Lukas CU 4DVV - Manual (Page 20)

20
Contact an authorised LUKAS dealer or the LUKAS Customer Service Department directly
if the malfunctions cannot be rectifi ed.
The address for the LUKAS Customer Service department is:
LUKAS
Hydraulik GmbH
Weinstrasse 39, D-91058 Erlangen, Germany
PO Box 2560
D-91013 Erlangen
Tel.: (+49) 09131 / 698 - 348
Fax.: (+49) 09131 / 698 - 353
Hoses cannot be
coupled Lines are under
pressure because
there is pressure in
the system Remove the
pressure or residual
pressure (see Page
12)
Coupling defective Coupling must
be replaced
immediately
Leak from the
couplings Is the coupling
damaged? Coupling defective Coupling must
be replaced
immediately
Cylinders
automatically
lower under load Check position
of pressure relief
valves Operating error Switch pressure
relief valve to
position I