7
The TOP arm (A1) is guided in its cycle by a slot.
IT IS VERY IMPORTANT
when
you open the shed with the right Treadle that this arm goes all the way to the top
before depressing the left Treadle to close the shed.
(Each Treadle must be depressed individually fully to the bottom).
Going half way may cause serious damage to the system.
Make sure the arm follows the groove in its cycle up and down, A1
A1
UP
DOWN
