The first common fault of twin shaft compulsory concrete mixer: the mixing shaft of twin shaft compulsory concrete mixer does not work:Henan Daswell Machinery Co., Ltd,is a professional manufacturer and trader specializing in the research, development and production of construction machinery for nearly 30 years. Our main products are as follows:diesel concrete mixer,self loading mobile concrete mixer,etc. We will provide you with the best product and service. The reasons of the fault are: 1. Twin shaft compulsory concrete mixer seriously overload. Then concrete mixer users need to readjust the quantity of material and unload excess material; 2. Between mixing blades or side-entry blades and inside wall of mixing tank concrete pump, there is big foreign body. Then concrete mixer users need get rid of the foreign body and readjust the gap; 3. The belt of the motor is too loose. Then concrete mixer users need to fasten the belt; The second common fault of twin shaft compulsory concrete mixer: there is abnormal sound when concrete mixer is working: The reason of the fault is: the gap between mixing blades or scraper and the inside wall of mixing tank is too large. So concrete mixer users need to adjust the gap to the specified requirements; The third common fault of twin shaft compulsory concrete mixer: the reduction box of concrete mixer has serious noise: The reasons of the fault are: 1. There is foreign body in mixing box. It is necessary to remove the foreign body and repair or replace the damaged parts; 2. The bearing is damaged mobile concrete mixer, and then users need replace the damaged bearing with one new bearing.