The hoist should meetJC460.1In accordance with this standard, and manufacturing, installing, and using it as per approved design drawings and technical documents in accordance with the prescribed procedures. For technical requirements not specified in the drawings and technical documents, the general standards of the building materials machinery and electromechanical industries, and related fields shall be followed.

tolerances not specified on the drawing should conform toGB1804Regulations specify, with mechanical processing surfaces being...tT13Grade; Welded parts with non-machined surfacesIT16Grade; Non-machined surfaces of forging partsIT15Level Manufacturing.

Weldments must comply with the relevant regulations for construction machinery welding.

Gray iron castings should comply withGB 9439No Chinese content provided.

Forgings must be free from defects such as laminations, folds, cracks, surface defects, scabs, and inclusions.

The hoist should be equipped with a level indicator, a speed monitor, and a private anti-drift device.