Troubleshooting - Hitachi CH 10DL Handling Instructions Manual

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TROUBLESHOOTING

Use the inspections in the table below if the tool does not
operate normally. If this does not remedy the problem,
consult your dealer or the Hitachi Authorized Service Center.
Symptom
Charger The Charge lamp does
not go on.
The Charge lamp does
not go off after 4 hours
of charging.
Tool Does not operate.
The tool does not trim
well.
14
Possible cause
The power plug is not connected to an
AC outlet.
The battery is not properly connected to
the charger.
The battery or charger electrodes are
soiled.
The battery is extremely hot.
The battery or charger is faulty.
The battery is depleted. (The battery level
warning lamp does not go on.)
The battery has not been properly
installed.
The blade has been incorrectly installed.
Foreign matter is lodged in the blade.
The tool has been used for heavy work.
The Lock Off button was not pressed
when the switch was pulled back.
The blade has become dull.
Remedy
Connect the power plug to an AC outlet.
Insert the battery so that it is properly
seated in the charger.
Use a cotton swab or other tool to clean
the electrodes.
Allow the battery to properly cool before
charging.
Disconnect the power plug and consult
your dealer or the Hitachi Authorized
Service Center.
When a storage battery with little power
left is not used for an extended period of
time, battery power may drop so low that
it cannot turn on the battery level warning
lamp. Charge the battery.
Remove the storage battery from the
battery compartment in the tool and
check for foreign matter. Also check the
battery electrodes for soiling. Make sure
that the battery is pressed in until it clicks
into place.
If the blade does not move but the motor
is turning, the blade has probably been
incorrectly installed. Make sure that the
crank holder and crank cam has been
installed.
When there is foreign matter in the
blade, remove the battery and use a
pair of tongs or similar tool to remove it.
Take great care since the tool may start
operating when the foreign matter has
been removed.
Sap or rust may also prevent the blade
from operating. Use a wire brush or
similar tool to remove sap or rust.
This is the eff ect of a function that
protects the battery by turning off the
motor when the tool is exposed to an
excessive load. Release the switch and
remove what caused the excessive load
and pull back the switch to resume work.
To prevent accidents from incorrect
operation, the Lock Off switch must be
pressed while the switch is pulled back to
start the motor.
Use a wire brush or other tool to remove
sap and rust and use a fi le or whetstone
to sharpen the blade. If these eff orts fail
to make the blade sharper, the blade
has reached the end of its service life.
Replace the blade with a new one.