Weifang 495 Operation And Maintenance Manual page 2

Foreword
Model 495 diesel is a high speed engine of four-stroke,verti-
cal, four - cylinder, water - coolea, swirl combustion chamber
type. It is one of the Chinese designed 95 series products. It pos-
sesses the advancec;llevel of its dynamic characteristic and fuel eco-
nomics ,and has thd proven features of simple construction, relia-
bility, versatility to the maliti -purpose applications and higher de-
gree of. standardization, seriation and inter - changeability. 95 se-
ries diesel
e~gine
was prized by the National Science Congress in
1987.
In recent years , with the hell) of the technology introducetl
from Ricardo Consulting Engineers pIc' of Great Britain and the ad-
vanced design' features of R series, the design of Model 495 is modified
so as to improve its dynamic characteristic, economic index and
it~
reli-
ability.
According to the requirements of the driven equipments ,vari-
ous versions of Model 495 diesel engine can be developed by modi-
fying some parts and components relevantly so as to satisfy the
different applications, such as tractors, trucks, construction
~a­
chineries, agricultural drainage and irrigation pumps, agricultural
sideproducts
proce~sing
machineries, marine propulsion, generator
set~
,well
drill~ng
machineries and so on, The following models of
the engine are av&ilable:
1. Model 495 - The basic version. (,Its) rated power is taken
off at the flywheel end, It can be used readily as a prime mover 'of
the land machinery.
2. Model 495T-The version used for tractor. Provided with a
fla.nged cast iron oil sump and a connecting plate ,it is used to pow-
er wheel tractor of model 50.
1