Atlas Copco QAX 12 Dd S2 APP User Manual

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Not enough power
– Restriction in a fuel pipe.
– Fault in fuel lift pump.
– Dirty fuel filter element.
– Restriction in air filter/cleaner or induction
system.
– Air in fuel system.
– Fault in atomisers or atomisers of an incorrect
type.
– Restriction in fuel tank vent.
– Wrong type or grade of fuel used.
– Restricted movement of engine speed control.
– Restriction in exhaust pipe.
– Engine temperature is too high.
– Engine temperature is too low.
Misfire
– Restriction in a fuel pipe.
– Fault in fuel lift pump.
– Dirty fuel filter element.
– Air in fuel system.
– Fault in atomisers or atomisers of an incorrect
type.
– Fault in cold start system.
– Engine temperature is too high.
– Incorrect valve tip clearances.
The pressure of the lubricating oil is too low
– Wrong grade of lubricating oil.
– Not enough lubricating oil in sump.
– Defective gauge.
– Dirty lubricating oil filter element.
High fuel consumption
– Restriction in air filter/cleaner or induction
system.
– Fault in atomisers or atomisers of an incorrect
type.
– Fault in cold start system.
– Wrong type or grade of fuel used.
– Restricted movement of engine speed control.
– Restriction in exhaust pipe.
– Engine temperature is too low.
– Incorrect valve tip clearances.
Black exhaust smoke
– Restriction in air filter/cleaner or induction
system.
– Fault in atomisers or atomisers of an incorrect
type.
– Fault in cold start system.
– Wrong type or grade of fuel used.
– Restriction in exhaust pipe.
– Engine temperature is too low.
– Incorrect valve tip clearances.
– Engine overload.
Blue or white exhaust smoke
– Wrong grade of lubricating oil.
– Fault in cold start system.
– Engine temperature is too low.
The engine knocks
– Fault in fuel lift pump.
– Fault in atomisers or atomisers of an incorrect
type.
– Fault in cold start system.
– Wrong type or grade of fuel used.
– Engine temperature is too high.
– Incorrect valve tip clearances.
The engine runs erratically
– Fault in fuel control.
– Restriction in a fuel pipe.
– Fault in fuel lift pump.
– Dirty fuel filter element.
– Restriction in air filter/cleaner or induction
system.
– Air in fuel system.
– Fault in atomisers or atomisers of an incorrect
type.

Atlas Copco QAX 12 Dd S2 APP Specifications

General

Brand	Atlas Copco
Model	QAX 12 Dd S2 APP
Category	Inverter
Language	English