Lukas LSI Series Cutter - Manual (Page 12)

12
13 Repairs
13.1 General
Servicing must be carried out only by the device manufacturer or by personnel trained
by the manufacturer or the authorised LUKAS dealers.
For replacement on all components, use only genuine LUKAS spare parts as specifi ed
in the spare parts list, as here possibly required special tools, mounting information,
safety aspects, testing must absolutely be taken into account. See section 4.
Protection of the device against hydraulic overload
Through uncorrect hose connection or temperature increase pressure can be built up
in the cylinder unintentionally. Therefore, the return hose (0,5 m / blue) of the tool is
equipped with a safety coupling (quick connect plug, colour yellow). Overpressure (ap-
prox. 1.5 MPa) is released through this plug: oil comes out. This oil is not a malfunction
of the plug!
Should the tool have been equipped with couplers of different brand which do not have this safety
function, overpressure would be released through another safety valve (adjusted to approx.
30 MPa) included with the control valve block. In this case oil spill would be observed
in the star grip area.
As soon as suffi cient pressure is released the valve becomes tight again. Should further
constant leakage ocur, please have the tool inspected by LUKAS personnel.
13.2 Preventive maintenance
13.2.1 Routine inspections
Regularly check the central bolt tightening torque. M
A
= Torque (see item 15.2).
Damaged blades can be repaired by regrinding of the cutting edge up to a total of 0.5
mm. Special care must be taken to have the inner cutting faces run parallel.
Attention !
When you are working with the cutter blades pointing upwards, it must be made sure
that no larger objects are falling into the rubber protection boot. Such objects might get
jammed into the lever system which can cause serious damage to the tool.
After each application in upright position the cutter head must be inspected on eventual
pollution, and it must be cleaned if necessary
picture 1
Remove handle and pull the protection boot back.