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Home >> Toyota >> 2016 >> Prius C One >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brake System (Hydraulic) (Service Information) >> Brake Booster Pump >> Installation [11/2015 - ] >> Procedure

Installation [11/2015 - ]: Procedure

  1. INSTALL BRAKE ACTUATOR BRACKET ASSEMBLY 
    1. Engage the clamp to install the frame wire to the brake actuator bracket assembly.
    2. Install the brake actuator bracket assembly with the 3 bolts.
      GTY707813Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Torque: 19 N*m (194 kgf*cm, 14 ft.*lbf) 

      NOTE:
      • Do not kink or damage the brake lines.
      • Tighten the 3 bolts in the order in the illustration.
    3. Engage the 2 clamps to install the frame wire to the brake actuator bracket assembly.
  2. INSTALL NO. 1 ENGINE UNDER COVER ASSEMBLY 

    Refer to PROCEDURE - Step 59 and Refer to PROCEDURE - Step 60

  3. INSTALL FRONT WHEEL LH 

    Torque: 103 N*m (1050 kgf*cm, 76 ft.*lbf) 

  4. INSTALL BRAKE BOOSTER PUMP ASSEMBLY 
    1. Install the brake booster pump assembly to the brake actuator bracket assembly with the 2 brake booster pump bushings, 2 brake actuator case collars and 2 nuts.
      GTY739609Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 Union
      *2 Connector
      *3 Stud
      *4 Brake Booster Pump Collar
      *5 Brake Booster Pump Bushing
      *6 Brake Actuator Bracket Cushion

      Torque: 5.4 N*m (55 kgf*cm, 48 in.*lbf) 

      NOTE:
      • Do not carry the brake booster pump assembly by the parts shown in bold (*1, *2 and *3) in the illustration.
      • Do not drop the brake booster pump assembly when carrying it. If the brake booster pump assembly has been dropped, replace it with a new one.
      • Do not kink or damage the brake lines. If they are damaged, replace them with new ones.
      • Be careful not to allow any brake fluid to enter the connector.
      • When installing the brake booster pump assembly to the brake actuator bracket assembly, confirm that the brake booster pump collar*4 and brake booster pump bushing*5 are installed on the brake booster pump assembly, and 2 brake actuator bracket cushions*6 are installed on the brake actuator bracket assembly.
      • If installing a new brake booster pump assembly, do not remove the hole plug before connecting the brake lines because the brake booster pump assembly is filled with brake fluid.
    2. Connect the 2 connectors to the brake booster pump assembly.
  5. INSTALL NO. 1 BRAKE TUBE CLAMP BRACKET 
    1. Install the No. 1 brake tube clamp bracket to the brake booster pump assembly with the bolt.

      Torque: 7.0 N*m (71 kgf*cm, 62 in.*lbf) 

  6. INSTALL FRONT NO. 1 BRAKE TUBE 
    1. Temporarily tighten the union nut of the front No. 1 brake tube to the brake booster pump assembly.
    2. Install the bolt to secure the front No. 1 brake tube to the No. 1 brake tube clamp bracket.

      Torque: 7.0 N*m (71 kgf*cm, 62 in.*lbf) 

    3. Using a union nut wrench, fully tighten the front No. 1 brake tube.
      GTY710433Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Torque Wrench Fulcrum Length

      Specified tightening torque 

      Torque: 15 N*m (155 kgf*cm, 11 ft.*lbf) 

      HINT: 

      • Calculate the torque wrench reading when changing the fulcrum length of the torque wrench (Refer to PRECAUTION [11/2015 - 06/2017] and Refer to PRECAUTION [06/2017 - ] ).
      • When using a union nut wrench (fulcrum length of 22 mm (0.866 in.)) + torque wrench (fulcrum length of 250 mm (9.84 in.)):

        14 N*m (142 kgf*cm, 10 ft.*lbf)

  7. INSTALL BRAKE ACTUATOR HOSE 
    1. Connect the brake actuator hose to the brake booster pump assembly.
      GTY434640Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Identification Mark (Red)
      *b Identification Mark (Yellowish Green)
      *c Rib (Unpainted)
      NOTE:
      • Make sure that the identification mark (yellowish green) on the brake actuator hose is positioned within 30° of the brake booster pump rib.
      • Make sure to install the hose to the proper location.
    2. Move the clip to secure the brake actuator hose.
      GTY430937Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      Front of Vehicle
      NOTE:

      Install the clip within the range shown in the illustration.

  8. INSTALL BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY 

    (Refer to INSTALLATION [11/2015 - ] )