16.2 Removing and Attaching the
Blade
16.2.1 Removing the Blade
► Stop the engine.
► Detach the spark plug socket.
► Upend the lawn mower.
► Hold blade (1).
► Unscrew bolt (2) and remove together with
washer (3).
► Remove blade (1).
► Discard bolt (2) and washer (3).
Use a new bolt and washer to attach blade (1).
16.2.2 Attaching the Blade
► Stop the engine.
► Detach the spark plug socket.
► Upend the lawn mower.
► Place new washer (1) on new bolt (2).
► Apply Loctite 243 thread locker to the thread
of bolt (2).
► Position blade (3) so the raised areas on the
contact area engage in the notches in
blade (3).
► Screw in bolt (2) together with washer (1).
► Hold blade (3).
► Tighten bolt (2) to 65 Nm.
16.3 Sharpening and Balancing the
Blade
Sharpening and balancing the blade correctly
requires a lot of practice.
STIHL recommends having the blade sharpened
and balanced by a STIHL specialist dealer.
WARNING
■ The cutting edges of the blade are sharp. This
may result in the user cutting themselves.
► Wear work gloves made from resistant
material.
► Stop the engine.
► Detach the spark plug socket.
► Upend the lawn mower.
► Remove the blade.
► Sharpen the blade. Observe the sharpening
angle and cool the blade, 19.2.
Bluing of the blade during sharpening is not
permitted.
► Attach the blade.
► If anything is unclear: consult a STIHL special‐
ist dealer.
17 Repairing
17.1 Repairing the Lawn Mower
The user should not repair the lawn mower or
blade themselves.
► If the lawn mower or blade is damaged: do not
use the lawn mower or blade and consult a
STIHL specialist dealer.
► If warning signs are illegible or damaged: have
the warning signs replaced by a STIHL spe‐
cialist dealer.
17 Repairing English
0478-111-9655-A 31
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