Oil-Air Lubrication System Flow Alarm: Causes and Troubleshooting-Huashun Lubrication

Oil-Air Lubrication System Flow Alarm: Causes and Troubleshooting

Release time:

2022-08-08

During the operation of an oil-air lubrication system, users may occasionally encounter frequent flow alarm signals. Although this alarm does not always indicate a serious failure, it is important to understand the possible causes and troubleshooting methods to ensure reliable equipment operation.

Why Does the Flow Alarm Occur Frequently?

A frequent flow alarm is usually caused by one of the following reasons:

1. Flow Fluctuation Near the Alarm Setting Point

The oil-air flow monitoring device detects whether lubricant delivery meets the preset operating requirements.

In some cases, the normal operating flow may be very close to the alarm threshold. When small changes occur, such as:

Slight fluctuation of oil-air flow
Minor pressure variation
Small resistance changes inside pipelines or bearing housings

the flow monitor may interpret these changes as abnormal conditions and trigger an alarm.

This situation does not necessarily mean that the lubrication system has stopped working.

2. Pipeline or Lubrication Point Resistance Changes

During long-term operation, changes in pipeline conditions or lubrication point resistance may affect oil-air flow stability.

Possible factors include:

Pipeline contamination
Partial blockage
Unstable compressed air supply
Changes in lubrication point conditions

These issues should be checked to ensure smooth oil-air delivery.

3. Flow Sensor or Electrical Problems

If the flow monitoring device becomes aged or the electrical connection is unstable, false alarms may occur.

Possible causes include:

Flow sensor performance degradation
Loose wiring connection
Electrical signal interruption

Recommended Troubleshooting Steps

When a flow alarm occurs frequently, follow these steps:

Check whether the oil-air flow is normal
Inspect lubrication pipelines for blockage or leakage
Verify compressed air pressure and supply stability
Check the condition of the flow monitoring device
Inspect electrical connections and signal cables

If the oil-air flow and pipeline system are confirmed to be normal, the alarm setting or monitoring sensitivity may need adjustment to avoid unnecessary alarms.

Reliable Flow Monitoring Ensures Effective Lubrication

The flow monitoring system plays an important role in protecting bearings and critical components.

Proper adjustment and regular inspection help ensure that oil-air lubrication systems continue to provide:

Stable lubricant delivery
Reduced bearing wear
Lower maintenance requirements
Reliable equipment operation

For steel mill equipment and other heavy-duty industrial applications, correct flow monitoring is essential for maintaining long-term lubrication performance.

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