Atlas Copco XAS 130 DD7 C3 APP, Инструкция по эксплуатации

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Compressor element
The compressor casing houses two screw-type rotors,
mounted on ball and roller bearings. The male rotor,
driven by the engine, drives the female rotor. The
element delivers pulsation-free air.
Injected oil is used for sealing, cooling and
lubricating purposes.
Compressor oil system
The oil is boosted by air pressure. The system has no
oil pump.
The oil is removed from the air, in the air/oil vessel
first by centrifugal force, secondly by the oil separator
element.
The vessel is provided with an oil level indicator.
Regulation
The compressor is provided with a continuous
pneumatic regulating system and a blow-down valve
which is integrated in the unloader assembly. The
valve is closed during operation by outlet pressure of
the compressor element and opens by air receiver
pressure when the compressor is stopped.
When air consumption increases, the air receiver
pressure will decrease and vice versa.
This receiver pressure variation is sensed by the
regulating valve which, by means of control air to the
unloader and engine speed regulator, matches the air
output to the air consumption. The air receiver
pressure is maintained between the pre-selected
working pressure and the corresponding unloading
pressure.
Cooling system
Engine and compressor are provided with an oil
cooler.
The cooling air is generated by a fan, driven by the
engine.
Safety devices
A thermal shut-down switch protects the compressor
against overheating. The air receiver is provided with
a safety valve.
The engine is equipped with low oil pressure and high
oil temperature shut-down switches.
Frame and axles
The compressor/engine unit is supported by rubber
buffers in the frame. The standard unit has a non-
adjustable towbar with support leg and one of the
following towing eyes AC, DIN, ball, ITA, GB or
NATO.
As an option, the machine can be delivered with a
spillage-free frame, an adjustable towbar, a jockey
wheel and/or overrun parking brake (for options see
chapter Available options ).
The braking system consists of an integrated parking
brake and overrunbrake. When driving backwards the
overrunbrake is not engaged automatically.
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
bodywork is internally lined with sound-absorbing
material.
Lifting eye
A lifting eye is accessible when the small door at the
top of the unit is unlocked.
Control panel
The control panel grouping the air pressure gauge,
control switch etc., is placed in the center at the rear
end.
Data plate
The compressor is furnished with a data plate (D)
showing the product code, the unit number and the
working pressure (see chapter Dataplate ).
Serial number
The serial number is located on the right-hand front
side of the frame.
Generator (option for XAS 67 - XAS 130 and
XAS 97 - XAS 185)
The built-in generator is driven by a multi V-belt
drive. The generated current can be drawn via 3
sockets (see chapter Technical specifications ).
The compressor and the generator of the XAS 67 -
XAS 130 may be used simultaneously. The
compressor and the generator of the XAS 97 - XAS
185 may not be used simultaneously.
As an option the generator can be equipped with an
automatic control system to save fuel when no
electric power is used.