Screw removal:
N
c
ote:
As you disassemble the screw, look carefully at how the various nuts retaining
ollars and washers are assembled onto it. You will have to reassemble these parts
platform walls. If it will help, also remove the platform.
t
a
onto the new shaft.
Never allow the screw to hang unsupported this will damage it irreparably.
Operate the lift so that the platform is at the bottom of the mast.
For units that cannot be operated, use the lowering device to bring the platform to the
bottom. Remove the
Remove the mast covers and support the carriage so that you can access the Drive nu
assembly easily.
Remove the mast cap look closely at the collar at the very top of the screw. There is
screw passing through the collar above the upper nut. This must be removed. Back the
Nut below down the screw before tryin
Two setscrews fix
the bearing collar
remove the screw
from the bearing.
hen installing the
w shaft, tension
w shaft
screws
to the shaft. They
have to be
loosened to
W
ne
the ne
slightly before
tightening these
g to remove the collar. That nut is tight against
the collar.
With the collar removed, take the nut off the top end of the screw.
Disassemble the top bearing assembly. There are screw(s) fixing it to the screw.
ITEM #05751 Revision B
Garaventa Lift, April 2008
13
