14 troubleshooting – Lukas LSP 80 EN User Manual
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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 09131/698 348; fax 09131/698 353.
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