Toyota 27371-70300 Brush, Alternator

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Unmount the wiring assembly's alternator and set it down on a miite surface such as a workbench. Remove three nuts at the rear cover and nut and terminal insulator and take off the rear cover. Subsequently, six screws at the brush holder and voltage regulator must be unscrewed. Following the removal of the rear cover, the brush holder and the regulator should be pulled out from the rear end frame. If only the regulator is getting changed, then fit the new regulator, assemble the alternator and finally, fit the same on the engine. If replacing the brushes, then first note the size of the exposed portion of the brushes and then check whether it meets the minimum length; if not, then replace it. Also, make sure that each brush slide easily in the brush holder. To install the brush holder a small screwdriver is used to force down each brush against the shaft. Screw the nuts on the voltage regulator and brush holder at the rear frame after this, place the rear cover and tighten the three nuts until they are tight well. Last, add and then screw down the terminal insulator and at last, fit it with the alternator.

Measure the exposed brush length and compare it; if the exposed length is less than the minimum allowable length, replace the brushes.

Replace the brushes and brush holder assembly. Note: On some models, it may be necessary to solder the new brushes in place.