REPLACING CALIPER SEALS

(wearing nitrile gloves is recommended)

IMPORTANT: DO NOT USE PETROLEUM, GASOLINE, OR MINERAL OIL BASED CLEANERS OR LUBRICANTS AS THESE WILL DAMAGE THE SEALS.

1. Soak new seals in brake fluid for a minimum of 30 minutes.

2. Clean caliper with warm soapy water and dry off.

3. With the pads removed, insert a brake disc or block into the center of the caliper. Using either hydraulic pressure or compressed air, carefully extend all pistons against the disc or block. Remove block and remove pistons.

4. Carefully remove old seals with a narrow blunt-edged tool. A dull pick works best.

5. Ensure that caliper bores, seal grooves and pistons are clean and free from debris and moisture. Cotton swabs work well here. Use only alcohol-based cleaning fluid.

6. Carefully fit replacement seal into groove in caliper body. Check seals are free from damage and correctly seated in groove, not twisted or kinked. If using angle cut seals, ensure paint dots are facing away from disc.

7. Wipe the outside of the piston with a small amount of brake fluid for extra lubrication. Carefully engage piston into caliper bore and, using your fingers, push pistons fully into body.

NOTE: Excessive force should not be necessary. If piston does not slide smoothly into bore, remove & check that seal has been fitted correctly.