LiftMaster MEGA SWING MEGA SWING - MSWDCBB Manual - Page 16

MAINTENANCE Check at the intervals listed in the following chart: ITEM Instant Reverse Device (IRD) Fasteners Bearings & Shafts PROCEDURE Test IRD Reversal Check and tighten as required. Check for wear and lubricate. EVERY MONTH z EVERY 3 MONTHS EVERY 6 MONTHS z z Battery Maintenance Replace batteries. ◆  Repeat ALL procedures. EVERY 12 MONTHS EVERY 24 MONTHS ◆ ◆ z GENERAL SERVICE WARNING • Belt loose or needs replacement, adjust with 4 bolts that support motor to allow 1/4" play. CAUTION • Charge voltage for batteries should be 27.5 +0.05, -0 Vdc with batteries disconnected (Set with R63, shown on the Control Board Layout page). • Replace batteries with LiftMaster P/N MBAT batteries. Replace in pairs. WARNING To prevent possible SERIOUS INJURY or DEATH from WARNING electrocution or fire, BEFORE proceeding: • Disconnect ac power at the fuse box. • Disconnect dc power at the battery connection. BATTERY DISPOSAL Replaced batteries must be treated as a hazardous waste and disposed of in accordance with State, Local and Federal Regulations. See the battery manufacturer's Material Safety Data Sheets (01-30839 "MSDS Sheets, Battery, Standard"). BATTERY REPLACEMENT AVERTISSEMENT Service Kits are available for battery replacement. Please contact Technical Support (see back of this document for contact information). ATTENTION BATTERY MAINTENANCE / TESTING The batteries are maintenance free. However, to insure proper and safe operation, it is recommended that the batteries be replaced every two years. Battery testing is conducted automatically. See the Battery Test Description section for manually initiating the battery test. AVERTISSEMENT BATTERY HANDLING / STORAGE Refer to the battery manufacturer's Material Safety Data Sheets (01-30839 "MSDS Sheets, Battery, Standard"). LiftMaster does not recommend storage of batteries in the field. Batteries are intended for immedAiateVusEe. RTISSEMENT ADVERTENCIA PRECAUCIÓN ADVERTENCIA 16 ADVERTENCIA