Toyota 27700-64130 Regulator Assy, Generator

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Remove the alternator and place it on a clean workbench. Remove the output terminal nut and insulator. Remove the rear cover nuts and remove the rear cover. Remove the nut, washer and insulator from the output terminal. Detach the rear cover from the alternator. Remove the two brush holder retaining screws. Remove the brush holder. Remove the three voltage regulator retaining screws and remove the voltage regulator. Measure the exposed length of each brush and compare it to the specified minimum length. If the length of the brush is less than the minimum, replace the brush assembly. Make sure that each brush moves smoothly in the brush holder. Install the voltage regulator. Install the brush holder by depressing the brush with a small screwdriver to clear the shaft. Install the brush holder screws into the rear frame. Install the rear cover and tighten the nuts securely. Install the output terminal insulator and tighten it with the nut. Install the alternator.