1, the use of the unit, the newly purchased, homemade or repaired steel plate pliers before use, should be checked by full-time personnel according to the corresponding provisions of this system to determine whether it can be put into use. The user unit shall establish a ledger for the steel plate lifting pliers put into use and carry out numbering management.

　　2, daily users of steel plate pliers for regular (including before use, use interval time) visual inspection, when found by the impact of stable performance defects, should stop the use, and according to the regular inspection requirements for inspection.

　　3, the use of units to carry out a regular inspection every month. The using unit should designate full-time personnel to evaluate the steel plate hoist according to its technical requirements and make inspection records.

　　4. The manufacturing department conducts a regular inspection every six months. According to the technical requirements of the steel plate hoist, the instrument is used for thorough inspection and evaluation. The inspection record shall serve as the basis for further inspection, maintenance or scrap.

　　5, regular inspection and regular inspection should include the following:

　　(1) Mark whether it is lost, damaged or its content is not clearly identified due to non-destructive.

　　(2) bolts, nuts and other fasteners are loose.

　　(3) Wear, corrosion, cracks, plastic deformation and other abnormal conditions of the main stress components of metal structures.

　　(4) The main parts, such as hook, lifting lug, reel, wire rope and rope end fixed connection, clamping spreader clamp arm (including claw, lifting teeth), open gear, roller chain wear, corrosion, plastic deformation, cracks and other abnormal conditions.

　　(5) Wear, corrosion, plastic deformation, crack, broken wire, melting, scorching and aging of fiber products of sling chain, wire rope (including fiber, sling and cable eye end fixed connection) and end accessories.

　　(6) During regular inspection, it is necessary to use magnetic powder, penetration and other methods to detect the main parts of the crack inspection: hook (including the withdrawal slot at the end of the straight handle hook); Lifting liquid metal hook beam lifting lug, plate hook mandrel; Shenggang (iron) drum trunnion (including weld).

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