Husqvarna MZ54ROPS Owner Manual - Page 24

MAINTENANCE Battery If the battery is too weak to start the engine, it must be recharged. Jumper Cable Use 1. Connect each end of the RED cable to the POSITIVE (+) terminal on each battery, taking care not to short against chassis. 2. Connect one end of the BLACK cable to the NEGATIVE (-) terminal of the fully charged battery. 3. Connect the other end of the BLACK cable to a good CHASSIS GROUND on the mower with the discharged battery, away from the fuel tank and battery. Cleaning the battery and terminals Corrosion and dirt on the battery and terminals can cause the battery to lose power. 1. Lift the seat and rotate fully forward until supported by the seat rod. 2. Loosen the two wing nuts attached to the side J bolts sufficiently to allow the battery mount bracket to slide down off the battery. To remove cables, reverse order 1. Remove BLACK cable first from chassis and then from the fully charged battery. 2. Remove RED cable last from both batteries. The mower has a maintenance free battery and does not need servicing. However, periodic charging of the battery with an automotive type battery charger will extend its life. • Keep battery and terminals clean. • Keep battery bolts tight. • See chart for charging times. STD BATTERY STATE OF CHARGE APPROXIMATE CHARGING TIME* TO FULL CHARGE AT 80O F Maximum Rate at: 50 Amps 30 Amps 20 Amps 10 Amps 12.6V 100% - FULL CHARGE - 12.4V 75% 20 min. 35 min. 48 min. 90 min. 12.2V 50% 45 min. 75 min. 95 min. 180 min. 12.0V 25% 65 min. 115 min. 145 min. 280 min. 11.8V 0% 85 min. 150 min. 195 min. 370 min. *Charging time depends on battery capacity, condition, age, temperature and efficiency of charger 3. Using two 1/2" wrenches disconnect BLACK battery cable then RED battery cable. 4. Carefully remove the battery from the mower 5. Rinse the battery with plain water and dry. 6. Clean terminals and battery cable ends with a wire brush until shiny. 7. Coat the terminals with grease or petroleum jelly. Replacing 1. Install the new battery with terminals in the same position as the used battery. 2. Connect RED battery cable first to positive (+) battery terminal. 3. Connect BLACK grounding cable to negative (-) battery terminal. 4. Slide mount bracket back up over battery and retighten wing nuts. IMPORTANT INFORMATION Do not open or remove caps or covers. Adding or checking level of electrolyte is not necessary. Always use two wrenches for the terminal screws. CAUTION! Always wear eye protection when around batteries. CAUTION! Lead-acid batteries generate explosive gases. Keep sparks, flame and smoking materials away from batteries. 24