PREVOST X3-45 COMMUTER User Manual

SECTION 03 : FUEL SYSTEM
DOB 1300-1556 | X3-45 Commuter PA-1648 Maintenance Manual First release Oct 2020
7
completed, open the shut-off valve and keep on
pumping fuel about ten seconds to fill the fuel
line located between the Fuel Pro unit and the
fuel tank.
2.2.2 Filter replacement
1. Stop engine;
2. Place a suitable container under the fuel
processor;
3. Close the shut-off valve on the “fuel in” side
of the fuel filter;
4. Open the drain valve at the base of the Fuel
Pro body and drain the fuel until it is below
the collar level;
5. Untighten the collar, remove clear cover, filter
spring, filter element and cover seal;
6. Dispose of used filter element, cover seal and
vent cap seal;
7. Using a clean shop rag, clean the cover, the
collar and threads on the Fuel Pro body.
8. Ensure the filter grommet is included in the
base of the new filter element and then install
the element onto the center stud;
9. Ensure the filter spring is installed at the top
of the clear cover. If missing, the spring must
be replaced to insure proper filter operation.
10. After ensuring the seal is properly positioned
at the base of the clear cover, install it with
the collar onto the fuel processor. Apply
downward pressure to the top of the clear
cover and then tighten the collar by hand until
secured;
11. Fill the clear cover with clean diesel fuel until
it reaches the top of the filter through spin off
vent cap located on top of clear cover.
12. Install vent cap seal and then reinstall the cap
and tighten by hand until it clicks;
13. Open the shut-off valve;
14. Start engine, raise rpm for 2-3 minutes, hand
tighten collar again.
15. After the air is purged and with the engine still
running, slowly loosen the vent cap on the
filter cover. The fuel level in the cover will
start falling. When the fuel level falls to about
one inch above the top of the collar, tighten
the vent cap quickly by hand.
16. Shut down the engine and hand-tighten the
collar again.
NOTE
Diesel fuel is an environmentally hazardous
product. Dispose
according to applicable
environmental regulations.
FIGURE 7: DAVCO FUEL PRO 382 03076

PREVOST X3-45 COMMUTER Specifications

General

Engine	Volvo D13
Transmission	Allison B500
Fuel Type	Diesel
Length	45 ft (13.7 m)
Width	102 in (2.6 m)
Horsepower	500 hp
GVWR	54, 000 lbs
Height	141 in