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Common Faults of JS sereis Twin Shaft Concrete Mixer and Treatments

JS3000 twin Concrete mixer

There are kinds of common faults that may occur in JS series twin shaft concrete mixer. The followings are six of them introduced by Bona.
 
1.The sudden stop of stirring shaft.
   1. Serious overload. The user should adjust the weight of charging materials and discharge the excessive materials.
   2. There are big materials between the inner wall of the mixing drum and the mixing blade or side of the blade. The users should get rid of materials and adjust the gap Again.
   3. The belt of the electric motor is too loose. The user should adjust the tension device and tighten the belt.
 
2.The strange noise when mixing.
   The too large gap between the inner wall of mixing drum and mixing blade or scraper blade. 
   The user should adjust the gap to the requirement.
 
JS1500 twin shaft concrete mixer
3.The loud noise of gear box.
   1. There are materials in the gear box. The user should clean up the material, repair and renew the damaged parts.  
   2. The damage of bearing. The user should change a new one.
 
4.The high temperature of gear box.
   1. The viscosity of oil is too high or too low. The user should release the old oil and add new oil. 
   2. The damage of bearing. The user should change a new one.
 
5.The temperature of mixing shaft on both ends of mixing drum is too high. 
  1. The damage of bearing. The user should change a new one.
  2. The insufficiency of oil supply. The user should add lubricating oil according to the requirement. 
 
6.The mortar leakage of shaft end.
   The damage of the floating seal. The user should renew it. 



 
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