Brake Caliper Piston, Removing And Installing: Removing
-- Remove the brake caliper. Refer to BRAKE CALIPER, REPLACING .
-- Remove the brake pads. Refer to BRAKE PADS, REMOVING AND INSTALLING .
-- Tension the brake caliper in a vise with protective covers over the jaws.
Make sure that the paint coat on the brake caliper is not damaged when removing the brake caliper pistons and the protective caps.
-- To prevent damage to the brake caliper paint coating, place a piece of rubber between the Piston Resetting Tool: T10145 and the brake caliper.
Leaking brake fluid increases the risk of injury.
Irritation and injury to the skin and eyes are possible.
- Wear protective eyewear.
- Wear safety gloves.
-- Place a cloth over the brake caliper chamber to catch any spraying brake fluid. Place another cloth tightly around the compressed air gun nozzle on the brake caliper.
Risk of injury due to sudden release of the brake caliper piston when pressing out.
- Never reach with the fingers into the brake caliper opening.
-- Use the Piston Resetting Tool: T10145 -A- to hold the opposite brake caliper piston in the brake caliper -1- as shown.
-- Block the other brake caliper pistons using wooden blocks -C-, for example. Also place a protection -B- in front of the Piston Resetting Tool: T10145 so that the brake caliper piston does not become damaged when being pressed out.
-- Position the nozzle of the compressed air gun -D- at the hole for the brake hose. Use compressed air to push the brake caliper piston -3- out of the brake caliper.
-- Carefully pry the protective cap -4- out of the brake caliper -1-. While doing so, do not damage the groove in the brake caliper for the protective cap.
-- To do so, use the REMOVAL TOOL: T40338 or a suitable screwdriver. Remove the protective cap by using gentle lever movements.
-- Remove the seal -2- using the Release Tool: T10498 .
-- When removing, make sure that the cylinder surface is not damaged.
-- Repeat the procedure for the other brake caliper pistons.