Craftsman 139.53626SR - I/2HP Garage Door Opener User Manual


 
Installation
STEP 4 Hang Opener Chassis
THE OPENER CHASSIS MUST BE SECURELY FASTENED TO A STRUCTURAL SUPPORT OF GARAGE.
Three representative Installations are shown. Yours may be different. Hanging brackets should be angled (Fig.l)
or crossed (Fig.2) to provide rigid support, On finished ceUings (Fig.3), attach a sturdy metal bracket (not supplied) to
ceiling joists before installing opener.
PROCEDURE: On EACH side of the opener measure the
distance from chassis to the structural supports.
Cut beth pieces ofthe hanging bracket to required lengths,
Ratten one end of each bracket and bend or twist to fit
the fastening angles. Do not bend at the bracket hole=.
Drill 3/16" pilot holes in the structural supports. Attach the
flattened ends of brackets to supports with 5/16" xl-7/8"
lag screws.
Lift opener and fasten to hanging bracket as shown. Check
to make sure Tee rail Is centered over door. REMOVE
2x4. Operate door manually. If door hita the rail, raise
header bracket.
5/16"-18x7/8" Screw
5/16"LockWasher
5/16"-18Nut_
FIGURE 2
GREASE THE TOP AND THE UNDERSIDE OF RAIL
SURFACE ON WHICH TROLLEY SLIDES. A TUBE OF
GREASE IS SUPPLIED.
FIGU RE 1
Screws
5/16"xl -7/8"
FIGURE 3
FINISHED
CEILING
Lag Screws
5/16"xl-7/8"
- 5/16--18x7/8" Screw
5/16"Lock Washer
5/16"-18 Nut
STEP 5 Attach Emergency Release Rope & Handle
USE EMERGENCY RELEASE ROPE ONLY TO
DISENGAGE TROLLEY. DO NOT USE ROPE
AND HANDLE TO PULL THE DOOR OPEN OR
CLOSED.
PROCEDURE: Thread one end of rope through hole in top
of red handle so 'NOTICE' reads right side up as shown.
Secure with an overhand knot.
NOTE: Knot should be at least 1" from end of the rope
to prevent slipping.
Thread other end of rope through hole in release arm of
trolley. Adjust rope length so that handle is 6 feet above
the floor. Secure with an overhand knot.
NOTE: If it is necessary to cut rope, heat seal the cut
end with a match or lighter to prevent fraying and/or
raveling.
Trolley
Rope
Overhand
Knot
Overhand
Knot
Tt_ley
Release Arm
Emergency
Release Handle
12