Brake Master Cylinder: Disassembly

WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.

REMOVE BRAKE STROKE SIMULATOR TUBE
1. Using a union nut wrench, disconnect the brake stroke simulator tube from the brake master cylinder with simulator
  
  Fig 1: Locating Union Nut
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE BRAKE MASTER CYLINDER BRACKET
1. Remove the 2 nuts, brake master cylinder bracket and brake master cylinder gasket
  
  Fig 2: Locating Brake Master Cylinder Bracket Nuts And Gasket
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE BRAKE STROKE SIMULATOR CYLINDER SUB-ASSEMBLY
1. Remove the 2 bolts, brake stroke simulator bracket, brake master cylinder gasket and brake stroke simulator cylinder.
  
  Fig 3: Locating Brake Stroke Simulator Cylinder Sub-Assembly Bolts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE MASTER CYLINDER PUSH ROD CLEVIS
1. Remove the push rod clevis and lock nut
  HINT
  
  If the protrusion of the push rod in relation to the push rod clevis is measured beforehand, it is easier to perform the brake pedal height adjustment after the brake master cylinder with simulator is installed.
  
  Fig 4: Locating Push Rod Clevis And Lock Nut
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DISASSEMBLE BRAKE MASTER CYLINDER SUB-ASSEMBLY
1. Remove the screw and brake master cylinder reservoir
  
  Fig 5: Locating Brake Master Cylinder Reservoir And Screw
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Remove the 2 reservoir grommets from the brake master cylinder.