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Planning
You may find it helpful to refer to the applicable
illustration as you proceed with the installation of your
garage door operator and The Chamberlain Arm™. The
garage door opener must be installed parallel to the floor.
Follow rail assembly instructions as shown in the Owner's
manual. Note: For the best operating result of canopy doors,
use only 3-sections of the 4-piece rail or add a rail support
bracket as shown (16). Make sure rail support bracket does
not interfere with the trolley movement (Purchase part no.
600121). If 3 rails sections are used, the chain (belt) must be
cut by the same amount. For belts, a new belt clip is
recommended (Purchase part no. 041B5669).
1. Header wall
2. Header bracket
3. Garage door opener rail
4. Ceiling
5. Garage door opener
hanging brackets
6. Trolley
7. Extension arm
8. Garage door
9. Garage door spring
10. Operator
Header Bracket Installation
For a canopy door, the instructions (Figures 2A & 2B)
replace Step 13 in the Owner's manual which refer to
positioning the header bracket. If you have an inward
facing lintel, which does not allow the header bracket to
be fitted directly above the garage door, you should see
Figure 16 & text with this instruction. For dual track
doors, install the header bracket 50mm (2") above the
high point of door travel as shown in the Owner's
manual.
Standard canopy garage doors
Canopy doors are normally provided without a frame, for
fixing to a timber frame. In this case, ensure header
bracket is located as shown below:
1
2
113.5 mm
3
4
3
5
5
114A3167A-GB
11. Garage door opener
manual release
12. Chamberlain Arm™
13. Garage door track
14. Garage door, should be
horizontal in fully open
position
15. Use limit adjustment of
garage door opener to
level the garage door
16. Rail support bracket
(not supplied)
17 mm
FIGURE 2A
7
If the door has a lip,
measure from
the top of the door,
not the top of the lip.
Canopy Garage Door – with 3 rail sections
FIGURE 1
1
2
14
9
15
13
1
2
14
9
15
13
Canopy Door with Structural Obstruction
and 4 rail sections
1
3
2
8
15
13
Garage Door with Dual Tracks – with 4 rail sections
(vertical and horizontal)
For pre-hung canopy garage doors
For doors either pre-hung in a metal frame or supplied
with a metal frame for self-assembly, ensure header
bracket is located as shown below:
1
2
3
4
6
1. Header bracket
2. Header frame
3. Top of Garage Door
4. Door jamb
Proceed with Steps 14 in your Owner's Manual. Replace Step
15 in the Owner's Manual with the following instructions. Raise
the operator until the rail is horizontal. The rail should be parallel
to the floor. Temporarily support the operator using a step ladder.
Continue with Steps 16 through 18 in the Owner's Manual. In
Step 15, the removal of 25mm (1") board does not apply to
canopy doors. After Step 18 is completed, proceed to page 4 in
this manual to begin the installation of the Chamberlain Arm™.
2
5
4
3
6
7
8
10
11
12
4
16
3
6
8
7
17
11
12
4
16
4
6
7
11
12
17 mm
FIGURE 2B
5. Garage Door
6. Pre-hung door with frame
7. Lip
5
10
5
10
41 mm
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