ENGINE FUEL SYSTEM
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1881-01
6) Draining the Water From Fuel Filter
Place the water container under the fuel
filter. 1.
Turn the drain plug (2) to "A" direction to
drain the water. 2.
Wait until a certain amount of fuel gets
out from the port, then turn the drain plug
to "B" direction to tighten it. 3.
Be careful not to be injured by
surrounding equipment during the
working procedures. -
Press the priming pump until it becomes
rigid. 4.
Start the engine and check the conditions. 5.
If the priming pump is not properly
operated, air may get into the fuel line. It
may cause starting problem or fuel
system problem. Make sure to perform
the job in step 4. -
ENGINE FUEL SYSTEM
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1881-01
4. COMPONENTS OF LOW PRESSURE TRANSFER LINE
Low pressure stage is to supply sufficient fuel to high pressure section and components are as
below.
Fuel tank (including strainer)
Hand priming pump
Fuel filter
Transfer pump
Other low pressure fuel hoses -
-
-
-
-
1) Fuel Tank
Fuel tank is made of anti-corrosion material
and its allowable pressure is 2 times o
f
operating pressure (more than min. 0.3 bar).
It has protective cap and safety valve to
prevent excessive pressure building. Also, to
supply fuel smoothly, it has structure to
prevent fuel from leaking in shocks, slopes
and corners and.
If fuel runs out during driving or air gets into
fuel line after fuel filter replacement, it may
cause poor engine starting or damage to
each component. Therefore, the hand
priming pump is installed to bleed air from
transfer line.
When the vehicle is under the conditions as
below, press the priming pump until it
becomes rigid before starting the engine.
2) Priming Pump
After run out of fuel
After draining the water from fuel separator
After replacing the fuel filter -
-
-
Press the priming pump until it becomes
rigid before starting the engine.
