Position The Opener - Chamberlain WhisperDrive WD962KD Owner's Manual

UHSTALLATaOH STEP 4
Position the Opener
Follow instructions which apply to your door type as
illustrate&
SECTIONAL DOOR OR ONE-PIECE DOOR
WITH TRACK
A 2x4 laid flat is convenient for setting an ideal
door4o-rail distance,
- Remove foam packaging,
° Raise the opener onto a stepladder. You will need help
at this point if the ladder is not tail enough,
• Open the door all the way and place a 2x4 laid fiat on
the top section beneath the rail.,
o If the top section or panet hits the trolley when you raise
the door, pull down on the trolley release arm
to disconnect inner and outer sections Slide the outer
trolley toward the motor uniL The trolley can remain
disconnected until Installation Step 12 is completed.
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Release Arm --_ l
ENGAGED RELEASED \__j
To preventdamageto garagedoor, rest garage door opener 1
ra on 2x4 placedon top section of door,, I
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oor _oe4ml_c_r; Centdgmt Oo udne_enrghi negh '
ONE-PIECE DOOR WITHOUT TRACK
A 2x4 on its side is convenient for setting an ideal
door4o-raii distance.,
• Remove foam packaging.,
- Raise the opener onto a stepladder. You will need help
at this point if the ladder is not tall enough.
o Open the door all the way and place a 2x4 on its side
on the top section of the door beneath the rail
• The top of the door should be level with the top of the
motor unit,, Do not position the opener more than
4" (10 cm) above this poinL
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i
BrackNeader
2x4 is used to determine
the correct mounting height
from ceiling
15