0478 131 9939 A - EN
52
– Mowing blades are blunt or worn
– Battery has exceeded service life
Remedy:
– Recharge battery (Ö 8.4)
– Adapt cutting height and mowing speed
to mowing conditions (Ö 9.4)
– Clean mower housing (Ö 13.2)
– Re-sharpen or replace mowing blade
(Ö 13.8)
– Replace battery (#)
Fault:
Battery gets stuck when inserting into
battery compartment
Possible cause:
– Guides or electric contacts in battery
compartment dirty
Remedy:
– Clean guides and/or electric contacts in
battery compartment (Ö 13.2)
Fault:
Battery is not charged although the green
LED on the charger illuminates green
Possible cause:
– Battery too cold or overheated (one red
LED illuminates on battery)
Remedy:
– Warm up or cool down the battery
(Ö 8.4). Store the charger in a closed,
dry place at a temperature of between
+5°C and +40°C.
Fault:
Charging fails to start after inserting
battery into charger
Possible cause:
– Battery too cold/too warm – 1 LED
illuminates red on battery
– No electrical contact between charger
and battery
– Charger power supply faulty
Remedy:
– Leave battery inserted in charger
Charging starts automatically as soon
as permissible temperature range is
reached.
– Remove and re-insert battery (Ö 8.2)
– Connect charger to mains (Ö 8.3)
– Check mains power supply
– Check charger, replace if necessary
(#)
Fault:
Battery is not charged, no LED illuminates
Possible cause:
– No electrical contact between charger
and battery
– Charger power supply faulty
Remedy:
– Remove battery from battery
compartment and reinsert (Ö 8.2)
– Connect charger to the mains (Ö 8.3)
– Check mains power supply
– Check charger, replace if necessary
(#)
Fault:
LED on charger flashes red
Possible cause:
– No electrical contact between charger
and battery
– Battery defective (4 LEDs on the
battery flash red for approx. 5 seconds)
– Charger defective
Remedy:
– Remove battery from battery
compartment and reinsert (Ö 8.2)
– Check battery, replace if necessary (#)
– Check charger, replace if necessary
(#)
21.1 Handover confirmation
21.2 Service confirmation
Please hand this instruction manual
to your STIHL specialist dealer in
the case of maintenance operations.
He will confirm the service operations
performed in the pre-printed boxes.
21. Service schedule
Service performed on
Next service date
21
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