Fig. 6.11. Master brake cylinder
Removal
Disconnect the brake fluid level sensor connector.
Disconnect the brake pipes from the master cylinder. Install plugs on the open holes.
Caution: Remove any spilled brake fluid from painted surfaces immediately.
Fig. 6.12. Location of the master brake cylinder
Loosen the mounting nuts and remove the brake cylinder (Fig. 6.12).
Disassembly
Remove the reservoir cap and drain the brake fluid.
Fig. 6.13. Removing the tank
Loosen the reservoir mounting screws and use a screwdriver to remove the reservoir from the brake cylinder seals (Fig. 6.13).
Fig. 6.14. Removing the retaining ring
Remove the retaining ring (Fig. 6.14).
Fig. 6.15. Removing the primary piston limiting pin
Remove the primary piston limit pin by pressing on the piston with a screwdriver. Remove the primary piston (Fig. 6.15).
Fig. 6.16. Removing the secondary piston limiting pin
Remove the secondary piston limiting pin by pressing on the piston with a screwdriver. Remove the secondary piston (Fig. 6.16).
Note: The primary and secondary pistons cannot be disassembled.
Examination
Check the condition of the cylinder mirror (scoring, rust).
Assess the degree of wear of the cylinder and replace it if necessary.
Note: If the cylinder surface is damaged, replace the brake master cylinder assembly.
Note: Wash the master cylinder parts with alcohol.
Assembly
When installing, lubricate all parts with clean brake fluid.
Fig. 6.17. Sequence of piston and spring installation
The original material is located on the website: hyundaibook.ru
Carefully install the springs and pistons into the cylinder, making sure that the parts are positioned correctly (Fig. 6.17).
Fig. 6.18. Installing the retaining ring
Press the piston with a screwdriver and install the retaining ring (Fig. 6.18).
Press the piston until the spring is fully compressed and install the stop pin.
Install the tank seals.
Fig. 6.19. Master brake cylinder reservoir
Install the master cylinder reservoir (Fig. 6.19).
Installation
Install the master cylinder to the brake booster.
Install the booster and cylinder onto the engine compartment bulkhead.
Connect the brake pipes to the master cylinder.
Connect the vacuum hose to the booster.
Connect the booster rod to the brake pedal.
Fill the master cylinder reservoir with brake fluid. Bleed the brake system.
Attention! The brake booster cannot be disassembled.