Repairing; Troubleshooting - Stihl 459-481 Instruction Manual

19 Repairing

► Block blade (1) using a piece of wood (2).
► Tighten screw (3) to 65 Nm.
18.2 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.

20 Troubleshooting

20.1 Remedying Lawn Mower or Battery Faults
Fault LEDs on the
battery
The lawn mower 1 LED flashes
does not start green.
when switched
on.
1 LED illumina‐
tes red.
3 LEDs flash
red.
3 LEDs illumi‐
nate red.
4 LEDs flash
red.
0478-131-9950-C
► Switch the lawn mower off, pull out the activa‐
tion key and remove the battery.
► Upend the lawn mower.
► Remove the blade.
► Sharpen the blade. Observe the sharpening
angle and cool the blade,
Bluing of the blade during sharpening is not
permitted.
► Attach the blade.
► If anything is unclear: consult a STIHL special‐
ist dealer.
19 Repairing
19.1
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 serv‐
icing 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.
Cause
The battery charge
state is too low.
The battery is too
warm or too cold.
There is a fault in the
lawn mower.
The lawn mower is
too warm.
There is a fault in the
battery.
Repairing the Mower and Bat‐
tery
Remedy
► Charge the battery.
► Pull out the activation key.
► Remove the battery.
► Allow the battery to cool down or warm
up.
► Pull out the activation key.
► Remove the battery.
► Clean the electric contacts in the battery
compartment.
► Fit the battery.
► Switch the lawn mower on.
► If 3 LEDs still flash red: do not use the
lawn mower and consult a STIHL spe‐
cialist dealer.
► Pull out the activation key.
► Remove the battery.
► Allow the lawn mower to cool down.
► Remove the battery and fit it again.
► Switch the lawn mower on.
English
21.2.
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