Mounting The Power Head; Door Bracket Installation - Allstar Challenger 9000M Series Installation And Owner's Manual

7
position. Allow 2" of space between the tee rail and the door (at the high arc position) as shown in the
illustration on page 9. The opener will be angled as shown. This is necessary for proper operation.
NOTE: Since the opener will be secured permanently in this position, open and close the door a few times to be
sure the door does not rub on the Tee Rail and that you have allowed the proper clearances before proceeding.
STEP 4:
Mount Power Head to Ceiling: Since there is such variety in ceiling structures, all the mounting
possibilities for the Power Unit cannot be illustratlocation of, and attachment to, ceiling joists, a carpenter
should be contacted to provide assistance. A cross brace will be necessary if power head is mounted here. The
main concern is mounting the Power Unit securely to the
ceiling joists for operational strength, rigidity and safety.
Although there are a series of mounting slots provided on
the power unit, try to secure the mounting straps in the
slots closest to the front. Mounting may usually be
accomplished using standard 1-1/4" perforated steel angle
available at most hardware stores. If in doubt about is
mounted 8" or more from the ceiling.
STEP 5:
Return to the Rail/Wall Mounting
Bracket and securely tighten the bolt and nut that connect
the Rail Front Idler bracket and the Wall Mounting
Bracket. Take care not to over tighten the nut; tighten
only until the end of the bolt is (See Step 2).

Mounting The Power Head

End of Opener
STEP 6:
Align the center of opener
tracks with the center line previously
marked on the top section of the garage
door to ensure rail will be parallel with
the direction of door travel.
Use supplied hangers from the ceiling
beams to hang the opener at the power
head end (be sure to locate and mount to
the solid structural beams, as illustrated). Predrill with 3/16" drill bit and use supplied 1/4" x 1-1/2" lag screws
to ensure a rigid mount.
NOTE: Hanging brackets should be at an angle to provide rigid support. If hangers have no angle or if you use
longer hangers, cross brace the hangers to eliminate the possibility of sway during operation of the opener.
Fiberglass, aluminum or lightweight steel
garage doors will require reinforcement before
installation of the door mounting bracket
WARNING
STEP 7: Door Bracket Installation
NOTE: If the door is of light construction it may be necessary
to reinforce the center stile with steel angle or wood to prevent
damage to the door if it encounters an obstruction on closing.
Mount the door bracket using two 1/4"-20 x 2" carriage bolts
If your door comes equipped with a strut
mounted opener bracket, proceed to Step 8.
Structural
Opener
Power
Head
Contact your door manufacturer for a
reinforcement kit or instructions.
and 1/4" nuts
(supplied), on center
110051-1
line of door with the
middle hole in line
with the top rollers.
C: INSTALLING THE OPERATOR
SECTIONAL DOORS
AND ONE-PIECE
DOORS WITH TRACKS
ALLOW 2" BETWEEN TOP
OF DOOR AND RAIL
DOOR
FULLY
OPEN
104373
Beams
ONE PIECE DOORS
WITHOUT TRACKS
110050-2
Cut and bend
Hangers to fit
For finished ceilings, or if structural
beams are out of position for
mounting use a third mounting angle
(not included) making sure it is
securely mounted to beams.
Door Center Line
Top Roller
Guideline
110051-2
ALLOW 2" BETWEEN
HIGH ARC OF DOOR
AND RAIL
TOP OF
DOOR IN
HIGH ARC
POSITION
Top Roller
Guideline
Reinforce Door
Vertically and
Horizontally
Mounting
Bracket