Toyota 4Runner manuals

Toyota 4Runner: Installation

INSTALLATION

PROCEDURE

1. INSTALL BRAKE ACTUATOR BOLT CUSHION

(a) Install the 3 brake actuator bolt cushions to the brake actuator bracket.

2. INSTALL BRAKE ACTUATOR CASE COLLAR

(a) Install the 3 brake actuator case collars to the brake actuator bolt cushions.

NOTICE:

Make sure the collars are in full contact with the cushions.

3. INSTALL BRAKE ACTUATOR BRACKET

(a) Install the brake actuator bracket to the brake actuator with the 3 bolts. Tighten the 3 bolts uniformly in alphabetical order.

Torque:

5.4 N·m {55 kgf·cm, 48 in·lbf}

NOTICE:

  • Do not remove the hole plugs of a new brake actuator before connecting the 6 brake lines because the brake actuator is filled with brake fluid.
  • Do not hold the actuator by the connector.
  • If the actuator is dropped, replace it.

4. INSTALL BRAKE ACTUATOR ASSEMBLY

(a) Install the brake actuator with bracket with the 3 nuts. Tighten the 3 nuts uniformly in alphabetical order.

Torque:

19 N·m {194 kgf·cm, 14 ft·lbf}

NOTICE:

  • Do not damage the brake lines or wire harness.
  • Do not hold the actuator by the connector.
  • If the actuator is dropped, replace it.

(b) Connect the wire harness bracket with the nut.

Torque:

19 N·m {194 kgf·cm, 14 ft·lbf}

(c) Set each brake line in the correct position on the brake actuator as shown in the illustration.

HINT:

  • *1: To front wheel cylinder LH
  • *2: To rear wheel cylinder LH
  • *3: To rear wheel cylinder RH
  • *4: To front wheel cylinder RH
  • *5: From front master cylinder
  • *6: From rear master cylinder

(d) Using a union nut wrench, tighten each brake line.

Text in Illustration

*a

Torque Wrench Fulcrum Length

Torque:

Specified tightening torque for flare nut A :

15 N·m {155 kgf·cm, 11 ft·lbf}

Specified tightening torque for flare nut B :

20 N·m {199 kgf·cm, 14 ft·lbf}

HINT:

  • Calculate the torque wrench reading when changing the fulcrum length of the torque wrench (See page ).

  • When using a union nut wrench (fulcrum length of 22 mm (0.866 in.)) + torque wrench (fulcrum length of 162 mm (6.38 in.)):

    Flare nut A: 13 N*m (136 kgf*cm, 10 ft.*lbf)

  • When using a union nut wrench (fulcrum length of 20 mm (0.787 in.)) + torque wrench (fulcrum length of 162 mm (6.38 in.)):

    Flare nut B: 17 N*m (177 kgf*cm, 13 ft.*lbf)


(e) Connect the brake actuator connector.

NOTICE:

  • Make sure that the connector is locked securely.
  • Make sure that the actuator connector can be connected smoothly. Do not allow water, oil or dirt to enter.

5. BLEED BRAKE SYSTEM


6. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

NOTICE:

When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See page ).


7. INSPECT BRAKE ACTUATOR USING TECHSTREAM

(See page )


8. PERFORM YAW RATE AND ACCELERATION SENSOR ZERO POINT CALIBRATION

(See page )


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