6. Authorized lowering
23
Rev.D 2013_03_en
5.
Release the air cylinders on all 4 lift columns
with the release pins. Then turn the brass
screw again to the left. The lift drops back into
the next lock position.
21
6
Turn the brass screw to the left to lower the
main lift to the next lock position.
22
7
Repeat the process until the main lift has been
lowered completely to the floor.
8
Turn the brass screw to the right as far as it will
go to close the pressure control valve,
otherwise the lifting function will not work.
9
Screw on the plastic cap.
10 Refit the emergency manual valve. Make sure
that the metal cap is screwed on completely,
otherwise the lifting function will not work.