Bridge crane all electrical equipment enclosure should be grounded. If the car is not welded to the main beam track Hand pallet jacks be taken when welding ground measures . Ground wire cross-sectional area greater than 75mm2 available galvanized flat iron or bare copper or greater than 10mm2 30mm2 galvanized round . Cab or crane body ground position should be more than two . Any point on the crane to the power between the neutral point grounding resistance scissor pallet truck be less than 4Ω.
to have regular safety technical inspection , good pre- preparatory work .
Troubleshooting Maintenance
Leak repair protection
Bridge crane trolley gear due to vibration, abrasion , pressure, temperature and other factors, the combination of surface sealing parts often appear static leakage . Traditional treatment methods to remove reducer, replacing gaskets or sealant applied , but time-consuming and difficult to ensure the sealing effect , will appear again in the operation of leakage. Contemporary Western countries use more polymer composites leakage field of governance , the most widely Blessed World Blue series. Polymer -free disassembly repair and materials have excellent adhesion, oil resistance and 350% elongation , good to overcome the impact of vibration reducer , repair effect is more effective than traditional methods .
没有评论:
发表评论