Fuel Pump Removal And Install Tion; Davco Fuel Pro 382 - PREVOST H3-41 Maintenance Manual

2.4 FUEL PUMP
INSTALLATION
The pump is located underneath the air
compressor and is accessible through the engine
compartment R.H. access door.
To remove the pump, proceed as follows:

Clean around the fuel pump and fuel lines.
Position a container to catch any fuel that
might drain from the pump or lines.

Remove the fuel pump.
NOTE
Only unfasten the bolts marked with arrows.
FIGURE 7: FUEL PUMP REMOVAL
CAUTION
Ensure to clean around the head of the bolts.
Debris will prevent the tool from fitting properly
and cause damage to the fasteners..

Check that the adapter and fuel pump drive
axle are not damaged.

Install the fuel pump. Torque-tighten bolts to
specification.
REMOVAL AND
PA1615 Maintenance Manual All Series
SECTION 03 : FUEL SYSTEM
FIGURE 8: FUEL PUMP DRIVE AXLE
NOTE
Use a new sealing ring. Check that the fuel
pump drive axle sits correctly in the power
steering pump.

Using the hand primer on the fuel filter
housing, prime the fuel system.

Start the engine and let run for 5 minutes.
Make sure that there are no leaks.
3. DAVCO FUEL PRO 382
The optional Fuel Pro 382 diesel fuel filter
system consists of a permanently mounted fuel
processor, a replaceable filter element, a filter
element cover and collar and a fluid filter base
assembly. This system is installed between the
fuel tank and the fuel pump. The filter serves as
a water separator as well as a fuel filter (Figure
9).
The filter fibers used in the Davco Fuel Pro 382
element may cause the fuel level to read
artificially high when the filter is first installed.
Over the first few days, the filter fibers eventually
become fully saturated and the fuel level will
drop to normal levels. Do not be concerned
about an abnormally high fuel level when a new
Davco element is installed.
Fuel level rises as dirt collects on the filter from
the bottom up. Restriction remains consistently
low because fuel always flows through clean,
new media.
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Section 03 revised September 2016
9