Is It Time To Replace Your Hydraulic Hoses? Here’s how
It’s inevitable that eventually, the components of your equipment will fail. Although it may not be the easiest task to remove and replace a hose and fittings, it’s a necessary job. Otherwise, a hose will eventually begin to leak oil or other fluid, which can cause damage to other parts of your equipment, costing your business even more.
Steps to Replacing Hoses
1) Locating the Leak
The first thing to do is to locate the hose that’s leaking the oil or other fluid. Of course, a hose that has burst will be easier to identify than one that’s leaking. If it’s the latter, some observation will be necessary. Most importantly, use some kind of paper or leak detection fluid, and not your extremities to identify the source of the leak. This will help to avoid injury as well as contamination.
2) Determine Level of Removal
Often, other components will need to be removed in order to get to the leaking hose. Depending on the location of the leak, there could be several components requiring removal. If this is the case, then labelling of each component will be necessary. This will make things much easier following replacement of the hose and fittings.
3) Identify Pressure Level
Before any removal of fittings or hoses occurs, it’s critical to determine whether or not the damaged hose is under pressure or some kind of weight. Both of these can cause the discharge of fluid at high pressure, which can damage other equipment components and place others at risk. If a hose is under pressure, it’s important to eliminate that pressure before setting about removing the hose and its fittings.
4) Secure Attachments
Some hoses are supported by a hydraulic cylinder and attachments. These components can collapse and cause injury once any pressure is relieved if they are not secured before hose removal and replacement occurs. Ways to secure these attachments can include lowering them to the ground, or chaining or blocking them.
5) Gather the Needed Tools
A wrench will be needed to remove the fittings located on each end of the hose. Two wrenches may be required to remove fittings, as many have been designed to both turn and swivel. Correct removal of the fittings is as follows: hold the coupling’s stationary side with one wrench as you turn the swivel side of the coupling with the other wrench.
6) Remove Interferences
Items like attachments and clamps can interfere with hose removal, and so must be removed. Likewise, the hydraulic cylinder will also likely need to be removed or supported in some way. These cylinders are usually secured with a steel pin or bolted directly to the component the cylinder operates.
7) Loosen Fittings, Pull Hose
When loosening the fittings that attach the affected hose to the rest of the system, it’s important to ensure that the fitting turns only at the threaded connection. A wrench may be required to hold the fitting to the hose. The hose should only be pulled when both ends have been unfastened. Be aware that some oil may still be present in the hose and may fall from each unfastened end.
Now that the damaged hose has been removed, it’s important to wipe off any excess oil. Before installing the new hose, ensure that all fittings have been cleaned and all dirt in tubing and fittings has been eliminated. Ensure all connections have been tightened as much as possible without damaging seals, and that the hose has adequate slack.
Once everything has been reconnected, test equipment for leaks. If none has been found, hose replacement has been successful.
Please call us on 01922 646 716 for more information, we can help you with your enquiry.