Makita HR1821 Power Hammer User Manual


 
MAINTENANCE
CAUTION:
Always
be
sure that the tool
is
switched off and unplugged before attempting to perform
inspection and maintenance.
Replacing
carbon
brushes
0
Both carbon brushes should be replaced
after about
150
hours of use. When the
resin insulating tip inside the carbon
brush
is
exposed to contact the com-
mutator,
it
will automatically shut off
the motor. If carbon brushes wear out
too quickly, ask Makita Authorized or
Factory Service Centers to determine
the cause before replacing them. Use
only Makita carbon brushes.
*Use the screwdriver to remove the brush
holder cap
as
shown in the figure.
Insulating tip
77
Fig.
1
Fig.
14
Take out the worn brush, insert the new
one and secure the brush holder cap.
I
I
Fig.
15
10