Lukas Hydraulic cylinder - Manual (Page 20)

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8. Dismantling the equipment / deactivation following
operation
WARNING / CAUTION!
Before dismantling the used equipment, you must ensure that the load being
moved is in a stable, non-slip location!
8.1 Hydraulic cylinder
After the work is completed the hydraulic cylinders should be retracted to leave just a few
mm *) protrusion (up to the end position on single acting cylinders). This relieves the hydraulic
and mechanical strain on the device.
NOTE:
When hydraulic cylinders are in storage, fluctuations in ambient temperature can
cause the pistons to move slightly. This phenomenon is due to the difference in
the expansion of the hydraulic fluid on the piston side and the rod side.
*) 1 mm = 0.04 in.
8.2 Hydraulic unit
8.3 Hoses
Upon completion of work, the unit must be deactivated.
Uncoupling is carried out in the reverse order, as described in Chapter “Connecting the
Equipment”.
Ensure that you replace the dust protection caps on the Quick-disconnect coupling halves.