Complete with: Clutch Plate Clutch Shaft Bearing Sprocket 5L Belt Motor Pulley Spring Clutch Disk Shim Washers Castle Nut Flatwashers Cotter Pin Roll Pins and Push on Fastener
Same as 308117101K 310115111 K7212589 K72-12589 71116121J
1 HP575V 3 PH Industrial Continuous Duty Jackshaft Operator
Ideal for Sectional Doors Rolling Steel
Non-Monitored logic board with integral 372Mhz radio receiver that can hold up to 20 transmitters (MK-00647/ MK-00653/ MK-00659) or 200 of the 1 channel hand held transmitters (MK-00660).
3-btn O/S/C (02-103) wall control station included
Adjustable Friction Clutch 5L320 drive belt
#50 Roller chain 18 tooth door sprocket included
Emergency chain hoist with electrical cut-off for manual operation
Controls garage door operation and garage door opener lights
On-board programming capability makes it easy to program remote controls and MyQ® enabled accessories
Compatible only with Security+2.0™ LiftMaster® garage door openers enabled by MyQ® technology
Note: If your door control has an image of a light bulb above the light button with 3 wavy lines above it the door control is capable of placing a Wi-Fi Garage Door Opener into Wi-Fi Learn mode.
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