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
Access your property like never before. With MyQ® Technology you can monitor and control your gate from anywhere and get in quickly and securely with the built-in interference eliminating Security+ 2.0® radio.
Heavy-Duty Cast Aluminum Housing DC Motor powerful enough to perform in the most demanding applications.
Soft start/stop operation extends operator and hardware life for heavy-duty gate use.
Gate Size rated for gates up to 16 ft. in length or weighing up to 850 lbs.
Includes: Single arm control box solar harness kit solar panel kit 12V 20W LMRRU photoeye and battery 12V 33 Ah.
The Silencio model is a low headroom apartment type operator designed for use on industrial standard lift sectional doors with high daily use requirements
Standard features include: N-4/12 12" x 10" x 6" panel B-2 C-2 D1 E2 T TS Mid-stop control functions Time delay on reverse On-board radio receiver hinged cover backplate primary fuses in panel
If PBS on cover required an additional charge will apply
If panel not ordered with an operator an additional charge will apply