Craftsman 139.53403 Owner's Manual page 12

installation
STEP 4
Hang Opener Chassis
THE OPENER CHASSIS MUST BE SECURELY FASTENED TO A STRUCTURAL SUPPORTOF GARAGE.
Three representative installations are shown. You rs may be different. Hanging brackets should be angled
(Fig. 1 ) or crossed (Fig. 2) to provide rigid support On finished ceilings (Fig. 3). attach a sturdy metal bracket
(not supplied) to ceiling joists before installing opener
PROCEDURE: On EACH side of opener measure the
distance from chassis to structural support
Cut both pieces of the hanging bracket to required
lengths. Flatten one end of each bracket and bend or
twist to fit fastening angles. Do not bend at bracket
holes. Drill 3/16" pilot holes in structural support.
Attach flattened ends of brackets to the support with
5/1 6"xl-7/8" lag screws
Lift opener and fasten to hanging bracket as shown
Checkto make sure Tee rail is centered over door.
REMOVE 2x4. Operate door manuaNy If door hits
the rail, raise header bracket.
Grease top and underside of rail surface on which
trolley slides. A tube of grease is supplied.
5/16"-18x7/8'" Screw
5J
5/16"-18
FIGURE 2
FIGURE 1
FIGURE 3
\
Measure
Distance
Lag Screws
5/16"xl-7/8"
Bracket
(Net Supplied) FINISHED CEILING
Lag
Screws
5/16"xl-7/8"
_ _ 5/156/; L.°ClkV_auSth er
STE P 5
Attach Emergency Release Rope & Handle
USE EMERGENCY RELEASE ONLY TO
DISENGAGE TROLLEY. DO NOT USE
ROPE AND HANDLE TO PULL 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 inch from end of rope to pre.
vent slipping.1 Thread other end of rope through hole
in release arm of outer trolley Adjust rope length so
that handle is 6 feet above the floor. Secure with an
overhand knot as above.
NOTE: If it is necessary to cut rope, heat seal cut
end with a match or lighter to prevent fraying and/
or raveling.
Overhand
Tr_o_ey Knot
Release Arm
Rope --
Overhand
Knot
_
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