HAIMA 7 - Check Valve Inspection; Inspection of Fuel Line Pressure

Fuel System
F-5
7. Apply pressure to +2.0kpa (15mmHg, 0.5inHg),
inspect whether there is airflow from port B.
l If there is no airflow, replace fuel pump.
(Refer to Fuel Pump Removal /Installation.)
l If there is airflow, connect SST to port B
and turn the fuel tank upside down.
8. Apply pressure to +15kpa and inspect the
airflow from port D.
l If the airflow ≥ 30ml/min, replace fuel pump.
(Refer to Fuel Pump Removal /Installation.)
Check Valve Inspection
1. Remove fuel-filler tube. (Refer to Fuel Tank
Removal /Installation)
2. Make sure that the protruding on the check
valve is aligned with notch on fuel-filler tube.
l If not, remove the check valve and then
reinstall with protruding aligned with the
notch.
3. Make sure that the check valve is closed when
picked up.
l If not, replace the check valve. (Refer to Fuel
Tank Removal /Installation)
4. Make sure that the check valve open under its
own weight.
l If not, replace the check valve. (Refer to Fuel
Tank Removal /Installation)
Inspection of Fuel Line Pressure
Warning
l Fuel spill and leakage are dangerous for it
can be easily ignited resulting in personal
injury or property damages. Furthermore, it
can also irritate skin and eyes.
Caution
l If fuel pipe and quick release connectors are
not cleaned before removal and installation,
they will be damaged during removal or
installation. Therefore, clean them before
removal or installation and make sure no
foreign objects access the fuel pipe and the
connectors.
Attention:
l Perform the following test only when
necessary.
1. Complete “Preparation for Maintenance”.
(Refer to Preparation for Maintenance)
2. Disconnect negative battery cable.
Caution
l To avoid damage to quick release connector
or fuel leakage, perform the following
procedure according to the “Fuel Tank
Removal Instruction”. (Refer to Fuel Tank
Removal/Installation, Fuel Tank Removal
Instruction.)
3. Remove the fuel feeding hose from the
injection rail.
4. Connect the SST quick release connector with
the feeding port of fuel injection rails and fit
fuel feeding hose into SST port.
5. Connect negative battery cable.
Caution
l Connecting to wrong pole may cause
malfunction. Carefully connect to the
specified pole.
Port A
Port E
Port D
Port B
Port G
Protruding part
Handle
Fuel feeding
hose
To port of fuel
injection rail