ATV 250 Service Manual page 85

4.Check
Friction wafer:polish the surface needing
polishment with rough sand paper.
5.Measure
Thickness of friction wafer of brake: if it does
not conform to specified thickness, replace it .
Attached:
Thicknes of friction wafer of brake:4.0mm
Wear limit :2.0mm
Caution
¢Ù
If the worn thickness of any part of friction
wafer exceeds the wear limit specification, it
is needed to replace the brake shoe in set.
(including brake shoe spring¢Ù)
6.Check
Brake shoe tension spring ¢Ù :If worn or
damaged, replace it.
7.Measure:
Inner diameter of front brake hub ( @as shown
in figure):
If it does not conform to specification,replace
it .
Attached:
Inner diameter of front brake hub:160mm
Wear limit:161mm
8.Check
If there is engine oil or scrape on the inner
surface of brake hub, eliminate them.
¢Ù Elimination of engine oil :wipe off with cloth
immersed in volatile diluent or volatile solvent.
¢ÚElimination of scrape:wipe it off with
carborundum cloth forcedly and evenly until it
disappears.
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