Lukas ZPH 3/4 - Manual (Page 23)

23
Connected device not
reaching its limit position
Fluid level in the hydraulic
tank too low
Add hydraulic fluid up to
max. fill level.
Attention: move the
device back into the
base position before
adding fluid!
Usable hydraulic fluid
quantity of the pump is
insufficient
Use a different device with
a usable quantity below
the maximum usable
quantity of the pump.
Connected device does
not achieve its power-
related performance data
Max. permissible operating
pressure of the pump is
not reached
Replace pressure
control valve or have
it recalibrated by an
authorised dealer or
directly by LUKAS.
Fluid leaks on the
hydraulic fluid tank
(especially at the refill tap)
Due to return flow of the
hydraulic fluid from the
device, the maximum fill
quantity of the tank is
exceeded
Reduce hydraulic fluid
down to max. fill level.
Seals defective Replace seal.
Hydraulic fluid with milky
cloudiness
Water or condensation
water in the system
Perform hydraulic fluid
change immediately.
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.
Problem Cause Remedy