Routine maintenance problems of friction rollers : the friction roller maintenance technology there are two main problems are complex :
1 , when the oil change .
2 , how much oil should be changed . If too little oil changes , bearings will be early retirement ; If oil change too much, it will mess up the friction roller or long-term harmful power coil and wire .
Second, the maintenance technician friction idlers : decide when to stop and when lubricating grease the way is very simple: to develop a baseline , develop schedules and oiling observed when monitoring.
1 , to develop a baseline friction roller baseline reflected in normal operation, no visible errors, decibel intensity sufficient lubrication conditions. Develop a baseline of three ways :
1 ) , Comparative Law : If you have more than one of the same type of friction rollers, these bearings can put them together . A test using the same method or from the same angle to observe each bearing . Analysis decibel intensity and sound quality . If there is no essential difference ( less than 8 db ) , we can put it as the basis for decibel intensity of each friction roller .

2 ) , add the oil when setting the baseline : When adding oil, the strength to listen to the sound, when the sound intensity decreased and then rose again . At this time , do not add too much oil , and the baseline set it .