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MAZ 631236 - Page 50

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1 2 3
3.1 The battery is discharged
or the chains supply of the
control unit is absent.
It is necessary to check the
battery, safety devices of the
supply chains of the system and
change them if necessary.
3.2 The motor brake is
switched on.
It is necessary to check the
motor brake system.
3.3 Air presence in fuel. It is necessary to eliminate air
inflow and to pump fuel system.
3.4Low-quality fuel
It is necessary to change fuel
3.5 The crankshaft sensor is
out of order.
It is necessary to check sensor of
the crankshaft , its electric chains
and to eliminate faultiness.
3 The engine doesn’t start or
works not stably
3.6 Engine electronic block
is out of order.
It is necessary to change the
engine electronic block.
4.1 The motor brake is
switched on.
It is necessary to check the
motor brake system.
4.2 Hermiticity of the
absorbing fuel tube is
disturbed
It is necessary to check
hermiticity of fuel system, to
eliminate faultiness and to pump
fuel system.
4.3 Dangerous oil pressure
fall. Engine overheating.
It is necessary to check oil
pressure and level in the engine.
4.4 Hermiticity is disturbed
or the turbocharging system
is out of order.
It is necessary to check the
turbocharging system and
change turbocharger.
4 The engine doesn’t develop
total power or cuts out.
4.5 Electronic engine block
is out of order.
It is necessary to change
electronic engine block.