Generic XOR 50 ccm, Service Manual

Page: 100 / 110

100
BRAKES
Complaint
Symptom and possible causes Remedy
Insufficient
brake
power.
Leakage of brake fluid from hydraulic
system.
Worn pad.
Oil adhesion on engaging surface of
pad.
Worn disc.
Air entered into hydraulic system.
Worn shoe.
Friction surfaces of shoes are dirty
with oil.
Excessively worn drum.
Too much brake lever play.
Repair or replace.
Replace.
Clean disc and pads.
Replace.
Bleed air.
Replace.
Replace.
Replace.
Adjust.
Brake
squeaking.
Carbon adhesion on pad surface.
Tilted pad.
Damaged wheel bearing.
Worn pad.
Foreign substance entered into brake
fluid.
Clogged return port of master
cylinder.
Brake shoe surface glazed.
Loose front-wheel axle or rear-wheel
axle nut.
Worn shoe.
Repair surface with sandpaper.
Modify and fitting.
Replace.
Replace.
Replace brake fluid.
Disassemble and clean master cylinder.
Repair surface with sandpaper,
Tighten to specified torque.
Replace.
Excessive
brake lever
stroke.
Air entered into hydraulic system.
Insufficient brake fluid.
Improper quality of brake fluid.
Worn brake cam lever.
Excessively worn shoes and/or
drum.
Adjust
Refill
Replace
Replace
Replace
Leakage of
brake fluid.
Insufficient tightening of connection
joints.
Cracked hose.
Worn piston seal.
Replace or repair
Replace.
Replace.
Brake
drags. 1. Rusty moving parts. replace