Removing
1. Remove Teflon rings (9) with grooves in the front cover.
2. Install the puller (020) on spring bushing (13) and squeeze it until the retaining ring (15) will not be released.
3. Remove retaining ring (15).
4. Remove the puller (020).
5. Remove the lock plate (13) and return spring (14) from piston LB3 (12).
6. Remove the piston.
Installation
1. Check radial o-rings (16) And (17) and, if necessary, replace them.
2. Install radial o-rings (16) And (17).
3. Install bushing (024) on the front cover (10).
4. Lubricate the mating surfaces of the O-rings.
5. Install piston LB3 (12).
6. Remove bushing (024).
7. Attach the return spring (14) and spring bushing (13) piston LB3 (12).
8. Install and secure the puller (020) to the spring bushing.
9. Install retaining ring (15).
10. Loosen and remove the puller (020).
11. Install Teflon rings (9) grooves in the front cover. Make sure they are installed correctly. If necessary, replace them with the same, but smaller diameter.