Product Description; Ask A Question; Product Manual. Product Description. Liftmaster Garage Door Opener MODEL 580LM RJO 3800 Alternate Power Source LIFTMASTER model 580LM, ALTERNATE POWER SYSTEM RJO is a garage door accessory device. Owners manual in pdf format at no charge. To prevent possible SERIOUS INJURY or DEATH from electrocution or fire: • Disconnect power to opener BEFORE proceeding. • NEVER use an extension cord, 22 Oct 2017 Home; Manuals; myQ Smart Garage Hub; Locate Model Number; Find A Part LiftMaster Model 580LM, 580LMC Jackshaft Opener Alternate Power System www.liftmaster.com manual. LiftMaster® garage door openers meet all current state and federal regulations and CUL/UL safety regulations . Model 580LM. WARNING. Models 580LM & 580LMC. Residential Jackshaft Opener Alternate. Power System Accessory. Disconnect all power to the opener if already installed. www.liftmaster.com Fasten the manual near the garage door after installation. all other MyQ® devices and TTC will not work if using the Model 580LM. Liftmaster 580LM Alternate Power System for 3800 & 8500 Garage Openers. Liftmaster 580LM 3800 RJO Alternate Power System 580LM Owners Manual. Fasten the manual near the garage door after installation. • The door WILL NOT CLOSE . LiftMaster® Internet Gateway voltage power supply (model 580LM).