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24<br />
GB<br />
10. Servicing your mower<br />
Protective gloves must be worn at all times<br />
W during maintenance work.<br />
Checking operating safety<br />
Retighten all screws and nuts after the first few operating<br />
hours and from time to time thereafter. Check<br />
the condition and correct attachment of the cutter<br />
prior to each mowing in order to avoid accidents.<br />
If the cutter is blocked, e.g. by driving over an<br />
obstacle, have a check by your JOHN DEERE dealer<br />
whether parts of the mower are damaged or deformed.<br />
All required repairs should only be done by the<br />
JOHN DEERE dealer.<br />
Replacing and sharpening the blade ) + ≠<br />
Switch off engine and disconnect spark plug<br />
connector, put on safety gloves!<br />
– Turn the mower over onto its left side.<br />
– Insert a screwdriver* into the previously cleaned<br />
blade fastening screw (1) and unscrew whilst<br />
holding the blade.<br />
Remove the blade fastening screw (1), curved<br />
washer (2), washer (3), sliding washer (4), blade<br />
(5) and sliding washer (6) in sequence.<br />
WARNING<br />
The sliding washers may not come into contact<br />
with cleaning agent (e.g. cold cleaner) or oil and<br />
must be replaced from time to time.<br />
– A blunt cutter bar should be sharpened using a<br />
grinder as shown in the sketch since it will otherwise<br />
fall out of balance.<br />
It is recommended that re-sharpening of the<br />
blade be performed by at a specialised service<br />
station. We also recommended that after sharpening<br />
your dealer carry out measurement to check<br />
for imbalance. The blade cutting edges may only<br />
be ground until the value (see the sketch ≠) or<br />
the mark on the blade (ring), has been reached.<br />
– Only use original SABO blades for replacement<br />
purposes. Order no. SA33214<br />
– Blades must be marked permanentoly with name<br />
and /or trademark of the manufacturer or suplier<br />
and with the parts number. Blades may only be<br />
fitted according to the appropriate operating<br />
instructions of the respective mower.<br />
– Reassemble in reverse order, if necessary fit the<br />
curved washer and blower wheel with flange onto<br />
the shaft first. Ensure that the revolving edge of the<br />
sliding washer faces away from the blade bar. The<br />
raised ends of the blade should face the housing.<br />
– Tighten the blade fixing screw with a torque wrench<br />
to 40-45 Nm. Do not use an impact screwdriver.<br />
ATTENTION<br />
Do not leave any tools in the mower!<br />
W Before starting the mower check that<br />
all tools have been removed!<br />
* not supplied<br />
Servicing the wheels<br />
Front wheels<br />
Oil the bearings of the wheels once a year or every<br />
20 operating hours.<br />
– Remove wheel covers.<br />
– Loosen the hexagon head nuts using a socket<br />
spanner and remove the wheels.<br />
– After dribbling oil into the bearings, push on the<br />
wheels and retighten so that they are still able to<br />
rotate easily.<br />
Servicing the rear wheel drive ¡<br />
– Remove the transporter wheels from the wheel<br />
axle after removal of the wheel cover and<br />
loosening of the fixing nut.<br />
– Remove dirt and any grease from the wheel cover,<br />
from the free wheel pinion on the gear shaft and<br />
the drive pinion on the inside of the wheel.<br />
NOTE<br />
Do not remove the free wheel pinion from gear<br />
shaft.<br />
– Grease the pinion pair (free wheel pinion and<br />
drive pinion in the wheel) with a plasticscompatible<br />
multipurpose grease, e.g.<br />
FINA MARSON so that the toothed intermediate<br />
spaces are completely filled.<br />
– When pushing on the transporter wheel make sure<br />
that the pinions engage; it may be necessary to<br />
turn the wheel on the axle slightly.<br />
Servicing the drive “<br />
– It is absolutely essential that the Bowden cable is<br />
easy running for switching on and off, so that the<br />
control drive works perfectly.<br />
– Lubricate the Bowden cable every 10 hours of<br />
operation with thin mineral oil. Slightly bend the<br />
Bowden cable in the region of the point of lubrication<br />
for this purpose.<br />
– The Bowden traction mechanism has been set<br />
ready for operations at the works and requires no<br />
adjustment.<br />
Changing the drive V-belt<br />
– The drive V-belt must be replaced by a<br />
recommended expert workshop.<br />
11. Servicing the engine<br />
The prescribed maintenance and service work must<br />
be performed on a regular basis to ensure long and<br />
fault-free life of the engine.<br />
Keep the engine clean paying particular attention<br />
to the exterior. The perforated plate of the fan wheel<br />
must always be kept free from particles (e.g. grass<br />
cuttings) in particular. Never spray clean with water<br />
as this would result in damage to the ignition system<br />
and carburettor.<br />
Perfect cooling of the engine will only be<br />
guaranteed if the cylinder fins are always kept<br />
clean.<br />
Always lay the mower on the lefthand side for service<br />
work (tank and carburettor facing upwards)<br />
since otherwise there could be starting difficulties.<br />
Oil change <br />
The first oil change of a new engine is necessary after<br />
5 operating hours, and thereafter every 50 hours of<br />
operation or at least once per mowing season.