What is a pump seal?

What is a pump seal?

A pump shaft seal works on the rotating pump shaft where it passes through the non-rotating housing parts. Due to the discharge pressure, the fluid attempts to exit through the rotating shaft. The pump shaft seal allows the rotating shaft to enter the ‘wet’ area of the pump without leaking fluids.

When to replace seals on a hydraulic cylinder?

Replace seals and o-rings on the piston and gland one at a time. This will help to minimize confusion and correct placement. Be careful to identify and use the right seal. Some seals are very thin and can be easily damaged if not installed evenly. Ensure each groove is clean and debris free before replacing with the new part.

What’s the best way to repack a cylinder?

Keep the parts in order and take a photo to use later for reference if needed. Replace seals and o-rings on the piston and gland one at a time. This will help to minimize confusion and correct placement. Be careful to identify and use the right seal. Some seals are very thin and can be easily damaged if not installed evenly.

What happens when the piston seal is removed from a double acting cylinder?

Fact is, if the piston seal is completely removed from a double-acting cylinder, the cylinder is filled with oil and the ports are plugged, the cylinder will hold its load indefinitely, unless the rod-seal leaks.

What’s the best way to remove seals from a piston?

To remove the seals from the piston and the gland a set of seal picks is the best option. They come in a variety of shapes and styles and make light work of stiff, brittle and old hydraulic seals. Some cylinders are very large to work on a standard type bench and require the mechanical advantage of a hydraulic strip bench.

Replace seals and o-rings on the piston and gland one at a time. This will help to minimize confusion and correct placement. Be careful to identify and use the right seal. Some seals are very thin and can be easily damaged if not installed evenly. Ensure each groove is clean and debris free before replacing with the new part.

Keep the parts in order and take a photo to use later for reference if needed. Replace seals and o-rings on the piston and gland one at a time. This will help to minimize confusion and correct placement. Be careful to identify and use the right seal. Some seals are very thin and can be easily damaged if not installed evenly.

Fact is, if the piston seal is completely removed from a double-acting cylinder, the cylinder is filled with oil and the ports are plugged, the cylinder will hold its load indefinitely, unless the rod-seal leaks.

How do you remove a hydraulic cylinder from a car?

Loosen and remove the hydraulic lines from the cylinder. This will allow the last bit of pressure to escape the cylinder. Ensure the hydraulic cylinder is supported and won’t drop, then remove the pin from the rod end of the cylinder. Remove the gland from the cylinder. This will be different for each cylinder manufacturer.