Craftsman 1/2HP Garage Door Opener 139.53515SR - Manual (Page 10)

Installation
STEP 1
Position and Instali Header Bracket
Installation procedures are determined by garage door types. Follow only those
instructions which refer to your door.
RIGIDLY FASTENED TO THE HEADER WALL. REINFORCE THE WALL
Ivcii» COMPLY MAY RESULT IN IMPROPER OPERATION OF SAFETY
HCvCHdc aYbTEM (SEE PAGE 18).
1. With the door clo^, locate and mark the vertical
centerline of garage door. Extend line onto header wall
above the door
2. Locate height for header bracket by opening door to
highest point of travel as shown. Draw an intersecting
horizontal line on header wall 2' above high point. This
height provides travel clearance for top edge of door.
NOTE: When the headroom is not sufficient for 2
'
clearance, the bottom edge of bracket may be placed
parallel to the high point of travel.
Door Clearance Brackets are designed for tow
headroom installations (page 4). They replace the
top brackets and rollers on the garage door, thereby
lowering the high point of door travel. Installation
instructions are contained in the accessory carton.
INSTALLATION
SECTIONAL DOOR AND
1-PIECE DOOR WITH TRACK
SECTIONAL DOOR
CURVED TRACK
<< Hiflhe
Headef
Bracket
\ Lao Screws
^®Za^g^S/16-x18x1-7/8-
Ceiling
Header
'Bracket Track
Highest Point
ot Travel
ONE-PIECE DOOR
HORIZONTAL TRACK
JAMB HARDWARE
Header
Bracket
/ Highest Point
9 of Travel
' Door
Highest
Point of
Travel
3. Position bracket as shown (bottom edge of bracket
on horizontal line and centered on the vertical tine).
Mark either top and bottom or left and right bracket
holes. Drill 3/16* pilot holes and fasten bracket.
INSTALLATION
1-PIECE DOOR WITHOUT TRACK
ONE-PIECE DOOR
NO TRACK
PIVCT HARDWARE
ONE-PIECE DOOR
NO TRACK
JAMB HARDWARE
Header
Bracket
\ Highest Point
Travel
1. Find the vertical centerline as described in 1. above.
2. Locate height for header bracket by opening door to
highest point of travel as shown. Measure the distance
from top of door to floor. Subtract actual height of door.
Add 8* to the remainder. Refer to example below.
NOTE: If total number of inches exceeds the height
available in your garage, use the maximum height
possible. On finished ceilings, do not position the
bracket closer than 1/2' from ceiling.
3. Measuring from top of door, draw an intersecting
horizonte line on the header wall at determined height.
Position the bottom edge of header bracket on the
horizontal line, centering bracket on vertical line. Mark
either top and bottom or left and right holes. Drill 3/16*
pilot holes and fasten the bracket with 5/16*x1-7/8* lag
screws as shown above.
EXAMPLE
Distance from top of door (at
highest point of travel) to floor................................... 92*
Actual height of door..................................................-88*
Remainder..................................................................................... 4'
Md .......................................................................... 4- 8*
Bracket height on header wall................................. =12*
(Measure UP from top of door
in closed position.)
10