Vivid V4 - Brake System Failures; Brake Deflection and Deviation Issues

System Malfunction Possible reason
Trouble
shooting
Brake
System
Brake fail
Master cylinder and/or wheel
cylinder damage, vitta leak oil
Check, eliminate,
change
Brake uid is insucient or empty Add uid
Air enters into oil pipe Let air
Free travel of Brake pedal is too
long or the clearance of arrester
is too big
Adjust
Brake drum wears out or distort Change
Master cylinder leaks oil internally Change
Deected
Running
The pressure of the two front tires
is dierent
Inate
Toe-in is too big or too small Adjust
Tightness of the left and right drum
bearing of front wheels is dierent
Adjust
Brake of one wheel is too tight Adjust or Change
Spring shock absorber is abnormal Change
Front suspension loose Change
Steering shaft or its plastic cover
wear out
Change
Braking
deviation
The clearance of left brake drum
shoe and right brake drum shoe is
dierent
Adjust
Oil one arrester’s brake shoe
Dispose or
change
Tyre pressure is dierent Repair or Change
wheel cylinder’s piston blocks Adjust
Wheel alignment improperly Adjust
Brake drum becomes out of round Change
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