Lukas Compact Units - Manual (Page 11)

11
WARNING / DANGER / CAUTION!
In the interests of safety, the pressure set at this pressure limiting valve must not
be adjusted (without direct approval of LUKAS).
5.4 Frames
All hydraulic units for the rerailing equipment are supplied with a frame. The frame enables
optional accessories to be attached directly to it. In addition, the frame makes the unit easier
to transport, thanks in particular to the integral carry handles.
5.5 Connection to the control unit
5.6 Connection options
The unit is connected to the control unit by means of hoses or pairs of hoses. These
are available in various lengths, coloured bend protections and with various connection
options.
The individual hose lines in a hose pair are distinguishable by their different colour, which
helps to prevent confusing the supply line for the return line.
(For specific details, please consult the LUKAS range of accessories or contact your
LUKAS dealer).
On the hydraulic unit, the supply and return lines are connected to a connecting block or
valve block.
The standard range is designed to support only direct hose connections or quick-disconnect
couplings.
5.7 Optional accessories
5.7.1 Hose reels
Some hydraulic unit frames allow hose reels to be fitted. The use of attachment reels makes
it possible to route the optimum length of hose for a specific application and to keep the
amount of hose needed in the work area to a minimum.
The hose reels are connected to the pump assembly mechanically and hydraulically. The
hydraulic connection is achieved either by hose lines or by pipework.
(To find out whether suitable attachment reels are available for your unit, please consult your
authorised LUKAS dealer or LUKAS directly.)
5.7.2 Drain valves
Some hydraulic units can be equipped with a drain valve instead of the connecting block.
The advantage of the drain valve is that, when it is opened (handwheel turned clockwise to
the stop), the hydraulic unit is switched to depressurised circulation. It is only when the valve
is closed (handwheel turned anti-clockwise to the stop) that the connected control unit and
the associated implements are made ready for operation.
It is possible to have the connecting block replaced by a drain valve at a later time.
The hose lines or pipework are connected to the drain valve in the same way they are
connected to the connecting block
(To discuss the purchase of a drain valve, please contact your authorised LUKAS dealer or
LUKAS directly.)