(Sheet 1 of 2)
FUEL SYSTEM DESCRIPTION
PRIMING PUMP. Used to prime fuel system on initial startup
The direct injection fuel system consists of:
or after changing fuel filters. The priming pump also removes air
from the fuel system.
SECONDARY FUEL FILTER. A final filter before fuel enters
Primary fuel filter
INJECTION PUMP. Provides the injection nozzles with a
metered, high pressure charge of fuel at a precise time.
INJECTION NOZZLES. Spray the metered amount of fuel from
Secondary fuel filter
the injection pump into the cylinder for combustion.
GOVERNOR. Controls the amount of fuel needed to keep the
desired engine speed. The governor is controlled by the accelera-
FUEL LINES. Carry fuel from the tank to various components
of the fuel system and provide return routes for unused fuel.
STARTING AID. Delivers
a measured amount of ether
Ether starting aid
turbocharger inlet for ease
in cold weather starting. The
stored under pressure in a
cylinder and the amount to be
into the inlet is controlled
by an electrically activated
FUEL TANK. Located next to the cab on the left side of the
vehicle. The capacity of the tank is 165 gal. (625 liters). The tank
has a drain valve and drain plug at the bottom and a filler screen
and cap at the top.
PRIMARY FUEL FILTER. Filters all fuel coming from the fuel
tank before the fuel enters the transfer pump.
TRANSFER PUMP. Sends the fuel to the priming pump,
secondary filter and the injection pump.
Go on to Sheet 2