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Starting System / Charging System (H4DO): Generator: Disassembly

  1. Remove the cap from the generator.
    Fig 1: Locating Cap From Generator
    G09476745Courtesy of SUBARU OF AMERICA, INC.
  2. Remove the four through bolts.
    Fig 2: Locating Bolts Of Generator
    G09476746Courtesy of SUBARU OF AMERICA, INC.
  3. Use a drier to heat the rear cover (A) portion to 50 - 60°C (122 - 140°F).
    Fig 3: Identifying Drier To Heat Rear Cover
    G09476747Courtesy of SUBARU OF AMERICA, INC.
  4. Insert a flat tip screwdriver or similar tool wrapped with protective tape into the gap between stator core and the front cover to disassemble.
    Fig 4: Removing Generator Assembly Mounting Bolt
    G09476748Courtesy of SUBARU OF AMERICA, INC.
  5. Hold the rotor on a vise and remove the pulley.
    CAUTION: When holding the rotor with a vise, place aluminum plates or wooden pieces on the vise jaws to prevent rotor from damage.
    Fig 5: Removing Pulley
    G09476749Courtesy of SUBARU OF AMERICA, INC.
  6. Remove the rotor from the front cover.
    Fig 6: Identifying Rotor From Front Cover
    G09476750Courtesy of SUBARU OF AMERICA, INC.
  7. Use the following procedures to remove the ball bearings.
    1. Remove the bolt, and then detach the bearing retainer.
      Fig 7: Locating Bolts Of Bearing Retainer
      G09476751Courtesy of SUBARU OF AMERICA, INC.
    2. Firmly attach an appropriate tool (such as a correct size socket wrench) to the bearing inner race.
      Fig 8: Identifying Bearing Inner Race
      G09476752Courtesy of SUBARU OF AMERICA, INC.
    3. Use the press to push the ball bearings out from the front cover.
  8. Using the bearing puller, remove the bearings from the rotor.
    Fig 9: Removing Bearings From Rotor
    G09476753Courtesy of SUBARU OF AMERICA, INC.
  9. Remove six bolts which connect the rectifier and stator coil, then remove the stator coil.
    Fig 10: Locating Bolts Of Stator Coil
    G09476754Courtesy of SUBARU OF AMERICA, INC.
  10. Remove four screws which secure the IC regulator to the rear cover, then remove the IC regulator.
    Fig 11: Locating Screw Of IC Regulator
    G09476755Courtesy of SUBARU OF AMERICA, INC.
  11. Use the following procedures to remove the brush.
    1. Remove the cover A.
      Fig 12: Identifying Cover Of Brush (A)
      G09476756Courtesy of SUBARU OF AMERICA, INC.
    2. Remove the cover B.
      Fig 13: Identifying Cover Of Brush (B)
      G09476757Courtesy of SUBARU OF AMERICA, INC.
    3. Disconnect the connection and remove the brush.
      Fig 14: Removing Brush
      G07665189Courtesy of SUBARU OF AMERICA, INC.
  12. Remove the rectifier as follows.
    1. Remove the cover on terminal B.
      Fig 15: Locating Cover On Terminal
      G09476759Courtesy of SUBARU OF AMERICA, INC.
    2. Remove the nut on terminal B.
      Fig 16: Locating Nut On Terminal
      G09476760Courtesy of SUBARU OF AMERICA, INC.
    3. Remove the bolts which secure the rectifier, and remove the rectifier.
      Fig 17: Locating Bolts Of Rectifier
      G09476761Courtesy of SUBARU OF AMERICA, INC.