Fuel System; Fuel Valves; Fuel Filters - PREVOST H3-41 Maintenance Manual

2. FUEL SYSTEM

NOTE
For additional information concerning Volvo
D13 engine components or engine-related
components, consult Volvo Trucks Canada or
Volvo Trucks North America Web Site under:
Parts & Service. On Volvo web site, you will
find detailed service procedures for parts
replacement, repair and maintenance.
FIGURE 1: FUEL SYSTEM SCHEMATIC (VOLVO D13
ENGINE)
1 Non-pumping injector
2 Pumping injector
3 Fuel pressure relief valve
4 Common rail
5 Rail pressure sensor
6 Fuel channel (gallery)
7 Restrictor
8 Overpressure relief valve
9 Fuel pump
10 Fuel tank
12 Check valve
13 Bowl (fuel/water separator)
14 Primary Filter
15 Filter
16 Fuel filter housing
17 Fuel pressure sensor (low pressure
system)
18 Aftertreatment
module
19 Hand pump (fuel primer pump)

2.1 FUEL VALVES

The manual shut-off valve is located on the inlet
side of the primary fuel filter or on the inlet side
of Davco Fuel Pro 382 fuel filter.
FIGURE 2: MANUAL SHUT-OFF VALVE LOCATION WITH
DAVCO FUEL PRO 382
FIGURE 3: FUEL LINE COMPRESSION FITTING
CAUTION
ALWAYS replace the fuel line compression
sealing washers when troubleshooting for fuel
aeration or performing any service procedure
that requires the removal of engine fuel lines.

2.2 FUEL FILTERS

A primary fuel filter is installed on the engine.
This filter consists of a filter cartridge, a water
separation bowl with a drain valve. It is used to
prevent water from entering the fuel system.
PA1621 Maintenance Manual All Series | Revised May 2018
SECTION 03 : FUEL SYSTEM
hydrocarbon injector
5