Manual

12
13.3.5 Labels
All damaged or illegible indentification stickers (Safety instructions, type label a.s.o) have to be
replaced.
Procedure:
Remove damaged stickers and clean surface with acetone • Put on new stickers.
13.3.6 Quick couplers
Quick couplers on the 0,5m hoses have to be replaced when
- external damage can be observed
- the locking sleeve doesn´work any more
- oil spill occurs even when the coupling is properly connected
Remark: Faulty couplers have to be changed completely against genuine LUKAS spares, i.e. it
is not permissible to make any repair work.
The retaining nut on the hoses has to be tightened with a torque of M
A
= 45 Nm
13.3.7 Hood of the valve block
If the hood is damaged so seriously that the star grip doesn´t return any more to zero position
automatically the valve has to be replaced completely or the hood has to be replaced by a authorized
LUKAS dealer or the LUKAS service department.
14 Troubleshooting
If the defects cannot be repaired, contact an authorized 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 pressure
coupled
On actuating blades Hoses correctly Air in the hydraulic Thoroughly vent pump
move slowly or by connected power system unit: see 9.1.1
jerkspack operating
No pressure build-up Not enough oil in hand Refill oil and vent the
resp. motor pump. system (see operating
Vent pumpe after instruction 9.1.1)
changing oil
Star grip doesn't return Return spring is Ask authorized dealer or
to center position when damaged or return LUKAS themselves
released mechanism is dirty for repair
Oil leakage out of Untightness, eventually Replace hoses
hoses or hose fittings damages
Surface of hydraulic Contact with Change hoses
hoses is dissolved agressive fluids
Leakages on the Seal defective piston Replacement of seals
piston rod rod by authorized dealer or
LUKAS themselves