Vari Hurricane F-600, Instructions For Use Manual, Page: 21 / 41

F-600
21
Figure 13: Adjustment of wheel drive tension pulley
6.5 Setting up pulley wires, blade brake.
In order to guarantee low operating forces on levers which control the drive switching, it
is advisable to lubricate the wires in Bowden cables at least 2x during the season with some
of oils available in atomizer (e.g. SILKAL, MD Spray, WD40). Correct functioning of the
machine also requires the correct adjustment of drive controls.
When adjusting the wires, always use the adjustment bolts on the handlebars crossbar
first (see Fig. 14 on the right); only after you can’t use the thread of the adjustment bolt, use
the adjustment bolts on the machine chassis (see Fig. 14 on the left). Use two flat spanners
No. 10 or No. 9 (in accordance with the size of the used M6 nut) to tighten the safety nuts of
the adjustment bolts. Tighten the nuts with care. If there is no more pitch to be used in the
adjustment bolts, it is possible to move the hook on the cable to another hole in the tension
pulley arm (see Fig. 12 & 13), so that the wire prestressing can be adjusted with the bolt
again.
Wires in the Bowden cables of blade brake and in the Bowden cable of automatic brake
must always exhibit a slight slackness of about 1 mm (with the levers released) so that the
performance of brakes is satisfactory. In order to achieve a clearance of the wire in the
Bowden cable, adjustment bolts have to be
screwed into
the chassis or handlebars crossbar
during the adjustment.
Wires in the pulley Bowden cable and in the Bowden cable of machine travel clutch
must be without slackness, slightly tense. In order to make the wires tense, the adjustment
bolts have to be
screwed out of the chassis or from the handlebars crossbar during the
adjustment.
V-belt
Driven pulley of
wheel drive
Tension pulley
Driving pulley (on
the engine)
Left guiding bolt
Right guiding bolt