Gate hinge center
Post bracket
TOP VIEW OF GATE
7" (17.8 cm)
7" (17.8 cm)
This QuickStart is intended to highlight a single gate
application. Each application is unique and it is the
responsibility of the purchaser, installer and end user to ensure
that the total gate system is installed and operated properly.
Refer to the installation manual for complete information
regarding installation, testing, and programming.
QuickStart
for single gate application
INSTALLATION
01-38139 © 2016, LiftMaster – All Rights Reserved
845 Larch Avenue
Elmhurst, Illinois 60126-1196
LiftMaster.com
Install the earth ground rod within 3 feet (.9 m)
of the control box. The ground wire must be a
single, whole piece of wire.
LA400DC
Primary 24 VDC Actuator Arm for
single swing gate applications
LA400DCS
Secondary 24 VDC Actuator Arm for
dual swing gate applications
LA400PKGU
Single Arm Package
Model LA400
Check national
and local codes
for proper depth
2016 UL 325 Gate Operators require use of LiftMaster
external monitored entrapment protection devices.
Attach brackets to operator Determine mounting location Position the operator Secure the brackets
Install the Control Box Earth Ground Rod Connect the Operator Arm to the Control Box
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