Lukas PC 650 - Manual (Page 15)

15
LUKAS hydraulic power units are fi tted with a two circuit or a four circuit pump, depending
on the type. The pumps are rigidly connected to the connecting block.
Double-fl ow pump for operating with 2POWER valve
For-fl ow pump for operating with 4POWER valve
The pumps used always have two pressure stages per pump feed fl ow, one low pressure
and one high pressure.
Low-pressure level (LP) = up to 14 MPa*
High-pressure level (HP) = up to 53 MPa*
The changeover from low pressure to high pressure is carried out automatically by the pump.
The maximum pressure is limited by a pressure limiting valve.
5.5 Pumps
*) 1 MPa = 10 bar
5.6 Frame with side sections
All the hydraulic power units described here are enclosed in a frame.
The frame and the side parts serve to protect the unit from external infl uences (e.g. dirt,
damage etc.) and also for transporting using the frame itself or the carrying handles.
The starter system on units having combustion motors are also mounted on the frame or the
side parts.
5.7 Connection to the control table
Connection to the rerailing equipment is exclusively via the control table. Either via the
connecting hoses rigidly fi xed to the control table or via additional pairs of hose extensions if
the power unit is not installed directly under the control table. The hose extension pairs are
supplied in various lengths.
The individual hoses can, if required, also be marked with coloured snap rings to make it
easier to allocate the hoses.
(For specifi c details, please consult the LUKAS range of accessories or contact your
LUKAS dealer.)
WARNING / CAUTION / ATTENTION!
For safety reasons, the pressure set on this valve must not be adjusted (without
the approval of LUKAS directly)!