Navistar ProStar+, Руководство по эксплуатации и обслуживанию, Страница: 232 / 304

Maintenance Instructions
It is recommended that the operator not reset the gauge until it
has been determined if air cleaner service is required.
The initial restriction with a new air filter element will vary with air
cleaner design and installation.
After servicing the filter element, reset the YELLOW indicator by
pushing the reset button and releasing it. The YELLOW indicator
will drop to near or below the window so the air restriction gauge
can be reused.
NOTE: After starting engine, indicator may be seen in lower
part of window. This is normal and should not be mistaken
as a signal for element service.
Air Cleaner Element Service
This vehicle comes with a selection of two air cleaner options.
The first option is a single element. The second option is a
dual element air cleaner that is available for applications in
excessively dusty environments that may require more frequent
service intervals. The secondary element is inside the primary
element and prevents contaminants from entering the engine
air intake system during service of the primary element, or in
cases where the primary element becomes damaged.
Both
options are serviced in a similar manner.
NOTE: Do not change the air cleaner element configuration
from the factory-installed configuration. If equipped with
a single element or dual element, that configuration must
stay with the vehicle. Failure to comply may affect engine
performance.
220