Chamberlain WD952LD - Manual (Page 27)

27
ADJUSTMENT STEP 1
Program the Travel Limits
Travel limits regulate the points at which the
door will stop when moving up or down. Follow
the steps below to set the limits.
To program the travel limits:
1. Press and hold the black button until the yellow
indicator light starts flashing slowly then release.
2. Push and hold the black button until the door
reaches the desired UP (open) position (Figure 2).
Adjust the position of the door by using the black
and purple buttons. Black moves the door UP
(open) and purple moves the door DOWN (close).
Check to be sure the door opens high enough for
your vehicle.
NOTE: Refer to previous page for correct door
position for one-piece door.
3. Push the remote control or door control (Figure 3).
This sets the UP (open) limit and begins closing
the door. Immediately press either the black or
purple button; the door will stop.
Adjust the desired DOWN (close) limit position
using the black and purple buttons (Figure 4).
Check to be sure the door is fully closed without
applying excessive pressure on the rail (rail should
not bow upwards and the belt should not sag or
droop below the rail). Push the remote control or
door control (Figure 3). This sets the DOWN
(close) limit and begins opening the door.
Without a properly installed safety reversal system,
persons (particularly small children) could be
SERIOUSLY INJURED or KILLED by a closing garage
door.
• Incorrect adjustment of garage door travel limits will
interfere with proper operation of safety reversal
system.
• After ANY adjustments are made, the safety reversal
system MUST be tested. Door MUST reverse on
contact with 1-1/2" high (3.8 cm) object (or 2x4 laid
flat) on floor.
Purple
Button
Black
Button
Antenna
Indicator
Light
WARNING
CAUTION WARNING
WARNING
To prevent damage to vehicles, be sure fully open door
provides adequate clearance.
WARNING
CAUTION WARNING
WARNING
Figure 1
4. Open and close the door with the remote control or
door control 2 or 3 times.
If the door stops in both the desired UP (open) and
DOWN (close) positions, proceed to Adjustment
Step 2, Setting the Force, followed by Adjustment
Step 3, Test the Safety Reversal System.
BLACK PURPLE
Push and hold
until the door
is at desired UP
position
Figure 2
Figure 3
BLACK PURPLE
Push either
button to stop
door at desired
DOWN position
Figure 4
LOCK
LIGHT
or