Linhai HY740STL 2018, Service Manual

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CHAPTER 2 MAINTENANCE
M750L SERVICE MANUA 18.0
CHAPTER 2 MAINTENANCE PAGE. 2- 10
Disconnect negative cable at battery.
Disconnect fuel module wire coupler.
Drain the fuel in fuel tank thru fuel filler with
help of hand pump (siphon). Collect the
fuel in approved container for contamination
and safety.
Disconnect the fuel hoses from fuel module
by using standard tools
Remove the fuel tank from vehicle.
Place the fuel tank with bottom up condition.
Care to be taken not to cause any
scratches/ damages on fuel tank.
Open the fuel module mounting bolts.
Take out fuel module assembly from fuel
tank with care
Care to be taken not to damage the strainer
while removing fuel module from tank.
Fuel Module Installation:
Replace the fuel module gasket in fuel
module assembly with a new one. Old/ used
gaskets can cause leakages.
Fold strainer towards fuel pump and insert
fuel module in tank opening with care. Care
should be taken not to cause any damages on
strainer.
Fuel Module Orientation: Fuel module bolts not
symmetrical and can be mounted
only in the intended direction. Regulator side
should be facing the Fuel Tank rear
side.
Make sure that the fuel tank surface at module
mounting area is clean and free of
surface defects.
Place the bolts on module cover and tighten
the bolts gradually in star pattern
sequence to apply equal compression on
gasket. It is shown as below.
Bolt Tightening Torque: 4.4 Nm.
Fuel module is installed with special bolts (step
bolts). Use designated bolts only.
Follow the tightening torque and tightening
sequence instruction. Over torque and
miss-sequence can cause unequal
compression of gasket and leakage.
Install the fuel tank to vehicle.
Connect for fuel hoses with suitable hose
clamps.
Connect fuel module coupler
Follow “Fuel Leakage Check Procedure’ to
check any leakage before the engine is
started.
Fuel Pressure Relief Procedure:
Caution: This work must not be done when
engine is hot. If done so, it may cause
adverse effect to catalyst (if equipped)
After making sure that engine is cold, relieve
fuel pressure as follows.
Place vehicle gear in ‘Neutral’.
Disconnect fuel module electrical coupler
from vehicle harness.
Start engine and run till it stops due to lack
of fuel. Repeat ignition key ON and OFF
for 2 ~ 3 times of about 3 seconds each time to
relieve fuel pressure in lines. Fuel
Connections are now safe for servicing.
Upon the completion of servicing, Connect
Fuel Module Connector to Vehicle Harness
2.3 TOE ALIGNMENT