Travelling Wheels; Tyre Pressure; Machine Lubrication; Engine Oil Exchange - Vari DS-521D Bedienungsanleitung

Follow all instructions concerning maintenance and adjustment schedule. It is recommended that you keep a record of the amount of its working time
and conditions (for service needs). It is recommended to let one of our authorised service centres take care of the after-season maintenance, as well as
regular maintenance if you are not sure about your technical skills.

Check the nuts tightening the upper disc blades and nuts tightening the lower disc to the flange before each cutter use.

2.5.1 Travelling wheels

Travelling wheels create an important part of the cutter. Wheels carry the whole weight of the cutter, transfer engine power, and push the cutter into
mesh. Wheels have tyre tubes, which can be easily removed, in case of a defect, due to split rims connected with several bolts.

2.5.1.1 Tyre pressure

Tyre pressure has to be controlled in order to secure proper functioning and long life of the wheels, especially the tyres. Check the pressure before you
start using the cutter. Fill the pressure to MAX before putting the cutter out of service for a longer period of time. Keep equal pressure in right and left
wheels - it helps the cutter to keep a straight track.

Do not exceed the maximum tyre pressure – you risk a tyre explosion!
➢ MAXimum (recommended) tyre pressure: 21 PSI (144,7 kPa or 1,44 bar or 1,42 atm or 0,144 MPa)
➢
MINimum 58 allowed tyre pressure: 18 PSI (124,1 kPa or 1,24 bar or 1,22 atm or 0,124 MPa)
In case of permanent tyre pressure release, check and repair possible tyre defect.
 Seek authorised service in case you lack appropriate manual skills.

2.5.2 Machine lubrication

 Follow basic hygienic rules and environmental laws when working with lubricants.
 Seek authorised service in case you lack appropriate manual skills.
Smooth and easy movement of all mechanical parts requires adequate lubrication. Several drops of oil are usually sufficient (e.g. Bicycle oil). The
gearbox is filled with sufficient amount of oil during manufacturing and it does not require filling during the whole machine life.

2.5.2.1 Engine oil exchange

Follow the engine user manual instructions. If you use the cutter in a dusty environment, shorten the exchange period by half. When pouring the oil
out of the engine tilt the cutter on its filler and oil dipstick side or dismantle the whole engine.
 Seek authorised service in case you lack appropriate manual skills.

2.5.2.2 Lubricating points

There is no need to dismount any covers from the machine when lubricating the cables on the handlebars. You can reach other lubricating points after
dismounting the plastic covers. You can use any kind of engine, transmission or spray oil. Any kind of lubricant grease for water pumps is fully sufficient.
For its application, however, it is usually necessary to dismantle the appropriate sliding sealing.
Note: When using graphite grease, the seasonal lubrication intervals can be extended up to 25 hours.
Lubricating point – description
Bowden cables
Disc drive pulley casing
Wheel drive clutch pulley
Axle
Cam
Bolted connections
Tab. 6: Lubricating intervals

2.5.3 Work blades service and exchange

 Seek authorised service in case you lack appropriate manual skills.
If the work blades are deteriorated or damaged and causing cutter vibrations, it is necessary to renew or exchange the blades
Note: he manufacturer bears no responsibility for damages caused by/on the cutter in case of a botched-up blades repair or when original parts are not
used. A sign identifying the manufacturer is imprinted in the blade and it is used as a proof of a genuine part.

The cutter must be secured from unexpected spontaneous movement and stand on a safe pad to allow adequate access to the blade.
 Pay special attention when dismounting the blades. The cutting blades are sharp. Protect your hands with work gloves.
 The engine must be off and the end of the spark plug cable must be taken off!
Proceedings:
58 Tyre pressure lower than minimum damages the tyre construction and shortens its life.
59 The blades are double-sided; they can be turned around if necessary. The blades must never be damaged.
Seasonal interval After the season Lubricant
min 2x (5 drops)
every 10 hours (2 drops)
every 10 hours (2 drops)
every 10 hours (2 drops)
every 10 hours (2 drops)
-
Picture Note
yes oil Pict.10 Cable entrance into cable housing
yes oil/grease Pict.7
yes oil/grease Pict.6
yes oil/grease Pict.8
yes oil Pict.9
yes grease -
DS-521D, DS-521DB
After nut and washer dismounting.
Contact area with frame.
Lubricating opening in the left half-axle
Handlebars and side screen attachment
59 .
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