The abnormal sound of the brake
1. Wear of the brake shoe block and friction plate component
2. The brake shoe block and friction being polluted
5.3 Front hydraulic brake
5.3.1 Removing
*Note
•The change of the friction plate component.
•If a friction plate will be used again, it should be
marked at its side in order to be installed back to the
original position.
Remove the following components from the right handle
and front shock absorber, respectively:
1.hydraulic brake handle（17）
2.oil pump body component（1）
3.brake hose assembly（12）
4.brake cylinder component（24）
5.front brake disc（22）
Note: referring to detail decomposition view on page
77
*Note
•When installing and removing, the brake shoe block can not be stained with grease.
•The brake should be cleaned with specific cleaning agent to avoid the degradation of the brake performance.
Loosen the brake cylinder component fixing bolt.
Remove the brake cylinder component from the front shock
absorber.
Remove the front wheel axle.
Remove the front wheel.
Remove the brake disc from the front wheel.
5.3.2 Check
Check whether the friction component have been worn
out and change the shoe block if needed.
Measure the friction plate component, front brake disc and
record the maximum value.
Specification
QJ50T-21T front brake disc diameter φ 190mm
Front brake disc thickness 4mm
*Note
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