Section 9 -
Adjustments
CAUTION:
Be sure all switches are in "off" position before adjusting limit
switches Always be prepared to shut lift off manually when new adjustment
is being tested.
Limit switches for the AeroLift are preset at the factory. The "Up"
(closed)
limit
switch is set for fully closed. The "down"
(show)
limit switch is set for fully lowered.
Once unit is in place, the "down" limit switch may need to be changed to stop
the AeroLift closer to the ceiling
(that is, to raise the "down" position)
. Limit switches
are located on the end of roller, and are accessible by removing the cover of the
junction box at the left end of the unit. To adjust the limit switches, use a
5/32
"
(4mm)
screwdriver/hex key.
CAUTION:
It is not uncommon to overheat the motor during initial
installation when setting limits. The motor is thermally protected and will
stop working until it has cooled to a safe temperature before it will start
operating again. DO NOT physically pull the unit down when this occurs.
Adjusting "Down"
(SHOW position)
—
"Down" position may be adjusted by
turning the DOWN limit switch adjustment socket. Turning the socket clockwise
will stop the AeroLift closer to the ceiling. Turning it counter-clockwise will cause
the lift to stop at a lower point.
Adjusting "Up"
(CLOSED position)
—
Because the "up"
("closed")
position
is preset at the factory, Draper does not recommend changing this position
using the limit switch. The "up" position of the closure may be changed by
changing the length of threaded rod. If necessary, however, "up" position may be
adjusted by turning the "up" limit switch adjustment socket. Turning the socket
counterclockwise creates a higher, or more fully closed position. Turning it
clockwise creates a lower "up"
(closed)
position.
CAUTION:
Make sure limit switch is set so that AeroLift motor is NOT still
running after lift is closed. If it continues to cycle once lift is closed, a failure
may occur, making unit descend rapidly and causing damage and/or injury.
Please Note:
If load is off-center of pan, it may be necessary to adjust pitch of
fabric rollers. One set screw is provided on each end of both fabric rollers
(see
drawing)
. Use these to adjust roller pitch to keep entire fabric panel taut, so load
is evenly distributed. Use
1/8
"
(3mm)
hex key to adjust.
JUNCTION BOX
UP LIMIT
DOWN LIMIT
Fabric Roller Adjustment Set Screw
"
(3mm)
Min. clearance
CAUTION:
Make
sure there are
no obstructions
to operation.
page 7 of 8
AeroLift 100/150 220V
