GAS GAS EC FSE 400, Руководство по ремонту

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Inspection and maintenance
77
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Free piston ring end aperture and
piston ring end aperture
First measure the piston ring free end aperture
with the calliper and then place the piston ring
transversally in the cylinder and measure the
aperture of the ring end with the thickness gauge.
Tool ref.:
Thickness gauge
DATA
Aperture of the free piston ring end
(Fig. 4)
Service limit:
1º: 5.5 mm
2º: 9.2 mm
Tool ref.:
Thickness gauge
DATA
Aperture of the piston ring end (Fig. 5)
Service limit:
1º: 0.50 mm
2º: 0.50 mm
Piston bolt holder and bolt interior
diameter
Measure the piston bolt holder diameter with a
small calliper. If the diameter surpasses the service
limit, replace the piston with a new one.
Tool ref.:
Cuadrant gauge (1/1,000 mm)
Tool ref.:
Small calliper (18-35 mm)
DATA
Piston bolt holder interior diameter
Service limit: 20.030 mm
Measure the piston bolt holder exterior diameter
in three places, with the micrometer. If any of the
measurements surpasses the service limit, replace
the piston with a new one.
Tool ref.:
Micrometer (0-25 mm)
DATA
Piston bolt exterior diameter
Service limit: 19.980 mm
Fig.4
Fig.5
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