Manual

14
14 Troubleshooting
If the defects cannot be repaired, contact an authorised LUKAS dealer or the LUKAS
service department.
The address: LUKAS Hydraulik GmbH, Weinstraße 39, D-91058 Erlangen, Pf 2560,
D-91013 Erlangen, service phone [phone]; fax [phone]
Trouble Check Cause Remedy
Hoses cannot be Pressurized Relieve pump
coupled pressure
On actuating blades Hoses correctly Air in the hydraulic Thoroughly vent pump
move slowly or by connected, system unit: see 9.1.1
jerks power pack
operating
No pressure build-up Not enough oil in Refill oil and vent the
hand resp. motor system (see
pump. Vent pump operating instruction
after changing oil. 9.1.1)
Star grip doesn't Return spring is Ask authorized dealer
return to middle damaged or return or LUKAS themselves
position when mechanism is dirty for repair
released
Oil leakage out of Untightness, Replace hoses
hoses or hose fittings eventually damages
Surface of hydraulic Contact wirh Change hoses
hoses is dissolved agressive fluids
Blades spread up at Torque of the center For retightening, see
tips to a gap of more bolt nut is unsufficient 13.2.1
than
3 mm (LS511EN) /
5 mm (LS501EN,
LS530EN) even if not
fully loaded
Leakages on the Defective piston rod Replacement of seals
piston rod seal by authorized dealer
or LUKAS themselves