Lukas P 660 SG - Manual (Page 9)

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5.2 Motor
These hydraulic units are equipped with a 4-cycle combustion engine, which is operated with
petrol. (refer to chapter "Fuel")
5.3 Control valve
ATTENTION!
In the operation of multiple rescue devices with a unit, make sure that the usable
amount of hydraulic À uid in the À uid tank is greater than the maximum possible
amount of operating À uid of all connected rescue devices together!
The installed valve makes it possible to supply two devices simultaneously with pressure.
The pressure supply of both hydraulic connections, and consequently the pressure supply of
the connected rescue devices, can be controlled by way of the two control switches.
5.4 Pumps
LUKAS SUPER SILENT units are equipped with a dual À ow pump.
Dual À ow pump 2 pump delivery À ows
The pumps used are always equipped with two pressure circuits per pump delivery À ow,
a low-pressure and a high-pressure circuit.
Low-pressure circuit (ND) = up to 14 MPa*
High-pressure circuit (HD) = up to 70 MPa*
The switch from low pressure to high pressure is automatic in the pump.
The maximum pressure is limited by a pressure control valve.
WARNING / CAUTION / ATTENTION!
For safety reasons, the pressure set at this valve must not be changed (without
the direct consent of LUKAS)!
In all LUKAS hydraulic units, a motor typically operates a hydraulic pump, which delivers
À uid from the tank and builds the pressure. The distribution of the À uid is then controlled by
integrated valves.
*(1 MPa = 10 bar)
5.5 Connection to rescue devices
The connection to the rescue devices is created by extension hose pairs or hose reels. They
are offered in different lengths, anti-kink colours and different connection options.
The standard hose pairs from the LUKAS line of accessories are always equipped with
monocouplings on at least one end in order to connect them to LUKAS rescue devices. The
individual hose lines of a hose pair can be differentiated by the different colours in order to
avoid confusion of the pressure and return lines.
(For more details, please refer to the LUKAS line of accessories or contact your LUKAS
dealer.)