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3.5.3 Fuel suction from the fuel tank of the vehicle.
Fuel is taken from the fuel line of a vehicle using a T-piece (see Fig.21). This method
can only be used if there is no pressure in the fuel line. If the vehicle is equipped with a
low-pressure fuel pump in the fuel tank, then those fuel lines cannot be used, fuel suction
hose must be installed instead. Keep in mind the installation position of the T-piece.
3.5.4 Installation of the fuel pump and the fuel supply line.
The fuel pump is connected to the heater through its own harness and supplies fuel
depending on the required heat capacity to the combustion chamber of the heater. The
fuel pump is operated by electrical impulses sent by the control unit. When operating, the
fuel pump makes a characteristic, metallic clicking noise.
It is recommended to install the fuel pump
close to the fuel tank (the distance should not
exceed 1 meter (see Fig.18 and Fig.21)) and below
the low level of fuel in the fuel tank, but not lower
than 70cm of the minimal fuel level (see Fig.23,
point a)). But the distance between the fuel pump
and the heater cannot be greater than 1,5 meters
(see Fig.23, point b)). The fuel pump should be
positioned with a slight angle pointing upwards
(see Fig.22).
Fig. 22 – Installation angle of TH-9; TH-10; TH-11
fuel pump.
