Machine Lubrication; Engine Oil Exchange; Lubricating Points; Work Blades Service And Exchange - Vari DS-521D Bedienungsanleitung

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. 5: 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:
1) Hold the upper disc so that it does not spin and use tubular wrench n.16 to dismount the bolted connection of the blade. First unscrew the nut,
than the bolt.
2) Take the blade and its parts out of the cutting disc. Align the blades and sharpen them. The blade slope should hold 30º angle with the bottom
blade level.
3) Check all blade parts for visible marks of damage. In case of damage, exchange the part with a new one.
4) Tighten the blade seating back. Tighten the bolt firmly
 If some of the blades are bended or deteriorated you must exchange all cutting disc blades!
2.5.4 Belt transmission – automatic brake
The cutter is equipped with modern belts that do not require special care. It is only necessary to control them regularly and exchange them should you
see cracks or breaks on their surface. It is necessary to check on the tightening pulleys setting after the first 5 hours of operation, as the belt is being run-
in. It is necessary to check the tightening pulleys function during the running-up, in order to prevent belt damage caused by insufficient tension when the
belt extends. It is also important to check the function of the automatic disc brake during the running-up.
The correct belt transmission function is easy to check:
a) Turn on the wheel drive and let the cutter deal with a 10 cm terrain obstacle – e.g. a kerb.
b) The engine stalls when you press the wheel drive clutch quickly. The belt already starts to grip (the disc starts spinning) in just 1/3
step of the wheel drive clutch lever.
If you had problems with at least one of these, the tightening pulleys need adjustment.
58 The blades are double-sided; they can be turned around if necessary. The blades must never be damaged.
59 Insufficient bolt tightening usually destroys the hardened washer around which the blades spin.
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)
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59
Picture Note
yes oil Pict.10 Cable entrance into cable housing
yes oil/grease
yes oil/grease
yes oil/grease
yes oil
yes grease
. Secure the bolt from loosening with a nut.
Pict.7 After nut and washer dismounting.
Pict.6 Contact area with frame.
Pict.8 Lubricating opening in the left half-axle
Pict.9
- Handlebars and side screen attachment
DS-521D
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58
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