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Chamberlain ML750 - Connect Electric Power

Chamberlain ML750
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A. ONE-PIECE DOOR INSTALLATION:
Fasten the straight (1) and curved (2) door arm sections
together to the longest possible length (with a 2 or 3 hole
overlap) using carriage bolts (3), lock washers (4) and hex
nuts (5). With the door closed connect the straight door arm
section (1) to the door bracket with clevis pin (6). Secure with
ring fastener (7). Disconnect the inner and outer trolley. Slide
the outer trolley back toward the opener and join the curved
arm (2) to the connector hole in the trolley (8) with clevis pin
(6). It may be necessary to lift the door slightly to make the
connection. Secure with ring fastener (7).
NOTE: When setting the up limit, the door should not
have a “backward” slant in fully open position. A slight
backward slant (9) will cause unnecessary bucking
and/or jerking whilst operating the door.
B. SECTIONAL DOOR INSTALLATION:
Connect according to Figure B, then proceed to
Section 21.
7
6
2
9
1
8
4
5
3
A
4
3
5
B
7
6
6
1
2
20
Sectional and one-piece door installation procedure:
Door bracket (1) has left and right side fastening holes. If
your installation requires top and bottom fastening holes
use both the door bracket and door bracket plate (2) as
shown.
1.Centre door bracket (with or without door bracket plate,
as required) at the top inside face of door as shown. Mark
holes.
A. One-piece doors
Locate bracket at inside face of the door 0-100mm down.
B. Sectional doors
150 - 250mm below the top of the door.
2. Fasten bracket to the door using the appropriate screws.
A. Wooden doors
Drill 8mm holes (5/16") and fasten the door bracket with
nut, lock washer, and carriage bolt (3).
B. Sheet metal doors
Fasten with metal screws (4).
C. One-piece door optional
Fasten with wood or metal screws (4).
1
2
A. 0-100mm
B. 150-250mm
A
B
1
4
C
1
2
3
3
1
2
4
1
2
19
2
1
24V/21W Max.
Turn power off, then gently pull lens (2) downward until the
lens hinge is in the fully open position. Do not remove the
lens. Install a 24V/21W maximum light bulb (1) in the socket
as shown. Turn power on, the light will turn on and remain lit
f
or 2-1/2 minutes. After 2-1/2 minutes it will turn off. To close,
gently push diffuser up until engaged.
18
Connect Electric Power
TO AVOID INSTALLATION DIFFICULTIES, DO NOT RUN THE GARAGE DOOR OPENER UNTIL INSTRUCTED TO
DO SO. Connect to properly fused and earthed power outlet.
8
INSTALL LIGHT
FASTEN DOOR BRACKET
ASSEMBLE DOOR ARM

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