Precautions Concerning Brakes (100 To 120 V Models) - Hitachi C 12FSA Technical Data And Service Manual

7.2 Precautions Concerning Brakes (100 to 120 V models)

This unit is a brake-equipped model which stops running when the switch is turned off. The unit stops operation
normally in 5-6 seconds when the switch is turned off. If it takes more than 10 seconds to stop, absolutely avoid
further use of this unit.
In this event, ensure that your customers bring this machine into their local Hitachi power tool dealer for servicing.
1) Be sure to use the carbon brushes dedicated to this machine (Code No. 999038).
Using carbon brushes other than that specified will adversely affect the brake performance.
2) If the brake should fail to work, check the carbon brushes for correct function. If it is shorter than 6 mm, replace
them with new ones. If the brake still does not work, replacement of other items such as the armature
assembly may be required.
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