KEEWAY RKV125 Instruction And Maintenance Manual page 141

Measure piston pin hole ID.
Allowable limit: 14.04mm.
Measure piston pin OD.
Allowable limit: 13.96mm.
Measure the clearance between piston pin hole and piston pin.
Allowable limit: 0.05mm.
Measure piston OD
* Attention: Measuring position forms a 90° angle with
piston pin, about 11mm below piston skirt.
Allowable limit: 56.93mm.
Inspect wear and scratch on inner wall of cylinder.
* Attention: Measure cylinder ID at three positions, i.e.
upper, intermediate and lower positions. The position forms
a 90° angle with piston pin.
Allowable limit: 57.1mm.
Measure the clearance between cylinder and piston. Take the
maximum clearance as standard.
Allowable limit: 0.17mm.
3
Tester
1
2
3
90°
11mm
Testing gauge