Lukas LSI 55 - Manual (Page 19)

19
13 Troubleshooting
If the defects cannot be repaired, contact an authorised LUKAS dealer or the
LUKAS service department.
The address of the LUKAS service department is:
LUKAS Hydraulik GmbH, Weinstraße 39, D-91058 Erlangen; PF 2560, D-91013
Erlangen Kundendienst Tel 09131/698 348; Fax 09131/698 353.
Trouble Check Cause Remedy
Hoses cannot be
coupled Pressurized Relieve pump
pressure
Blades move slowly
or by jerks when
actuated Hoses correctly
connected, power
pack operating Air in the hydrallic
system Thorougly vent
pump unit
No pressure build-up Insufficient oitl in
the hand or motor
pump. Pump not
ventilated after oil
change Refill oil an
ventilate the
system
Star grip does not
return to the middle
position when
released Damage of the
return spring for
resetting, fouling Repair by an
authorized dealer
or directly by
LUKAS
Oil leakage out of
hoses or hose fittings Untightness,
possible
damages Replace hoses
Surface of the
hydraulic hoses is
dissolved Contact wirh
aggressive media Replace hoses
Blades spread up at
tips to a gab of more
than 3 mm (LSI511
and LSI55) and more
than 5 mm (LSI501
and LSI530)
respectively Torque of the
central bolt nut is
insufficient Retighten, see
chapter 12.2.1
Leakages: leaks at
the piston rod Defective piston
rod seal Changing the
seals by an
authorized dealer
or directly by
LUKAS