When transporting or carrying the tool, do not
grasp the holder.
There is the danger of the holder slipping out of
the base. Grasp the handle instead of the holder.
MOUNTING AND DISMOUNTING SAW BLADE
To prevent an accident or personal injury, always turn off
the trigger switch and disconnect the power plug from
the receptacle before removing or installing a blade.
1. Mounting the saw blade (Fig. 7 and Fig. 10).
(1) Press in spindle lock and loosen bolt with 10 mm box
wrench. Since the bolt is left-hand threaded, loosen
by turning it to the right.
If the spindle lock cannot be easily pressed in to lock
the saw blade spindle, turn the bolt with 10 mm box
wrench while applying pressure on the spindle lock.
The saw blade spindle is locked when the spindle lock
is pressed inward.
(2) Remove the bolt and washer (C) and collar (A).
(3) Before mounting the saw blade, carefully clean and
re-install the collar (A). The collar (A) has an outside
diameter of 30 mm as shown in Fig. 10.
(4) Lift the safety cover and sub cover and mount the saw
When mounting the saw blade, confirm that the
rotation indicator mark on the saw blade and the
rotation direction of the saw are properly matched.
(5) Thoroughly clean washer (C) and the bolt, and install
them onto the saw blade spindle.
(6) Press in the spindle lock and tighten the bolt by turning
it to the left by 10 mm box wrench as in Fig. 3 and Fig.
Confirm that the spindle lock has returned to the
retract position after installing or removing the saw
Tighten the bolt so it does not come loose during
Confirm that the bolt has been properly tightened
before the power tool is started.
2. Dismounting the saw blade
Dismount the saw blade by reversing the mounting
procedures described in paragraph 1 above.
The saw blade can easily be removed after lifting the
Never attempt to install saw blades larger than
216 mm in diameter. Always install saw blades that
are 216 mm in diameter or less.
MAINTENANCE AND INSPECTION
To avoid an accident or personal injury, always confirm
the trigger switch is turned OFF and that the power plug
has been disconnected from the receptacle before
performing any maintenance or inspection of this tool.
1. Inspecting the saw blade
Since use of a dull saw blade will degrade efficiency
and cause possible motor malfunction, sharpen or
replace the saw blade as soon as 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, re-tighten them immediately. Failure to do
so could result in serious hazard.
3. Inspecting the carbon brushes (Fig. 11).
The motor employs carbon brushes which are
consumable parts. Since an excessively worn carbon
brush could result in motor trouble, replace a carbon
brush with a new one when it becomes worn to or
near the "wear limit". In addition, always keep carbon
brushes clean and ensure that they slide freely within
the brush holders.
4. Replacing a carbon brushes
Disassemble the brush cap with a minus-head
screwdriver. The carbon brushes can then be easily
5. 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
Lubricate the following sliding surfaces once a month
to keep the power tool in good operating condition
for a long time.
Use of machine oil is recommended.
Oil supply points:
* Rotary portion of hinge
* Rotary portion of vise assembly
* Sliding portion of slide pipe (A) and slide pipe (B)
Periodically remove chips and other waste material
from the surface of the power tool with a damp, soapy
cloth. To avoid a malfunction of the motor, protect it
from contact with oil or water.
Due to HITACHI's continuing program of research and
development the specifications herein are subject to
change without prior notice.