Vari Liza DS-520, Инструкция по применению Инструкция по применению, Страница: 15 / 31

DS-520 Líza
DS-520H Líza
15
6.2 Tightening bolted connections.
Check bolted connections for proper tightening. Prior to any machine use, check
tightening and wear of the heads of bolts which fasten blades in the upper disk and the bolt
which fastens support plate to drive shaft.
6.3 Replacing and sharpening cutting blades.
If the cutting edges of working blades show wear or damage to blades results in
machine vibrations, the cutting edges must be renewed or the blades replaced.
,
The machine must be standing on a firm support and must be secured so that the
blade is easily accessible and an unexpected spontaneous machine motion cannot
occur.
,
Be very careful when dismounting the blades. Their cutting edges are sharp.
Protect your hands with working gloves.
,
The engine must be switched off and the cable end connector to spark plug
disconnected!
1. Hold the mowing disk so that it cannot turn. Dismount the blade bolted connection
by using spanner No. 17 and socket screw key No. 6.
2. Take the blade out, level and sharpen the cutting edges. Angle of the sharpened
cutting edges should be 30° with respect to the lower blade plane.
,
Should a blade be bent or showing considerable wear, you must always replace all
blades in the mowing disk!
3. Check all parts of the blade clamping to the mowing disk for their measure of wear.
Should the bolt heads or nuts show excessive wear, replace them.
Figure 4.1: Tightening pulley arm pin Figure 4.2: Travel wheel bearings
Figure 4: Lubrication points