0478 111 9823 E - EN
22
1
2.3 Cleaning the machine
Maintenance interval:
After each use
Care of the machine will protect it against
damage and extend its service life.
●
Select the highest cutting level. (
●
Detach the grass catcher box. (
Cleaning position MB 443, MB 443 T,
MB 448 T, MB 448 TX:
●
Hold the upper handlebar (1) and open
the quick-clamping devices – fold
downwards.
●
Set down the upper handlebar (1)
rearwards.
●
Open the discharge flap (2) and hold it
open.
●
Lift up the machine at the front and
place in the cleaning position as shown.
Cleaning position MB 448 TC,
MB 448 VC:
●
Stand to the right of the machine to tilt it
upwards.
●
Set the upper handlebar to the lowest
position (as far as the stop, the detent
lever does not engage in this position).
(
●
Open the discharge flap (2) with the
right hand and hold it open.
●
Hold the console with the left hand as
shown and hold the discharge flap
open. Press the detent lever (3) with the
thumb at the same time and hold.
●
Hold the machine with the right hand at
the front handle and tilt it slowly
rearwards until the handlebar is in
contact with the ground as shown.
●
Release the discharge flap (2) and
detent lever (3) and check that the
machine is standing securely.
Notes on cleaning:
●
Clean off dirt using little water, with a
brush or with a cloth. In particular, also
clean the mowing blade. Never spray
water onto engine components, seals
or bearing points.
●
First, remove accumulated clipping
deposits using a stick.
●
If necessary, use a special cleaner
(e.g. STIHL special cleaner).
1
2.4 Checking blade wear
Maintenance interval:
Before each use
●
Tilt the mower upwards into the
cleaning position. (
●
Clean the mowing blade (1).
●
Place a ruler (1) against the front blade
edge and measure permissible
grinding
A
.
●
Measure blade width
B
using a slide
calliper (2).
●
Check blade thickness
C
at 5 points at
least using a slide calliper (2). In
particular, minimum thickness must
also be ensured in the area of the blade
wings.
Wear limits:
Permissible grinding
A
:
<
1
5 mm
Blade width
B
:
> 39 mm
Blade thickness
C
:
> 2 mm
The blade must be replaced,
– if it is damaged (notches, cracks),
Risk of injury!
Stop the engine, detach the spark
plug socket and allow the machine
to cool down.
Empty the fuel tank (run empty)
before placing the machine in the
cleaning position.
The machine is only safely in the
cleaning position when the
discharge flap is open.
1
9
Risk of injury!
Blades are subjected to differing
degrees of wear depending on the
location and duration of use. If you
use the machine on sandy ground
or use it frequently under dry
conditions, the blade will be
subjected to greater loads and will
wear more quickly than the
average. A worn blade may break
off and cause serious injuries. The
instructions for blade maintenance
must therefore always be observed.
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Содержание MB 443 C
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