Schindler 3100/3300/6300 J 43402603 / 01 56/269
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TSD21 Device
(Temporary Safety
Device) Hardware
Description
TSD21 device comprises of two metal bolts (1) located under the car on the left and right
sides, and two stoppers (2) fixed to the car rails in a defined position (3) in the
headroom, and/or two stoppers fixed on the car rails in a defined position in the pit. Each
stopper includes a buffer (4) to soften the pin impact. A TSD21 lever (5) located on the
car roof is used to move the pin out of the car footprint (6).
[39340; 26.03.2015]
Telescopic Toe
Guard for Short Pit
A telescopic toe guard is used, extended under normal operation, retracted when the car
is reaching the lowest position, and fulfilling the following condition:
Normal operation is neutralized by a safety switch if the toe guard is not in the extended
position. Due to the minimum pit depth of 800 mm, this contact (KSC) is only operated in
case the elevator overruns the lowest stop and therefore is connected in the part of the
safety chain which is neutralized in emergency electrical operation (recall).
Safety System In addition, a safety system is connected to the controller.
Any landing door or other opening point giving access to an area where the clearances
are reduced is fitted with a safety contact (KNET) monitoring the activation of the
A Normal mode
1 Metal bolt
2 Stopper
3 Option in case of low pit or low
pit and head only
B Inspection mode
4Buffer
5 TSD21 lever
6 Bolts expanded (generating
safety space in end positions)
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