PREVOST X3-45 2016 Maintenance Manual Download

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Section 03: FUEL SYSTEM

PA1593

CAUTION

ULSD fuel is necessary to avoid fouling the
engine’s Exhaust Aftertreatment System.
Improper fuel use will reduce the efficiency of
the engine’s Aftertreatment System and may
permanently damage the system.

CAUTION

Owners of 2010 and later model year on-
highway diesel engine must refuel only with
ULSD fuel.

NOTE

Burning Low Sulfur Diesel fuel (instead of

ULSD fuel) in 2010 and later model year

diesel engines is illegal and punishable with

civil penalties.

NOTE

Engine and vehicle manufacturers expect
ULSD fuel to be fully compatible with the
existing fleet, including 2006 and earlier model
year vehicles. In some instances, the
introduction of ULSD fuel to older vehicles
may affect fuel system components or loosen
deposits in fuel tanks. As part of a good
maintenance program, owners and operators
of existing cars, trucks and buses are
encouraged to monitor their diesel-powered
vehicles closely for potential fuel system leaks
or premature fuel filter plugging during the
change-over to ULSD fuel.

NOTE

Like Low Sulfur Diesel fuel, ULSD fuel
requires good lubricity and corrosion inhibitors
to prevent unacceptable engine wear. As
necessary, additives to increase lubricity and
to inhibit corrosion will be added to ULSD fuel

prior

to its retail sale.

4.2 BLENDING

Only ultra low sulfur kerosene – No.1 diesel with
no more than 15ppm sulfur may be blended with
ULSD fuel to improve cold weather
performance. With so many kerosene
formulations on the market, care must be taken
to select kerosene with a maximum of 15ppm
sulfur.

Blend rates remain the same as with Low Sulfur
Diesel fuel.

4.3 BIODIESEL FUELS

ULSD-B5 biodiesel may be used. B5 tells you
the percentage of biodiesel mixed in with ULSD.
B5 is 5% biodiesel and 95% ULSD.

Fuel used must meet engine manufacturer’s
specification for biodiesel fuel. Refer to Volvo
engine specifications.
Biodiesel fuels are alkyl esters of long chain fatty
acids derived from renewable resources. Volvo
highly recommends biodiesel fuels made from
soybean or rapeseed oil through the proper
transesterification reaction process. Other
feedstock source of biodiesel fuels such as
animal fat and used cooking oils are not
recommended by Volvo. Failures attributed to
the use of biodiesel fuel will not be covered by
Volvo or Prevost product warranty. Also, any
engine performance problem related to the use
of biodiesel fuel would not be recognized nor
considered as Volvo or Prevost’s responsibility.

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 (1) one intake
duct located just above engine R.H. side door. 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).

5.1 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.

PREVOST X3-45 2016, Maintenance Manual

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