First, test the output power of the engine itself. If the output power of the engine is lower than the rated power, it may be due to poor fuel quality, low fuel pressure, brake and its joystick failure and carbon deposition in the turbocharger. If the engine output power is normal, it is necessary to check whether the flow of the hydraulic pump does not match the engine output power. This kind of fault should start with the electrical system, then check the hydraulic system and finally check the mechanical transmission system.
2. Solenoid valve does not work
When controlling the solenoid valve on the operation panel, the solenoid valve cannot be opened manually or automatically, and the solenoid valve coil, pilot valve or operation button can be replaced; When the exhaust port on the solenoid valve cannot be opened manually, replace the solenoid valve; When the lower outlet of the solenoid valve cannot be opened manually, check whether there is air leakage inside the cylinder, sealing ring, piston rod and compression screw.
3. Slow working speed
The slow working speed of the drag pump is mainly due to the wear of all parts of the whole machine, which leads to the decrease of engine power and the internal leakage of the hydraulic system. The hydraulic pump of the traction pump is a plunger variable pump. After working for a certain period of time, the internal hydraulic components (oil cylinder, plunger, nine-hole disk, etc.). ) will inevitably lead to excessive wear, internal leakage, uncoordinated parameters, resulting in insufficient flow, high oil temperature and slow working speed. At this time, it is necessary to overhaul the whole machine and repair and replace the worn parts. AUID (Automatic Idling) technology of towing pump effectively controls fuel consumption and engine wear, and the control system of variable displacement pump has higher precision and higher efficiency!
4. The roller of belt conveyor does not work.
When the belt is running, always check the running condition of the idler. If it does not turn, replace it in time. Don't work with illness, or you will scratch the belt. Check electric drum lubricating oil of belt conveyor regularly, and add and replace it in time. Remove and remove the oil sludge in the cylinder.
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