Lukas SC 557 - Manual (Page 38)

38
Hydraulic fl uid leaks
on the piston rod Defective rod seal Repair by an
authorised dealer, by
personnel specially
trained by HURST, or
by HURST itself
Damage to the
piston
Leak on the handhold Increase load?
(combi tool when
spreading)
Load increase
(e.g. something
has fallen onto the
part to be lifted,
thereby suddenly
increasing the
load) Secure the loads and
move them by using
other tools
Move the load
somewhere else,
where the moving
load is lighter
Use supporting
equipment to move
the load.
Does the pressure
set on the pump
comply with
the maximum
permissible
pressure on
the rescue
equipment? Pressure release
in the Rescue tool. Following the
reduction in pressure,
no further leak is
present.
Should, however,
there be a further
leak on the handhold,
immediately
deactivate the rescue
equipment, and
contact an authorised
dealer or HURST
itself.
Hoses in handhold
loose? Hoses in handhold
not tightened Tighten hoses.
Check the
connections of the
mono-coupling
(female) Supply and return
connection of the
mono-coupling
(female) inverted Reconnect the
hoses of the mono-
cooupling (female) in
the right way
Especially by usage
of 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 by usage
of 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
right way
Returnline
disabled disconnect the
returnline from the
coupling, clean it and
reconnect it.
with mono-coupling-
system: Leak in the
couplings Is the coupling
damaged? coupling damaged Coupling must be
replaced immediately
Trouble Control Cause Solution