Zontes ZT310T-M, Руководство по обслуживанию

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2. Disassemble the fuel pump
Turn the fuel tank assembly over and place the fuel
pump facing upwards firmly. The small wooden stool
can be turned over to ground the surface of the stool
and put the fuel tank assembly on.
Loosen 5 bolts
⑴
diagonally with a 10# sleeve, grasp
the high-pressure oil pipe bracket
⑵
, and remove the
bolt
⑴
completely.
When re-assembling, you need to pre-tighten the
corners and then tighten the 5 bolts. Otherwise, the
uneven compression of the sealing rubber ring of the
fuel pump will easily cause leakage and cause safety
hazards.
Caution:
●Early production vehicles do not contain brackets
⑵
,
you can purchase and install them by yourself.
●The length of the bolt without bracket (1) is M6×16,
and the length with bracket is M6×20.
●The fuel pump is a precision component that needs to
be assembled in a dust-free workshop and requires
rigorous testing, so it is forbidden to disassemble it by
yourself. Therefore, the decomposition process of the
fuel pump is not explained here.
3.
Remove the oil level sensor
Place the removed fuel tank assembly. It is
recommended to protect the fuel pump at the bottom of
the fuel tank.
Use a 10# sleeve to remove the 4 bolts
⑴
, and pull
the sensor
⑵
out. Be careful not to pull it forcibly to
avoid the deformation of the float connecting rod, which
will cause the deviation of the oil volume display to
increase.
When reassembling, you need to pre-tighten the
corners and then tighten the 4 bolts. Otherwise, the
uneven compression of the sealing rubber ring of the oil
level sensor may cause leakage and cause safety
hazards.
4. Remove the external parts of the fuel tank
assembly.
a.Take off the 4 segments directly
⑴
.
b.Press down the fuel tank cap
⑵
and then rotate it
counterclockwise to remove it.
c. The battery rubber pad (3) is pasted on the shell of
the fuel tank, which is difficult to remove. If you need to
remove it, you can use a heat gun to heat it and tear it
off, or use a cleaning agent that removes the adhesive
to remove it.
Examination
1. Fuel pressure test
Refer to the fuel pump section in the "Maintenance" chapter for the test method.
2. Fuel pump inspection
Unlock the vehicle, turn the engine stop switch to "", you should be able to hear the sound of the fuel pump running.
If you don't hear the fuel pump running sound, turn off the engine and turn off the power first.
Refer to the steps in the "Maintenance" chapter to replace the high-pressure oil pipe first to remove the surrounding
bottom plate. Refer to the previous fuel tank removal steps to unplug the fuel pump.