Lukas SC 557 - Manual (Page 36)

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10.3.9 Quick-disconnect-couplings
The quick-disconnect-couplings must be replaced in the event of:
- external visible damage,
- the locking device not working,
- hydraulic
fl uid continually leaking in a coupled/uncoupled state.
WARNING / CAUTION!
Never repair couplings: they are to be replaced by original LUKAS parts!
During assembly, tighten the connection nut of the hose assembly with a torque of M
A
= 35 Nm.
Procedure:
1. Loosen the connection nut of the hose assembly and remove the coupling.
2. Position the new coupling and tighten the connection nut of the hose assemblies
with a torque of M
A
= 35 Nm.
CAUTION!
The return hose, which is screwed onto the port “T” of the rescue tool, must be
equipped with a quick-disconnect-coupling (male) always.
However the supplying hose line must be equipped with a quick-disconnect-
coupling (female).
10.3.11 Labels
All damaged and/or illegible labels (safety notices, type plate, etc.) must be renewed.
Procedure:
1. Remove damaged and/or illegible labels.
2. Clean the surfaces using industrial alcohol.
3. Attach new labels.
Ensure that you attach the labels in the right position. If you are no longer sure about this,
then please contact your authorised LUKAS dealer or LUKAS itself.
10.3.10 Control valve
Should the safety valve be deformed so severely that the star grip no longer functions
correctly, the valve must be replaced in its entirety.
Have repairs carried out by an authorised dealer, by personnel specially trained by LUKAS,
or by LUKAS customer service only.