Instruction Manual

36
Troubleshooting10.
Problem Check Cause Solution
Jack piston moves
slowly or erratically
during operation
Hose lines
connected
correctly?
Air in hydraulic
system
Bleed pump system
Pump assembly
running?
Device does not build
up specied force.
Hydraulic uid
level in supply
pump?
Insufcient
hydraulic uid in
pump
Top up hydraulic uid
and bleed
Check operating
pressure of
hydraulic
assembly
Insufcient supply
pressure
If possible, increase
the max. operating
pressure at the
hydraulic unit to
the max. operating
pressure of the
cylinder or use a
different hydraulic
unit with sufcient
max. operating
pressure.
Check device Device defective Shut down device
and repair (have
repaired)
hose assembly
cannot be coupled
Pressurised Switch the pump
to depressurised
circulation
Coupling defective Coupling needs to be
replaced immediately
Hydraulic uid
leaking from hoses or
connections
Hose lines
defective?
Leak, possible
damage
Replace hoses
Damage to surface of
hydraulic hose lines
Mechanical
damage or contact
with aggressive
media
Replace hoses
Hydraulic uid leaking
from piston rod
Piston rod seal
defective
Have problem
rectied by
authorised dealer,
personnel trained by
LUKAS or LUKAS
directly
Piston damaged
Leak from couplings Coupling
damaged?
Coupling defective Coupling needs to be
replaced immediately