Service
and
Maintenance
I
6.4.1
Cleaning Intervals
6.4 Combustion Air Filter
• The amount
of
dirt
in
the combustion air
filter depends on the amount
of
dust
in
the
airand the size
of
the airfilterused. Ifa high
level
of
dust is anticipated, a cyclone-type
pre-cleaner can be fitted
in
front
of
the
combustion air filter.
•
Cleaning
intervals
must
therefore
be
determined from case to case.
• If
dry
type air filters are used, cleaning
should only be carried out according to the
service indicator or service switch.
• Filter servicing is needed when:
- Service indicator
thered signal 1is fullyvisiblewhen theengine
is off.
-Serviceswitch
the yellowpilot lightcomeson when the en-
gine is running.
• After carrying out service work, press the
reset button on the service indicator. The
service indicatoris now ready for operation
again.
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