ZONGSHEN ZS125-86 Service Manual page 53

[11] Loosen the nuts on the rear wheel axle, take
out the rear wheel axle and remove the rear wheel
assembly.
Fitting nut
[12] Remove the rear brake friction plate and check
the friction plate for any abrasion. The maintenance
limit is: 2.0mm. Check the brake caliper piston for
its performance. If the brake caliper piston cannot
function properly, the hydraulic brake must be
repaired or replaced.
Check the friction plate
[13] Remove the mounting bolts on rear brake disc
and take out the rear brake disc.
Remove the
mounting bolts
Warning
When rear brake disc is installed , the locking
glue must be applied to the bolts, to avoid the
looseness of bolts.
[14] Check the rear brake disc for any abrasion.
Measure the thickness
of the brake disc
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