Cleanliness Of Fuel System Components - Perkins 1204F-E44TA Systems Operation Testing And Adjusting

UENR4490-01
The alternator converts the mechanical energy and
the magnetic field into alternating current and
voltage. This conversion is done by rotating a direct
current electromagnetic field on the inside of a three-
phase stator. The electromagnetic field is generated
by electrical current flowing through a rotor. The
stator generates alternating current and voltage.
The alternating current is changed to direct current
by a three-phase, full-wave rectifier. Direct current
flows to the output terminal of the alternator. The
direct current is used for the charging process.
A regulator is installed on the rear end of the
alternator. Two brushes conduct current through two
slip rings. The current then flows to the rotor field. A
capacitor protects the rectifier from high voltages.
The alternator is connected to the battery for
charging and machine load requirements. A warning
lamp can be connected via the ignition switch. This
wiring is optional.
Cleanliness of Fuel System
Components
Cleanliness of the Engine
It is important to maintain extreme cleanliness when
working on the fuel system, since even tiny particles
can cause engine or fuel system problems.
The entire engine should be washed with a high-
pressure water system. Washing the engine will
remove dirt and loose debris before a repair on the
fuel system is started. Ensure that no high-pressure
water is directed at the seals for the injectors or any
electrical connector.
Environment
When possible, the service area should be positively
pressurized. Ensure that the components are not
exposed to contamination from airborne dirt and
debris. When a component is removed from the
system, the exposed fuel connections must be closed
off immediately with suitable sealing plugs. The
sealing plugs should only be removed when the
component is reconnected. The sealing plugs must
not be reused. Dispose of the sealing plugs
immediately after use. Contact your nearest Perkins
distributor in order to obtain the correct sealing plugs.
This document has been printed from SPI2. NOT FOR RESALE
i05452449
NOTICE
New Components
High-pressure lines are not reusable. New high-
pressure lines are manufactured for installation in
one position only. When a high-pressure line is
replaced, do not bend or distort the new line. Internal
damage to the pipe may cause metallic particles to
be introduced to the fuel.
All new fuel filters, high-pressure lines, tube
assemblies, and components are supplied with
sealing plugs. These sealing plugs should only be
removed in order to install the new part. If the new
component is not supplied with sealing plugs then the
component should not be used.
The technician must wear suitable rubber gloves.
The rubber gloves should be disposed of immediately
after completion of the repair in order to prevent
contamination of the system.
Refueling
In order to refuel the diesel fuel tank, the refueling
pump and the fuel tank cap assembly must be clean
and free from dirt and debris. Refueling should take
place only when the ambient conditions are free from
dust, wind, and rain.
Only use fuel that is free from contamination. Ultra
Low Sulfur Diesel (ULSD) must be used. The content
of sulfur in Ultra Low Sulfur Diesel (ULSD) fuel must
be below 15 PPM 0.0015%.
Biodiesel may be used. The neat biodiesel must
conform to the latest "EN14214 or ASTM D6751" (in
the USA). The biodiesel can only be blended in
mixture of up to 20% by volume in acceptable mineral
diesel fuel meeting latest edition of "EN590 or ASTM
D975 S15" designation.
In United States, Biodiesel blends of B6 to B20 must
meet the requirements listed in the latest edition of
"ASTM D7467" (B6 to B20) and must be of an API
gravity of 30-45.
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Engine Operation