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and refilled. Refer to the vacuum filling
method of brake fluid in the next section.
If the brake fluid in the front and rear brake
cylinders is exhausted, use a vacuum
pump to pump air at the brake caliper body
bleeder nozzle, and then fill the cylinder.
Refer to the vacuum filling method of brake
fluid in the next section.
Vacuum filling method of brake fluid:
This method is applicable to the filling of
brake fluid in a new car or when the brake
fluid in the brake cylinder is exhausted.
1. Use a vacuum pump to pump air at the
brake caliper body bleeder nozzle.
Front brake caliper body
Rear brake caliper body
2. Open the brake cylinder cover and fill the
brake fluid.
3. Operate the brake handle or pedal to
remove the residual air of the brake
caliper.
4. When the vacuum pump has completely
eliminated the air in the brake caliper and
the brake fluid, squeeze the handle or step
on the pedal tightly, and quickly tighten the
vent nozzle bolt. The tightening torque
range is between 7 ~ 9 Nm.
5. Install the brake cylinder cover. The
gasket should be flat during installation. If
necessary, replace it with a new one.
6. After filling, check the oil cup, hydraulic
brake hose and all connecting parts for oil
leakage.
Note:
1. The brand of brake fluid is DOT4 non
petroleum base brake fluid.
2. The brake fluid shall not be mixed
with other impurities, otherwise chemical
changes will occur and the braking
performance will be reduced.
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