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Isuzu N-Series. Manual - part 1233
Air inlet and air exhaust
systems
Inlet system includes air inlet pipe
assembly尧 air filter 尧branch pipe of
air inlet. Air exhaust system includes
exhaust pipe尧 muffler and exhaust
tailpipe etc.
Using and maintenance
1. Service life of engine has the clos鄄
est relationship with the working
condition of air filter. It is forbidden to
use the engine without air filter or
with air filter that cannot work. Taking
the air inlet port of air filter as the ini鄄
tial air inlet port is also forbidden.
2. Check the inlet manifold and ex鄄
haust manifold for every 1000km run鄄
ning.
荫
Check nuts for looseness, when
tightening the nut on the inlet and
exhaust manifold, the torsion force
should be equable, or else the air
leakage can occur.
荫
Check the inlet and exhaust mani鄄
fold for crack and hole, check the
gasket for damage and erosion, if
finding those phenomena, replace it
with a new one.
Air filter
The function of air filter is to filtrate
out the dust and the sand in the air
entering into the engine.
Air filter is cyclone dust gathering air
cleaner with paper filter element. Af鄄
ter external air entering into the air fil鄄
ter through the air entering into the
air filter through the air inlet pipe,
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The signboard of engine
OWNER爷S MANUAL for
HFC1061,HFC1063,HFC1083
series trucks
Note院The details of the engine
structure尧 assembling尧 adjust鄄
ment尧 using and maintenance can
be consulted in the operating
specification of relevant engines.
Note: there is a signboard of en鄄
gine on the top or on the side of
the cylinder. Marked with model of
engine, serial number when leav鄄
ing the factory, date when leaving
the factory, demarcated rotational
speed etc. please find the exact
position so as to use and repair our
product.
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larger dust particle can be separated
from the air by the function of cy鄄
clone vane, then can be thrown into
the dust gathering plate, the sepa鄄
rated air keep on moving and enter
into the cylinder by the filtering func鄄
tion of the paper element.
For every 1000km running , check
and maintain the air filter. When run鄄
ning in the condition of excessive
dust, the running mileage interval for
inspection and maintenance should
be shortened suitably.
Cleaning of the air cleaner:
1. Remove the dish shaped nut from
the covering lid. Get the filter element
after opening the covering lid.
2. Clean the covering lid and inside
of the outer covering with clean and
dry cloth. When cleaning , do not let
the water enter into the filter element.
3. Clean the dust unloading valve to
make sure it isn't worn and can
work.
4. Check whether the rubber tube
connected to brake is tight or not
and close it tightly .
5. Clean the filter element of the filter.
Use compressed air gun to remove
the dry dirt or dust (air pressure
should be less than 690kpa), remem鄄
ber to blow from inner side to outer
side of the filter element to clear
away the dirt or dust . Patting or
knocking are forbidden.
Cooling system
Brief description of the structure
Cooling system adopts closed wa鄄
ter-cooling pressure cycle type. It is
composed of radiator尧cooling fluid尧
thermostat尧fan gear尧connection hose
etc.
Maintenance of cooling system
1. It' s recommended to use long -
term effective antifreeze preservative
liquid of glycol base as cooling fluid.
In the north, it can avoid damage to
the engine due to solidification of
cooling fluid in winter; in the south, it
can increase the boiling point of
cooling fluid in summer to avoid
damage to engine due to air resis鄄
tance in high temperature.
2. Every time before driving, check