138
Plastic (multilayer) fuel tank
1 (Fig. 9.8).Fuel tank main-
tenance includes submersible module flushing (clogging of the
submersible module filter), flushing of the tank (presence of dirt
and mechanical admixtures in the fuel tank).
Check from time to time the reliability of the tanks fastening
and, if necessary, tighten the fastening bolts.
Fuel tanks must be dismantled from the vehicle in order to
flush them.
Prior to dismantling the tanks from the motor vehicle, do the
following:
– disconnect accumulation battery;
– loosen bolts of the fuel tank bands and lower the tank;
– disconnect the cable from the electric fuel pump (submersible
module) and isolate it;
– disconnect the polyamide pipes of the high pressure tube;
– loosen filling pipe collar and take off the filling pipe from
the fuel tank neck, disconnect the steam-sleeve from the fuel tank
branch pipe or unscrew the filling pipe bolts in the flap frame.
Then unscrew coupling band pins, turn collars down so as not
to impede tank lowering and remove tank.
Install tank in reverse order.
Submersible module
5 (Fig. 9.8) includes electric fuel pump,
gauze filter, intake camera with jet pump, fuel supply union to the
preheater, the pressure controller and the fuel tank level gage.
At mounting of the tank, check and clean fuel pump pins and
connections to the onboard power supply.
Pay special attention to the reliability of the ground connection.
Try to avoid fully running out of fuel, as it can affect the assemblies.
When overcoming the steep inclines, there must be at least
20 liters of fuel in the right-side tank.
Clogging of the strainer fuel module, final fuel filter, presence of
dirt and mechanical admixtures in the fuel tank manifest first of all in
deterioration of the pumping of the fuel from the left-side tank into the
right-side one, unstable engine operation at high loads and degradation
of the motor vehicle performance. If such signs arise, seek help from
a service station in order to prevent the fuel priming pump failure.
Summary of Contents for CARGO
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