Maintenance - Stihl MS 194 T Instruction Manual

16 Maintenance

► Rotate the shroud lock (1) a half turn counter‐
clockwise.
► Remove the shroud (2).
► Remove the air filter (3).
► Knock out the filter (3).
► If the filter (3) is damaged. Install a new filter
(3).
► Blow out the filter with compressed air from
the clean air side.
3
► Install the filter (3).
► Place the shroud (2) in position.
► Rotate the shroud lock (1) clockwise until you
hear a click.
The shroud lock (1) is secure.
16 Maintenance
16.1 Maintenance intervals
Maintenance intervals depend on the ambient
conditions and the operating conditions. STIHL
recommends the following maintenance inter‐
vals:
Chain brake
► Have a STIHL dealer service the chain broke
in the following intervals:
– Full-time use: every three months
– Part-time use: every six months
– Occasional use: every year
After every 100 hours of operation
► Replace the spark plug.
Weekly
► Check the chain sprocket.
► Check and deburr the guide bar.
► Check and resharpen the saw chain.
0458-568-8321-B
1
3
2
2
Monthly
► Have the oil tank cleaned by a STIHL dealer.
► 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 Deburring the Guide Bar
A burr can build up on the outer edge of the
guide bar.
► Remove burr with a flat file or a STIHL guide
bar dressing tool.
► If you have any queries: Contact your STIHL
servicing dealer.
16.3 Sharpening the Saw Chain
Correctly sharpening saw chains requires a lot of
practice.
STIHL files, STIHL filing aids, STIHL sharpeners
and the brochure "Sharpening STIHL Saw
1
Chains" help you achieve the right results. To
obtain the brochure visit http://www.stihl.com/
sharpening-brochure.
STIHL recommends you have saw chains
resharpened by a STIHL servicing dealer.
WARNING
■ The chain's cutters are very sharp. There is a
risk of cut injuries.
► Wear work gloves made of durable mate‐
rial.
► File each cutter with a round file so that the
following points are observed:
– Round file matches the chain pitch.
– File from the inside to the outside of the cut‐
ter.
– Hold the file at right angle to the guide bar.
– Maintain a filing angle of 30°.
English
21