TM 10-7310-281-13&PMODERN BURNER UNIT (MBU)0031 00UNIT MAINTENANCE PROCEDURES0031 00-2REPLACETo replace the Battery Pack batteries (1), remove the Battery Pack outer cover (2) by removing the 10cover retaining screws (3) with a cross tipped screwdriver.Remove the two nylon locking nuts and washers (4) on the hold-down bracket (5) of the battery beingreplaced.Slide the hold-down bracket (5) off the threaded shafts (6) and remove.Loosen and remove the battery terminal hex head bolts (7) that secure the power leads (8) to the batteryterminals of the battery being replaced.Remove the defective battery and set aside. Take care in handling the batteries, as each weighsapproximately 35 pounds. Due to their weight, the batteries may stick to the neoprene cushion of theBattery Pack base plate and make require a moderate amount of force to break the bond.Install the new battery (1) onto the Battery Pack bottom plate (9).Slide the hold-down bracket (5) onto the threaded shafts (6).Reinstall the two nylon locking nuts (4) on the hold-down bracket (5) of the battery.CAUTION!Battery DamageBatteries may explode if connected incorrectly. Red power lead MUST be connected topositive (+) terminal of battery. Black power lead MUST be connected to negative (-) terminalof battery.Reconnect each power lead (8) making sure to attach the RED lead to the positive (+) battery terminaland the temperature sensor (10) under the BLACK negative lead of the negative (-) battery terminal.Secure the power lead to the battery terminals with hex head bolts (7). Install the battery pack outercover with the 10 cover retaining screws (3) removed earlier. Be certain to dispose of the defectivebattery in an environmentally approved manner.
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