Acura 31150-PR7-J01 Regulator Assembly

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Do not attempt to overhaul the alternator; if replacing the brushes and regulator does not resolve the issue, take it to a dealer for rebuilding or exchange it for a rebuilt unit. Begin by removing the alternator and placing it on a clean workbench. Next, take off the three rear cover nuts, the nut and terminal insulator, and the rear cover. After that, remove the five screws that secure the voltage regulator and brush holder. Then, take out the brush holder and the regulator from the rear end frame. If only the regulator is being replaced, install the new unit, reassemble the alternator, and install it on the engine. If replacing the brushes, measure the exposed length of each brush and compare it to the specified minimum length; replace any brush that is shorter than the minimum. Ensure that each brush moves smoothly in the brush holder, then install the brush holder by depressing each brush with a small screwdriver to clear the shaft. Secure the voltage regulator and brush holder screws into the rear frame, followed by the installation of the rear cover, tightening the three nuts securely. Finally, install the terminal insulator and tighten it with the nut before reinstalling the alternator.