® Copyright ATH-Heinl GmbH & Co. KG, 2012, All rights reserved. / Misprints and technical changes reserved / Issue: 08/2014
20
8. Bleeding of hydraulic cycle of freewheel lift
a. Set the selector switch (18-1; 4) to freewheel lift
b. Set the adjustment- resp. Working switch (18-1; 8) to
„WORK“
c. Close the valve 1 and 2 (18-2)
d. Push the button LIFTING (18-1; 5).
e. Herewith only the main scissor of the freewheel lift will be moved.
f. Hold down the button until the max. height is reached.
g. Push the button LOWERING (18-1; 7) to lower the lift completely.
h. Repeat the step d. + f.
i. Put the adjustment- resp. working switch (18-1; 8) to
„ADJ“
j. Open the valve 2 (18-2)
k. Repeat step d. + f., if necessary refill hydraulic oil.
l. Repeat step g.
m. Repeat steps k. + l. appr. 5 times
n. Repeat step d. until the second scissors reaches the same height as the main sicssor.
o. Close valve 2 (18-2)
p. Make step b.
q. Lift and lower the freehwheel lift appr .3 times and check the synchronization. If a synchronization is not
given, repeat the previous steps again.
If the synchronization of the freewheel lift cannot be
adjusted, there is another possibility.
Lift the second scissor of the freewheel lift appr. 10
mm.
Loosen the bleeding screw as to be seen in the
adjacent picture for bleeding the cylinder.
Following retighten the bleeding screw again.
18-1
18-2
