Operator`s manual

MAINTENANCE AND LUBRICATION
439
CAB AIR FILTERS
Air going into the cab passes a filter located on the right, front side of
the cab. Remove the filter and check it every 19,200 km (12,000 miles).
The filter should not be cleaned and reused. Replace with a new filter
as necessary. Change the filter more often if driving in dusty
conditions. A clogged filter decreases the efficiency of the air
conditioning system.
If the vehicle is equipped with a sleeper heater-A/C, there is a filter for
recirculating air. It is located behind the passenger seat on the bunk
support. The filter should be checked after 19,200 km (12,000 miles),
more often in dusty conditions. Replace the filter as necessary.
To inspect or to change the filter, open the luggage storage lid and pull
out the filter.
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