Troubleshooting - Stihl KGA 770 Instruction Manual

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Troubleshooting

Always remove the battery before carrying out any work on the power tool.
Condition
Machine does not start when switched on
Machine cuts out during operation
46
Cause
No electrical contact between power tool
and battery
Battery has low charge
(1 LED on battery flashes green)
Battery too hot / too cold
(1 LED on battery glows red)
Fault in battery
(4 LEDs on battery flash red)
Power tool too hot
(3 LEDs on battery glow red)
Electromagnetic problem or fault in
machine
(3 LEDs on battery flash red)
Moisture in power tool and/or battery
Battery or machine's electronics too hot Take battery out of machine, allow bat-
Electrical or electromagnetic malfunction Remove the battery and refit it
Thermal overload cutout has tripped –
brush contact pressure too high
Thermal overload cutout has tripped –
side broom or roller brush blocked
Remedy
Remove the battery, visually check con-
tacts and refit battery
Charge the battery
Allow battery to cool down / allow battery
to warm up slowly at temperature of
about +15 °C - +20 °C
Take the battery out of the power tool
and refit it. Switch on the machine – if the
LEDs continue to flash, the battery has a
malfunction and must be replaced.
Power tool is too hot – allow it to cool
down.
Take the battery out of the power tool
and refit it. Switch on the power tool – if
the LEDs still flash, the power tool has a
malfunction and must be checked by a
1)
servicing dealer .
Allow power tool / battery to dry
tery and machine to cool down
Adjust brush contact pressure to suit sur-
face being cleaned
Wait about 30 seconds for overload cut-
out to cool down.
Remove blockage
Wait about 30 seconds for overload cut-
out to cool down. If roller brush is
blocked, press switch to reset overload
cutout.
KGA 770