Leaks generally rank number one in the list of most common maintenance issues with hydraulic equipment. And leaking hydraulic connections are often accepted as an inherent characteristic of hydraulic machines. While this may have been true 40 years ago, advances in sealing technology and the development of reliable connection systems means that today, leak-free hydraulic systems are very much achievable.
Reliable Connections. Ideally, leak-free reliability begins at the design stage, when the type of hydraulic connection is selected for port, tube-end and hose-end connections.
Ports – Connectors that incorporate an elastomeric seal such as UN-O-Ring, BSPP and SAE 4-bolt flange offer the highest seal reliability.… continue reading »
The price of oil sure is defying gravity at the moment. But unless you’re the owner of a lot of poorly maintained (read: leaky) hydraulic equipment, the price of gas and diesel is likely hurting your wallet more than the price of hydraulic oil. Regardless, you sure don’t want to be shelling out for any more of it than you have to.
So this begs the question: how can you make your hydraulic oil go further; last longer? Here’s four things that’ll help:
#1. Keep it in
The first and most obvious thing is to keep it in the hydraulic system.… continue reading »
Ed Bailey, Bison Steel Inc., got and read The Hydraulic Maintenance Handbook and used the know-how within to deal with water contamination in a hydraulic shear. The oil capacity of the hydraulic tank was 300 gallons (1136 litres).
Initially the oil was circulated through water removal filters. Six filters were used but this only took out some of the water. A variation of the head space flush described in The Hydraulic Maintenance Handbook was then deployed.
The blower side of a shop vacuum was attached to the breather penetration in the tank lid. Air was blown into the head space and exhausted through a 1/2″ diameter hole at the other end of the tank’s head space.… continue reading »