Lukas Hydraulic cylinder - Manual (Page 25)

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9. You can now remove the seals from the guiding ring using a suitable tool.
CAUTION!
Do not damage the guiding ring when removing the seals!
10. Carefully pull the piston out of the cylinder body!
On single acting cylinders with release spring, you must first separate the release spring
from the cylinder body. This normally carried out by removing the fixing screw and the
sealing ring. On single acting cylinders, the release spring is equipped with such a fixing
screw on the bottom of the cylinder body and on the cylinder head. You should remove
the screw on the cylinder body bottom first.
CAUTION!
Make sure that you do not tilt the piston when pulling it out! That could cause
damage to the piston and the cylinder body!
11. Now you can remove the seals from the piston using a suitable tool.
12. The assembly is carried out in reverse order.
13. The cylinder must then be deaerated!
NOTE:
During assembly, brush the seals with LUKAS special grease. This simplifies
the assembly of the seals and increases the operating life!