Lukas Concrete crushers - Manual (Page 41)

41
Damage on the
surface of the
hydraulic hoses
Mechanical
damage or contact
with aggressive
agents
Replace hoses.
Hydraulic fluid leaks
on the piston rod
Defective rod seal Repair of fault by
authorised dealer,
specially trained
LUKAS staff or
directly by LUKAS
Damage to the
piston
Leak on the handhold Does the pressure
set on the pump
comply with
the maximum
permissible
pressure on the
recycling unit?
Pressure drop in
recycling unit
After pressure
release, there is no
more leakage.
Should, however,
there be a further
leak on the handhold,
immediately
deactivate the
recycling unit and
contact an authorised
dealer or LUKAS
itself.
Hoses in handhold
loose?
Hoses in handhold
not tightened
Tighten hoses.
Is the return
hose connected
correctly?
Return hose is not
coupled correctly
or not connected.
Re-connect the return
hose and secure it.
Especially when
using quick-
disconnect couplings:
Leak on the handhold
Is the return
hose connected
correctly?
Return hose is not
coupled correctly
or not connected.
Re-connect the return
hose and secure it.
Especially when
using mono-
couplings: Leak on
the handhold
Check the
connections of the
hoses
Hose connection
to the couplings
interchanged
Reconnect the hoses
to the coupling in the
correct way
Return line
constricted
Disconnect the
return line from the
coupling, clean it and
reconnect it.
With mono-coupling-
system: Leak in the
couplings
Is the coupling
damaged?
Coupling defective Coupling must be
replaced immediately
Trouble Check Cause Solution