Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Reassembly

REASSEMBLY

PROCEDURE

1. TEMPORARILY TIGHTEN FRONT DISC BRAKE BLEEDER PLUG

(a) Temporarily install the front disc brake bleeder plug to the front disc brake cylinder.

HINT:

Fully tighten the front disc brake bleeder plug after bleeding the system.

2. INSTALL FRONT DISC BRAKE BLEEDER PLUG CAP

(a) Install the front disc brake bleeder plug cap to the front disc brake bleeder plug.

3. INSTALL PISTON SEAL

(a) Apply a light layer of lithium soap base glycol grease to the entire circumference of a new piston seal.

Lithium Soap Base Glycol Grease

(b) Install the piston seal to the front disc brake cylinder. NOTICE: Securely install the piston seal into the groove of the front disc brake cylinder.

*1 Piston Seal *2 Front Disc Brake Cylinder

4. INSTALL FRONT DISC BRAKE PISTON

(a) Apply a light layer of lithium soap base glycol grease to the entire circumference of a new cylinder boot.

*1	Cylinder Boot
*2	Front Disc Brake Piston
	Lithium Soap Base Glycol Grease

(b) Apply a light layer of lithium soap base glycol grease to the contact surfaces of the front disc brake piston.

(c) Install the cylinder boot to the front disc brake piston.

NOTICE:

Securely install the cylinder boot into the groove of the front disc brake piston.

(d) Install the front disc brake piston to the front disc brake cylinder.

NOTICE:

Do not forcibly install the front disc brake piston into the front disc brake cylinder.

5. INSTALL CYLINDER BOOT

(a) Install the cylinder boot to the front disc brake cylinder as shown in the illustration. NOTICE: Securely install the cylinder boot into the groove of the front disc brake cylinder and front disc brake piston. Do not damage the cylinder boot.

*1 Cylinder Boot *2 Front Disc Brake Piston *3 Front Disc Brake Cylinder