Bleeding [02/2017 - 05/2018]: Procedure

BLEED BRAKE MASTER CYLINDER SUB-ASSEMBLY

NOTE:

To prevent brake fluid from damaging painted surfaces, cover any surrounding parts with a piece of cloth.
Be sure to clean your hands before bleeding the master cylinder to avoid any potential contamination of the brake system. Contamination, for example by dirt particles or mineral oil, could lead to functional brake problems.

HINT:

If the brake master cylinder sub-assembly is reinstalled or runs out of brake fluid, bleed the brake master cylinder sub-assembly.

Using a union nut wrench, disconnect the 2 brake tubes from the brake master cylinder sub-assembly.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NOTE:

Do not damage or deform the brake lines during the removal procedure.
Do not allow any foreign matter such as dirt or dust to enter the brake lines from the connecting parts.

Slowly depress the brake pedal and hold it.*1

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Cover the 2 outer holes with fingers and release the brake pedal.*2

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Using a union nut wrench, connect the 2 brake tubes to the brake master cylinder sub-assembly.

*a	Torque Wrench Fulcrum Length

Specified tightening torque

Torque: 19.5 N*m (199 kgf*cm, 14 ft.*lbf)

NOTE:

Do not kink or damage the brake tubes.
Do not allow the brake tubes to twist and interfere with other parts or vehicle body during tightening.
Do not allow any foreign matter such as dirt or dust to enter the brake tubes.

HINT:

Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.
Refer to INITIALIZATION [02/2017 - 10/2017] , or refer to INITIALIZATION [10/2017 - 05/2018]
When using a union nut wrench (fulcrum length of 20 mm (0.787 in.)) + torque wrench (fulcrum length of 162 mm (6.38 in.)): 17.4 N*m (177 kgf*cm, 13 ft.*lbf)