Disassembly and assembly of the front wheel brake mechanism of the ATE brand (Opel Kadett E)

Disassembly

Remove the brake pads. Clamp the caliper assembly in a vice with soft pads.

Disconnect the caliper from the brake shoe guide.

Clamp the caliper in a vice with soft pads and remove the protective cap retaining ring.

Remove the dust cap from the caliper.

Using a jet of compressed air through the fluid inlet, push the piston out of the cylinder, placing a 15-20mm thick wooden plank between the caliper and the piston to avoid damaging the piston.

Remove the protective cap from the piston.

Use a plastic wedge to remove the sealing ring from the groove in the working cylinder bore in the caliper.

Wash the parts in alcohol or brake fluid and check their condition.

Assembly

Lubricate the parts with brake cylinder paste.

Install the protective cap into the piston groove.

Install the sealing ring into the groove of the cylinder bore.

Lubricate the piston with a thin layer of brake cylinder paste.

Insert the piston into the cylinder bore without pushing it all the way in.

Insert the dust cap into the groove of the caliper.

Clamp the shoe guide in a vice with soft pads and install the pressure springs.



Place the caliper on the brake shoe guides, compressing the pressure springs.



Check and, if necessary, adjust the piston position.

Push the piston all the way into the working cylinder and install the retaining ring and finally seat the protective cap in the groove of the caliper.

Install the brake pads.