Vari Liza DS-520, Инструкция по применению Инструкция по применению, Страница: 16 / 31

DS-520 Líza
DS-520H Líza
16
4. Screw the bolt back into the mowing disk, place the filler, blade and flat washer.
Than screw on the nut.
5. Hold the bolt head with socket screw key No. 6 and tighten the nut. All blades must
freely rotate on the bolts.
The blades have cutting edges on both sides; when one side is worn out, the blade can be
reversed and the cutting edge of the other side can be used. When replacing the blade,
replace also all damaged parts of the blade clamping in the mowing disk (see Fig. 5).
Note: The manufacturer does not answer for damages caused by the machine if the
blades were repaired by unskilled persons without the use of the original spare parts. There
is a “VARI“ stamp on the blade, which identifies the manufacturer and is at the same time a
control mark indicating that the blade is an original spare part.
6.4 V-belt replacement and adjustment of tightening pulley.
V-belt should be replaced according to its wear (cracked sides, torn belt, sides worn out
down to belt carrier fibres, belt “pulled out” of shape) or after about 100 hours of operation
at the maximum. In this machine, belt pulled out to maximum is considered a belt in which
the distance between the internal belt surfaces is less than 7 mm (with the lever of mowing
disk drive clutch pressed). The replacement procedure is as follows:
a) Drain petrol from the engine tank. Dismount the accelerator lever (2x spanner No. 8)
from the handlebars. Bowden cable should never be dismounted from the steering
system on the engine!
b) Unscrew three safety nuts (spanner No. 13) on the engine flange and pull the engine out
from the machine frame upwards. Never use force to pull the engine out from the frame!
,
Never put the engine on the side. Oil might get into the exhaust or into the air
cleaner. The best engine placing is with the lower flange dwelling on two lintels,
which are at least 7 cm high.
Figure 5: Clamping of the blade on the mowing disk
Nut M10 ČSN 021492.25
Order.No. 195 527
Washer 11 ČSN 021729.05
Order.No. 195 528
Blade
Order.No.189 060
Washer
Order.No.189 587
Bolt M10x30 BN 1206
Order.No. 189 595