Weifang 495 Operation And Maintenance Manual page 34

ChapteI:
x.
Model.495''[
Diesel
Engine.:. . f or·:Tractor·"
1. Constructional Features , "
Being served as the power of the tractor ,model 495T diesel is
a version of the model 495 engine. TIle main specification, con-
struction, adjustments and maintenances of this version are the
same as those of model 495 diesel engine. Hence only its construc-
tional features and the relevant affairs in operation and mainte-
nance which differs fronl other versions will
be
d'escribed in this
chapter.
Model 495T diesel engIne
IS
provided with
a
model K 1317A
air cleaner of two - stage
dry
type. It consists mainly
of
upper
cas-
ing, guide vanes, paper filter element and lower casing, etc,
as
shown in Fig. 36.
The air cleaner
IS
fitted
011
the air intake manifolcl which
In-
takes air from one of its ends.
Being provided with a dry
type cyclone,
this air cleaner is good
in performace of rough filtering- It is especially suitable to be used
in the dusty and dry
working
ambient.
While the engine
is
iri operation,
the
air entering
into
the
up-
per casing through its inlet port along the tangential direction
froms a swirl movement, which grows very strong and flows down-
wards after passing through the guide vanes. The dust particles
contained in the
air are
separated
out
under the
action of the cen-
trifugal force and fall into the bottom of the lower casing..
A..t
this
time, the air stream changes its moving direction, arld enters into
the inner space of the filter element from its outside to complete
its further filtration.
112