Craftsman 139.53920D owner manual Sectional Door Installations

Planning

Identify the type and height of your garage door Survey your garage area to see if any of the conditions below apply to your installation, Additional materials may be required,,You may find it helpful to refer back to this page and the accompanying illustrations as you proceed with the installation of your opener

Depending on your requirements, there are several

installation steps which may calf for materials or hardware not included in the carton,

•Installation Step I - Look at the wall or ceiling above the garage door, The header bracket must be securely fastened to structural supports.

-Installation Step 5 - Do you have a finished ceiling

in your garage? If so, a support bracket and additional fastening hardware may be required.,

-Installation Step 10 - Depending upon garage construction, extension brackets or wood blocks may be needed to install sensors.

. Installation Step 10-Alternate floor mounting of the safety reversing sensor wilt require hardware not provided.

Do you have an access door in addition to the garage door? If not, Model 53702 Emergency Key Release is required See Accessories page.

Look at the garage door where it meets the floor, Any gap between the floor and the botlom of the door must net exceed 1/4" (6 mm) Otherwise, the safety reversal system may not work properly, See Adjustment Step 3 Floor or door should be repaired_

SECTIONAL DOOR INSTALLATIONS

•Do you have a steel, aluminum, fiberglass or glass panel door? tf so, horizontal and vertical reinforcement is required (Installation Step 11).

o The opener should be installed above the center of the door If there is a torsion spring or center

bearing plate in the way of the header bracket, it may be installed within 4 feet (1,22 m) to the left or fight of the door center See Installation Steps 1 and 11,

•If your door is more than 7 feet (2,13 m) high, see rai] extension kits listed on Accessories page

SECTIONAL DOOR INSTALLATION

Horizontal and vedical reinforcement

is needed !of lightweight garage doors

(_iberglass, steel, aluminum, door with glass panets, elc ) See page 23 for details

_Centertine

Gap between t=oor

and bottom of door must not exceed 1/4",

FINISHED	CEILING
		Suppoll	brackel &
		fastening	hardware
		is required,
		See page 16
Slack in chain tension		Rail
is nolTaal when
garage door is closed
OR	Spdng			Motor	unit
Wall -
mounte_
Door			Header	CLOSED	POSIT_ON
Cenirol
			Brackel
			Trolley
			Slop Boll	Trolley

o!

I

Cha{n

Emergency

Release

Rope & Handle

Safety

Reversing

SetlBOt"

Arm

Dam

Bracket