Belarus 1523, Operating Manual

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BELARUS- 1523/1523В /1523.3 /1523В.3 Construction and Operation
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The Engine Feed Circuit consists of an
air-cleaner, air-delivery conduit, induc-
tion/ exhaust manifolds, turbocharger,
exhaust muffler, fuel tanks, coarse and
fine fuel filters, fuel pump, injectors as
well as fuel-injection (high-pressure) and
delivery low-pressure) pipelines.
1 – tank stop tap; 2 – connecting pipe from the fuel tank; 3 – coarse fuel filter; 3a – fuel lift pump; 3b –fuel
hand-operated booster pump; 4 – connecting pipe from the coarse fuel filter; 5 – fuel pump; 6 – plug to
bleed air from the fuel pump head; 7 – fuel offtake pipe from the lower-pressure chamber to the fuel-lift
pump; 8 – pipe to deliver fuel from the fuel-lift pump to the fine fuel filter; 9 – sludge draining plug; 10 –
fine fuel filter; 11 - fuel offtake pipe from the fine filter to the lower-pressure chamber of the pump; 12 –
fuel injection pipe; 13 - pneumatic adjuster; 14 –pipe of air delivery from air-delivery conduit downstream
the turbocharger to the pneumatic adjuster; 15 – induction manifold; 16 – fuel overflow pipe; 17 – fuel
drain pipeline; 18 – fuel overflow pipe; 19 – injector; 20 – cylinder head; 21 – air-cleaner clogging indica-
tor pipeline; 22 – turbocharger; 23 – air-cleaner; 24 – exhaust muffler; 25 – coarse fuel filter (monocyc-
lon); 26 – air-bleeding plug; 27 – plug to drain sludge; 28 – fuel tank; 29 – fuel level gauge float; 30 –
sludge draining nipple; 31 – fuel tank.