Stihl TS 400 Manual page 40

STIHL TS 400
• Remove prefilter from filter cover.
- Wet prefilter must be dried, then
knocked or blown clean.
Note: The prefilter must be replaced
immediately if damaged.
- Remove coarse dirt on inside of
filter cover.
- Replace prefilter in filter cover so
that the fixing pin projects into the
opening in the prefilter.
• Unscrew the filter housing
screws.
- Remove filter housing.
• Draw main filter out of filter
housing.
Note: The main filter must be
replaced if soiled. The auxiliary filter
must be replaced at the same time.
• Remove auxiliary filter from filter
base.
Note: Auxiliary filter must be
replaced immediately if flock
covering is damaged.
- Clean filter chamber.
The parts are reassembled in
reverse order.
Note: Check gasket in filter housing
and replace if necessary.
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