Ma in t e nan c e | Refe r e n c i ng t h e e l e ctr o n ic h o is t l i m i t swi t c h
60
ONLY FOR GM8
TURN SECOND FALL STRAIGHT
Chain anchor point Second fall
Check the chain anchor point: The second
fall should extend straight to the bottom
block and not be twisted.
If necessary:
Turn the chain anchor point.
ONLY WITH AN ELECTRONIC
HOIST LIMIT SWITCH
REFERENCING THE ELECTRONIC
HOIST LIMIT SWITCH
The electronic hoist limit switch needs to be
referenced again. See “Referencing the
electronic hoist limit switch” page 60.
Check the switching points (upper and
lower) and correct if necessary.
─ The saved switching points are retained
after referencing and therefore do not need
to be reset.
─ If the switching points are moved equally, all
the switching points can be corrected at the
same time by changing the reference point
accordingly.
REFERENCING THE ELECTRONIC
HOIST LIMIT SWITCH
ONLY WITH AN ELECTRONIC
HOIST LIMIT SWITCH
Referencing the hoist limit switch is a basic
operation and has nothing to do with setting the
upper and lower switching points, but is the
reference point for all switching points.
The reference point is set at the factory. It must be
reset if the chain and chain sprocket are replaced.
The saved switching points do not need to be reset
after referencing.
The saved switching points are derived from the
reference point that is set in this section.
Consequently, the reference point should always
be saved in the same place (bottom block or hook
assembly just below the housing).
Since all the switching points are derived from the
reference point, all the switching points can be
corrected at the same time by changing the
reference point accordingly.