1.The operating mechanism of winch should be flexible and reliable,easy to operate and safety.
2.Each seal parts of winch not have oil spills.
3.Winch operation should be smooth and no abnormal sound and vibration.
4.Before assembly, all parts (including purchased parts, standard parts) must be tested and qualified to be used.
5.The parts should be cleaned in a cleaning environment.
6.The maximum oil temperature during winch operation should not exceed 80 ℃.
7.The brake contact area of winch brake should not be less than 80%.
8.The parts are coated with phenolic primer,the body of machine should be painted according to the requirements of the contract, paint appearance is supposed to be smooth,complete without the defects of brush marks peeling, accumulation and blistering and so on. The adhesion of paint will be checked with grid and coating on the edge of the grid or incision at the cross is not allowed to be dislodged or part dislodged,the dislodged area should not be more than 15%.