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4. Replacing carbon brushes (Fig. 16)
<Disassembly>
(1) Loosen the D4 tapping screw (1 screw)
retaining the tail cover and remove the tail
cover.
(2) Use a small screwdriver to pull up the edge
of the spiral springs that are holding down
the carbon brushes. Remove toward the
outside of the brush holders.
(3) Remove the edge of the pig-tails on the
carbon brushes, from the wiring block
group (A) and then remove the carbon
brushes from the brush holders.
<Assembly>
(1) Insert the end of the pig tails of the carbon brushes in the terminal section of the wiring
block (A).
(2) Insert the carbon brushes in the brush holders.
(3) Use the small screwdriver to return the edge of the spiral spring to the head of the carbon
brushes.
(4) Check that the pig tail of the carbon brushes are completely inserted in the pig tail groove
on the brush holders.
(5) Close the tail cover and tighten the D4 tapping screw (1 screw).
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.
NOTE:
Specifications are subject to change without any obligation on the part of the HITACHI.
Carbon brush
Spiral
spring
Fig. 16
English
Brush
holder
17
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