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MAINTENANCE AND INSPECTION
WARNING
Be sure to switch power OFF and disconnect the plug from the receptacle during maintenance and inspection.
1.
Inspecting the drill bits
Since use of a dull tool will cause motor malfunctioning
and degraded effi ciency, replace the drill bit with a new
one or resharpening without delay when abrasion is
noted.
2.
Inspecting the screws
Regularly inspect all screws and ensure that they are
properly tightened. Should any of the screws be loose,
retighten them immediately.
WARNING
Using this Rotary Hammer with loosen screws is
extremely dangerous.
3.
Maintenance of the motor
The motor unit is the very "heart" of the power tool.
Exercise due care to ensure the motor does not
become damaged and/or wet with oil or water.
4.
Grease replacement
This Rotary Hammer is of full air-tight construction to
protect against dust and to prevent lubricant leakage.
Therefore, this Rotary Hammer can be used without
lubrication for long periods. Replace the grease as
described below.
○
Grease Replacement Period
After purchase, replace grease after every 6 months
of usage. Ask for grease replacement at the nearest
authorized Service Center.
5.
Service and repairs
All quality power tools will eventually require servicing or
replacement of parts because of wear from normal use.
To assure that only authorized replacement parts will
be used, all service and repairs must be performed by
a HITACHI AUTHORIZED SERVICE CENTER, ONLY.
6.
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.
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.
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