Handlebar Steering Astrayed When Running; Front, Rear Damper Not In Balanced; Brake Disorder - PGO PMX Sport 50 Service Manual

6.Handlebar steering astrayed when running.

Trouble condition
Handlebar operates heavily
Front and rear wheel swings
Handlebar astrayed to one direction

7.Front, rear damper not in balanced

Trouble condition
Damper is too soft
Damper is too heavy
Damper has abnormal noise

8.Brake disorder.

Trouble condition
Brake plate"△"mark
points
Noise when brake
Faulty performance
(front and rear wheel pressure are normal)
•steering column lock nut locked too
tightly
‚steel ball cracked
•rear, front wheel bearing swings
‚front, rear wheel rim distorted
ƒfront axle nut is loose
•front and rear wheel center not well-
aligned
‚front fork crooked
(front and rear wheel pressure is normal)
•damper spring is too soft
‚carrying weight is too large
ƒdamper oil leakage
•front fork guide rod crooked
‚damper and damper cover cracked
•problems in damper tube and spring
‚damper and damper cover cracked
The reason
(adjustment according to standard procedure)
•brake lining worn-out
‚bake lining cam worn-out
ƒbrake cam worn-out
„brake hub worn-out
•brake lining worn-out
‚Alien material attached on brake lining
ƒContact surface of the wheel hub becomes
rough
•brake cable over stretching or moving
unsmoothly
‚brake lining contacting surface not
evenly
ƒwater or sand drop into brake system
„some grease on brake lining surface
The reason
The reason