About Travel Limits
Limit Adjustments regulate the position at which the door will
stop when opening and closing.
BEFORE making any adjustments, operate the door by using
the Wall Panel, Push Button or Transmitter. Run the Opener
through a complete cycle.
If the door opens and closes completely without unintended
reversing upon closing — NO adjustment is necessary.
If the door does not open or close at desired positions, proceed
with the instructions below to adjust the travel limits.
Adjusting Travel Limits
Open and Close Limits can be increased (+) or decreased (-) by
turning the corresponding screws on the Opener. Use a “flat
head” screwdriver
to
make adjustments. One full turn of the
screw is about 2” (5cm) of actual travel.
NOTE:
The Opener motor includes an automatic thermal
protection system which will shut down the motor in an overheat
situation. The thermal protector will reset itself once the motor
cools down. Opening and closing the Opener multiple times (in
a short period of time) may cause the motor to overheat and
shut down. If this happens, wait about 15 minutes for the motor
to cool and retry operation.
Setting OPEN (UP) Travel Limit
1.
CLOSE the garage door by using either the Transmitter,
Wall Panel or Push Button.
2.
Adjust the OPEN Limit Screw.
3.
OPEN garage door and check for proper adjustment.
4.
Repeat steps 1-3 until the door opens to the desired
position. When the door is in the open position, make sure
there is enough clearance for your vehicle(s), and there is
a minimum 2“ (5cm) gap between Trolley and Stop Bolt.
5.
Perform
Safety Reverse Test
on page 18.
If the door does not open past 5 feet (1.5m), follow
Force
Adjustment
on page 17 to adjust the Open Force.
Setting CLOSE (DOWN) Travel Limit
1.
OPEN the garage door by using either the Transmitter,
Wall Panel or Push Button.
2.
Adjust the CLOSE Limit Screw.
3.
CLOSE the garage door and check for proper adjustment.
4.
Repeat steps 1-3 until door closes to the desired position.
5.
Perform
Safety Reverse Test
on page 18.
Travel Limit Adjustment
!
WARNING
To prevent SERIOUS INJURY or DEATH from improper Force Adjustment:
- Improper adjustment of travel limits will cause operation of safety reversal mechanism.
- If Travel limit adjustment is made, Force Adjustment may also needed.
- After ANY adjustments, the Safety Reverse Test MUST be performed to ensure the door reverses on
contact with a 1-1/2” thick object (2x4 laid flat).
If
the
door
reverses
unintentionally
during closing, check below symptoms:
1.
The Photo Eye System may be improperly
connected, misaligned or obstructed The
courtesy light will flash continuously for 30
seconds. Refer to
Troubleshooting
on P.22.
2.
Binding door — Disconnect the door from the
Opener by using the Emergency Release
Handle. Open and close the door manually
and check the following steps.
2.1 If the door is balanced, refer to “Force
Adjustment” to adjust Close force.
2.2 If the door is unbalanced, binding or
jammed, call a trained service person to
adjust the door.
Adjusting Open (Up) Travel Limit
Adjusting Close (Down) Travel Limit
Stop Bolt
Trolley
Minimum 2” (5cm) clearance
Open
+
-
Close
-
+
16
Connecting Photo Eye Safety System
About the Photo Eye Safety System
The Photo Eye Safety System provides protection against
entrapment while the door is closing. When properly connected
and aligned, the emitter Photo Eye emits an invisible infrared
light beam while the Sensor Photo Eye monitors that beam.
If the beam is obstructed during door-closing, the entrapment
protection will be triggered and the door will stop and reverse to
the open position. The courtesy light will flash for 30 seconds
indicating an obstruction.
Installing The Photo Eye Safety System
Wall-mounting
1.
Place the Photo Eyes facing each other on each side of
the garage door. Position the sensors so they are no
higher than 6” (15cm) above the floor, as shown in Fig.1.
2.
Drill 3/16” holes using the mounting holes on the Bracket
as a template. Secure with #12 x 1” Lag Screws
(provided).
3.
If necessary use the Optional Wall-mount Position (Fig.1)
to better fit your door-track and improve obstacle
avoidance. To adjust the position, loosen the wing nut,
disassemble the Bracket and move the Photo Eye to the
lower position on the holder.
4.
If necessary, align the Photo Eyes by loosening the wing
nut . (This step may be further required in
Aligning the
Photo Eye Safety System
on page 15.)
Alternative Floor-mounting
1.
Place the Photo Eyes facing each other on each side of
the garage door, as shown in Fig.2.
2.
If attaching to concrete, secure the photo eyes using
concrete anchors and bolts (not provided).
3.
If necessary, align the Photo Eyes by loosening the wing
nut. (This step may be further required in
Aligning the
Photo Eye Safety System
on page 15.)
To Connect Photo Eye Safety System
1.
Connect a pair of wires from either one of the Photo Eyes
to a pair of “PHOTO EYE” terminals on the rear of the
Opener as shown in Fig. 3. Refer to
Wiring Instructions
on page 12 for proper connections.
2.
Repeat above step to connect the other Photo Eye.
3.
Refer to
Wiring Instructions
on page 12 to ensure wires
are connected properly.
!
WARNING
To prevent SERIOUS INJURY or DEATH from electrocution:
- Power MUST NOT be connected BEFORE Photo Eye Safety system is connected and aligned.
- The Opener will not operate until the Photo Eye Safety System is properly connected and aligned.
- Install the Photo Eyes NO higher than 6” (15cm) above the floor.
No part of garage door or other objects should obstruct the Photo Eye Safety System during door-closing.
#12 x 1”
Lag Screw
Loosen
Inside
Garage
Do
o
r T
ra
c
k
Do
o
r T
ra
c
k
Inside
Garage
6” max. above floor
Alignment
Alignment
Fig. 1 (Wall Mount)
Fig. 2 (Floor Mount)
Fig. 3
6” max.
Optional
wall mount
position
Inside
Garage
From one of
the Photo Eye
From the
other one
13
