Rato R1000I, Руководство по обслуживанию

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Piston
Piston skirt outer diameter
Measure the OD of the piston skirt with an OD
micrometer, to replace it if it exceeds the service
limit.
The clearance of Piston Pin Hole and Piston Pin
Use the inside micrometer and the outside
micrometer to measure the inner diameter of the
piston pin seat hole and the outer diameter of the
piston pin respectively. Then calculate its gap
value based on measurement results. If the
operating limit is exceeded, replace the piston or
piston pin according to wear condition.
Standard Use limit
See Table 1-3 See Table 1-3
Piston - cylinder clearance
The difference between maximum diameter of
the cylinder and the diameter of piston skirt is the
piston-cylinder gap. When inspecting, put the
piston upside down in the cylinder, put the
thickness gauge of suitable thickness between
the pressure-bearing face of piston skirt and the
cylinder wall, and then draw out the thickness
gauge. If feeling certain resistance, but it can be
drawn out smoothly, the thickness of the gauge
is the gap between the cylinder and the piston.
Standard Use limit
See Table 1-3 See Table 1-3
Piston ring side clearance
When checking, place each ring in its respective
piston ring groove. Piston rings shall rotate freely,
to be neither loose nor sluggish. Then insert the
thickness gauge into the gap between upper and
lower planes of the ring and the groove to
measure.
Standard Use limit
See Table 1-3 See Table 1-3
Standard Use limit
See Table 1-3 See Table 1-3