Use and Care Manual
25 - English
Fig. 33
Power 
Head
MOUNTING THE POWER HEAD TO THE 
CEILING 
See Figures 33 - 38.
WARNING:
Mount garage door opener to sound structural support 
on ceiling. NEVER mount the garage door to drywall or 
false ceiling grids. ALWAYS use concrete anchors when 
installing brackets into concrete, brick, or other masonry. 
Failure to properly mount the power head can cause it 
to fall and could result in death, serious personal injury, 
or property damage.
Locate the following items:
  Mounting Strap (2)
  Bolt (7/16 in. x 3/4 in.) [6]
  Washer (7/16 in.) [6]
  Nut (7/16 in.) [6]
Lower the garage door completely.
Measure the space between the header bracket and the 
ceiling.
  NOTE: For unfinished ceilings, measure the space 
between the header bracket and the nearest joists on 
either side.
Carefully lift the power head and place it on top of a ladder.
Move the power head until it is aligned with the header 
bracket and the rail assembly is over the center line of 
the door.
Pull the trolley release lever down and slide outer trolley 
completely toward the power head.
NOTE: The proper configuration and placement of brackets 
and mounting straps will vary based on the design and 
construction of your garage ceiling. Figures 34 - 38 are meant 
to serve as examples but your setup may vary. 
Header 
Bracket
Ceiling
Measured 
Distance
Outer 
Trolley
INSTALLATION










