Hitachi C 9U2 Handling Instructions Manual page 26

English
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 Hitachi carbon
brushes with the number specifi 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 24).
(2) Apply a square to the base and the saw blade and
turning the slotted set screw with a slotted-head
screwdriver, shift the position of the base to produce
the desired right angle.
7. Service parts list
CAUTION
Repair, modifi 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.
17 mm
Square
26
Wear limit
38
6 mm
No. of carbon
brush
Fig. 14
Slotted set
Base
screw
Fig. 15