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Home >> Lexus >> 2020 >> UX 200 Luxury >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brake System (Hydraulic) (Service Information) >> Vacuum Pump >> Installation [10/2018 - 07/2022] >> Procedure

Installation [10/2018 - 07/2022]: Procedure

  1. INSTALL VACUUM PUMP ASSEMBLY 
    1. When reusing the vacuum pump assembly:
      1. Install a new No. 1 vacuum pump O-ring to the vacuum pump assembly.
        GTY766380Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Install the vacuum pump assembly so that the coupling teeth of the vacuum pump assembly and groove of the camshaft are engaged.
      GTY802573Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Coupling Teeth
      *b Groove
      NOTE:
      • Ensure that the vacuum pump assembly is installed securely.
      • Be careful not to pinch the No. 1 vacuum pump O-ring.
    3. Using an 8 mm socket wrench, install the vacuum pump assembly with the 3 bolts.

      Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

      NOTE:

      After installation, check that there are no gaps between the matching surfaces and that the vacuum pump assembly is not installed at an angle.

  2. INSTALL ENGINE WIRE 
    1. Install the engine wire with the bolt and 2 nuts.

      Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

    2. Connect the 3 connectors.
    3. Engage the 3 clamps to install the engine wire.
    4. Connect the 7 connectors.
    5. Install the engine wire with the 3 bolts.

      Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

    6. Engage the clamp to install the engine wire.
    7. Connect the 4 connectors.
  3. CONNECT NO. 1 VACUUM HOSE CONNECTOR 
    1. Align the No. 1 vacuum hose connector with the vacuum pump assembly, and push them together until the No. 1 vacuum hose connector makes a "click" sound.
      NOTE:
      • Check that there is no foreign matter on the connecting parts.
      • After connecting the No. 1 vacuum hose connector, check that the vacuum pump assembly and No. 1 vacuum hose connector are securely connected by pulling on them.
  4. INSTALL AUXILIARY BATTERY 

    Refer to INSTALLATION [10/2018 - 07/2022]

  5. INSPECT VACUUM PUMP OPERATION 

    Refer to ON-VEHICLE INSPECTION [10/2018 - 07/2022]