Hisun 700UTV - Page 16

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diagnosing and eliminating of malfunction:
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● Emission of black smoke for abrasion of cylinder
or piston,
1. Cylinder , piston of piston ring is worn out.
2.The piston ring is not properly assembled.
3. The piston or cylinder wall is scraped.
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● overheated
overheated overheated
overheated
1、 Excessive incrustation of piston.
2、Blast and abnormal noise.
3、Abrasion of cylinder or piston.
Inspection of cylinder.
1.Check whether the cylinder is damaged.
2.Measure the bore diameter of cylinder at three spots.
3.At the top,the middle and the bottom of the piston
stroke .And measure the bore diameter at directions of
right-angle intersection.
repairing limit value:
out of roundness: 0.005 mm
taper ：0.005mm
Inspection of piston and piston ring
Measure the gap between piston ring and piston groove.
1.unplug the piston ring;