SIMPLE THINGS GO WRONG WITH THE ALTERNATOR THAT ONLY TAKE MINUTES TO REPAIR WITH THE ALTERNATOR OFF THE TRUCK.CHECK IT OUT!



DENSO 130AMP DIESEL ALTERNATOR





THE MOST COMMON PROBLEM IN ALL ALTERNATORS,INCLUDING THIS ONE IS A SIMPLE FIX.THE BRUSHES,IN A REPLACEABLE CARTRIDGE IN THE DENSO ALTERNATOR,WEAR DOWN AND FAILURE OCCURS.REPLACEMENT TAKES MINUTES WITH THE ALTERNATOR OFF THE TRUCK




ABOVE ARE PARTS INSIDE THE DENSO ALTERNATOR.THE BLUE PART ABOVE TO THE RIGHT IS THE DIODE PLATE.RARELY DOES THE DIODE PLATE FAIL UNLESS WHILE JUMPING THE BATTERY WITH JUMPER CABLES SOMEONE ACCIDENTLY CROSSED THE CABLES OR ALLOWED THEM TO TOUCH WHILE THE MOTOR WAS RUNNING THEN THEY ARE INSTANTLY TOASTED AND REPLACEMENT IS REQUIRED.STILL CHEAPER THEN A NEW ONE,THE BRUSH CARTRIDGE IS LOCATED IN THE PHOTO JUST ABOVE THE DIODE PLATE.WITH THE BRUSH CARTRIDGE REMOVED THE DIODE PLATE UNSCREWS FROM THE ALTERNATOR FOR A SIMPLE REPLACEMENT,NO SOLDERING REQUIRED.
THE ARMATURE ROTATES ON TWO BEARINGS AT EITHER END OF THE ARMATURE.THE BRUSHES RUB ON WHAT IS CALLED THE COMMUTATOR,ALSO REFERRED TO AS THE SLIP RINGS.WHEN REPLACING THE BRUSHES SOME WEAR IS OFTEN NOTED ON THE COPPER SLIP RINGS HOWEVER CLEANING THEM UP A LITTLE WITH VERY FINE EMERY PAPER IS USAULLY ALL THATS NEEDED TO GET ANOTHER 80K MILES FROM YOUR ALTERNATOR.AT THE POINT WHEN THE COPPER FINALY WEARS OUT ON THE SLIP RINGS,THE SLIP RINGS ARE REPLACED AS A UNIT OR TO SAVE A LOT OF WORK REPLACE THE ARMATURE OR WHAT IS CALLED THE ROTOR IN THIS ALTERNATOR.THE NEW ROTOR SHAFT IS AVAILABLE .BEARINGS ALSO RARELY GO BAD BUT DO FAIL.

ALSO ON THE DODGE DIESEL IS A BOSCH ALTERNATOR MADE IN MEXICO,SHOWN BELOW LEFT OF THE DENSO.