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Atlas Copco QAS 200 VoD S3A ESF - Cleaning the Fuel Tank; Draining Condensate Fuel System; Bleeding Fuel System

Atlas Copco QAS 200 VoD S3A ESF
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5.5.4 Cleaning the fuel tank
Place an appropriate drain pan under the drain
plug of the fuel tank.
Remove the flange (2) and the drain plug (1).
Slope the unit. approx. 15° to remove all fuel, dirt
and water.
Clean the fuel tank and fix the drain plug and
flange handtight.
Refill the fuel tank with clean fuel.
5.5.5 Draining condensate fuel
system
Stop the engine and close the fuel tap.
Position a suitable vessel underneath the filter.
Open the drain valve (1) and drain off fuel/water.
Unscrew the water reservoir (2) from the filter
cartridge (3) by turning it clockwise.
Clean the reservoir and screw it back onto the
filter cartridge.
Close the drain valve and open the fuel tap.
Purge the fuel system according to the method,
described in “Bleeding fuel system”.
Test run the engine and check that no leakage
occurs.
5.5.6 Bleeding fuel system
Open the prime pump (1), by pressing it in and
turning it counter-clockwise.
Purge the fuel system by pumping at least 250
strokes on the prime pump. Pump rapidly, to
maintain pressure in the pump.
Purging is not complete while resistance is felt in
the pump.
Close the prime pump (1) by pressing it in and
turning it clockwise.
Start the engine and let it idle for at least 5
minutes, before speed is increased
Observe all relevant environmental
and safety precautions.
Never leave spilled liquids such as
fuel, oil, water and cleansing agents
in or around the generator.
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