Chamberlain MotorLift ARM 1703EML Instrucciones De Montaje página 12

Door Arm Installation
WARNING
To prevent damage to garage door, do NOT drill through the entire
door.
• With a 4.5mm (3/16") bit, drill two holes, 25mm (1")
deep.
g
FIGURE 12
3
A
2
4
1
5
1
1. Exterior of Door
2. Nut
3. Lock Washer
4. Bolt
Connecting the Extension Arm
1. Select the two bottom holes in the door arm that will
allow the screws to go into a cross bracing support of
the door (Figure 13). Door may REQUIRE
ADDITIONAL bracing to provide suitable support.
2. Mark and drill two 4.5mm (3/16") holes. Use the proper
screws provided.
The centerline of the garage door opener and the
centerline of the door arm should match to prevent
binding of the arm in operation.
3. Recheck and if not aligned, correct.
4. With the door fully closed, slide outer trolley (with
extension arm connected), against door arm. Line up
the extension arm and insert into slot in door arm
(Figure 14).
Note: Do not move the door arm to meet the extension
arm—move the extension arm to meet the angle of the
door arm.
5. Insert the two mounting bolts provided into holes as far
apart as possible and tighten (Figure 15).
6. Cut off the shipping cable tie to release the
mechanism (Figure 14 and Figure 15).
114A3167C-GB
B C 7
6
5
1
7
5. Door Arm
6. Self-trapping screw
7. Timber support
8. Lag screw
• Attach the door arm with proper hardware provided
(Figure 12).
Note: Whenever possible, use the nuts and bolts
supplied (A).
For metal or metal-braced doors, use self-tapping
screws supplied (B). For timber or timber-braced doors,
use wood screws supplied (C).
• Before tightening the screws, align the door arm so it
is vertical. Use a level to assist. The tighten the screws.
8
A
1
5
2
A
1. Bolt
2. Lock Washer
3. Nut
2
1
3
4
6
11
10
1. Header Wall
2. Rail Assembly
3. Door Spring
4. Header Bracket
5. Centerline of Header
Bracket
6. Canopy Door
5
B C
1
3
B
1. Metal or Metal-Braced
C
1. Timber or Timber-
Braced
FIGURE 13
Figure 13
5
7
8
9
7. Door Arm
8. Centerline of Door Arm
9. Cross Bracing
10. Mounting Screw
11. Door Arm must be
vertical (use level)
1