Maintenance And Cleaning - Scheppach MS139-42 Originalbetriebsanleitung

mowing, the debris bag (16) is full and should be
emptied. To ensure that the filling level indicator
works properly, the holes under the flap must be kept
clean and permeable.
As soon as grass clippings start to trail the lawn mo-
wer, it is time to empty the grass basket.
m WARNING
Before taking off the grass basket, switch off the
engine and wait until the blade has come to a
stop.
To take off the grass basket (16), use one hand to
lift up the chute flap (15) and the other to grab onto
the basket handle (Fig.16). Remove the basket. For
safety reasons, the chute flap (15) automatically falls
down after removing the grass basket and closes off
the rear chute opening.
If any grass remains in the opening, it will be easier
to restart the engine if you pull the mower back
approx. 1 meter. Do not use your hands or feet to
remove clippings in or on the mower housing, but
instead use suitable tools such as a brush or a hand
broom.
In order to ensure that the majority of grass clippings
are picked up, the inside of both the grass basket
(16) and especially the air grill must be cleaned after
each use. Reattach the grass basket (16) only when
the engine is switched off and the blade is stopped.
Using one hand, lift up the chute flap (15), while
grabbing onto the basket handle with the other.
Hang in the basket from the top. Fig. 9
After mowing
• Allow the engine to cool before you put the lawn
mower in an enclosed area.
Remove grass, foliage, grease and oil before
storing the mower. Do not place any objects on top
of the mower.
• Check all the screws and nuts once more before
you start to use the lawn mower again. Tighten
any loose screws.
• Also be sure to empty the grass basket (16).
• Pull the spark plug boot to prevent unauthorized
use.
• Ensure that you do not park the mower next to
any source of danger. Petrol fumes can lead to
explosions.
• Only original parts or parts approved by the
manufacturer may be used for repairs (see
address on the warranty certificate).
• If the lawn mower is not going to be used for an
extended period, empty the petrol tank using a
petrol suction pump.
• Oil and maintain the machine.

9. Maintenance and cleaning

• Regular, careful maintenance is required to gu-
arantee the safety level and performance of the
machine.
• Make sure that all nuts, bolts and screws are
tightened securely and that the machine 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 damaged
parts without delay.
• If the fuel tank should require emptying this should
only be done in the open air using a petrol suction
pump (available from DIY shops).
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.
Pay attention to moving knife assemblies.
Cleaning
The lawn mower should be thoroughly cleaned after
every use, especially the underneath and the blade
mount. To do so, tip the lawn mower onto its left side
(the opposite side to the oil filling socket).
m Note!
Before you tip the lawn mower onto its side,
completely empty the fuel tank using a petrol suction
pump. The lawn mower must never be tilted by more
than 90 degrees. Dirt and grass is easiest to remove
immediately after you have finished mowing the grass.
Dried on grass and dirt can result in poorer mowing
performance. Check that the grass chute is free of any
residual grass. Remove any such residue. Never clean
the lawn mower with a water jet or high-pressure clea-
ner. The engine must remain dry. Do not use aggressive
cleaning agents such as cold cleaner or petroleum
ether.
Wheel axles and wheel hubs
• These should be lightly greased once a season.
Blade
For safety reasons you should only ever have your bla-
de sharpened, balanced and mounted by an authorized
service workshop. For optimum results it is recommen-
ded that the blade should be inspected once a year.
Replacement number:
Changing the blade (Fig.17)
Only ever use original spare parts when having the
blade replaced.
Wear gloves when replacing the blade in order 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 repla-
ced.
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
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