Generic Trigger SM 50ccm, Owner'S Manual

Page: 92 / 122

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Measure the bore diameter of the piston pin hole.
Allowable limit ： 12.04mm 。
Measure the outer diameter of the piston pin.
Allowable limit ： 11.96mm 。
Measure the outer diameter of the piston.
Note ：
The measuring position and the piston pin form an
angle of 90 degree, some 15.5mm below the skirt of
piston.
Allowable limit
：
40.20mm
。
Clearance of the piston pin hole and piston pin.
Allowable limit
：
0.08mm
。
Inspect the abrasion and wear of the cylinder inner wall.
Note
：
Measure the bore diameter of the cylinder at the
upper, middle and lower part when keeping an angle
of 90 degree from the piston pin.
Allowable limit
： 40.3mm 。
Measure the clearance of the cylinder and piston and take the
maximal value as final one.
Allowable limit ： 0.1mm 。
Testing
gauge of air
cylinder