Craftsman 139.53325SRT Garage Door Opener User Manual


 
Read the Safety instructions on page 12. They also apply to doors without tracks.
,Ciose #_e d_r and ma_'kthe
inside veRicai centerline of
your garage door. E_end the
line onto the header wall
above door
tf headr_m c{earance {s
minimal, you can instai_ the
header bracket on the ceiling.
See page 14.
header bMcket on a 2x4 (on
wall or ceiling), use lag _rews
(not suppti_) to secure_J
fasten the 2x# to structural
On.piece door without track
One-pi_e door without track
pivot hardware
, Open your door to the highest _int of trave_ as
shown Measure the distance from the top d the
door to the floor° Subtract t,he actual height d the
door. Add 8_to the remainder. (See Example).
- Close the door and draw an inte_ectJng horizontal
line on the header w_l at the dete_ined height..
if the total number of inches exceeds the height
available in your garage, use the maximum
height possible, or refer to page 14 for ceiling
ins_llatfon.
EXAMPLE
Distance from top of door
(at highest point of travel) to fk_r .................... 92"
Actua_ height of dc@r ............................................88"
Remainder ..................................................................
Add .........................................................................8
Bracket height on header wali .............................. =12"
(Measure UP from top of CLOSED door.)
Proceed to Step 2, page 14.
13