HYOSUNG MS3 125, Руководство по обслуживанию

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ENGINE 3-26
18.980 mm
(0.7472 in)
0.10 ~ 0.30 mm
(0.004 ~ 0.012 in)
0.20 ~ 0.32 mm
(0.008 ~ 0.013 in)
0.35 ~ 0.50 mm
(0.014 ~ 0.020 in)
0.20 ~ 0.32 mm
(0.008 ~ 0.013 in)
8.0 mm (0.315 in)
6.8 mm (0.268 in)
5.7 mm (0.224 in)
4.6 mm (0.181 in)
14.980 mm
(0.5898 in)
▣ ▣
PISTON RING FREE END GAP INSPE-
CTION
Before installing piston rings, measure the free end
gap of each ring using vernier calipers. If the gap is
less than the service limit, replace the ring.
▣ ▣
PISTON PIN DIAMETER INSPECTION
Using a micrometer, measure the piston pin outside
diameter at three position, both the ends and the
center.
If any of the measurements is founds less than the
service limit, replace the pin with a new one.
Micrometer(0~25 mm) : 09900-20201
Vernier calipers : 09900-20101
Piston
pin
diameter
Service limit
1st
2nd
Piston ring
free end gap
Service limit
▣ ▣
PISTON RING END GAP INSPECTION
(Assembly condition)
Insert the piston ring squarely into the cylinder using
the piston head.
Measure the end gap with a thickness gauge.
If the gap exceeds the service limit, replace the pis-
ton ring with a new one.
1st
2nd
Piston ring
end gap
(Assembly
condition)
Standard
Piston ring end gap(Assembly condition)
1st
2nd
Service limit
0.5 mm (0.020 in)
0.5 mm (0.020 in)
Thickness gauge : 0990-20806