User Manual

12
13.3.3 Change of protection boot
The rubber protection boot shall protect the operator against injuries caused by the moving levers.
If the boot is damaged it has to be replaced.
Procedure:
Remove the carrying handle (held by 2 screws) • Dismount cutter blades / blade arms (see 13.3.1)
• pull the faulty boot from the cylinder body and place the new one properly, i.e. that the carrying
handle fixing screws go easily through the corresponding holes in the boot. Mount and tighten
carrying handle.
13.3.4 Carrying handle (see cover page item 6)
Damaged carrying handles have to be replaced immediately.
Procedure:
Remove the handle (held by 2 screws) and change it against a new one • Change screws and disks
if necessary.
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.
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 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
jerks pack operating
No pressure build-up Not enough oil in hand Refill oil and vent the
resp. motor pump. system (see operating
instruction 9.1.1)
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 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
Blades spread up at Torque of the center For retightening, see
tips to a gap of more bolt nut is unsuffisient 13.2.1
than 3 mm even if not
fully loaded
Leakages on the Seal defective piston Replacement of seals
piston rod rod by authorized dealer or
LUKAS themselves