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Overheat warning lamp
Off
(normal
operation)
Flashing: Overheat
Indicates operation has
been halted due to battery
overheating.
To protect the battery, be sure to note
the following when carrying out this
operation.
• If the battery becomes hot, the
protection function will be activated
and the motor or battery will stop
operating. The overheat warning lamp
on the control panel illuminates or
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 operated continuously
under high-load conditions or if it is
used in hot-temperature conditions
(such as during summer), the
overheating protection feature may
activate frequently.
• 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.
Battery low warning lamp
Off
(normal
operation)
Flashing
(No charge)
Battery protection feature
active
Excessive (complete) discharging of
lithium ion batteries shortens their
service life dramatically. The tool
includes a battery protection feature
designed to prevent excessive
discharging of the battery pack.
• The battery protection feature activates
immediately before the battery loses
its charge, causing the battery low
warning lamp to flash.
• If you notice the battery low warning
lamp flashing, charge the battery pack
immediately.
• If it is started with too little battery
power remaining, the tool may stop
operating without the battery low
warning lamp flashing first. This
indicates that there is too little battery
power remaining to use the tool, and
the battery pack should be charged
before further use.
• If the tool is subject to a sudden load
during use that causes the motor to
lock up, the overdischarge prevention
sensor may be triggered, and the
battery low warning lamp may flash.
The lamp will stop flashing once you
address the cause of the motor’s
locking up and cycle the trigger.
01̲Eng̲EY46A2(EU).indd 14
2014/07/02 12:01:24
