CF MOTO CF1000ATR 2018, Руководство по обслуживанию, Страница: 282 / 365

5.9 Electrical System
05-207
5.9.4.8 Fuel Pump
This fuel pump assembly includes fuel
pump, plastic support, preliminary filter,
fine filter and pressure regulator. It supplies
fuel for engine under a certain pressure
and flow.
Pin function:
1. Ground
2. To fuel pump relay output
Parameters:
Pressure regulator opening pressure:
0.33MPa±0.02MPa
Flow speed: more than 35L/h
●This fuel pump is located in fuel tank.
●Don't operate the fuel pump in dry
condition in order to prevent damage.
●Always handle the fuel pump gently.
Never drop the fuel pump, especially on a
hard surface.
●Battery supplies power for fuel pump
assembly via fuel pump relay, which
connects the fuel pump circuit only with the
engine started.
Fuel pressure test:
●Connect the fuel pressure gauge with fuel
outlet and tighten the joint with a clamp to
prevent fuel leaks.
●Route according to the right circuit.
●Turn both ignition switch engine stop
switch on.
●At this moment, fuel pump will operate
for 5 seconds. After the fuel pump stops
running, fuel pressure should be in
specification. Otherwise, replace it.
●After the engine stops running,0.25MPa
fuel pressure should be kept for more than
5 minutes. Otherwise, replace the fuel
pump.
Fuel pump
0520701
Pressure relief in fuel system:
In an EFI model, the pressure in fuel
system is very high, so all the line is
high pressure resistant. Even though the
engine is not started, the pressure in fuel
system remains high. Therefore, it's not
recommended to remove fuel lines before
pressure relief.
Follow the procedure below to perform
pressure relief:
Remove fuel pump relay. Start the
engine and allow it to idle until the
engine stops automatically.