Sir dmccoyks . . . .
Need for you to tell me if I am being right on that units manner of operation.
Your original switches . . . . . that are now gutted of both their shafts and internal switching contacts by extreme blunt force trauma. . . . .INITIALLY worked like this.
You turned on the end
POWER switch and then hit the appropriate
PUSHBUTTON ACTION switch such it that made initial contact long enough for the motor unit that ran that linear actuator arm (
YELLOW) will be moving on its own.
(There are limit switches and a cam that are inside of its motor end plate . . .that then keeps the motor still running, after you let up on the initial temporary switch press, that you intiated the start up action with.)
The linear drive arm internal limit switches will
STOP the system automatically at either extreme limits of its movement.
That
NEC POWER RELAY takes care of the motors
POWER aspects, so the pushbutton switches will actually only carry the meager power necessary to power the coil units of that
POWER relay . . . which identification and the specs I give you as:
http://pdf.datasheetcatalog.com/datasheet/nec/EP1F-B3L2TT.pdf
Each pushbutton switch is a SINGLE POLE DOUBLE THROW . . .SPDT . . . momentary contact unit and you want to check the possible 180 degree rotation possibility / ambiguity such that its installed contacts that are normally
OPEN are being connected across the designated two
RED or
BLUE positions. My marked
YELLOW No Connection . . .contacts are not even being used.
That way, when you press a switch, either the
RED or
BLUE contacts go into a shorted condition, as long as you have the button pushed down, then it pops up and disconnects as you release pressure on it, of course the motor is auto running by itself by then..
I believe that this is being your unit and its linear activator drive that does the lifting.
Photo Referencing of boards two sides:
Photo Referencing of installed SYSTEM:
73's de Edd
.
