Atlas Copco QAS28 Yd(S) - Overview of the mechanical options; Description of the mechanical options; External fueltank connection; Undercarriage (axle and towbar)

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The following "mechanical" options are available for the QAS28
units:
– external fueltank connection
– undercarriage (axle and towbar)
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The option "External fueltank connection" allows to bypass the in-
ternal fueltank and to connect an external fueltank to the unit.
When using this option, make sure to connect the fuel supply line
as well as the fuel return line. Always put both valves in the same
position (either internal or external tank) and make sure that they
are in the extreme (horizontal) position. Connections to fuellines
ought to be air-tight to prevent air from entering the fuel system.
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The undercarriage is equipped with an adjustable towbar with DIN-
eye, AC-eye or ball coupling and with road signalisation which is
approved by EC legislation.
When using this option:
– Make sure that the towing equipment of the vehicle matches the
towing eye before towing the generator.
– Never move the generator while electrical cables are connected to
the unit.
– Always apply the hand brake when parking the generator.
– Leave enough space for operation, inspection and maintenance (at
least 1 meter at each side).
To maintain the undercarriage:
– Check the tightness of the towbar bolts, the axle bolts and the wheel
nuts at least twice a year and after the initial 50 hours of operation.
– Grease the wheel axle suspension bearings, the drawbar to the steer-
ing gear shaft and the spindle of the brake handle at least twice a
year. Use ball bearing grease for the wheel bearings and graphite
grease for the drawbar and spindle.
– Check the brake system twice a year.
– Check the condition of the vibration dampers twice a year.
– Repack the wheel hub bearings once a year using grease.
Indicates the fuel supply line from the tank to the en-
gine.
Indicates the fuel return line from the engine to the
tank.
Indicates the internal fueltank.
Indicates the external fueltank.