Fuel Pump (Wg1605-G-E3, Wg1605-Gl-E3) - Kubota WG1605-G-E3 Workshop Manual

WG1605-G-E3,WG1605-L-E3,WG1605-GL-E3, WSM

[4] FUEL PUMP (WG1605-G-E3, WG1605-GL-E3)

The gasoline system will utilize an external electric
gasoline fuel pump. The pump will be mounted in the
chassis of the vehicle, or equipment near the fuel tank.
Gasoline rated fuel hose and securing devices supplied
by the OEM, will be used to transfer the pumped fuel to
the Gasoline Fuel Pressure Manifold assembly. The
OEM may have installed a fuel filtration device ahead of
the electric pump, which may be located in the tank or an
external filter. Most industrial equipment will be exposed
to dusty and dirty environments, therefore use caution
when opening the gasoline tank, to prevent dirt and
debris from falling in the tank. For filter maintenance,
refer to "3. MAINTENANCE CHECK LIST".
The electric gasoline fuel pump, utilized on USA
emission certified engines are a critical part of the
certified emissions system, and do not require any
periodic adjustment.
The pump will be mounted in the chassis of the
vehicle, or equipment near the fuel tank. Gasoline rated
fuel hose and securing devices supplied by the OEM, will
be used to transfer the pumped fuel to the Gasoline Fuel
Pressure Manifold.
A: From Fuel Tank
Fuel Pressure Manifold (FPM)
(WG1605-G-E3, WG1605-GL-E3)
The gasoline fuel system, utilizes a Fuel Pressure
Manifold assembly, to control the delivery pressure to
the delivery pipe. The manifold is mounted to the
chassis, between the electric fuel pump and the delivery
pipe. The manifold is equipped with a sensor, which
provides the ECU with the gasoline fuel temperature,
and pressure being regulated to the delivery pipe. The
ECU uses the fuel temperature and pressure, to
calculate the precise amount of gasoline, to be injected
to the engine during operation. The manifold is designed
into the system, to control pressure, as well as the
amount of gasoline, to be returned to the fuel tank. In
normal gasoline delivery systems, the electric fuel pump,
delivers a constant pressure to the delivery pipe, and
allows a significant amount of fuel to be recycled to the
tank, thus causing the gas to heat and vaporize, and
requiring the use of a vapor recovery system to control
the excess vapor. The system manages the fuel
pressure at the manifold and minimizes the amount of
returned fuel, thus reducing the vapor fuel in the tank.
1-M14
ENGINE
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9Y1210661ENM0018US0
KiSC issued 01, 2012 A