6. FUEL INJECTION EQUIPMENT
136
6.3 Fuel Filter
The fuel filter is installed between the fuel feed pump
and fuel injection pump, and removes dirt/foreign matter
from the fuel pumped from the fuel tank.
The fuel filter element must be changed periodiically.
The fuel pumped by the fuel feed pump goes around
the element, is fed through the pores in the filter and
discharged from the center of the cover. Dirt and foreign
matter in the fuel are deposited in the element.
6.3.1 Fuel filter specifications
6.3.2 Fuel filter inspection
The fuel strainer must be cleaned occasionally If there is water or foreign matter in the strainer bowl,
disassemble the strainer and wash with clean fuel oil to completely remove foreign matter. Replace the
element every 250 hours of operation.
Replace the filter prior to this if the filter is very dirty, deformed or damaged.
Filtering method
filter paper
Filtering area
840 cm
2
Maximum flow
1.5 L/min
Pressure loss
20 mm Hg or less
Max. dia. or unfiltered particle
10
μ
Inlet from
feed pump
Outlet to fuel
injection pump
Fuel return pipe
joint bolt
(Auto air bleeding)
Element
80
63
77.5
85
75
M20 X 1.5 Make sure there are
3.5 effective threads
8- 6 hole
38
10
(0.3937)
