Maintenance
43
Cutting blades (5)
The cutting blades should move easily. To ensure this, al-
ways keep the pivotal point (
3
) clean. Never mow when the
cutting blades are stuck.
Caution!
To prevent imbalance, replace or reverse the cut-
ting blades in pairs only!
The cutting blades are reversing blades. Reverse both cutting
blades
– When one of the wear markings (
1
) (1) is reached.
– when the other side of the cutting blade has not been used
yet.
The cutting blades and fastening parts must be changed
– When one of the wear markings (
1
) (1) of the second cut-
ting edge is reached.
– when the thickness of the cutting blade at any point is be-
low 1 mm (except cutting edge).
Mulching blade (6)
The mulching blade and fastening parts must be changed
– When one of the wear markings (
1
) was reached.
– when the thickness of the blade at the rear edge (
2
) or at
any other point is below 1 mm (exception: cutting edge).
Original blade
An original AS-blade is engraved with:
AS GXXXXXXXX or EXXXXX
The engraving shows the spare part number.
Checking the condition of the cutting blade screws
Warning
A worn screw head can result in loosening of the knife
blades.
► Check the screws for fastening the knife blades!
3
X
Fig. 38:
The screw head (3) wears off during mowing and must be re-
placed before it is down to a thickness of 2 mm.
To prevent imbalance replace the cutting blade screws in
pairs only!
Checking the blade brake clutch
Inspection by an authorized service center.
After declutching, the blade must come from full speed to a
standstill in less than 5 seconds.
Motor warten
Caution
If the speed is set too high, objects can be ejected. The
engine can be damaged and a higher lever of noise pollu-
tion is produced.
► Do not change the basic setting of the carburetor or the
speed control.
The engine manufacturer has prepared an operating manual
for the engine. This manual contains all maintenance require-
ments and warranty conditions for the engine. If warranty
work on the engine is required, contact your authorized ser-
vice center or an authorized dealer for engines.
To ensure a long service life of the engine, sufficient engine
cooling is required.
Keep the
- engine cover (ventilation grid),
- the muffler (protective grid) and
- the cooling fins of the enigine
clean at all times.
Opening the engine cover
Warning
The engine cover can accidentally close.
► Make sure that the engine cover stays open while you
carry out work to the engine. Close the engine cover im-
mediately after you have completed maintenance work
to the engine.
Warning
Burn hazard from hot surfaces.
► Let the device cool down for at least 20 minutes before
you open the engine cover.
1
To carry out maintenance work to the engine, slacken the
screws (
1
) and open the engine cover.
Summary of Contents for AS 940 SHERPA 4WD RC
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