Lukas Compact Units - Manual (Page 25)

25
11.3 Repairs
When carrying out permitted repairs, please observe the relevant spare parts lists with the
remarks and drawings they contain.
Should there be any uncertainties regarding the repairs, please contact your authorised
LUKAS dealer or LUKAS Customer Service.
CAUTION!
As LUKAS hydraulic units are designed for extremely heavy loads, it is prohibited
to attempt any repairs other than those described in the operating instructions.
Repairs not described in the operating instructions require the approval of
LUKAS Hydraulik GmbH.
11.3.1 Frame replacement
Replace the frame if it is broken or seriously deformed. To replace the frame, loosen
the securing bolts, remove the frame and fit the new one. Tighten the fastening screws.
Please consult the appropriate spare parts lists for any torques and additional assembly
instructions.
11.3.2 Quick-disconnect couplings
The quick-disconnect couplings must be replaced in the event of:
- external damage
- the locking device not working
- hydraulic fluid continually leaking in a coupled/uncoupled state.
WARNING / DANGER / CAUTION!
Never repair couplings: they are to be replaced by original LUKAS parts.
Procedure when mounted on hoses:
1. Loosen the union nut of the hose assembly and remove the coupling.
2. Position the new coupling and tighten the union nut of the hose assemblies
with a torque of M
A
= 35 Nm.
Procedure when mounted in the connecting block:
1. Remove the coupling from the valve block.
2. Screw the new coupling into the connecting block with a torque of M
A
= 40 Nm.
CAUTION with (quick-disconnect-system).
As the case may be, make sure that reservoir port 'T' or 'T1' of the unit is always
equipped with a female quick-disconnect coupling.
On the other hand, the supply ports must be equipped with a male quick-
disconnect coupling.