PREVOST LE MIRAGE XLII BUS SHELLS Maintenance Manual Download

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Section 03: FUEL SYSTEM

PA1564

AIR CLEANER (DRY TYPE)

The vehicle is equipped with a dry-type
replaceable element air cleaner, located in the
engine compartment. Access the air cleaner
through the engine R.H. side door. Engine air
enters the air cleaner through (2) two intake
ducts located just above engine side doors. It
then flows through a pre-cleaner and finally
through the air cleaner. The pre-cleaner
removes dust and moisture by means of a
discharge tube at the bottom of the element. It is
in series with a replaceable impregnated paper
filter element (air cleaner).

9.1 PRE-CLEANER SERVICING

MAINTENANCE

The pre-cleaner is designed to be
self-cleaning; however, it should be inspected
and any accumulated foreign material
removed during the periodic replacement of
the impregnated paper filter element.

9.2 AIR CLEANER SERVICING

Stop the engine, open the R.H. side engine
compartment door, and loosen the wing nut
retaining the air cleaner element to the air
cleaner. Remove the element by pulling on the
handle in the center of the air cleaner element.

Install cleaner element as follows:

1. Inspect the gasket-sealing surface inside the

air cleaner. It must be smooth, flat and clean;

2. Install the air cleaner element;

3. Make sure that the element seals securely;

4. Inspect element cover gasket and replace if

necessary.

Whenever it becomes necessary to remove the
air cleaner assembly (dry type) for maintenance
or other repair in this area, great care should be
taken when installing air cleaner assembly.

The pre-filter should be installed snugly in the air
duct and clamped tightly to the air cleaner inlet
to prevent any dust infiltration into the air
cleaner.

9.3 GENERAL RECOMMENDATIONS

The following maintenance procedures will
ensure efficient air cleaner operation:

1. Keep the air cleaner housing tight on the air

intake pipe;

2. Make sure the correct filters are used for

replacement;

3. Keep the air cleaner properly assembled so

the joints are air-tight;

4. Immediately repair any damage to the air

cleaner or related parts;

5. Inspect, clean or replace the air cleaner or

elements as operating conditions warrant.
Whenever an element has been removed
from the air cleaner housing the inside
surface of the housing must be cleaned with
a soft clean cloth;

6. Periodically inspect the entire system. Dust-

laden air can pass through an almost
invisible crack or opening which may
eventually cause damage to an engine;

7. Never operate the engine without an element

in the air cleaner assembly;

CAUTION

Do not ignore the Warning given by the air
restriction indicator. This could result in
serious engine damage.

8. Store new elements in a closed area free

from dust and possible damage.

9.4 AIR CLEANER RESTRICTION INDICATOR

A resettable restriction indicator may be installed
on the engine air-intake duct, clearly visible from
the rear engine compartment. The indicator
monitors the vacuum level between the air filter
and the engine. A red marker is displayed when
the air filter is clogged and must be replaced.
Reset by pressing on the indicator's extremity.

PREVOST LE MIRAGE XLII BUS SHELLS, Maintenance Manual

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