Generally,Yishui Zhongxin Machinery Will replace or repair defective articles for free within a year from time of the delivery.This warranty doesn't cover damages caused by the use of defective articles, worn out articles,wrong use of the articles,non-observance of both above mentioned general instructions for first installation and warning and safety measures for dumper,as well as obvious tampering of articles. 
Zhongxin's obligation is subject to confirmation of the claim by our inspection department and is limited to the repair or replacement of the part.
Warranty Procedures
1.Description of failure
2.Cylinder model and manufacturing date as laser engraved on all cylinders
3,Invoice number and date.

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