Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2008 Lexus SC 430FACTORY OEM SERVICE PROCEDURE

Charging Systems: Charging: Generator: Disassembly

REMOVE GENERATOR REAR END COVER
1. Remove the 3 nuts and end cover.
2. Remove the terminal insulator.
  
  Fig 1: Identifying Generator Rear End Cover And Nuts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE GENERATOR BRUSH HOLDER ASSEMBLY
1. Remove the rear seal plate from the brush holder.
2. Remove the 2 screws and brush holder.
3. Remove the front seal plate from the coil.
  
  Fig 2: Identifying Generator Brush Holder
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE GENERATOR PULLEY
1. Hold SST (A) with a torque wrench and tighten SST (B) clockwise to the specified torque.
  SST 09820-63011
  
  Torque: 39 N*m (400 kgf*cm, 29 ft.*lbf)
2. Check that SST (A) is secured to the rotor shaft.
  
  Fig 3: Identifying SST
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Mount SST (C) in a vise.
4. Insert SST (B) into SST (C), and attach the pulley nut to SST (C).
  
  Fig 4: Inserting SST (B) Into SST (C)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. To loosen the pulley nut, turn SST (A) in the direction shown in the illustration.
  NOTE: To prevent damage to the rotor shaft, do not loosen the pulley nut more than one-half of a turn.

Factory Service Tools

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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.

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