Yale HOISTS SHAW-BOX YKA Operation & Service Manual page 65

4 Installation
(1) "PLS" switching unit
(2) Microswitch
(3) Screw
(4) C-profile
(5) Screw
a Dimension 1.18 in – 1.38 in
(1) "PLS" switching unit
(6) Switch rod
(7) Bottom hook block
07.2020
Adjusting hook operated hoist limit switch with switch rod (KE-S..)
Adjust the geared limit switch, see Adjusting the geared limit switch section.
Press the UP button in the control pendant carefully.
Observe the hoisting movement until the operational hoist limit switch switches off in
the top hook position (B).
A pre-mounted "PLS" switching unit (1) is mounted above switch position S3.
Measure the distance between the switch rod (6) and the bottom hook block (7).
Dimension "a" must be approx. 1.18 in – 1.38 in.
Actuate the override button "S260" on the control box and the UP button at the same
time until the bottom hook block stops.
– The switch-off position must be set by the dimension "x1" (0.39 in) before the
emergency stop S1.
In case of deviations, correct the position of the "PLS" switching unit (1).
➢ Loosen the screws (5) on the "PLS" switching unit (1).
➢ Move the "PLS" switching unit (1).
➢ Tighten the screws (5) on the "PLS" switching unit (1) to the prescribed tightening
torque, see the Tightening torques for screws chapter.
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