2001 Lexus GS 430FACTORY OEM SERVICE PROCEDURE

Charging Systems: Charging: Generator: Disassembly

  1. REMOVE REAR END COVER. 
    1. Remove the nut and terminal insulator.
    2. Remove the bolt, 3 nuts, plate terminal, end cover and brush holder cover.
      3. Fig 1: Removing Rear End Cover
      G03149865Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. REMOVE BRUSH HOLDER AND VOLTAGE REGULATOR. 
    1. Remove the 5 screws, brush holder and voltage regulator.
    2. Remove the seal plate from the rectifier end frame.
      3. Fig 2: Removing Brush Holder & Voltage Regulator
      G03149866Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. REMOVE RECTIFIER HOLDER. 
    1. Remove the nut and cord clip.
    2. Remove the 4 screws and rectifier holder.
    3. Remove the 4 rubber insulators.
      4. Fig 3: Removing Rectifier Holder
      G03149867Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. REMOVE PULLEY. 
    1. Hold SST (SST 09820-63010 A) with a torque wrench, and tighten SST (SST 09820-63010 B) clockwise to the specified torque.
      1. Torque:  39 N.m (400 kgf.cm, 29 ft.lbf)
    2. Check that SST (SST 09820-63010 A) is secured to the rotor shaft.
      Fig 4: Securing SST 09820-63010 A To Rotor Shaft
      G03149868Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Mount SST (SST 09820-63010 C) in a vise.
    4. Insert SST (SST 09820-63010 B) into SST (SST 09820-63010 C), and attach the pulley nut to SST (SST 09820-63010 C).
    5. To loosen the pulley nut, turn SST (SST 09820-63010 A) in the direction shown. See Fig 5.
      NOTE: To prevent damage to the rotor shaft, do not loosen the pulley nut more than one-half of a turn.
      6. Fig 5: Mounting SST 09820-63010 C In A Vise
      G03149869Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Remove the generator from SST (SST 09820-63010 C).
    7. Turn SST (SST 09820-63010 B), and remove SST (SST 09820-63010 A and SST 09820-63010 B).
    8. Remove the pulley nut and pulley.
      Fig 6: Removing Generator Pulley Nut
      G03149870Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. REMOVE RECTIFIER END FRAME. 
    1. Remove the 3 nuts and cord clip.
      Fig 7: Locating Rectifier End Frame Nuts & Cord Clip
      G03149871Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using SST (SST 09286-46011), remove the rectifier end frame.
    3. Remove the generator washer from the rotor.
  6. REMOVE ROTOR FROM DRIVE END FRAME. 
    Fig 8: Removing Rectifier End Frame
    G03149872Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.