Maintenance And Service - Bosch AL 3640 CV Professional Original Instructions Manual

OBJ_BUCH-1962-002.book Page 5 Wednesday, July 31, 2013 12:05 PM
Charging Procedure
The charging procedure starts as soon as the mains plug of
the battery charger is plugged into the socket outlet and the
battery 1 is inserted into the charging compartment 2.
Due to the intelligent charging method, the charging condi-
tion of the battery is automatically detected and the battery is
charged with the optimum charging current, depending on
battery temperature and voltage.
This gives longer life to the battery and always leaves it fully
charged when kept in the charger for storage.
Meaning of the Indication Elements
Flashing Green Battery Charge Indicator 3
The rapid-charging procedure is signalled
by a flashing green battery charge indica-
tor 3.
During the charging procedure, the three green charge-con-
trol indicators 5 of the battery light up one after the other
and briefly go out. The battery is fully charged when the three
green indicators light up continuously. After approx.
5 minutes after the battery has been fully charged, the three
green indicators go out again.
Note: The rapid-charging procedure is only possible when the
battery temperature is within the allowable charging temper-
ature range, see section "Technical Data".
Continuous Lighting of the Green Battery Charge
Indicator 3
Continuous lighting of the green battery
charge indicator 3 indicates that the bat-
tery is fully charged.
Additionally, a signal tone sounds for approx. 2 seconds,
which acoustically indicates that the battery is fully charged.
Afterwards, the battery can be removed for immediate use.
When the battery is not inserted, continuous lighting of the
battery charge indicator 3 indicates that the mains plug is in-
serted in the socket and that the battery charger is ready for
operation.
Continuous Lighting of the Red Battery Charge Indicator 4
Continuous lighting of the red battery
charge indicator 4 indicates that the tem-
perature of the battery is not within the al-
lowable charging temperature range, see
section "Technical Data". As soon as the allowable charging
temperature range is reached, the battery charger automati-
cally switches to rapid charging.
When the red temperature control indicator 6 lights up
when placing the battery into the charger, the temperature of
the battery is not within the charge-temperature range (see
section "Technical Data"). The battery cannot be charged un-
til after the allowable operating temperature range has been
reached.
Bosch Power Tools
Flashing Red Battery Charge Indicator 4
A flashing red battery charge indicator 4
indicates a different malfunction of the
charging procedure, see section "Trouble-
shooting – Causes and Corrective
Measures".
Troubleshooting Causes and Corrective
–
Measures
Cause Corrective Measure
Flashing red battery charge indicator 4
No charging procedure possible
Battery not (properly) inserted Properly insert battery into
battery charger
Battery contacts Clean the battery contacts
contaminated (e.g. by inserting and re-
moving the battery several
times) or replace the battery
Battery pack defective Replace the battery
Battery charge indicators 3 or 4 do not light up
Mains plug of battery charger Insert mains plug (fully) into
not plugged in (properly) the socket outlet
Socket outlet, mains cable or Check the mains voltage;
battery charger defective have the battery charger
checked by an authorised
after-sales service agent for
Bosch power tools
Working Advice
With continuous or several repetitive charging cycles without
interruption, the charger can warm up. This is not meaningful
and does not indicate a technical defect of the battery charger.
A significantly reduced working period after charging indi-
cates that the battery is used and must be replaced.
Battery Cooling (Active Air Cooling)
The fan control integrated in the battery charger controls the
temperature of the inserted battery. When the battery tem-
perature is above 30 °C, a fan cools down the battery to the
optimal charging temperature. The switched-on fan produces
a fan noise.
The battery temperature is within the optimal charging tem-
perature range when the fan is not running. Another reason
for a non working fan might be that it is defective. In this case,
the charging time of the battery might be extended.

Maintenance and Service

After-sales Service and Application Service
Our after-sales service responds to your questions concern-
ing maintenance and repair of your product as well as spare
parts. Exploded views and information on spare parts can al-
so be found under:
www.bosch-pt.com
Bosch's application service team will gladly answer questions
concerning our products and their accessories.
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