Makita UC3030A Owner's And Safety Manual

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Makita UC3030A Owner's And Safety Manual Manual pdf 19 page image

19SERVICEDReplacing the saw chainCAUTION:Use only chains and guide bars designed for this saw (seethe Extract from the spare parts list)!Check the sprocket (1) before mounting a new chain.CAUTION:Worn out sprockets (2) may damage the new chain and musttherefore be replaced.Do not attempt to replace the sprocket yourself. Sprocket re-placement requires special training and tools and must be doneat a MAKITA service center.EInspecting and replacing the carbon brushesImportant:Inspect the carbon brushes at regular intervals!A notch on the brush shows the limit of wear.NOTE:The carbon brush is very delicate, so be careful not to let itdrop. When taking it out, be sure to note the position it wasinstalled in, since each brush is run in with the rotor.- Use a slotted bit screwdriver to unscrew the cover (1), andthen pull out the brush (2).- If the wear limit has not yet been reached, put the brush backin the same position and screw the cover (1) back on.- Run the saw briefly (about a minute) so the brushes can runin again.Important: Now test the run-out brake (see page 14). If thesaw chain does not come to a full stop within two second, runthe saw again briefly and repeat the test until the brake func-tions properly.NOTE: After installing new carbon brushes, run the saw about5 minutes and then check the run-out brake.1 21 2