10. Use an elongated piece to secure the brake piston,
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slightly press it against the dust seal and blow
the dust seal with compressed air (max. pressure 3bar).
Hitch the snap ring onto the bake piston.
Fixing instructions:
Soak the dust seal and brake piston with brake fluid so that
the dust seal may pass easily.
2.5 Brake components
Inspection and maintenance
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1. Measure the thickness of brake pads.
Measure the thickness of brake pads with a ruler.
Nominal thickness: (17.1)
Minimum thickness: (5.5)
Any brake pads whose thickness is the same as or less than the
minimum thickness or which are severely worn out and
uneven shall be replaced.
2. Measure brake disc thickness
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Any brake pads whose thickness is the same as or less than the
minimum thickness shall be replaced. Any brake disc which
has scratches or abrasion on the surface shall be ground on a
machine tool or replaced.
图中文字:
维修专用工具:Special maintenance tool
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3. Measure the lateral runout of brake disc
(1) Secure the brake disc with 2 wheel hub nuts
Tips: hold the brake disc with a special clamp during measurement.
Torque: (110N.m)
(2) Measure the lateral runout of brake disc 10mm off the outer
rim of the brake disc with a dial indicator. If the lateral runout value
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is bigger or the same as the maximum lateral runout value, then
the axial clearance of the bearing and the lateral runout of the
axle shall be checked. If the axial clearance and the lateral
runout of the axle are normal, then brake disc may be modified
for its lateral runout.