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12.3 Removing and installing the
blade
● Tilt the mower upwards into the
cleaning position. (
12.1)
Removing:
● Unscrew blade fastening screw (1)
using an A/F 17 spanner.
● Remove blade (2) together with blade
fastening screw (1) and retaining
washer (3).
Installing:
Risk of injury!
The blade (2) must only be installed
as shown. The curved wings must
point upwards.
Observe the specified torque when
tightening the blade fastening
screw, as the secure attachment of
the cutting tool depends on this.
Additionally secure blade fastening
screw (1) with Loctite 243.
Replace spring washer (3) each
time the blade is installed and blade
fastening screw (1) each time the
blade is replaced.
● Clean the blade contact surface and
blade bushing.
● Install blade (2) with the curved wings
pointing upwards (towards the
machine).
● Install blade fastening screw (1) with a
new retaining washer (3) and tighten.
Tightening torque:
60 - 65 Nm
42
12.4 Sharpening the mowing blade
16
If you do not have the necessary expertise
17
or auxiliary equipment, we recommend
that you have the blade sharpened by a
specialist dealer. Operation of the machine
is impaired in the case of an incorrectly
sharpened blade (incorrect sharpening
angle, imbalance etc.).
Sharpening instructions
● Remove the mowing blade. (
● Cool the mowing blade during
sharpening, e.g. with water.
The blade must not be allowed to
display blue colouring, as this would
reduce its cutting quality.
● Sharpen blades evenly to prevent
vibration due to imbalance.
● Observe a sharpening angle of 30°.
● Observe the wear limits (
12.5 Engine
Maintenance interval:
See engine instruction manual.
General information:
Observe the operating and maintenance
instructions in the attached engine
instruction manual.
To achieve a long service life, it is always
particularly important to maintain a
sufficient level of oil and to change the oil
and air filter regularly.
The recommended oil change intervals as
well as information on engine oil and oil
capacities can also be found in the engine
instruction manual.
The cooling ribs must always be kept clean
to ensure that the engine is adequately
cooled.
12.6 Wheels and gearbox
The wheel bearings are maintenance-free.
The gearbox is maintenance-free.
12.7 Storage (winter break)
12.3)
Note the following points when storing the
machine for long periods (winter break):
● Clean all external parts of the machine
with care.
● Thoroughly lubricate/grease all moving
parts.
● Empty the fuel tank and carburettor
(e.g. by running empty).
12.2).
● Unscrew the spark plug (see engine
instruction manual) and pour approx.
3 cm³ of engine oil into the engine via
the spark plug hole. Turn the engine
several times with the spark plug
removed (pull the recoil starter rope).
Fire hazard!
Keep the spark plug socket away
from the spark plug hole due to the
danger of ignition.
● Screw the spark plug back in (see
engine instruction manual).
● Perform an oil change (see engine
instruction manual).
● Store the machine in a dry and locked
place that is generally free of dust.
Make sure that it is out of the reach of
children.
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