Master Cylinder - Except Grand WAGONEER: Reassembly

1. Lubricate new reservoir grommets with clean brake fluid and press into master cylinder. Ensure grommets are properly seated. Lay reservoir on flat, hard surface. Rock master cylinder body onto reservoir until completely seated.
2. Lubricate new piston seals with clean brake fluid and install on secondary piston, with lip of seals toward ends of piston. Install spring retainer.
3. Install secondary piston spring and secondary piston assembly in master cylinder. Lubricate primary piston seals with clean brake fluid.
4. Install primary piston in master cylinder. Press in piston and install snap ring. Fit diaphragm in reservoir cover and install cover.

Fig 1: Exploded View of Quick Take-Up Master Cylinder

Courtesy of GENERAL MOTORS CORP.