Fuel Filter - Kubota D650-B Handbuch

(A] Fuel System
121
131
OOllF035
(4)
While the engine is running, fuel is fed from
the fuel tank (optional part) through the
fuel filter to the fuel pump, which feeds fuel
to the injection pump. The injection pump
then feeds the fuel through the injection
pipes, to the nozzles which inject fuel to the
cylinders for combustion. Any fuel leaking
from nozzles is collected in the fuel overflow
pipes which drain into the tank.
(11
Fuel tank
(2)
Fuel filter
(3) Fuel pump
(4)
Injection pump
(S)
Injection pipe
(6) Injection nozzle
(7)
Fuel overflow pipe
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4-1 FUEL FILTER
[A]
Fuel Filter
A fuel filter is used to prevent dirty fuel from reaching the
injection pump and injection nozzles. The filter element will
require occasional replacement to maintain an adequate flow
of fuel to the injection pump. The frequency of this service
will vary according to the cleanliness of available fuel and the
care used in storage.
Fuel pumped by the fuel pump from the fuel tank is filtered
by the fuel filter between the tank and pump to eliminate
foreign matter and protect injection pump and nozzles.
When fuel enters the filter, it passes through the filter
element's circumference toward the center for filtering.
The maximum filtrated granular sile of this element is 48
J.Lm (0.048 mm, 0.0019 in.), and general size is from 10 to 20
J.Lm (0.01 to 0.02mm, 0.0004 to 0.0008 in.).
11 )
Cock
body
(2)
Retaining ring
(31
Element
(4)
Filter cup
64