Battery Charging; Preliminary Procedures - Nilfisk ECOFLEX BA 651 Manuel D'utilisation

BATTERY CHARGING

NOTE
Charge the batteries when the yellow or red warning light (81b or 81c) turns on, or at the end of every working cycle.
CAUTION!
Keeping the batteries charged make their life last longer.
CAUTION!
When the batteries are discharged, charge them as soon as possible, as that condition makes their life shorter.
Check for battery charge at least once a week.
WARNING!
WET battery charging produces highly explosive hydrogen gas. Charge the batteries in well-ventilated areas and
away from naked fl ames. Do not smoke while charging the batteries.
While charging the battery, always keep the tank assembly open.
WARNING!
Pay careful attention when charging the batteries as there may be battery fl uid leakages. The battery fl uid is
corrosive. If it comes in contact with skin or eyes, rinse thoroughly with water and consult a physician.

Preliminary procedures

1. Open the cover (22) and check that the recovery tank (21) is empty, otherwise empty it with the drain hose (16).
2. Drive the machine to the appointed recharging area.
3. Turn the ignition key (80) to "0".
4. Grasp the handle (41) and carefully lift the tank (40).
5. For WET batteries only:
• Check the level of electrolyte inside the batteries (52); if necessary, top up through the caps (53).
• Then leave all the caps (53) open for battery charging.
• If necessary, clean the upper surface of the batteries.
6. Charge the batteries according to one of the following procedures, depending on the presence of the battery charger (90).
Charging the batteries with an external battery charger
1. Check that the battery charger is suitable by referring to the Battery Charger Manual. The battery charger voltage rating is 24
V.
2. Disconnect the battery connector (12) and connect it to the external battery charger.
3. Connect the battery charger to the electrical mains.
4. After charging, disconnect the battery charger from the electrical mains and from the battery connector (12).
5. (For WET batteries only): Check the level of electrolyte inside the batteries and close all the caps (53).
6. Connect the battery connector (12) to the machine.
7. Grasp the handle (41) and carefully lower the tank (40).
Battery charging with (optional) battery charger installed on the machine
1. Connect the battery charger cable (6) to the electrical mains (the electrical mains voltage and frequency must be compatible
with the battery charger values shown on the machine serial number plate (34)).
When the battery charger is connected to the electrical mains, all machine functions are automatically cut off.
The red warning light (81c) is on when the battery charger is charging the batteries.
2. When the green warning light (81a) turns on, the battery charging is completed.
3. When the battery charging is completed, disconnect the battery charger cable (6) from the electrical mains and wind it round
its housing (7).
4. Grasp the handle (41) and carefully lower the tank (40).
NOTE
For further information about the operation of the battery charger (5), see the relevant Manual.
BA 651 - BA 751 - BA 851 - BA 751C
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