Question 1

What are the most common causes of hydraulic system failure?

Accepted Answer

There are many reasons that could cause a hydraulic system to break down, many of which are preventable if carefully monitored. Here we take a look at some of the signs and symptoms of hydraulic failure.

1.  Fluid contamination 
2. Poor or irregular maintenance 
3. Misuse and human error
4. Environmental & operating factors

For more information read our full blog here:

https://www.fpeseals.com/faq/what-are-the-most-common-causes-of-hydraulic-system-failure

Question 2

What is a Hydraulic Ram?

Accepted Answer

A hydraulic ram is a cylinder with a movable rod that can move a mass, or an obstruction as so required. In principle, a hydraulic cylinder ram works by an external fluid being pumped into either side of a cylinder simultaneously, this creates a high pressure and low-pressure side within the cylinder depending on the load that it is trying to move.

For more information read our full blog here:

https://www.fpeseals.com/faq/what-is-a-hydraulic-ram-and-how-does-it-work

Question 3

What Causes Hydraulics to Run Slow?

Accepted Answer

When it comes to a hydraulic system, a common complaint can be that it is operating slowly or less effectively than before. There are many reasons why this can occur, but this is mainly down to an issue with fluid flow and faulty or failing parts.

In general, if your hydraulic system is running slowly when the fluid warms up, then this is due to the oil thinning and therefore able to pass easily across worn or damaged surfaces. Carrying out a simple flow test with a flow meter

For more information read our full blog here:

https://www.fpeseals.com/faq/what-causes-hydraulics-to-run-slow

Question 4

Why Are Hydraulic Cylinders Cushioned?

Accepted Answer

Cushioning, or soft start as it is sometimes referred to, is used to slow down a hydraulic cylinder, by reducing the speed of a piston at the end of its stroke, or before it meets the end cap. This method is generally used in double-acting cylinders, for heavy duty applications that use a lot of kinetic energy.

Cushioning is commonly fitted to both the rod side and full-bore side of a cylinder, to bring the final movement of the rod to a stop. This prevents the piston from slapping against the back of the gland and the end cap of the cylinder when opening and closing.

The ultimate purpose of using a cushioning method is to avoid damage to the piston.

For more information read our full blog here:

https://www.fpeseals.com/faq/why-are-hydraulic-cylinders-cushioned

Question 5

Why Do Hydraulic Cylinders Fail?

Accepted Answer

Hydraulic cylinders come in all shapes and sizes and are used in a variety of applications. The reasons why a cylinder can fail will depend on their application but in general, most problems are usually down to either physical damage or seal deterioration.

Suppose a cylinder is misused or has been physical damaged in some way. In that case, it can become a pressure intensifier, which causes harm to the different components, from misalignment, to the piston being pulled from the rod, to the drastic results of the cylinder splitting its full length.

For more information read our full blog here:

https://www.fpeseals.com/faq/why-do-hydraulic-cylinders-fail

Question 6

Why Is My Excavator So Slow?

Accepted Answer

Modern day excavators come in many shapes and sizes, with most now fitted with more than one hydraulic pump, along with various system relief valves, service relief valves and priority valves to make the excavator run more smoothly.

Generally, there are two main hydraulic pumps, one for each of the track motors and possibly a smaller displacement pump for the pilot circuit. Reasons as to why an excavator is running slowly, can be down to the two main hydraulic pumps, as it is these that are primarily designed to power the main function of the excavator.

For more information read our full blog here:

https://www.fpeseals.com/faq/why-is-my-excavator-so-slow

Question 7

What Causes Hydraulics Cylinders to Leak?

Accepted Answer

Almost all hydraulic cylinders within their working lifetime will show signs of a leak. However, if issues are spotted early enough leaks can be minimised and easily fixed.

Main causes of a hydraulic cylinder leak:
1. Wear & Tear
2. Contamination
3. Poor maintenance
4. Changes in operating conditions

For more information read our full blog here:

https://www.fpeseals.com/faq/what-causes-hydraulics-cylinders-to-leak

Question 8

How to Check if Hydraulic Cylinder is Leaking Internally

Accepted Answer

Internal leaks in hydraulic cylinders can be caused when hydraulic fluid unintentionally flows from one side of the piston to the other. This happens due to worn-out seals, cracks, or issues with the piston. In a hydraulic system, as fluid is restricted to its designated areas, it helps to maintain proper pressure and ensures smooth operation. But when an internal leak occurs the fluid escapes, resulting in pressure loss and a decrease in overall system efficiency.

How to Spot Internal Leakage
1.  Physical Signs
2. Performance

For more information read our full blog here:
https://www.fpeseals.com/faq/how-to-check-if-hydraulic-cylinder-is-leaking-internally

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