The travel nut on LA500DC and LA500DCS gate operators may break when excessive force is applied to the gate such as being struck from a vehicle.
The travel nut can be identified as the white plastic nut that attaches to the internal lead screw of the arm.
The symptom of this problem is that the trolley assembly slides back and forth along the guide slots without mechanical restraint.
LiftMaster has created Trolley Service Kit K75-39337 with all the necessary parts and provides instructions on how to replace a damaged travel nut
within an LA500 arm
Kit includes: MM-00031 wall L-bracket (1) MM-00032 trolley arm 105 degrees (1) MM-00033 trolley extension arm (1) MM-00034 trolley arm sliding bracket (1) MO-00004 trolley arm compression spring (1) and MR-00009 red rope c/w handle and warning label (2)
Battery Backup: 208 cycles or up to 24 days of standby power when the power is down
Security+2.0®: Access your property quickly with Security+2.0® Technology that utilizes a tri-band signal that virtually eliminates interference and offers extended range each time the remote control is used
MyQ®: Securely control and monitor your Gate Operator from anywhere and get activity notifications through the MyQ® app
Soft start / stop extends operator and hardware life in high-cycle and heavy-gate applications
Wireless dual-gate communication eliminates expensive conduit costs and unsightly driveway scars
Keyed manual disconnect when unlocked allows gate to be operated manually.
Doors used with this operator should be balanced with the ability to be manually lifted by hand in an emergency or power outage.
The operators are typically mounted to the wall when used with smaller sectional overhead doors with a vertical or high lift and mounted to the wall or the front of the hood when used with rolling doors and grilles.
J operators are attached to the door jackshaft to indirectly drive the door
MyQ® Technology enables you to securely monitor and control your facility operator and lights with your smartphone tablet or computer for greater peace of mind.
Security+ 2.0® safeguards your facility – with every click a new code is sent to the commercial door operator so the door opens only for you
Suspended from the ceiling the operators are used on sectional overhead doors with standard lift.
T operators are directly attached to drive and control the door.
MyQ® Technology enables you to securely monitor and control your facility operator and lights with your smartphone tablet or computer for greater peace of mind.
Security+ 2.0™ safeguards your facility – with every click a new code is sent to the commercial door operator so the door opens only for you.
Suspended from the ceiling the operators are used on sectional overhead doors with standard lift.
T operators are directly attached to drive and control the door.
MyQ® Technology enables you to securely monitor and control your facility operator and lights with your smartphone tablet or computer for greater peace of mind.
Alerts can be received as email or pop-up (push) notifications on a mobile device ensuring the status of your commercial door.
MyQ Mobile App is a free download with no annual activation fee.
The transmitter comes standard with a NEMA 4 weather-proof
enclosure
Compact design that allow for easy troubleshooting.
The transmitter has an audible alarm that activates when the battery has
25% of its life remaining
Easy to configure
· Non-monitored system ideal for operators
manufactured prior to:
· Doors: August 2010
· Gates: January 2016
· NEMA 4 transmitter built to endure rugged environments
EAGLE ARTEK is a motion sensor for all types of automatic doors. Its slim and compact design ensures discreet integration for your application.
Superior field performance with improved filters that help to reduce false detections.
Easy to install and set up with flexible parameters and simple push-button settings.
•The detection field can be adjusted without manually adjusting the antenna.
Model 7500 shutters can be up to 13 feet and 6 inches wide and 12 feet tall with UL labels Class A B or C while still being able to function as normal counter rolling shutters.
Oversized fire shutters can be manufactured up to 20 feet wide.
Along with UL labels that will automatically close the fire shutters for either 3 1½ or ¾ hours the fire shutters can also be manufactured with smoke protection.
Pricing varies according to size and options selected.
LED DIAGNOSTIC DISPLAY Simplifies installation and troubleshooting.
WIRELESS DUAL-GATE COMMUNICATION Eliminates expensive conduit costs and unsightly driveway scars.
BI-PART DELAY Monitors and adjusts speed and position of each wing to ensure primary gate closes last.
SYNCHRONIZED CLOSE Simultaneously closes gates.
WITH OPTIONAL EXPANSION BOARD
PROGRAMMABLE AUXILIARY RELAYS Easily add additional features such as warning lights/alarms.
ANTI-TAILGATE Prevents unauthorized access. Gate will pause when closing as vehicle pulls onto interrupt loop or breaks photo beam. Once vehicle backs up gate will continue to close.