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MAINTENANCE AND INSPECTION
WARNING
Be sure to turned off the switch and remove the battery before 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. Check the Screws
Loose screws are dangerous. Regularly inspect them
and make sure they are tight.
CAUTION
Using this power tool with loosened, screws is
extremely dangerous.
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. How to replace grease
Low viscosity grease is applied to this rotary hammer
so that it can be used for a long period without
replacing the grease. Please contact the nearest
service center for grease replacement when any
grease is leaking from loosened screw. Further use
of the rotary hammer despite the grease shortage
causes seizure to reduce the service life.
CAUTION
A specifi c grease is used with this machine,
therefore, the normal performance of the
machine may be badly aff ected by use of other
grease. Please be sure to let one of our service
agents undertake replacement of the grease.
5. Inspection of terminals (tool and battery)
Check to make sure that swarf and dust have not
collected on the terminals.
On occasion check prior, during and after operation.
CAUTION
Remove any swarf or dust which may have
collected on the terminals.
Failure to do so may result in malfunction.
6. Cleaning on the outsider
When the power tool 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.
7. Cleaning the battery installation compartment and the
battery
After drilling concrete, if concrete dust has
accumulated on the battery installation compartment
and the battery, clean off the accumulated concrete
dust with an air gun or a dry cloth before using the
tool. (Fig. 33)
Also, after cleaning, ensure that the battery can be
installed and removed smoothly from the tool.
CAUTION
Using the tool when the battery is covered with
concrete dust may lead to accidents such as the
battery falling during use.
Furthermore, such use may cause a malfunction
or contact failure between the battery and the
terminals.
Air gun
Battery sliding grooves
Air gun
English
Terminal
Terminal (Battery)
Sliding
grooves
Latch
Fig. 33
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