KEEWAY Focus, Maintenance Manual

Page: 18 / 115

18
WARNING
： ： ： ：
Brake fluid, if it leaks, will interfere with safe running and immediately discolor painted surfaces.
Check the brake hoses for cracks and hose joints for leakage before riding.
Brake pads
Wearing condition of brake pads can be checked by observing the limit
Line
①
marked on the pad. When the wear exceeds the limit mark, replace
The pads with new ones.
Bleeding air from the brake fluid circuit
Air trapped in the fluid circuit acts like a cushion to absorb a large
proportion of the pressure developed by the master cylinder and thus
interferes with the full braking performance of the brake caliper. The
presence of air is indicated by “sponginess” of the brake lever and
also by lack of braking force. Considering the danger to which such
trapped air exposes the machine and rider, it is essential that, after
remounting the brake and restoring the brake system to the normal
condition, the brake fluid circuit be purged of air in the following manner:
Fill up the master cyliner reservoir to the upper end of the inspection
window. Replace the reservoir 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.
□
Bleed air from the bleeder valve.
Squeeze and release the brake level several times in rapid succession. And squeeze the lever fully without
releasing it. loosen the bleeder valve by turning it a quarter of a turn so that the brake fluid runs into the
receptacles: the will remove the tension of the brake lever causing it to touch the handlebar grip. Then, close the
valve, pump and squeeze the lever, and open the valve. Repeat the process until the fluid flowing into the
receptacle no longer contains air bubbles.