Daily maintenance of double-beam bridge cranes
1. Check the wear of the brake pad lining of the double-beam bridge crane. The wear should not exceed 50%, and the contact area between the lining and the brake wheel should not be less than 70%; check the installation and fixation of each pin shaft and the wear and lubrication condition;
2. Check whether all bolts of the double-beam bridge crane are loose and short;
3. Check the bolt tightness of the base of the motor, reducer, etc. of the double-beam bridge crane, and tighten them one by one;
4. Check the lubrication condition of the reducer. The oil level should be within the specified range, and measures should be taken to prevent leakage at the oil leakage part;
5. Lubricate the gears;
6. Check the wear of the wire rope at the balance pulley, and lubricate the pulley and pulley shaft;
7. Check the pulley condition to see if it is flexible, whether there is damage or cracks, and pay special attention to the wear of the fixed pulley shaft;
8. Check the brake wheel. The unevenness of its working surface should not exceed 1.5mm. The brake wheel should not have cracks and its radial runout should be less than 0.3mm;
9. Check the running conditions of the large and small vehicles. There should be no gnawing of rails, three fulcrums, torsion when starting and stopping. Check the wear of the wheel rim and tread. The wear of the wheel rim thickness should not exceed 50% of the original thickness, and the wear of the wheel tread should not exceed 3% of the original diameter of the wheel;
10. Check whether the cable bracket and small pulley of the double-beam bridge crane are damaged or blocked;
11. Keep the contactors, fuses, switches, etc. on the control panel of the power box clean to prevent leakage breakdown and short circuit;
12. Lubricate all parts of the vehicle.
