POSITION THE OPENER –
Note:
A 25mm (1") board (1) is convenient for setting an ideal door-to-T-rail
distance (unless headroom is not sufficient).
Raise the opener onto a stepladder. Open garage door. Place a 25mm (1")
board
(1)
laid flat on the top section of door near the centerline as shown.
Rest the T-rail on the board.
If the raised door hits the trolley, pull down on the trolley release arm to dis-
connect the inner and outer trolley sections. The trolley can remain discon-
nected until connecting door arm to trolley is completed.
10
1
HANG THE OPENER –
The opener must be securely fastened to a structural support of the garage.
Three representative installations are shown. Yours may be
different.
Hanging brackets
(1)
should be angled
(Figure A)
to
provide rigid support. On finished ceilings,
(Figure B)
attach a
sturdy metal bracket (not supplied)
(4)
to a structural support
before installing the opener. For concrete ceiling mount,
(Figure
C)
, use concrete anchors
(5)
provided.
On
each
side of opener measure the distance from the opener to
the structural support (or ceiling).
Cut both pieces of the hanging bracket to required lengths.
Flatten one end of each bracket and bend or twist to fit the fas-
tening angles.
Do not bend at the bracket holes.
Drill 4,5mm
(3/16") pilot holes in the structural supports (or ceiling). Attach
flattened ends of brackets to supports with wood screws
(2)
.
Lift opener and fasten to hanging brackets with screw, lock wash-
er and nut
(3)
. Check to make sure T-rail is centered over the
door. REMOVE 25mm (1") board. Operate door manually. If door
hits the rail, raise header bracket.
Grease the top and underside of rail surface on which the
trolley slides. A tube of grease is supplied.
12
A
C
3
1
2
2
5
5
2
3
1
2
3
1
B
2
4
1
3
3
2
6
6
6
INSTALL VIBRATION ISOLATORS -
It’s use will help to eliminate vibration normally transmitted
thru the floor joists.
Nut
Washer
Vibration Isolator
11
8
Summary of Contents for Merlin MT5580
Page 1: ......
