Yale HOISTS SHAW-BOX YKA Operation & Service Manual page 115

7 Inspection and maintenance
07.2020
With deviations, adjust the geared limit switch again (see section 7.14 Adjusting the
switching points).
Actuate the override button (S261) in the control box and the DOWN-button at the
same time to exit the top switching area.
Actuate the DOWN-button in the control pendant with caution.
Observe the hoisting movement, until the operational hoist limit switch switches off in
the lower hook position (B)
Actuate the override button (S262) in the control box and the DOWN-button at the
same time, until the emergency hoist limit switch switches off (A).
– If the wire rope hoist does not travel further, the emergency hoist limit switch has
already switched off during step 9 and the operational hoist limit switch is not
working.
– Do not undershoot the minimum distance "f", of f ≥ 0.79 in between the rope
guide ring (1) and the clamping claws (2) for the rope anchorage.
– With emergency hoist limit switching, the load hook must not be lowered onto the
ground.
Measure the distance from the rope guide ring to the clamping claws.
– The minimum distance "f" between the rope guide ring (1) and the clamping claws
(2) for the rope anchorage f ≥ 0.79 in.
With deviations, adjust the geared limit switch again (see section 7.14.2 Adjusting
the switching points).
Actuate the override button (S261) in the control box and the UP-button at the same
time to exit the hoist limit switch area.
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