Lukas LH 2/ 1,8-70 DIN - Manual (Page 22)

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In the case of a
monocoupling system:
Hose lines cannot be
coupled
They are under excessive
pressure (e.g. due to
excessive ambient
temperature)
Open discharge valve and
bleed device.
Coupling defective Coupling should be
replaced immediately.
In the case of a
monocoupling system:
Hose lines frequently
cannot be coupled
Hydraulic fluid of the
application situation not
adapted
Hydraulic fluid needs
to be changed (see the
chapter “Hydraulic fluid
recommendation” for more
information).
Coupling defective Coupling should be
replaced immediately.
In the case of a quick-
disconnect coupling
system: Hose lines cannot
be coupled
System is under pressure Open discharge valve and
bleed device.
Coupling defective Coupling should be
replaced immediately.
In the case of a
monocoupling system:
Leakage at the couplings
Coupling defective Coupling should be
replaced immediately.
In the case of a quick-
disconnect coupling
system: Leakage on the
male coupling
Safety valve has
responded (in the
decoupled state)
After depressurisation, no
further leakage occurs.
Male coupling defective Male coupling should be
replaced immediately.
In the case of a quick-
disconnect coupling
system: Leakage at the
female coupling
Female coupling defective Female coupling should be
replaced immediately.
Hydraulic fluid escaping
from the hoses or at the
joints
Leakage, possible damage Replace hoses.
Damage on the surface of
the hydraulic hoses
Mechanical damage or
contact with aggressive
media
Replace hoses.
If the defects cannot be remedied, notify an authorised LUKAS dealer or contact LUKAS
Customer Service directly!
The address of LUKAS customer service is:
LUKAS
Hydraulik GmbH
Weinstraße 39, D-91058 Erlangen
Postfach 2560, D-91013 Erlangen
Phone: (+49) 09131 / 698 - 348
Fax.: (+49) 09131 / 698 - 353
Problem Cause Remedy