11
8 Clutch
CVT is a continuously variable automatic V-belt transmission.
The cvt consists of two pulleys, a driving one (hereinafter
the centrifugal adjuster) and a driven one (the driven pulley).
The cvt regulates the transmission ratio by two parameters,
the rate of rotation (RPM) of the engine and the resistance to
movement of the tow. Depending on the combination of these
parameters while moving the tow a certain CVT transmission
ratio is automatically set. The centrifugal adjuster performs the
clutch function. When the engine rotational rate drops below
2200 rpm, the transmission of rotation from the engine shaft to
the transmission stops.
8.1 Comet CVT (ZM184)
As long as the CVT belt wears, wear products fall into the
places of sliding of bushings and the cvt rollers. This impairs
the performance of the cvt and can lead to overheating and
jamming. If a worn belt is replaced; or there visible deterioration
of the cvt performance, it is necessary to maintain the cvt.
8.1.1 Inspection and maintenance
1�
Remove the cover from SNOWDOG.
2�
Remove the belt from the cvt.
3�
Remove the bolt holding the cvt to the crankshaft
and remove the cvt.
4�
Disassemble the cvt by releasing the lock washer
and unscrewing the nut.
5�
Rinse the seats of cvt bushings, rollers and the
places of rolling of cvt rollers with gasoline.
6�
Lubricate with the ice-free lithium grease (e.g.
TEXACO STARPLEX EP 2) the sliding seats on the
shaft sleeve and cvt casing.
