Maintenance - Scheppach MS173-51 Original Bedienungsanleitung

• Allow the motor to cool before you put the
lawn mower in an enclosed area.
• In order to avoid fire hazards, keep the en-
gine, exhaust and the area around the fuel
tank free from grass, leaves and leaking
grease (oil).
Preparing the mower for long-term stor-
age
Caution: Do not empty the petrol tank in en-
closed areas, near fire or when smoking.
Petrol fumes can cause explosions and fire.
• Empty the petrol tank with a petrol suction
pump.
• Start the engine and let it run until any re-
maining petrol has been used up.
• Change the oil at the end of every season.
To do so, remove the used engine oil from
a warm engine and refill with fresh oil.
• Remove the spark plug from the cylinder
head.
• Fill the cylinder with approx. 20 ml of oil
from an oil can.
• Slowly pull back the starter handle, which
will bathe the cylinder wall with oil. Screw
the spark plug back in.
• Clean the cooling fins of the cylinder and
the housing.
• Be sure to clean the entire machine to pro-
tect the paint.
• Store the machine in a well-ventilated
place.
13.

Maintenance

• Regular, careful maintenance is required
to guarantee the safety level and perfor-
mance of the machine.
• Make sure that all nuts, bolts and screws
are tightened securely and that the ma-
chine is in safe working condition.
• Routinely check the grass basket for signs
of wear and impaired functionality.
Regularly clean the grass box with water
and let it dry thoroughly.
• For your own safety, replace worn or dam-
aged parts without delay.
• If the fuel tank should require emptying
this should only be done in the open air us-
ing a petrol suction pump (available from
DIY shops).
36 | GB
m WARNING
Never work on or touch conducting parts
on the ignition unit with the engine running.
Always pull the spark plug boot from the
spark plug before starting any work of care
or maintenance. Never perform any work on
the machine while it is running. Any work not
described in these Operating Instructions
must be performed by an authorized service
workshop only.
Wheel axles and wheel hubs
• These should be lightly greased once a
season.
Blade
For safety reasons you should only ever
have your blade sharpened, balanced and
mounted by an authorized service work-
shop. For optimum results it is recommend-
ed that the blade should be inspected once
a year.
Changing the blade (Fig. 17)
Only ever use original spare parts when
having the blade replaced.
Wear gloves when replacing the blade in or-
der to prevent injury.
Never have any other blade fitted.
• Empty the fuel tank before removing the
blade
• To replace the blade, undo the screw.
• Reinstall as illustrated in Fig. 17. Tighten
the screw properly. Tightening torque 45
Nm. When replacing the blade, the blade
screw should also be replaced.
Damaged blades
Should the blade, in spite of all precautions,
come into contact with an obstruction, shut
down the engine immediately and pull the
spark plug boot. Tip the lawn mower onto
its side and check the blade for damage.
Damaged or bent blades must be replaced.
Never attempt to bend a bent blade back to
straight again. Never mow the lawn with a
bent or heavily worn blade as this will cause
vibrations and can lead to further damage to
the lawn mower.
m CAUTION! There is a risk of injury if you
work with a damaged blade.
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