Troubleshooting Guide - Hitachi WH 18DBFL2 Safety And Instruction Manual

8. Service parts list
CAUTION
Repair, modifi cation and inspection of Hitachi
Power Tools must be carried out by a Hitachi
Authorized Service Center.
This Parts List will be helpful if presented with
the tool to the Hitachi Authorized Service Center
when requesting repair or other maintenance. In
the operation and maintenance of power tools,
the safety regulations and standards prescribed
in each country must be observed.
● To avoid injury from an accidental start, turn the switch OFF and remove the plug from the power source
or remove the battery from the main body before making any adjustments.
● All electrical or mechanical repairs should be done only by qualifi ed service technicians. Contact Hitachi
Authorized Service Center.
Problem
Tool doesn't run
Tool suddenly stopped
Tool bits
-can't be attached
-fall off
Switch can't be pulled
An abnormal high-pitched
noise occurs when the
trigger switch is pulled.
Screw head slips or comes
loose.

TROUBLESHOOTING GUIDE

WARNING
Possible Cause
No remaining battery power
The trigger switch was held down while
the battery was inserted.
Tool was overburdened
The battery is overheated.
The trigger switch was held down for 5
minutes or more.
The shape of the attachment portion
doesn't match
Forward/reverse selector button is
positioned halfway
The trigger switch is being pulled only
slightly.
Bit number doesn't match with the screw
size
The bit is worn
MODIFICATIONS:
Hitachi Power Tools are constantly being improved
and modifi ed to incorporate the latest technological
advancements.
Accordingly, some parts may be changed without
prior notice.
Important notice on the batteries for the Hitachi
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).
Charge the battery.
The safety function was activated.
If the trigger switch is released once and
then pulled again, the tool will run.
Get rid of the problem causing the
overburden.
Let the battery cool down.
This is not a malfunction.
The motor was automatically stopped to
prevent failure of the tool.
Use a bit with a hexagonal shaft that has a
width across fl ats of 6.35 mm.
If you are using an L-type tool bit, replace it
with an S-type bit.
Press the button fi rmly into position for the
desired direction of rotation.
This is not a malfunction.
It does not occur if the trigger switch is
pulled more fully.
Install a suitable bit.
Replace with a new bit.
English
Possible Solution
17