Dual Piston Caliper

Fig. 1 Pistons, removing
Press pistons out individually with compressed air

CAUTION: Place a wooden block in the cylinder housing to prevent damage to the piston. Use only enough air pressure to force pistons out.
Only one piston at a time can be pressed out. Secure second piston with US 1023/4 or equivalent.






Fig. 2 Piston seals, removing
Pry seals out carefully without damaging cylinder bore






Fig. 3 Pistons, installing
Slide dust boot onto piston






Fig. 4 Pistons, installing
Lubricate piston and cylinder bore lightly with brake cylinder paste
Install piston and insert inner lip of dust boot into groove in brake cylinder






Fig. 5 Pistons, installing
Center tool on piston and press in

CAUTION: Outer lip on dust boot must slip into groove in piston.