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(M) Overheat warning lamp (motor /
EN
battery)
Off
(normal
operation)
The overheating protection feature halts
tool operation to protect the battery pack
in the event of overheating. The overheat
warning lamp on the control panel flashes
when this feature is active.
• If the overheating protection feature
activates, allow the tool to cool
thoroughly (at least 30 minutes). The tool
is ready for use when the overheat
warning lamp goes out.
• Avoid using the tool in a way that causes
the overheating protection feature to
activate repeatedly.
• If the tool is used in cold-temperature
conditions (such as during winter) or if it
is frequently stopped during use, the
overheating protection feature may not
activate.
The performance of the EY9L42
deteriorates significantly at and below
10 °C due to work conditions and other
factors.
• The ambient temperature range is
between 0 °C (32 °F) and 40 °C (104 °F).
If the battery pack is used when the
battery temperature is below 0 °C
(32 °F), the tool may fail to function
properly.
• When charging a cool battery pack
(below 0 °C (32 °F)) in a warm place,
leave the battery pack at the place and
wait for more than one hour to warm up
the battery to the level of the ambient
temperature.
Flashing: Overheat
Indicates operation has
been halted due to
battery overheating.
[Battery Pack]
For Appropriate Use of
Battery Pack [Fig.13]
• The rechargeable batteries have a
limited life.
• For optimum battery life, store the Li-ion
battery pack following use without
charging it.
• When operating the battery pack, make
sure the work place is well ventilated.
For safe use
• The battery pack is designed to be
installed by proceeding two steps for
safety. Make sure the battery pack is
installed properly to the main unit before
use.
• If the battery pack is not connected firmly
when the switch is switched on, the
overheat warning lamp and the battery
low warning lamp will flash to indicate
that safe operation is not possible, and
the main unit will not rotate normally.
Connect the battery pack into the unit of
the tool until the red or yellow label
disappears.
[Battery Charger]
Charging
CAUTION:
1) If the temperature of the battery pack
falls approximately below −10 °C
(14 °F), charging will automatically
stop to prevent degradation of the
battery.
2) The ambient temperature range is
between 0 °C (32 °F) and 40 °C
(104 °F).
If the battery pack is used when the
battery temperature is below 0 °C
(32 °F), the tool may fail to function
properly.
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