Why cant I get grease into zerk?
If you're having trouble getting grease into a zerk (grease fitting), there could be a few potential reasons. The most common issues are a blocked or damaged zerk, excessive back pressure in the lubrication system, or a problem with the grease gun itself. Let's explore these potential causes in more detail.
Blocked or Damaged Zerk
The zerk is the small fitting that allows you to inject grease into a component, such as a bearing or joint. If the zerk is blocked or damaged, it can prevent the grease from flowing through. This could be due to:
- Dirt, debris, or corrosion buildup in the zerk
- A damaged or deformed zerk that is no longer allowing grease to pass through
- The zerk being completely blocked, either from the inside or the outside
To address a blocked or damaged zerk, you may need to clean it out or replace it entirely. Use a zerk cleaning tool or a small wire to try and clear any blockages. If the zerk is damaged, it will need to be replaced.
Excessive Back Pressure
Another common issue is excessive back pressure in the lubrication system. This can happen if:
- The component being lubricated is already full of grease and can't accept any more
- There is a blockage or restriction somewhere else in the lubrication system
- The grease gun is not able to generate enough pressure to overcome the back pressure in the system
If you encounter excessive back pressure, you may need to relieve the pressure by removing the zerk and allowing the old grease to escape. You can also try using a higher-pressure grease gun to overcome the back pressure.
Problems with the Grease Gun
Finally, issues with the grease gun itself can prevent you from getting grease into the zerk. Make sure the grease gun is in good working order, with a properly functioning pump and hose. Check for any leaks or damage that could be reducing the gun's ability to generate pressure. You may also need to replace the grease cartridge or refill the gun with fresh grease.
By addressing these potential causes, you should be able to get grease flowing through the zerk and into the component that needs lubrication.
