix the pinion cover (4) and extract this last.
The ordinary maintenance of the reduction gear consist: cleaning if necessary the two
pulleys (small and big) and the belt with belt spray cleaner, verify the conditions of the
two bearings of the big pulley and of the bearing of the pinion, the condition of usury of
the belt (lasted average of 100-150 hours).
A last important shrewdness consists in the measurement of the housing where lodges
the bearing of the pinion. In origin the measure of the center is of 22.00mm. When this
diameter, cause rubbing will reach or overcome the measure 22.20mm, it will need to
replace the pinion (of the same dimension, branded on the frontal part
40/41/42/43/44/45 mms). From our experience, the measurement of the center of the
bearing must have effected every 25 hours.
The assemblage of the system reduction must be done, following the inverse sequence,
therefore: insert the pinion cover (4), stop the relative screws of 5 mms, give tension to
the belt through the central screw in clockwise sense (3), stop the eccentric with the side
and back screw (2-1).
The tension of the belt transmitted through the central bolt of 8mm (3), doesn't have
to be excessive.
To avoid this drawback use a torque wrench regulated to 9-10 Nm making rotate the
eccentric in clockwise sense. Attention: check before that the eccentric is free in its
rotation.
7.10 / reduction drive Easy100
20