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2.3 Mechanical features
The mechanical features described in this chapter are
standard provided on this generator. For all other
mechanical features, see “Overview of the
mechanical options” on page 63.
2.3.1 Engine and alternator
The alternator is driven by an oil-cooled diesel
engine. The engine’s power is transmitted through a
direct disc coupling.
The generator houses a single bearing alternator with
a dedicated voltage regulator.
The synchronous brushless alternator has Class H
rotor and stator windings in an IP23 housing.
2.3.2 Cooling system
The engine is provided with an oil cooler. The cooling
air is generated by a fan, driven by the engine.
2.3.3 Safety devices
The engine is equipped with low oil pressure and high
oil temperature shut-down switches.
2.3.4 Bodywork
The bodywork has openings at the shaped front and
rear end for the intake and outlet of cooling air and a
hood for maintenance and service operations.
The alternator, the engine, the cooling system, etc. are
enclosed in a sound-insulated bodywork that can be
opened at the rear end by means of stirrups.
The QAX 12-20-24-30-35 can be optionally equipped
with either forklift slots or an undercarriage.
The earthing rod, to be connected to the generator’s
earth terminal is located inside the generator.
2.3.5 Frame and axle
The generator/engine unit is supported by rubber
buffers in the frame.
As an option the unit can be equipped with an
adjustable or fixed towbar, an overrun and parking
brake and towing eyes type AC, DIN, ball, GB, IT,
NATO (for options see “Undercarriage (axle, towbar,
towing eyes)” on page 63).
The braking system consists of an integrated parking
brake and overrunbrake. When driving backwards the
overrunbrake is not engaged automatically.
2.3.6 Control panel
The control panel grouping volt and amp gauge,
control switch etc., is placed in the center at the rear
end. It allows easy access to the parts mounted behind
it.
2.3.7 Data plate and serial number
The generator is furnished with a data plate showing
the product code, the unit number and the power
output (see “Dataplate” on page 94).
The serial number is located on the right-hand front
side of the frame.
2.3.8 Drain plugs
The drain holes for the engine oil and the plug for the
fuel, are located and labelled on the frame; the fuel
drain plug at the front, the others at the service side.
The drain flexible for engine oil is brought to the
outside of the generator through the drain hole.
2.3.9 Spillage free
A Spillage free skid avoids accidental spilling of
engine fluids and thus helps to protect the
environment.
The leaking fluid can be removed via drain holes,
secured by drain plugs. Tighten the plugs firmly and
check for leakages. When removing the leaking fluid,
observe all relevant local legislation.
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