Vutec LECTRIC IV - Installation Instructions - Manual (Page 9)

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04/21/08 Rev D
LIIe-INST_D
Send the screen down to the lower limit and it should stop automatically. Return the control switch to center off
position.
Push the White button in.
Send the screen up or down to the new lower lim it and stop. Push the White button to pop out. The lower lim it
has been set.
Send the screen up few inches and stop. Send it back down and expect it to stop at the desired lower limit.
Repeat the steps as necessary until the desired lower limit is satisfied.
HEX SOCKET LIMIT SWITCH
Key features of the hex socket (Figures 2a and 6) limit switch:
⇒ Each full turn (360 degrees) of the hex socket cause the screen to travel approximately 3/4 inch.
⇒ 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 lim it and it should stop
automatically. Leave the control switch on.
Turn the White hex socket one full turn
clockwise and
expect the screen to move down 3/4 inch. If the screen did
not move; turn the hex socket two full turns in the opposite
direction (counter-clockwise) and expect the screen to
move down 3/4 inch.
Determine counter-clockwise or clockwise turn. Continue
to turn the White hex socket in the direction that would
move the screen down. 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.
Turn the White hex socket one full turn counter-clockwise and expect the screen to rem ain in position. If the
screen did move down 3/4 inch; clockwise turn will be used for the adjustment.
Determine clockwise or counter-clockwise turn. Determine the number of turns required to stop the screen
above the desired lower limit.
Turn the White hex socket in the direction that has b een determined to m ake 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.
If the screen stop is still below the desired lower lim it; repeat the steps above 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 6