18 Repairing
► Position blade (3) so that the raised areas on contact
area (4) engage in notches (5).
► Screw in screw (2) together with washer (1).
► Block blade (1) using a piece of wood (2).
► Tighten screw (3) to 65 Nm.
17.2 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.
► Switch the lawn mower off, pull out the activation key and
remove the battery.
► Upend the lawn mower.
► Remove the blade.
► Sharpen the blade. Observe the sharpening angle and
cool the blade, @ 20.2.
Bluing of the blade during sharpening is not permitted.
► Attach the blade.
0478-131-9950-A
► If anything is unclear: consult a STIHL specialist dealer.
18 Repairing
18.1 Repairing the Mower and Battery
The mower, blade and battery cannot be repaired by the
user.
► If the mower or the blade is damaged: Do not use your
mower and contact your STIHL servicing dealer for
assistance.
► If the battery has a malfunction or is damaged: Replace
the battery.
► If safety labels are illegible or damaged: Have the labels
replaced by a STIHL servicing dealer.
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