Maintenance And Inspection - HIKOKI WH 12DD Handling Instructions Manual

Under normal circumstances, use Normal mode.
Power mode is suitable for heavy-load work that requires
more force, such as tightening long screws.
Use it when you feel that Normal mode lacks suffi cient
power.
Self-drilling screw mode is used for tightening self-
drilling Teks screws. This mode reduces the chances of
overtightening that could result in severing of the screw
head, breakage of the screw, or slippage.
NOTE
○ The appropriate mode diff ers depending on the screw
and the material being screwed. Drive in a few test
screws and adjust the mode setting accordingly.
○ The tightening mode selector switch can only be set after
the battery has been installed in the driver and the trigger
switch has been pulled once.
Safeguard Function
Overburden Protection
Temperature Protection

MAINTENANCE AND INSPECTION

1. Inspecting the tool
Since use of as dull tool will degrade effi ciency and
cause possible motor malfunction, sharpen or replace
the tool as soon as abrasion is noted.
2. Inspecting the mounting screws
Regularly inspect all mounting screws and ensure that
they are properly tightened. Should any of the screws be
loose, retighten them immediately. Failure to do so could
result in serious hazard.
3. Maintenance of the motor
The motor unit winding is the very "heart" of the power
tool. Exercise due care to ensure the winding does not
become damaged and/or wet with oil or water.
4. Cleaning on the outside
When the impact driver is stained, wipe with a soft dry
cloth or a cloth moistened with soapy water. Do not use
chloric solvents, gasoline or paint thinner, for they melt
plastics.
5. Storage
Store the impact driver in a place in which the temperature
is less than 40°C and out of reach of children.
NOTE
Storing lithium-ion batteries.
Make sure the lithium-ion batteries have been fully
charged before storing them.
Prolonged storage (3 months or more) of batteries with
a low charge may result in performance deterioration,
signifi cantly reducing battery usage time or rendering
the batteries incapable of holding a charge.
However, signifi cantly reduced battery usage time may
be recovered by repeatedly charging and using the
batteries two to fi ve times.
If the battery usage time is extremely short despite
repeated charging and use, consider the batteries dead
and purchase new batteries.
CAUTION
In the operation and maintenance of power tools, the
safety regulations and standards prescribed in each
country must be observed.
LED Light Display
On 0.1 second/off 0.5 second
On 0.3 second/off 0.3 second
LED LIGHT WARNING SIGNALS
This product features functions that are designed to protect
the tool itself as well as the battery. While the switch is
pulled, if any of the safeguard functions are triggered
during operation, the LED light will blink as described in
Table 3. When any of the safeguard functions are triggered,
immediately remove your fi nger from the switch and follow
the instructions described under corrective action.
Table 3
Remove the cause of the overburdening.
Allow the tool and battery to thoroughly cool.
Important notice on the batteries for the HiKOKI
cordless power tools
Please always use one of our designated genuine
batteries. We cannot guarantee the safety and
performance of our cordless power tool when used with
batteries other than these designated by us, or when
the battery is disassembled and modifi ed (such as
disassembly and replacement of cells or other internal
parts).
GUARANTEE
We guarantee HiKOKI Power Tools in accordance with
statutory/country specifi c regulation. This guarantee does
not cover defects or damage due to misuse, abuse, or
normal wear and tear. In case of complaint, please send
the Power Tool, undismantled, with the GUARANTEE
CERTIFICATE found at the end of this Handling instruction,
to a HiKOKI Authorized Service Center.
Information concerning airborne noise and vibration
The measured values were determined according to
EN62841 and declared in accordance with ISO 4871.
Measured A-weighted sound power level: 107 dB (A)
Measured A-weighted sound pressure level: 96 dB (A)
Uncertainty K: 3 dB (A).
Wear hearing protection.
Vibration total values (triax vector sum) determined
according to EN62841.
Impact tightening of fasteners of the maximum capacity of
the tool:
Vibration emission value
Uncertainty K = 1.5 m/s
9
English
Corrective Action
a
= 11.0 m/s
2
h
2