A mast hose is an important thing to pay attention to when routine inspections are carried out on equipment used to handle materials. If there are problems with the mast how at an industrial facility, it’s highly likely that malfunctions and down time will result.
All of this inevitably leads to avoidable decreases in productivity. But the productivity issues are not the only consequence of a faulty mast hose that is poorly maintained. Perhaps an even more important consequence that needs to be avoided is safety issues. A man hose that is failing or not operating properly can spill out oil. Spilled oil on a site can make it possible for dangerous and costly slip and fall accidents to occur. Avoiding this type of accident is a priority for any employer.
The way to avoid issues and keep a mast hose in the best possible condition over time is to conduct regular inspections. Inspections should involve looking out for faulty parts that need to be replaced. Replacing parts when necessary will lead to money savings over time. It will also ensure that a work environment remains safe and worksite injuries are avoided.
The following are eight things that need to be done as part of routine mast hose inspections:
- Occasionally go over the manual on how the hose works- It’s easy to forget some of the information that is provided in the manual. For this reason, occasionally revising the manual as you inspect the hose is important.
- Make sure that there are no cracks on the exterior bend radius of the hose- The exterior bend radius portion of a mast hose is one of the areas in the hose where cracks are most likely to develop. This is especially true where hoses are used at very low temperatures. Look out for cracks that form perpendicular to the hose. If you need to use your mast hose at unusually low temperatures, you may need to find a product that has a lower temperating rating.
- Look over the hose from tip to tip- Inspecting the hose from tip to tip is important for looking out for any jacket portions that are missing from the assembly.
- Make sure that the hose exhibits proper tension- It’s fairly typical for mast hoses to be sold after they’ve already been set to the proper tension. You can consult the owner’s manual of your hose to look for what the proper tension should be and adjust your mast hose accordingly during inspections.
- Check the jacket for gouges- Over time, parallel cuts can develop on the jacket of a mast hose. Replacing jacket that is gouged out is especially important in situations where the hose reinforcement has been altered in some way.
- Make sure that wires are not broken- Broken wires are especially likely to develop and are especially problematic in situations where rubber hoses are being used. Broken wires can break out of the rubber and stick out of the jacket. Be careful not to cut your hand or fingers when inspected for broken wires that are protruding from hoses.
- Check where hose sides meet sheaves- If a mast hose is unusually wide, it’s possible for the jacket to wear out at places where the hose sides come into contact with the sheaves. In this case, it might be a good idea to look for a mast hose that offers a lower profile.
- Make sure there are no leaks at connections- Leaks are particularly likely to develop at the hose ends and at the connections that join together two hose ends. Connections need to be tight. In the event that a leak is detected, the hose and fittings can possibly be sealed. If damage is excessive, parts may need to be replaced entirely and repair will not be possible.
Keeping the importance of sheave width in mind when replacements are necessary
The key factor to consider when you need to replace one of your mast hoses is sheave width. Excessive sheave width often means that additional wear will be likely to occur so that the hose will have to be replaced sooner than necessary.
Mast hoses should ideally not fit too tightly into the sheave. In situations where hoses are too tight when the hose is not pressurized, hoses can become too tight during use and could possibly come loose out of the sheave. The best way to find a hose with the appropriate sheave width is to have mast manufacturers install a new hose according to the “stretch of the hose” measurement.
Why choose a thermoplastic material over rubber if replacement is necessary
The material choices available out there for mast hoses are typically either thermoplastic or rubber. Generally speaking, it’s probably a good idea to choose thermoplastic hoses over rubber hoses. When thermoplastic hoses are chosen, minimal stretching occurs upon the application of tension. Also, thermoplastic tends to be more durable and lasts longer than rubber because of the following three factors:
- There is no delamination when thermoplastic hoses are used. If rubber hoses are used, delimitation can be expected whenever an over-the-sheave application is carried out.
- Thermoplastic mast hoses are able to handle lower temperatures generally speaking than rubber hoses. If your facility relies upon operation at low temperatures due to either cold weather or use of freezers, thermoplastic is definitely the way to go.
- Thermoplastic hoses ensure that there is no fatigue in the fiber reinforcement that is in use. Constant flexing motion means that fiber reinforcement is important and shouldn’t wear out or deteriorate over time.