LiftMaster 8557 8557 Elite Series Users Guide Manual - Page 12

Maintenance EVERY MONTH • Manually operate door. If it is unbalanced or binding, call a trained door systems technician. • Check to be sure door opens and closes fully. Adjust if necessary, see page 10. • Test the safety reversal system. Adjust if necessary, see page 11. EVERY YEAR • Oil door rollers, bearings and hinges. The garage door opener does not require additional lubrication. Do not grease the door tracks. • (If applicable) Test the battery backup and consider replacing the battery to ensure the garage door opener will operate during an electrical power outage. Testing the Battery Backup: 1. Unplug the garage door opener. The battery status LED will either glow solid orange indicating opener is operating on battery power or will flash indicating low battery power. 2. Open and close the door using the remote control or door control. NOTE: The garage door opener may run slower if the battery is not fully charged. The battery will take 24 hours to fully charge. 3. Plug in the garage door opener. Verify the battery status LED is flashing green, indicating the battery is charging. EVERY TWO TO THREE YEARS • Use a rag to wipe away the existing grease from the garage door opener rail. Reapply a small layer of white lithium grease to the top and underside of the rail surface where the trolley slides. The Remote Control Battery To prevent possible SERIOUS INJURY or DEATH: • NEVER allow small children near batteries. • If battery is swallowed, immediately notify doctor. To reduce risk of fire, explosion or chemical burn: • Replace ONLY with 3V2016 coin batteries. • DO NOT recharge, disassemble, heat above 212°F (100°C) or incinerate. To replace the batteries, remove the two screws and open the remote control housing. Push the battery out of the holder for removal. Insert replacement batteries positive side up (+). Replace the batteries with only 3V2016 coin cell batteries. Dispose of old batteries properly. Batteries Screws (2) NOTICE: To comply with FCC and/or Industry Canada (IC) rules, adjustment or modifications of this transceiver are prohibited. THERE ARE NO USER SERVICEABLE PARTS. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device complies with Part 15 of the FCC rules and IC RSS-210. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This Class B digital apparatus complies with Canadian ICES-003. AVIS : Les règles de la FCC et/ou d'Industrie Canada (IC) interdisent tout ajustement ou toute modification de ce récepteur. IL N'EXISTE AUCUNE PIÈCE SUSCEPTIBLE D'ÊTRE ENTRETENUE PAR L'UTILISATEUR. Tout changement ou toute modification non expressément approuvé par la partie responsable de la conformité peut avoir pour résultat d'annuler l'autorité de l'utilisateur de faire fonctionner l'équipement. Cet appareil est conforme aux dispositions de la partie 15 du règlement de la FCC et de la norme IC RSS-210. Son utilisation est assujettie aux deux conditions suivantes : (1) ce dispositif ne peut causer des interférences nuisibles, et (2) ce dispositif doit accepter toute interférence reçue, y compris une interférence pouvant causer un fonctionnement non souhaité. Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada. 12