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MAINTENANCE
CAUTION
:
Always be sure that the tool
is
switched off and unplugged before attempting to perform
inspection and maintenance.
The carbon brushes wear out after about
100
hours of operation.
To maintain product SAFETY and RELIABILITY, repairs, maintenance and adjustment
including brush inspection and replacement should be performed by Makita Authorized
or Factory Service Centers, always using Makita replacement parts.
0
Sharpening
Bit
Without
60"
chamfering,
a
tungsten-
carbide tip can be ruined.
The tip of
a
bit may be used while hot,
but
it
must never be quenched in water or
oil.
The shank-mounted wheel point
is
espe-
cially made for grinding tungsten-carbide
materials. Use this kind of grinding wheel
to sharpen bits.
Do
not grind the sides
(A) and
(6)
shown in fig.
IO.
Fig.
8
ACCESS0
R
I
ES
CAUTION: The accessories specified in this manual are recommended for use with your Makita
Hammer Drill. The use
of
any other accessory might
be
hazardous.
Depth
rod
(Part
No.
321220-6)
Holder
(Part
No.
164549-5)
Grip
32
(Part
No.
273406-7)
Chuck key
(Part
No.
76321 3-
1
Steel
carrying case
(Part
No.
823121-9)
6