Repairing; Troubleshooting - Stihl MSA 120 C Instruction Manual

18 Repairing

► File down the depth gauges with a flat file so
that they are level with the STIHL filing gauge
and parallel to the service mark. The STIHL fil‐
ing gauge must match the chain pitch.
► If you have any queries: Contact your STIHL
servicing dealer for assistance.
17.3 Chain Brake Maintenance
The chain brake cannot be serviced by the user.
► Have the chain brake serviced by a STIHL
servicing dealer at the following intervals:
– Full-time usage: every 3 months

19 Troubleshooting

19.1 Troubleshooting Chainsaw or Battery
Fault LEDs on the
battery
Saw does not 1 LED flashing
start when green.
switched on.
1 LED emits
red light.
3 LEDs flash
red.
3 LEDs light
up red.LEDs
light up red.
4 LEDs
flash red.
0458-716-0121-D
– Part-time usage: every 6 months
– Occasional usage: every 12 months
18 Repairing
18.1
The saw, guide bar, saw chain, battery and
charger are not user serviceable.
► If the saw, guide bar or saw chain is damaged:
Do not use your saw, guide bar or saw chain,
and contact your STIHL servicing dealer.
► If the battery has a malfunction or is damaged:
Replace the battery.
► If the charger has a malfunction or is dam‐
aged: Replace the charger.
► If the connecting cable has a malfunction or is
damaged: Do not use the charger and have
connecting cable replaced by a STIHL servic‐
ing dealer.
Cause
State of charge of the
battery is too low.
The battery is too
warm or too cold.
Malfunction in saw.
Chainsaw is too hot.
There is a fault in the
battery.
No electrical contact
between the chainsaw
and battery.
Saw or battery damp. ► Allow saw or battery to dry.
Repairing Chain Saw, Battery
and Charger
Remedy
► Charge the battery.
► Engage chain brake and remove battery.
► Allow the battery to cool down or warm
up.
► Engage chain brake and remove battery.
► Clean electrical contacts in the battery
compartment.
► Insert battery.
► Disengage the chain brake.
► Switch on the saw.
► If 3 LEDs continue to flash red: Do not
use your chainsaw and contact your
STIHL servicing dealer for assistance.
► Engage chain brake and remove battery.
► Allow the chainsaw to cool down.
► Engage the chain brake, remove and refit
the battery.
► Disengage the chain brake.
► Switch on the saw.
► If 4 LEDs continue to flash red: Do not
use the battery and contact your STIHL
dealer for assistance.
► Engage chain brake and remove battery.
► Clean electrical contacts in the battery
compartment.
► Insert battery.
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