burning procedure.
I
R series diesel engine
adoptsJ
series and S·series injec-
tort
all
these
two
models
are
spring
low
installed
and
low
inertia types injector. The needle valve mate
of
the
injec-
tor
is a
10nQ;.
and holey style t in general t
RIOO
adopts neele
valve mate
wity
4 -
-ro.
27mm spray holes RI05 adopts
needle valve
mate
with
4 -
-ro.
30mm
spray holes. The
fuel should
be
atomized evenly
after
being sprayed, and
the
fuel stopping should be functioned
at
once,
no fuel
late drops
of
leakage.
When
the
fuel atomized
not
well,
the
injector should be
tested
and adjusted on
the
injector
test
bench.
the
injector opening pressure-is 20( + 1. 00)
Mpa
,
if
the
pressure is
not
suitable,
the
thickness
of
the
injector pressure Adjusted gasket should be adjused,
if
the gasket is
added
more
o.
Imm,
the
injecting pressure
will
be improved about 1
Mpa.
The needle valve mate is matched
mate
t never
ex-
changed
when
dismantled. The J series needle valve
mate
can't
be exchanged
with
the
S series needle valve
mate,
but
their
assemblies can be exchanged.
When
the
injector is installed on
the
cylinder head,there
is a copper
washer
on
the
front,
this can assure
the
tightness.
9. Lubricating System
Fig. 9 Injector assembly
1.
Fuel
return adaptor screw 2.
Injector block 3. Pressure adjus-
ting
gasket 4. Injector spring S.
support lever 6. Body subassem-
bly 7. Injector tigh1ening
nut
8.
Injector mate
9. Injector seal
gas-
ket
The engine is lubricated
by
pressure oil combined
with
splash oil.,
the
layout
of
lubri-
cating
system
is
shown
in fig. 6
The oil is sucked into
the
oil
pump
through
the
strainer and
the
enters
into
the
main
oil passage
after
being cooled and filtered. The oil in
the
main oil passage
of
the
cyl-
inder block is ·delivered
to
the
main bearings, connecting rod bearings,
camshaft
bushingst high pressure
pump,
air
compressor,
vacuum pump.
The
J oil passing
through
the
camshaft bushings,high pressure
pump,
air compressor,vacuum
pump.
The oil passing
~hrough
the
camshaft bushing
flows
through
the
oil
passa~e
in cylin-
der block and cylinder bead
to
lubricated the valve mechanism. Piston
,piston
pin,
cyl·
inder liner are all· splash lubricated
by
the·oil· spilled
from
the
bearings.
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