Lukas Concrete crushers - Manual (Page 39)

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10.3.4 Quick-disconnect coupling
The quick-disconnect-couplings must be replaced if:
- there is external damage
- the locking mechanism does not work
- hydraulic fluid continues to leak in the coupled/uncoupled state.
WARNING / CAUTION!
Never repair couplings: they must be replaced by original LUKAS parts!
During assembly, tighten the union nuts on the hose line to a torque of M
A
= 35 Nm.
Procedure:
1. Loosen the union nuts on the hose line and remove the coupling.
2. Position the new coupling and tighten the union nuts on the hose lines to a
torque of M
A
= 35 Nm.
CAUTION!
The return hose, which is screwed onto the port “T” of the recycling unit, must
always be fitted with a male quick-disconnect coupling.
However the supplying hose line must be fitted with a female quick-disconnect
coupling.
10.3.5 Control valve
Should the control 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.
10.3.6 Labels
All damaged and/or illegible labels (safety notices, type plate etc.) must be replaced.
Procedure:
1. Remove damaged and/or illegible labels.
2. Clean surfaces with industrial alcohol.
3. Attach new labels.
Ensure that you attach the labels in the correct position. If this is no longer known, you should
ask your authorised LUKAS dealer or contact LUKAS directly.