Atlas Copco QAS38 User Manual

QAS38 YdS TNV
18 2954 9020 00
6.5.4 Misfire
– Restriction in a fuel pipe.
– Fault in fuel lift pump.
– Dirty fuel filter element.
– Air in fuel system.
– Fault in atomizers or atomizers of an incorrect type.
– Fault in cold start system.
– Engine temperature is too high.
– Incorrect valve tip clearances.
6.5.5 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.
6.5.6 High fuel consumption
– Restriction in air filter/cleaner or induction system.
– Fault in atomizers or atomizers 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.
6.5.7 Black exhaust smoke
– Restriction in air filter/cleaner or induction system.
– Fault in atomizers or atomizers 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.
6.5.8 Blue or white exhaust smoke
– Wrong grade of lubricating oil.
– Fault in cold start system.
– Engine temperature is too low.
6.5.9 The engine knocks
– Fault in fuel lift pump.
– Fault in atomizers or atomizers 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.
6.5.10 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 atomizers or atomizers of an incorrect type.
– Fault in cold start system.
– Restriction in fuel tank vent.
– Restricted movement of engine speed control.
– Engine temperature is too high.
– Incorrect valve tip clearances.
6.5.11 Vibration
– Fault in atomizers or atomizers of an incorrect type.
– Restricted movement of engine speed control.
– Engine temperature is too high.
– Fan damaged.
– Fault in engine mounting or flywheel housing.
6.5.12 The pressure of the lubricating oil is
too high
– Wrong grade of lubricating oil.
– Defective gauge.
6.5.13 The engine temperature is too high
– Restriction in air filter/cleaner or induction system.
– Fault in atomizers or atomizers of an incorrect type.
– Fault in cold start system.
– Restriction in exhaust pipe.
– Fan damaged.
– Too much lubricating oil in sump.
– Restriction in air or water passages of radiator.
– Insufficient coolant in system.
6.5.14 Crankcase pressure
– Restriction in breather pipe.
– Vacuum pipe leaks or fault in exhauster.
6.5.15 Bad compression
– Restriction in air filter/cleaner or induction system.
– Incorrect valve tip clearances.
6.5.16 The engine starts and stops
– Dirty fuel filter element.
– Restriction in air filter/cleaner or induction system.
– Air in fuel system.
6.5.17 The engine shuts down after approximately
15 seconds
– Bad connection towards oil pressure switch/coolant temperature
switch.
– DIP switch on back of module wrong positioned.

Atlas Copco QAS38 Specifications

General

Brand	Atlas Copco
Model	QAS38
Category	Portable Generator
Language	English