Common Problems in Automatic Grease Lubrication Systems and How to Solve Them

Release time:

2022-04-05

Automatic grease lubrication systems are designed to improve equipment reliability, reduce manual maintenance, and extend component life. However, like any industrial system, they require proper maintenance and regular inspection to ensure optimal performance.

Understanding common lubrication system problems—and knowing how to solve them—can help prevent unexpected downtime and costly equipment failures.

1. Grease Is Not Reaching the Lubrication Points

Possible Causes

One of the most common issues is that grease fails to reach one or more lubrication points.

Possible reasons include:

Blocked grease lines
Clogged distributors
Air trapped in the pipeline
Empty grease reservoir
Pump malfunction

Solution

Regularly inspect the grease reservoir, tubing, and distributors. Remove any blockages, bleed air from the system if necessary, and ensure the pump is operating correctly.

2. Excessive or Insufficient Grease Supply

Possible Causes

Too much grease can cause overheating, seal damage, and grease leakage, while too little grease accelerates bearing wear.

This problem may result from:

Incorrect controller settings
Improper metering devices
Wrong lubrication intervals
Inappropriate grease selection

Solution

Adjust the lubrication cycle according to the equipment manufacturer's recommendations and verify that the correct metering components are installed.

3. Low System Pressure

Possible Causes

Insufficient pressure prevents grease from reaching every lubrication point.

Common causes include:

Grease leakage
Worn pump components
Loose pipe fittings
Internal system leakage

Solution

Inspect the entire lubrication system for leaks, tighten all fittings, and replace worn pump components when necessary.

4. Blocked Progressive Distributor

Possible Causes

A progressive distributor may stop operating if one outlet becomes blocked.

Typical causes include:

Hardened grease
Contaminated lubricant
Damaged metering elements

Solution

Clean or replace the blocked distributor, use clean grease, and replace grease filters regularly to prevent contamination.

5. Grease Contamination

Possible Causes

Dust, water, or other contaminants entering the grease can reduce lubrication performance and accelerate component wear.

Contamination usually occurs because of:

Damaged seals
Poor storage conditions
Dirty filling procedures

Solution

Always use clean grease, maintain proper sealing, and refill reservoirs using clean tools and recommended procedures.

6. Pump Does Not Start

Possible Causes

If the pump fails to operate, lubrication will stop completely.

Possible reasons include:

Power supply failure
Blown fuse
Faulty motor
PLC or controller malfunction

Solution

Check the electrical supply, inspect control components, and verify that all electrical connections are secure.

7. Frequent Alarm Signals

Modern automatic lubrication systems often include alarms for:

Low grease level
Low pressure
Distributor faults
Motor overload
Controller errors

These alarms should never be ignored.

Solution

Identify the source of the alarm promptly and resolve the issue before restarting the system. Addressing minor problems early can prevent major equipment failures.