SWM SM 500 R E4 2018 Manual - Uso - Mantenimiento página 136

REAR BRAKING SYSTEM BLEEDING
The braking system must be bled after the fluid
replacement or when, due to air in the circuit, the
pedal stroke is long and spongy.
To bleed the system:
- Remove the reservoir cover (A) (21 mm wrench)
rubber boot and top up with (DOT 4) brake fluid.
- Attach a clear plastic hose to the bleed valve
(1) on the caliper and turn the other end of the
hose into a container.
A
EN - 58
- Depress the pedal (2) and keep it full down.
- Loosen the bleed union letting out fluid (at first,
only air will come out), then, closing the union
slightly.
- Release the pedal and wait for a few seconds
before repeating the operation until only fluid
come out of the tube.
- Close the bleed union to the prescribed torque
and check the fluid level (B) inside the reservoir
before reassemblle the cap (1).
If the bleeding operation has be done correctly, the
pedal will have no mushy feel. If not, repeat the op-
eration.
Note*: If following falls or repairs, the brake lever or
pedal stroke is stretchy resulting in reduced brak-
ing efficiency, repeat circuit bleeding as described
above.
WARNING*:
During the bleed operation the fluid level inside
the reservoir must never be lower than the mini-
mum level.
Tightening torque for bleed valve is 1,2 ÷ 1,6 kgm
(12 ÷ 16 Nm; 8.8 ÷ 11.8 ft-lb).
1
B
2