Hitachi GP 2 Instruction Manual - Page 16

English 3. Inspecting the carbon brushes (Fig. 5) The motor employs carbon brushes which are consumable parts. Replace the carbon brush with a new one when it becomes worn to its wear limit. Always keep carbon brushes clean and ensure that they slide freely within the brush holders. CAUTION: Using this portable grinder with a carbon brush which is worn in excess of the wear limit will damage the motor. No. of Carbon Brush Wear Limit ᮣ NOTE: Use HITACHI carbon brush No. 21 indicated in Fig. 5. 4. Replacing carbon brushes Remove the brush caps (Fig. 1) with a slotted screwdriver. The carbon brushes can then be easily removed. ᮣ 21 0.20" (5 mm) 0.47" (12 mm) Fig. 5 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 genuine 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. 16