LECTRIC2CMDF-INST.doc
01/25/2018
5
FOR UNITS WITH 4 1/2” ROLLER OR 9 1/2”SQ PROFILE
UPPER LIMIT ADJUSTMENT
The upper limit for the screen is when the bottom weight bar stop just inside the housing. Do not change
the screen upper limit unless absolutely necessary.
LOWER LIMIT ADJUSTMENT
WARNING:
UNLESS
OTHERWISE
SPECIFIED
AND
ORDERED,
STANDARD
LEADER
DROP
IS
12
INCHES
MAXIMUM.
EXCEEDING
THE
MAXIMUM
MAY
CAUSE
THE
SCREEN
TO
FALL
OFF
THE
ROLLER
AND
VOID
THE
WARRANTY.
HEX SOCKET LIMIT SWITCH
Key features of the hex socket (Figure 6) limit switch:
⇒
Each full turn (360 degrees) of the hex socket cause the screen to travel approximately 3/4 inch.
⇒
Follow the label affixed to the electrical cover plate for turning of the hex sockets.
⇒
As the hex socket is turning, the screen will move only in the direction of increasing travel.
Hint: Going down direction (lower limit) will see the screen move as more down being adjusted
but not the opposite.
MORE SCREEN DROP
Send the screen down to the lower limit and it should stop automatically. Leave the control switch on.
Turn the White hex socket in the + direction (see label on electrical cover plate) to make the screen come
down more. Stop turning when the screen reaches the desired lower limit.
LESS SCREEN DROP
Send the screen down to the lower limit and it should stop automatically. Leave the control switch on.
Determine the number of turns required to stop the screen above the desired lower limit.
Turn the White hex socket in the - direction the number of turns that has been determined to make it stop
above the desired lower limit.
Send the screen up half way and stop. Send it down and expect it to stop above the desired lower limit.
Repeat until the screen has stopped above the desired lower limit.
When the screen stops above the desired lower limit; proceed to
MORE SCREEN DROP
part to lower the
screen to the desired lower limit.
Figure 3
Limit Switch Sockets
