Site Preparation; Check Your Gate - Chamberlain LiftMaster LA412 Installation Manual

SITE PREPARATION

Check the national and local building codes BEFORE installation.
Trench and install conduit. Before trenching, contact underground
utility locating companies. Conduit must be UL approved for low
and high voltage.
Conduit
Entrapment protection devices are required to protect against any
entrapment or safety conditions encountered in your gate
application (refer to pages 20-21 for more details). Install warning
signs on both sides of the gate.
Entrapment Danger

CHECK YOUR GATE

Gate MUST be level. Gate and gate
post MUST be plumb. Gate MUST
have a smooth bottom edge, no
protrusions should exist.
INTRODUCTION
TRENCH
SAFETY
Warning Signs
Remove ANY/ALL wheels
from the bottom of gate.
Loops allow the gate to stay open when vehicles are obstructing the
gate path. Suggested for vehicles 14 feet (4.27 m) or longer. Loops
are not required but are recommended.
Gate must be constructed and installed according to ASTM F2200
standards (refer to page 4). Gate must fit specifications of operator
(refer to specifications).
Gate MUST NOT hit or drag
across ground.
7
LOOPS
(Inside Property)
GATE
Gate MUST swing freely and
be supported entirely by its
hinges.