41
EN
www.KUKKO.com
KUKKO Werkzeugfabrik
Series YRH - YRE - YSM
#
description of error
Cause of error
resolution of error
13 Cylinder extends
abnormally slowly.
Coupling on a valve is not
completely tightened.
Check all connections
and valves and tighten
them, if necessary.
if necessary, disassemble
and reassemble the
hydraulic system.
14
Pump is defective.
use an operative pump.
15 Cylinder does extend,
but does not hold with
a load.
Pump is defective.
use an operative pump.
16
Cylinder seals leak.
Have the cylinder
serviced by the
manufacturer or by
a trained hydraulics
technician.
17
Coupling on a valve is not
completely tightened.
Check all connections
and valves and tighten
them, if necessary.
if necessary, disassemble
and reassemble the
hydraulic system.
18
the workpiece yields
[under pressure].
Stop the operation and,
if necessary, find another
suitable location to
position the cylinder.
19 Cylinder leaks oil.
Cylinder seals leak.
Have the cylinder
serviced by the
manufacturer or by
a trained hydraulics
technician.
20
damage inside the
cylinder.
Switch the cylinder off.
if necessary, send it to
the manufacturer for
repair or replace it with a
new one.
21
Connection is not tight.
one of the connections
is not tight. tighten the
connection with a suit-
able tightening tool, such
as a wrench. if necessary,
have the connection of
the cylinder resealed by a
hydraulics technician.
