3.Inspecting the carbon brushes (Fig. 10)

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 figure 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 specified in the drawing.

￿For model C9BA2 , the brake may not work if other

than the specified carbon brushes are used. When the brake becomes ineffective, replace the carbon brushes with new ones.

4.Replacing carbon brushes

Disassemble the brush caps with a slotted-head screwdriver. The carbon brushes can then be easily removed.

5.Replacing supply cord

If the replacement of the supply cord is necessary, this has to be done by Hitachi Authorized Service Center in order to avoid safety hazard.

6.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.

7.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. 11) and loosen the wing- nut and wing-bolt (Fig. 4 (A), Fig. 4 (B)).

(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.

8.Service parts list

CAUTION

Repair, modification and inspection of Hitachi Power Tools must be carried out by an 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 modified to incorporate the latest technological advancements.

Accordingly, some parts may be changed without prior notice.

NOTE

Due to HITACHI’s continuing program of research and development, the specifications herein are subject to change without prior notice.

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