Nissan Pick-ups and Pathfinder 1989-1995

Regulator

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All models are equipped with an electronic regulator which is attached to the brush assembly internally in the alternator housing. If faulty, it must be replaced; there are no adjustments which can be made.

REMOVAL & INSTALLATION



The electronic regulator is soldered to the brush assembly inside the alternator. It is non-adjustable, and must be replaced together with the brush assembly, if faulty.

  1. Remove the alternator.
  2.  
  3. Remove the through-bolts and separate the front cover from the stator housing.
  4.  
  5. Unsolder the wire connecting the diode plate to the brush at the brush terminal.
  6.  
  7. Remove the bolt retaining the diode plate to the rear cover.
  8.  
  9. Remove the nut securing the battery terminal bolt.
  10.  
  11. Lift the stator slightly, together with the diode plate, to gain access to the diode plate screw. Remove the screw.
  12.  
  13. Separate the stator and diode, then remove the brush and regulator assembly.
  14.  
  15. On assembly, apply soldering heat sparingly, carrying out the operation as quickly as possible, to avoid damage to the transistors and diodes. Before assembling the alternator halves, bend a piece of wire into an L-shape and slip it through the rear cover, next to the brushes. Use the wire to hold the brushes in a retracted position until the case halves are assembled. Remove the wire carefully, to prevent damage to the slip rings.
  16.  
  17. Install the alternator.
  18.  

ADJUSTMENT



Regulators on these models are not adjustable.

END OF SECTION



 
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