Lukas LZR 12-700 EN - Manual (Page 12)

12
11.3.2 Set of identification stickers
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.
11.3.3 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
12 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
09131/698 348; fax 09131/698 353.
Trouble Check Cause Remedy
Hoses cannot be Pressurized Relieve pump pressure
coupled
On actuating pistons
Hoses correctly Air in the hydraulic Thoroughly vent pump
move slowly or by connected power system unit: see 8.1.1
jerks pack 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 8.1.1)
changing oil
Star grip doesn't return Return spring is Ask authorized dealer or
to middle position when damaged or return LUKAS themselves
released mechanism is dirty
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