Maintenance - Stihl MS 500i Instruction Manual

16 Maintenance

WARNING
■ Cleaning agent may cause irritation if it con‐
tacts the skin or eyes.
► Observe the information supplied with the
cleaning agent.
► Avoid contact with cleaning agents.
► In case of contact with the skin: Wash affec‐
ted areas with plenty of water and soap.
► In case of contact with the eyes: Rinse eyes
with plenty of water for at least 15 minutes
and seek medical advice.
► Spray the outside and inside of the air filter
(3) with STIHL special cleaner or a cleaning
agent with a pH value higher than 12.
► Allow STIHL special cleaner or cleaning agent
to act for 10 minutes.
► Use a soft brush to clean the outside of the air
filter (3).
► Rinse the outside and inside of the air filter (3)
under running water.
► Allow air filter (3) to dry in the air.
3
► Push the air filter (3) into place by hand.
► Fit the filter cover (2).
► Rotate the filter cover lock (1) clockwise until
you hear a click.
The filter cover lock (1) is secure.
15.4 Cleaning the Spark Plug
► Shut off the engine and engage the chain
brake.
► Allow chainsaw to cool down.
4 3
2
► Rotate the filter cover lock (1) a quarter turn
counterclockwise.
► Remove the filter cover (2).
0458-809-0121-B. VA0.A21.
1
► Rotate the shroud lock (1) a quarter turn coun‐
terclockwise.
► Remove the shroud (4).
► Pull off the spark plug boot (5).
► If area around the spark plug is dirty: Clean it
with a damp cloth.
► Unscrew the spark plug.
► Clean the spark plug with a damp cloth.
► If the spark plug is corroded: Install a new
spark plug.
► Fit the spark plug and tighten it down firmly.
► Position the spark plug boot (5) so that the lug
(6) points vertically upwards.
► Press the spark plug boot (5) firmly home.
► Place the shroud (4) in position.
1
► Rotate the shroud lock (3) clockwise until you
2
hear a click.
The shroud lock (3) is secure.
► Fit the filter cover (2).
► Rotate the filter cover lock (1) clockwise until
you hear a click.
The filter cover lock (1) is secure.
16 Maintenance
16.1 Maintenance Intervals
The maintenance intervals are dependent on the
environmental and operating conditions. STIHL
recommends the following maintenance inter‐
vals:
Chain brake
► Have the chain brake serviced by a STIHL
servicing dealer at the following intervals:
– Full-time usage: every 3 months
– Part-time usage: every 6 months
5
– Occasional usage: every 12 months
After every 100 hours of operation
► Install a new spark plug.
Weekly
► Check the chain sprocket.
► Check and deburr the guide bar.
► Check and sharpen the saw chain.
Monthly
6
5
English
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