English
25
MAINTENANCE AND INSPECTION
1. Inspecting the saw blade
Since use of a dull saw blade will degrade e
ffi
ciency 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, retighten them immediately. Failure to do so could result in
serious hazard.
3. Inspecting the carbon brushes (
Fig. 14
)
The motor employs carbon brushes which are
consumable parts. Since an excessively worn carbon
brush can result in motor trouble, replace the carbon
brushes with new ones having the same carbon brush
No. shown in the
fi
gure when it becomes worn to or
near the “wear limit”. In addition, always keep carbon
brushes clean and ensue that they slide freely within
the brush holders.
CAUTION
When replacing the new carbon brushes, always use genuine HiKOKI carbon
brushes with the number speci
fi
ed in the drawing.
4. Replacing carbon brushes
Disassemble the brush caps with a slotted-head screwdriver. The carbon brushes can then
be easily removed.
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
water.
6. Adjusting the base and saw blade to maintain perpendicularity
The angle between the base and the saw blade has been adjusted to 90°, however should
this perpendicularity be lost for some reason, adjust in the following manner:
(1) Turn the base face up (
Fig. 15
) and loosen the
wing-nut and wing-bolt (
Fig. 5, 6 on page 22
).
(2) Apply a square to the base and the saw blade and
turning the hex. socket set screw with a hex. bar
wrench, shift the position of the base to produce
the desired right angle.
CAUTION
In the operation and maintenance of power
tools, the safety regulations and standards
prescribed in each country must be observed.
6 mm
17 mm
43
Wear limit
No. of carbon
brush
Fig. 14
Fig. 15
Square
Base
Hex. bar
wrench
Hex. socket
set screw
Saw
blade
000Book̲C7U3̲ChS.indb 25
000Book̲C7U3̲ChS.indb 25
2018/03/27 14:34:54
2018/03/27 14:34:54
