5. Attach boom at header bracket (Fig. 1-25).
• Place threaded end of boom strap through hole
on header bracket.
• Finger tighten nut [11] on threads.
6. Find power head position.
• Raise power head and temporarily support
above door. (Use step ladder, etc.)
• Open door until the top edge reaches the
highest point of travel.
• Center boom above door.
FOR TRACK GUIDED DOORS
– Raise power head until boom is level or slightly
below (Fig. 1-26).
• Temporarily support power head.
FOR TRACKLESS DOORS
– Raise power head until boom is 1 to 1-1/2
inches above door (Fig. 1-27).
• Temporarily support power head.
26
11
7. Mount power head (Fig. 1-29 next page).
8. Close door.
9. Tighten boom strap nut [11] at header bracket
(Fig. 1-28).
10. Install door brace if needed (See caution on
next page).
M
ounting brackets must be fastened to garage
framing. Do Not fasten to drywall, particle board,
plaster or other such materials.
CAUTION
Track
Sectional
HIGHEST POINT OF
TRAVEL
Trackless Doors
1"-1 1/2"
1"-1 1/2"
HIGHEST POINT OF TRAVEL
Fig. 1-27 Find power head position
Fig. 1-28
FOR HELP-1.800.929.3667 OR OVERHEADDOOR.COM
5/16"-18 Flange Nut
[11]
Fig. 1-25 finger tight
Track
One-piece
HIGHEST POINT OF
TRAVEL
Track guided doors
Fig.1-26 Find power head
position
14
