Battery Charging; Preliminary Procedures - Nilfisk BA 451 Bedienungshandbuch

ENGLISH

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.
CAUTION!
If the machine is not equipped with on-board battery charger, choose an external battery charger suitable for the
type of batteries installed.
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.
Keep the tank assembly open while charging the batteries.
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. (Only for BA 451D and BA 531D): Turn the ignition key (80) to "0".
(Only for BA 451 and BA 531): Turn off the machine by pressing the switch (71) and/or (73).
4. Grasp the handle (41) and carefully lift the tank (40).
5. For WET batteries only:
• Check the level of electrolyte inside the batteries (53); if necessary, top up through the caps (54).
• Then leave all the caps (54) 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
7. Check that the external battery charger is suitable by referring to the relevant Manual. The battery charger voltage rating must
be 24 V.
8. Disconnect the battery connector (12) and connect it to the external battery charger.
9. Connect the battery charger to the electrical mains.
10. After charging, disconnect the battery charger from the electrical mains and from the battery connector (12).
11. (For WET batteries only) Check the level of electrolyte inside the batteries and close all the caps (54).
12. Connect the battery connector (12) to the machine.
13. Grasp the handle (41) and carefully lower the tank (40).
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USER MANUAL
909 6748 000(3)2010-03 A BA 451 - BA 451D - BA 531 - BA 531D