Cleaning; Maintenance; Repairing; Troubleshooting - Stihl FS 261 Instruction Manual

15 Cleaning

► Tighten down the wing screw (1) firmly.
► Ensure that the following conditions are met
when storing the brushcutter:
– The brushcutter is out of the reach of chil‐
dren.
– The brushcutter is clean and dry.
► If you store the trimmer for more than 30 days:
► Remove the cutting attachment.
► Open the fuel tank cap.
► Drain the fuel tank.
► Close the fuel tank.
► If a manual fuel pump is fitted: Press the
manual fuel pump at least 5 times.
► Start the engine and run it at idling speed
until it stops.
15 Cleaning
15.1 Cleaning the Trimmer
► Shut off the engine.
► Allow trimmer to cool down.
► Clean the trimmer with a damp cloth or STIHL
resin solvent.
► Clean cooling air slots with a soft brush.
15.2 Cleaning the Deflector and Cut‐
ting Attachment
► Shut off the engine.
► Clean the deflector and cutting attachment
with a damp cloth or a soft brush.

16 Maintenance

16.1 Maintenance intervals
Maintenance intervals depend on the ambient
conditions and the operating conditions. STIHL
recommends the following maintenance inter‐
vals:
Before mounting a cutting attachment

18 Troubleshooting

18.1 Troubleshooting the Brushcutter
Most problems can be attributed to the same cause.
► Carry out the following measures:
► Replace the air filter.
► Clean or replace the spark plug.
► Adjust the idle speed.
► Adjust for winter or summer operation.
► If the problem continues: Carry out the measured listed below.
Fault
The engine does not
start.
0458-837-0101-A
Cause
There is not enough
fuel in the fuel tank.
► Check whether gear grease has leaked from
the shaft.
► If gear grease has leaked out: Have the level
in the gear housing checked by a STIHL serv‐
icing dealer.
After every 100 hours of operation
► Replace the spark plug.
Monthly
► Have the fuel tank cleaned by a STIHL dealer.
► Have the pickup body in the fuel tank cleaned
by a STIHL dealer.
Annually
► Have the pickup body in the fuel tank replaced
by a STIHL dealer.
16.2 Sharpening and Balancing a
Metal Cutting Attachment
Correctly sharpening and balancing metal cutting
attachments requires a lot of practice.
STIHL recommends you have metal cutting
attachments resharpened and balanced by a
STIHL servicing dealer.
► Sharpen the metal cutting attachment as
described in the instructions and on the pack‐
aging supplied with the cutting attachment you
are using.

17 Repairing

17.1 Repairing the Trimmer and
Cutting Attachment
The trimmer and cutting attachment cannot be
repaired by the user.
► If the trimmer or cutting attachment is dam‐
aged: Do not use your trimmer or cutting
attachment and contact your STIHL servicing
dealer.
Remedy
► Prepare fuel mix and refuel the trimmer.
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