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CAUTION! Do not activate the brake while the machine is moving. EN Figure #3a Float Shut Off See Figure #5. The shut-off switch for the vac motor is located in the recovery tank. It automatically turns off the vac motor when the recovery tank is full. Figure #3b Figure #4 Figure #5 Figure #3c Nilfi sk ALTO Operator's Manual -SCRUBTEC 770 / 784 / 795 FORM NO. 70935A - 15 HOW TO PREPARE THE MACHINE FOR OPERATION How To Install The Batteries The Scrubtec machines use six 6-volt batteries. The batteries are located in the battery compartment under the recovery tank. To Install the batteries, follow this procedure: 1. Turn key switch off. 2. Make sure both tanks are empty. 3. Disconnect the hoses from the recovery tank (upper tank) & unplug the vac motor and fl oat switch. 4. Remove the tank support bracket. 5. Remove the recovery tank. 6. Place the batteries in the solution tank as shown in fi gures 6a and 6b. WARNING! Lifting batteries without help could result in an injury. Get help to lift the batteries. The batteries are heavy. 38720B38720B 38722B 38720B 38722B 38722B Figure #6a WARNING! Working with batteries can be dangerous. Always wear eye protection and protective clothing when working near batteries. NO SMOKING! 7. Connect the battery cables between batteries and install long battery cable assembly as indicated. See figure 6a and 6b. 8. Install the tank, reconnecting hoses and plugging in vac motor and float switch connectors. Install tank support bracket. NOTE: Charge the batteries before using the machine. 38722B38722B 38722B Figure #6b -16-FORM NO. 70935A Nilfi sk ALTO Operator's Manual -SCRUBTEC 770 / 784 / 795 HOW TO PREPARE THE MACHINE FOR OPERATION Battery Maintenance The electrical power to operate the machine comes from the storage batteries. Storage batteries need preventive maintenance. WARNING! Working with batteries can be dangerous. Always wear eye protection and protective clothing when working near batteries. NO SMOKING! To maintain the batteries in good condition, follow these instructions: 1. Keep the electrolyte at the correct level. The correct level is between 1/4” below the bottom of the tube in each cell and above the tops of the plates. Check the level of the electrolyte each time you charge the batteries. See fi gure #7. NOTE: Check the level of electrolyte prior to charging the batteries. Be sure the plates in each cell are covered with electrolyte . Do not top off the cells prior to charging the battery. Electrolyte expands during charging. As a result, the electrolyte could overflow from the cells. Always top off the cells with distilled water after charging. CAUTION! Irreversible damage will occur to the batteries if the electrolyte level does not cover the plates. Keep the electrolyte at the correct level. CAUTION! Machine damage and discharge across the tops of the batteries can occur if the batteries are filled above the bottom of the tube in each cell. Do not fill the batteries up to the bottom of the tube in each cell. Wipe any acid from the machine or the tops of the batteries. Never add acid to a battery after installation. CAUTION! Tap water may contain contaminants that will damage batteries. Batteries must be re-filled with distilled water only. 2. Keep the tops of the batteries clean and dry. Keep the terminals and connectors clean. To clean the top of the batteries, use a damp cloth with a weak solution of ammonia or bicarbonate of soda solution. To clean the terminals and connectors, use a terminal and connector cleaning tool. Do not allow ammonia or bicarbonate of soda to get into batteries. 3. Keep the batteries charged. Correct fi ll level Figure #7 Nilfi sk ALTO Operator's Manual -SCRUBTEC 770 / 784 / 795 FORM NO. 70935A - 17 HOW TO PREPARE THE MACHINE FOR OPERATION How To Charge The Batteries WARNING! Charging the batteries in an area without adequate ventilation could result in an explosion. To prevent an explosion, charge the batteries only in an area with good ventilation. WARNING! Lead acid batteries generate gases which could explode. Keep sparks and flames away from batteries. NO SMOKING! To charge the batteries, follow this procedure: 1. Make sure the key switch is in the “OFF” position. 2. Before charging the batteries, the battery compartment needs to be vented. To vent compartment, tip up the recovery tank until it locks in the open position (see figure #8). To close the tank, pull up on the arm and then slowly lower the tank to the closed position. CAUTION! Before raising tank, be sure tank is empty. Figure # 8 WARNING! Do not operate or perform maintenance on the machine while the recovery tank is in the open position. The tank can be accidentally bumped and it may slam shut. 3. Put the charger on a flat surface. Make sure the vents on the sides are at least two inches away from walls and other objects. Make sure there are no objects near the vents on the bottom of the charger. 4. Disconnect the battery pack connector from the batteries. 5. Co...

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