Belarus 1025/1025.2/1025.3
Section I. Possible malfunctions
I1
Section I. POSSIBLE MALFUNCTIONS AND CORRECTION
METHODS
Malfunction, symptom
Correction method
DIESEL
Diesel doesn’t start
Air in the fuel system .
Bleed the system using manual fuel priming
pump Remove air infiltration in the fuel
system.
Faulty fuel pump.
Dismount fuel pump from diesel and send to
workshop for repair.
Clogged fuel filters.
Wash coarse fuel filter and replace filtering
elements of fine fuel filter.
Diesel is not heated enough.
In cold weather warm up diesel using
available easy start means.
Diesel doesn’t develop power
Lever of fuel pump control doesn’t move Make adjustment of fuel pump control tie-
the end rods
Filtering element of fuel fine filter is clogged Replace filtering element of fuel fine filter.
Faulty nozzles.
Find out faulty nozzles, wash and adjust
them
Injection lead angle is not properly set
Set recommended injection lead angle.
Charging pressure has dropped.
Dismount turbo supercharger and send it to
workshop for repair .
Air is entrapped inside fuel system . Bleed fuel system using manual priming
pump
Diesel spokes in all operation modes
А. Exhaust tube exudes black smoke
Diesel air purifier is clogged.
Make air purifier maintenance.
Needle of nozzle diffuser is hung. Find out faulty nozzle, wash or replace
diffuser, adjust the nozzle.
Faulty fuel pump.
Dismount fuel pump from diesel and send to
workshop for repair.
Diesel is overloaded.
Reduce diesel loading, having put on lower
gear .
Fuel injection advance angle is set
not correctly
Set fuel injection advance angle.
Summary of Contents for 1025 2008
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