Belarus 1523, Operating Manual

Page: 64 / 312

BELARUS- 1523/1523В /1523.3 /1523В.3 Construction and Operation
63
The Fine Fuel Filter (FFF) has two re-
placeable filter elements, unitized with
the engine Д -243. Each filter element is
installed in a separate easily dismount-
able cartridge of a filter.
The fine fuel filter is intended for multiple
usages subject to regular replacement of
filter elements and rubber gaskets and
observance of the operating instructions.
To bleed air from the engine fuel feed
circuit, the filter bowl is provided with a
plug (3), refer to Figure below.
The fuel is injected into the cylinders by
the closed-type injectors with five-bore
nozzles.
NOTE: Starting from the second half-
year of 2003, the tractor engines are
fitted with fine fuel filters with one filter
element fully unitized with an FFF of
the Д -243 four-cylinder engines and
their modifications. The plug serves for
bleeding off air from the engine fuel
feed system.
1 – inlet port; 2 – outlet port; 3 – plug for bleeding the air; 4 – filter housing; 5 – fitting union; 6 – inlet
opening; 7 – head; 8 – fitting union; 9 – pressing plate; 10 – filter elements; 11 – fuel outlet passage; 12 –
spring; 13 – bowl; 14 – nut; 15, 16 – gaskets; 17 – drain plug.