Drum Brake-Drum; Brake Ling - Sym FIDDLE 125 Service Manual

13. BRAKE

DRUM BRAKE-DRUM

Brake Drum
Removal
Use a vacuum cleaner and other suitable
tools to clean the brake parts to minimize
the hazard caused by the dust.
Caution
•Inhaling dust may cause respiration
system disorder even cancer. Never
use an air hose or a dry brush as to
clean the brake parts.
•Grease on brake lining will reduce
braking efficiency.
Remove wheel. Remove brake drum from
wheel hub.
Inspection
Check the brake drum for wear and damage,
replace wheel hub if necessary
Measure the ID of hub at several points and
record the largest value.
Service limit : 131.0 mm
Caution
•Remove the rust by using #120 sand
paper.
•An inside micrometer must be used
when measuring ID of brake drum
because the brake drum has a friction
back plate.
BRAKE LINING
Inspection
Measure the thickness of the brake lining at
three points (both ends and center).
If the thickness is less than specified, or if it is
contaminated by oil or grease, replace as a
set.
Service limit : Front 2.0 mm
Rear
13-12
2.0mm
Front brake drum
Rear brake drum
Front
Brake
lining
Brake lining
SYM