Doosan GV158TIC, Руководство по эксплуатации и техническому обслуживанию

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Disassembly and Reassembly of Major Components - 71 -
4) Piston side clearance
●
Assemble the piston ring at the piston.
●
Measure the each ring's side clear-
ance and if the measured value
exceeds the limit value, replace rings
or piston.
<Piston side clearance>
5) Piston pin
●
With the outside micrometer, measure
the piston pin's outside diameter and if
the value is same as the use limit
value or less, replace it.
6) Piston pin and connecting rod bush
clearance
●
Inspect the clearance between the
piston pin and the connecting rod
bush, if it is more than the use limit
value, replace either one that is more
severe.
EA0M4032
Feeler gauge
Division Specified value
Limit
value
Top ring 0.095 ~ 0.145 mm 1.5 mm
2nd ring 0.050 ~ 0.082 mm 1.5 mm
Oil ring 0.03 ~ 0.07 mm 1.5 mm
EA0M4031
Standard Limit
ø45.994 ~
ø46.000 mm
ø45.983 mm or less
EA3M2047
Standard Limit
0.055 ~ 0.071 mm 0.1 mm