Recommended Procedure - Chamberlain LiftMaster PROFESSIONAL LYN300 Series Instructions Manual

RECOMMENDED PROCEDURE:

Fasten exterior installation box to wall, after previously measuring required distances and establishing correct position of drill-holes (Hardware
not included). Baseplate for transformer is already pre-assembled (A).
Push fastening clips in designated holes (B) .
Push controlboard on to fastening clips (C).
Fasten transformer on to baseplate using the large screw and large washer (D).
Put the 4 large closure screws through cover of the box. Fasten 2 of them (left or right) approx 2cm into the box.
After that the cover can be opened to the side (E).
Close box on a trial basis turning the screws all the way in. If the lid does not close completely, then the box is not tted to the wall evenly and is
therefore distorted. This must be corrected. It is very important for the box to be waterproof once closed.
A
B
6x
C
D
E
3/16 en