Gilera SATURNO BIALBERO 350 Workshop Manual page 106

BRAKES 15
Front brake calliper inspection
Remove the calliper from the leg.
Remove the calliper assembly bolts.
Remove the two pistons (fig. 7). If necessary, use compressed air (with
short bursts) in the fluid inlet hole to push out the piston.
Check cylinders and pistons for scratches and pitting; replace if necessary.
Remove the seal rings starting with the inner one.
Measure the piston's outer diameter (fig. 8).
Wear limit: 31.94 mm
Mount the calliper in reverse order of disassembly.
The seals must be replaced at every disassembly.
Lubricate the pistons with brake fluid prior to installation; fill with brake fluid
and bleed the system.
Rear master cylinder inspection
Drain the brake fluid.
Remove the master cylinder and its metal protection.
Remove the rubber protection.
Remove the retainer ring from the master cylinder (fig. 9).
Remove the piston and measure the piston's outer diameter (fig. 10).
Wear limit: 12.94 mm
Make sure the piston seals aren't damaged.
Lubricate all components with brake fluid prior to assembly.
Install all components in the master cylinder; mount the master cylinder.
Fill the hydraulic circuit with brake fluid and bleed the system.
Rear brake calliper inspection
Disassemble the calliper using the same procedures as with the front
calliper (fig. 11).
Measure the piston's outer diameter (fig. 12).
Wear limit: 31.94 mm
Assemble the calliper using the same procedures as with the front calliper.
Fill the hydraulic circuit with brake fluid and bleed the system.
15 – 1,3