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MAINTENANCE AND INSPECTION
WARNING:
1. Inspecting the blade
Using a worn or chipped blade will put an excessive burden on the motor and affect
work performance. Therefore, always use a well-cutting blade.
2. Inspecting the screws
Regularly inspect all screws and ensure that they are properly tightened. Should any of
the screws be loose, retighten them immediately.
WARNING:
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. 6)
The motor employs carbon brushes which are consumable parts. When they become
worn to or near "wear limit", it could result in motor trouble. When an auto-stop carbon
brush is equipped, the motor will stop automatically. At that time, replace both carbon
brushes with new ones which have the same carbon brush No. shown in the figure.
In addition, always keep carbon brushes clean and ensure that they slide freely within
the brush holders.
CAUTION:
Using this Hand Shear with a carbon brush which is worn in excess of the wear limit
will damage the motor.
NOTE: Use HITACHI carbon brush No.21 indicated in Fig. 6.
Be sure to switch power OFF and disconnect the plug from the
receptacle during maintenance and inspection.
Using this Hand Shear with loosen screws is extremely dangerous.
21
0.47" (12 mm)
Wear limit
No. of carbon brush
0.20" (5 mm)
Fig. 6
English
13
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