22
Notice院
The details of the engine structure尧 assembling尧 adjustment尧 using and maintenance can be consulted in the oper鄄
ating specification of relevant engines.
The position of the engine card
Cause院The card of engine is on the top cylinder head or on the side of engine .It writes the model number of engine ,
sequence number ,declared power ,declared speed and the factory date .Pay attention to find it in order to using it
clearly and convenience.(as picture)
HFC1048
series trucks
23
(玉). Inlet air尧 exhaust sys鄄
tems
1. Brief description of the struc鄄
ture
Inlet system includes air inlet pipe
assembly尧 air filter assembly尧 intake
manifold. Exhaust system includes
exhaust pipe尧 muffler and exhaust
tailpipe
Use and maintance院
1) The service life of the engine has
great relationship to the workmanship
of the air filter. Absolutely forbid that
the engine works without air filter or
on the condition that the air filter is
disabled. Taking the intake opening
of air filter as the original intake open鄄
ing is forbidden.
2) For every 1000km running, check
the inlet and exhaust manifold for the
following:
a. 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.
b. Check the inlet and exhaust mani鄄
fold for crack and hole, check the
gasket for damage and erosion, if
found, replace it with a new one.
Air filter
The function of air filter is to filter out
the dust and the sand in the air en鄄
tered into the engine.
Air filter is cyclone dust gathering air
cleaner with paper filter element. Af鄄
ter external air enters into the air filter
through the air inlet pipe, larger dust
particle can be separated from the
air by the function of cyclone vane,
then can be thrown into the dust
gathering plate, the separated air
keep on moving and enter into the
cylinder by the filtering function 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 filter:
1) Remove the dish-shaped nut from
the end cover. Take away the end
cover, remove the inner nut and take
off the filter element assembly.