Now we have to carry out the daily maintenance and calibration of the stone grinder. In the maintenance, we need to pay special attention to the factors that affect the inspection results, such as dust, temperature, humidity, vibration, noise, corrosion and so on. We should strictly control them to reduce the error. And also to ensure that all the instruments in the table fixed and flat, in line with the use requirements.

每臺石磨磨粉機都有相應的工作規范和操作規程及簡單的故障排除方法，需要制定所有設備的一個臺帳，以及一個檢定周期的計劃表等，并還要設置專人對這些進行管理，確保落實到位。從而正確的使用以及保養維護各設備與儀器。

Each stone mill has its own work specifications, operating procedures and simple troubleshooting methods. It is necessary to establish a standing book of all equipment and a verification cycle schedule, and set up a special person to manage these to ensure the implementation. So that the correct use and maintenance of the equipment and instruments.

有些朋友遇到石磨豆腐機軸承噪聲問題，這是怎么回事？因為軸承在運轉中都會發出一定的聲響。若石磨豆腐機軸承運轉正常，其聲音為連續而細小的“沙沙”聲，不會有忽高忽低的變化及金屬摩擦聲。若出現以下幾種聲音則為正常現象。

Some friends encounter the bearing noise problem of stone mill tofu machine. What's the matter? Because the bearing will make a certain noise in operation. If the bearing of tofu mill works normally, its sound is continuous and small "rustle", and there will be no change from high to low and metal friction sound. The following sounds are normal.

一種是軸承運轉時有“吱吱”聲，這是金屬摩擦聲，一般為機器軸承缺油所致，應拆開軸承加注適量的潤滑脂。

One is that there is a "squeak" sound when the bearing is running, which is the metal friction sound. Generally, it is caused by the lack of oil in the machine bearing. It is necessary to disassemble the bearing and add an appropriate amount of grease.

第二種是若出現“唧哩”聲，這是由于滾珠轉動時所發出的聲音，一般為潤滑脂干涸或缺油引起，可加注適量油脂。

The second is if there is a "chirp" sound, which is caused by the sound when the ball rotates. Generally, it is caused by the grease drying up or lack of oil. You can add an appropriate amount of grease.

第三種是若出現“喀喀”聲或“嘎吱”聲，則為軸承內滾珠不規則運動而產生的聲音，這是機器軸承內滾珠損壞或電動機長期不用，潤滑脂干涸所致。

The third is that if there is a "click" or "creak" sound, it is caused by the irregular movement of the ball in the bearing, which is caused by the damage of the ball in the bearing of the machine or the long-term use of the motor and the drying up of the grease.