3 Major Signs of Hydraulic System Failure
Friday, November 17, 2017
Part 1 of our 2-part series focused on the most common reasons behind hydraulic system failure, touching on fluid contamination, heat-aging, abrasion, and insertion depth. Now, let’s move past the causes and focus on the signs and symptoms.
Brendan Casey of Machinery Lubrication describes three easily detectable symptoms that give early warning something’s wrong with your hydraulic system.
Abnormal noise in hydraulic systems is often caused by aeration or cavitation. Aeration occurs when air contaminates the hydraulic fluid. Air in the hydraulic fluid makes an alarming banging or knocking noise when it compresses and decompresses, as it circulates through the system.
Cavitation occurs when the volume of fluid demanded by any part of a hydraulic circuit exceeds the volume of fluid being supplied. This causes the absolute pressure in that part of the circuit to fall below the vapor pressure of the hydraulic fluid. This results in the formation of vapor cavities within the fluid, which implode when compressed, causing a characteristic knocking noise.
High Fluid Temperature
Fluid temperatures above 180°F (82°C) can damage seals and accelerate degradation of the fluid. This means that the operation of any hydraulic system at temperatures above 180°F is detrimental and should be avoided. In addition to damaging seals and reducing the service life of the hydraulic fluid, high fluid temperature can cause damage to system components through inadequate lubrication as a result of excessive thinning of the oil film (low viscosity).
A reduction in machine performance is often the first indication that there is something wrong with a hydraulic system. This usually manifests itself in longer cycle times or slow operation.
If you’re seeing these symptoms in your equipment or machinery, it’s time to consider some preventative maintenance before any major damage is done.
Whether it’s a preventative measure or emergency response, Air-Way has the capacity, inventory, and shipping capability to help you repair or replace your hydraulic fittings and hose assemblies quickly and reliably. This reduces the downtime our customers experience when their systems fail and fast component repair or replacement is time critical.
To learn more about our hydraulic offerings you can view our catalog online, or please contact us today!
4 Reasons Behind Hydraulic System FailureEven the strongest, most resilient hydraulic systems fail from time to time, and there can be 100 explanations behind it. Many of these failures are preventable if conditions are monitored appropriately, and a pro-active rather than reactive stance is taken to hydraulic system maintenance.
Avoid Hydraulic Leaks & Contamination Before Fittings Are Even InstalledBelieve it or not, hydraulic system leaking and contamination can happen at any time, even with freshly installed hydraulic fittings. While fittings and hoses are leak-free by design, when a leak or material contamination does occur, it becomes a major manufacturing issue, escalating in expense and lost production time quickly.
FLARE-O Fittings: Precise Fittings for Precise ApplicationsOur FLARE-O product line provides a leak free solution for very precise areas on a piece of equipment or machinery. With the addition of an elastomeric O-Ring positioned in a strategic area of the sealing boundaries, hydraulic leaks vanish. A drop-in replacement for SAE 37 Degree Flared Tube Fittings, the elastomeric O-Ring on the FLARE-O hydraulic fitting product line provides the tightest seal available on the market.