Hitachi CC 12Y Service and Repairs, Inspecting the carbon brushes Fig, Replacing carbon brushes

English

3.Inspecting the carbon brushes (Fig. 4)

The Motor employs carbon brushes which are consumable parts. When they become worn to or near the ”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 Numbers shown in the figure. In addition, always keep carbon brushes clean and ensure that they slide freely within the brush holders.

NOTE: Use HITACHI carbon brush number indicated in Fig. 4

Wear limit

0.67" (17mm)		No. of carbon
		brush
	a		No. of
			carbon brush
Usual carbon	0.24"		44
brush	(6 mm)
Auto-stop	0.28"		74
carbon brush	(7 mm)

4. Replacing carbon brushes

Disassemble the brush caps with a slotted-	Fig. 4
head screwdriver. The carbon brushes can then
be easily removed.

SERVICE AND REPAIRS

All quality power tools will eventually require servicing or replacement of parts because of wear from normal use. To assure that only authorized replacement parts will be used, all service and repairs must be performed by a HITACHI AUTHORIZED SERVICE CENTER, ONLY.

NOTE:

Specifications are subject to change without any obligation on the part of the HITACHI.

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