The wheel (working) cylinder of the rear wheel brake mechanism is replaced when the braking efficiency of the wheel decreases due to jamming of the pistons in the cylinder or leakage of brake fluid through the cylinder seals
We install the car on a lift or an inspection ditch (you can do it on a flat area).
Remove the rear wheel and securely fix the car on the stand.
We remove the brake drum and brake pads (How to replace the brake pads of a Nissan Almera car).
Before unscrewing the brake pipe fitting from the cylinder bore with a metal brush, clean the place of their connection from dirt and corrosion and apply an easily penetrating liquid like WD-40 to it.
Remove the cap from the bleed valve.
With a special key for 11 for pipe fittings, unscrew the brake pipe fitting
Remove the tip of the tube from the bore of the cylinder
We put a protective rubber cap on the tube from the brake bleed valve
Using a 10 socket or wrench, unscrew the bolt securing the cylinder to the brake shield
Retrieve the cylinder
Installing the wheel cylinder
Clean rear brake elements
Install the wheel cylinder on the rear brake shield and secure it with the bolt. Bolt tightening torque 14 Nm (1.4 kgf.m)
Remove the plugs from the bores of the wheel cylinder and the brake pipe and screw the union of the brake pipe into the bore of the wheel cylinder. Tightening torque of the fitting 14 Nm (1.4 kgf.m)
Hook the spring of the automatic gap adjustment mechanism to the shoe
Install upper return spring
Install the spring guides while keeping the spacer bar in contact with the brake shield
Check the outer diameter of the brake pads and adjust if necessary
Install the brake drum
Install rear wheel
Bleed the brake system and, if necessary, the hydraulic clutch
Check the effectiveness of the service brake system