Precautions checking crane components

1, hook: Check marks and  eot crane  hook retaining device meets the requirements, hook cracks, delamination and other defects; hook wear section, the opening degree of the increase in the amount of torsional deformation is exceeded; hook neck department and whether the surface fatigue deformation, cracks and associated pin, sleeve wear.
2, wire rope: Check the wire rope specifications, models and matching reel pulley meets the design requirements. Rope fixed end plate, Shengka, wedge blocks, etc. rope fixtures meet the requirements. Rope wear, broken wires, kinking, flattening, bending, off shares, corrosion, etc. are exceeded.
3, brakes: brake settings,overhead gantry crane brake type meets the design requirements, the brake lever, the spring without fatigue deformation, cracks and other defects; pins, spindles, brake wheel, brake linings for wear exceeded, hydraulic brake oil leaks; brake gap adjustment, braking capacity can meet the requirements.
4, reel: reel body, tube edge without fatigue cracks, damage, etc.; rope groove and the cylinder wall wear is excessive; drum flange height and rope winding layers can match; guide rope, rope Operating with compliance requirements;
5, pulleys: Is there a retaining rope pulley groove means; pulley rope groove, rim cracks, broken edges, such as excessive wear, pulley rotation is flexible.
6, Gearhead: Gearhead machine is running without intense metal friction sound, vibration, radiation and other unusual sound shell;bridge gantry crane shaft is sealed intact, loose bolts and other conditions have defects; gear lubricant selection, the oil surface height, vertical reducer oil pump is running, open gear lubrication compliance.
7, the wheel: the wheel tread, axle whether fatigue crack phenomenon axle wheel tread wear is excessive. Are there eating track running phenomenon. Caused by gnawing track what is the reason.