Brake Pads Maintenance; Air Bleeding The Brake Fluid Circuit - Suzuki RG250 Service Manual

2-15 PERIODIC MAINTENANCE AND TUNE-UP PROCEDURES
BRAKE PADS
Wearing condition of brake pads can
be
checked
by observing the limit line
CD
marked on the pad .
When the wear exceeds the limit line, replace the
pads with new ones. (See page 7·3 and 7-34)
AIR BLEEDING THE BRAKE FLUID
CIRCUIT
Air trapped in the fluid circuit acts like a cushion
to absorb a large proportion of the pressure de-
veloped by the master cylinder and thus interferes
with the full brak ing performance of the caliper
brake. The presence of air is indicated by "spongi-
ness" of the brake lever and also by lack of braking
force. Considering the damper to whicb such
trapped air exposes the machine and rider, it is
essential that, after remounting the brake and
restoring the brake system to the normal condi-
tion, the brake fluid circuit
be
purged of air in
the following manner;
• Fill up the master cylinder reservoir to the
upper of inspection window. Replace the reo
servoir cap to prevent entry of dirt.
• Attach a pipe to the caliper bleeder valve, and
insert the free end of the pipe into a receptacle.
Bleeder valve
tightening torque
7 - 9 N'm
(0.7 - 0.9 kg-m)
• Front brake: Bleed the air from caliper as fol·
lowing order.
CD
Left cali per -
®
Right caliper
,