Stihl RM 248 Manual De Instrucciones página 43

11.5 Maintaining the mowing
blade
Risk of injury!
Observe the safety instructions in
the section "For your safety". (
We recommend that you have the
mowing blade sharpened by a
specialist dealer.
Removing the mowing blade:
For removal, use a wooden block (1)
(approx. 60 x 60 mm) to counterhold the
mowing blade (2).
● Loosen and unscrew the blade
fastening screw (3). Remove the blade
fastening screw (3), washer (4) and
mowing blade (2).
Sharpening the mowing blade:
Risk of injury!
Always wear safety glasses and
gloves when sharpening.
● Cool the mowing blade when
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.
● The cutting angle of 30° must be
observed.
● Observe the wear limits when
sharpening.
Risk of injury!
The mowing blade must be
replaced if notches or cracks are
detected or if a wear limit is
reached ( 11.4).
0478 111 9939 A - EN
Installing the mowing blade:
For installation, use a wooden block (1) to
16 counterhold the mowing blade (2).
The tabs on the underside of the
blade prevent incorrect installation.
4.)
● Secure the blade fastening screw (3)
with Loctite 243.
● Fit the mowing blade (2) with the curved
edges pointing upwards onto the blade
bushing (5).
● Fit the retaining washer (4) and tighten
with the blade fastening screw (3) to
60 - 65 Nm.
Risk of injury!
The prescribed tightening torque
for the blade fastening screw must
be observed.
The retaining washer (4) must be
replaced each time the blade is
installed.
The blade fastening screw (3) must
be replaced each time the blade is
replaced.
11.6 Storage (winter break)
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).
● 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.
12. Transport
12.1 Transporting
Risk of injury!
Observe the section "For your
safety" before transporting. (
Carry the machine only with the
help of a second person. Always
wear suitable safety clothing
(safety shoes, thick gloves).
Detach the spark plug socket
before lifting or transporting.
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4.)
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