1
S Gate closes first
Line of gates when closed
2
*
*
S Gate stops slightly before closed position
3
Mechanical lip on
M Gate engages with S Gate
With PCM, M Gate continues closing,
*
pushing the S Gate with it
4
If "Short Stop" is correctly set, PCM will cut off
when gates reach closed position, in line
Mechanical lip
M gate closes
slightly behind
S Gate (Leaf delay)
M Gate continues to close
"Short Stop"
*
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