English
8
○
Replacing
carbon
brushes
Disassemble
the
brush
cap
with
a
slotted-head
screwdriver.
The
carbon
brush
can
then
be
easily
removed.
5.
Inspecting
lower
guard
functioning
and
its
maintenance
Carefully
maintain
the
lower
guard
so
that
it
remains
capable
of
smoothly
functioning.
Completely
remove
sawdust
deposited
around
the
rotary
portion
of
the
lower
guard,
and
then
apply
spindle
oil
to
its
siding
section
to
attain
better
functioning.
6.
Service
parts
list
A:
Item
No.
B:
Code
No.
C:
No.
Used
D:
Remarks
CAUTION
Repair,
modi
fi
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
modi
fi
ed
to
incorporate
the
latest
technological
advancements.
Accordingly,
some
parts
(i.e.
code
numbers
and/or
design)
may
be
changed
without
prior
notice.
NOTE
Due
to
HITACHI’s
continuing
program
of
research
and
development,
the
speci
fi
cations
herein
are
subject
to
change
without
prior
notice.
MOUNTING
AND
DISMOUNTING
THE
SAW
BLADE
CAUTION
To
avoid
serious
accident,
ensure
the
switch
is
in
the
OFF
position,
and
the
power
source
is
disconnected.
1.
Dismounting
the
saw
blade
(1)
Set
the
cutting
depth
to
maximum
and
place
the
circular
saw
in
a
rigid
position
(
Fig.
5
).
(2)
Keeping
the
lock
lever
depressed,
carefully
turn
the
bolt
with
the
supplied
box
wrench.
(3)
When
the
saw
shaft
is
fi
xed,
turn
the
box
wrench
counterclockwise
to
remove
bolt
and
washer
(B).
(4)
While
gripping
the
lower
guard
knob,
retract
the
lower
guard
into
the
saw
cover
and
take
out
the
saw
blade.
2.
Mounting
the
saw
blade
(1)
Install
the
saw
blade
in
the
reverse
order
to
removal.
(2)
Wipe
o
ff
the
swarf
from
the
spindle,
washer,
etc.
(3)
When
installing
a
saw
blade
with
a
hole
diameter
of
19
mm,
such
as
the
HITACHI
genuine
part,
install
washer
(A)
so
that
the
deeper
groove
faces
toward
the
saw
blade.
When
installing
a
saw
blade
with
a
hole
diameter
of
20
mm,
install
washer
(A)
so
that
the
shallow
groove
faces
toward
the
saw
blade.
In
both
cases,
install
washer
(B)
so
that
the
groove
faces
toward
the
saw
blade.
(
Fig.
6
).
CAUTION
When
reinstalling
the
saw
blade,
do
not
forget
to
install
the
distance
piece.
The
size
of
the
distance
piece
di
ff
ers
from
that
of
the
optionally
available
one
(refer
to
7.
Groove
cutter,
page
6).
Always
install
the
correct
distance
washer.
(4)
The
saw
blade
should
be
installed
so
that
the
arrow
on
the
saw
blade
is
aligned
with
the
arrow
on
the
saw
cover.
(5)
Tighten
the
bolt
securely.
CAUTIONS
○
If
a
box
wrench
other
than
the
one
supplied
is
used,
the
bolt
cannot
be
tightened
correctly.
Always
use
the
supplied
box
wrench.
○
Before
connecting
the
power
cord,
check
that
the
lock
lever
is
returned
to
its
original
position
and
the
saw
blade
rotates
smoothly.
MAINTENANCE
AND
INSPECTION
1.
Inspecting
the
saw
blade
Since
use
of
a
dull
saw
blade
will
cause
motor
malfunctioning
and
degraded
e
ffi
ciently,
whet
it
or
replace
with
a
new
one
without
delay
when
abrasion
is
noted.
2.
Inspecting
the
mounting
screws
Regularly
inspect
all
mounting
screws
and
ensure
that
they
are
properly
tightened.
Should
any
of
the
screws
be
loose,
retighten
them
immediately.
Failure
to
do
so
could
result
in
serious
hazard.
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.
Inspecting
the
carbon
brushes
(Fig.
7)
The
motor
employs
carbon
brushes
which
are
consumable
parts.
Since
an
excessively
worn
carbon
brush
could
result
in
motor
trouble,
replace
the
carbon
brushes
with
new
ones
which
having
the
same
carbon
brush
No.
shown
in
the
fi
gure
when
they
become
worn
to
or
near
the
“wear
limit”.
In
addition,
always
keep
carbon
brushes
clean
and
ensure
that
they
slide
freely
within
the
brush
holders.
000Book̲C6̲KoT.indb 8
000Book̲C6̲KoT.indb 8
2011/08/18 10:24:57
2011/08/18 10:24:57