Great Wall GW491QE, Руководство по обслуживанию

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EF.1-29
United฀Electronic฀engine฀management฀system-Analysis฀of฀function฀/principal฀/
failure฀for฀system฀parts฀&components
(f)Technical฀&characteristic฀parameter
฀฀฀฀Limit฀data
V alue
M easurement
M in. T ypical M ax .
U nit
U nder a normal operation
A ccumulator v oltage
W ith li mi ted f unction
L i mit value & ti me to
W ithstandthe
over-v oltage of
accumulator
R etain partial functions,
and
able to perform
failure diagnosis.
W ork ing temperature
S torage temperature
18.฀Fuel฀distributing฀pipe฀assembly
(a)Principal The฀fuel฀distributing฀pipe฀assembly฀is฀composed฀of฀fuel
distributing฀pipe K V S ,฀oil฀injector฀ E V ,฀and฀fuel฀pressure฀adjustor
D R ,฀and฀may฀be฀used฀to฀store฀and฀distribute฀the฀fuel.
(b)Installation฀position:฀on฀the฀inlet฀manifold.
(c)Precautions฀to฀installation:
-฀฀The฀place฀where฀the฀fuel฀inlet฀pipe฀is฀connected฀with฀rubber฀hose฀shall฀be
clamped฀tightly฀using฀clips,฀whose฀model฀needs฀to฀match฀with฀the฀rubber
hose฀to฀assure฀the฀tightness฀of฀connection฀between฀fuel฀inlet฀pipe฀and
rubber฀hose;
-฀฀Regarding฀the฀system฀pressure,฀refer฀to฀the฀characteristic฀parameter฀for฀pressure฀adjustment฀valve;฀Regarding฀the฀requirement฀for
fuel,฀refer฀to฀the฀characteristic฀parameter฀for฀฀injector;฀Regarding฀the฀sealability,฀it’s฀required฀to฀have฀no฀fuel฀leakage฀under฀working
pressure.
฀-฀฀The฀inner฀diameter฀of฀fuel฀rubber฀hose฀shall฀be฀( 7.9 0.3)mm2.
European
Measurement Value
Min. Typical Max.
Unit
Working temperature when fuel
Distributing pipe is correctly connected with the O ring.
-40 +120 ℃
15-minute Max. working temperature when being soaked
+130 ℃
Peak value of Max. allowable vibration acceleration
300
m/s
2
- It shall be free from any crack, damaged trace, groove, burr, or rust on the wall
of fuel inlet pipe;
- Prior to the installation of fuel distributing pipe assembly, clean lubricating oil
shall be applied to lubricate the lower O-ring of oil injector;
(d)Inspection on the sealing performance:
The sealability of fuel distributing pipe may be tested using pressure drop method
: perform a test on the O-ring inside injector on the fuel distributing pipe; and the
tested limit value of leakage shall be≤1.5cm3/min when at a pressure of 4.5bar.
(e) Technical &characteristic parameter
：
Limit data
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