MAINTENANCE OF THE HEMTT - OD1662 - LESSON 1/TASK 1
driving a turbine wheel.
A compressor wheel on the opposite end of
the turbine wheel shaft rotates and draws in fresh air through the air
cleaner, compresses the air, and delivers it to the engine blower.
Air from the engine blower flows through the aftercooler, which cools
the air before it is delivered to the engine cylinders.
FIGURE 17.
AIR INTAKE SYSTEM.
(b) Fuel System (figure 18 on the following page). Fuel drawn from
the fuel tank (1) passes through the supply line (2) to a fuel-water
separator (3), fuel pump (4) and secondary filter (5) to the engine
fuel injectors (6).
Surplus fuel from the injectors is returned to
the fuel tank through the return line (7).
The fuel-water separator
removes water and large solid particles from the fuel.
The finer
particles are removed by the secondary filter before they can enter
the fuel injectors.
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