B&D N1134 - Manual (Page 13)

13
One Piece Door Without Track
1/30/92 - 4/7/92
Header
Wall
Vertical
Centreline
Vertical
Centreline
of Garage
Door
40mm
Reinforcement
Board
Unfinished
Ceiling
OPTIONAL
CEILING MOUNT
FOR
HEADER BRACKET
Structural
Supports
40mm
Reinforcement
Board
ONE-PIECE DOOR WITHOUT TRACK
1. Close the door and mark the inside vertical
centreline of your garage door. Extend the line
onto the header wall above door, as shown.
If headroom clearance is minimal, you can install
the header bracket on the ceiling. See page 14.
If you need to install the header bracket on a
40mm reinforcement board (on wall or ceiling), use
lag screws (not provided) to securely fasten the
40mm reinforcement board to structural supports
as shown. If installing into masonry, use concrete
anchors (not provided).
2. Open your door to the highest point of travel as
shown. Measure the distance from the top of the
door to the floor. Subtract the actual height of the
door. Add 200mm to the remainder.
(See Example).
3. Close the door and draw an intersecting horizontal
line on the header wall at the determined height.
If the total number of millimeters exceeds the
height available in your garage, use the
maximum height possible, or refer to page 14
for ceiling installation.
Door
Highest Point
of Travel
Header Wall
Pivot
Distance
Header Wall
Highest Point
of Travel
Door
Floor Floor
Distance
Jamb
Hardware
The Chamberlain Group, Inc.
Position Header Bracket
Doors Without Track
1/30/92 - 4/7/92
One-piece door without track:
pivot hardware
Door
Highest Point
of Travel
Header Wall
Pivot
Distance
Header Wall
Highest Point
of Travel
Door
Floor
Distance
Jamb
Hardware
The Chamberlain Group, Inc.
Position Header Bracket
Doors Without Track
1/30/92 - 4/7/92
One-piece door without track:
jamb hardware
EXAMPLE
Distance from top of door
(at highest point of travel) to floor ................ 2300mm
Actual height of door .................................... -2100mm
Remainder.................................................... 200mm
Add............................................................... +200mm
Bracket height on header wall ..................... =400mm
(Measure UP from top of CLOSED door.)
Proceed to Step 2, page 14.
114A2845