Rotary Vane Vacuum Pump Troubleshooting: Low Vacuum
Oil is insufficient.
---Add oil.
The pump oil is not clean and emulsified.
---Open the gas ballast valve and change the oil.
The pump oil grade is wrong.
---Oil change
The oil inlet is blocked.
---Clean the oil inlet and adjust the oil volume.
Leakage
---Check the shaft seal, exhaust valve, end cover, etc., and replace the sealing ring.
The exhaust valve plate is damaged.
---Replace with a new valve.
The gap is too large due to wear.
---Check the gap and repair it.
The temperature of the pump rises and the viscosity of the oil is too low.
---Increase the cooling water amount.
The temperature of the pump oil is too high.
---Add air cooling device.
The tightness of the end cover screws is different, causing the rotor shaft core to deviate.
---Disassemble and reassemble.
The vane spring is broken.
---Replace with a new spring.
The filter of the intake pipe is blocked.
---Clean the filter.
The gas ballast valve is not closed or damaged.
---Close or repair valve.
The pump wheel key is broken and the wheel spins idly.
---Change the key.
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