Analysis of the fault of hydraulic universal testing machine caused by pointers

The universal testing machine is a multi-functional testing instrument.Hydraulic universal testing machineThe dial pointer has poor sensitivity, and it stops in the middle after unloading, or the zero position often changes. The causes of this phenomenon are multifaceted.

1. The pulleys and tracks on the tooth rods are too dusty and rusted. At this time, you need to remove and clean it, and add a little watch oil.

2. The pointer rotation shaft is dirty and should be cleaned.

3. If there is contact between the tooth rod tablet and the tooth rod, it should be loosened.

4. If the buffer oil return condition is poor, it should be adjusted or cleaned.

5. The belt on the force-testing piston is falling off or too loose (makes the piston unable to operate at a uniform speed).

6. If the friction force of the force-testing piston increases or gets stuck in the oil cylinder, use chromium oxide grinding paste to grind until it is normal.

7. There are obstacles during the lifting process of the pendulum, or the pendulum shaft is too dirty or rusted, causing the pointer to return to zero and change greatly.

MoreUniversal testing machineAll information is in Jinan Hengsi Shanda Instrument Co., Ltd.