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Hydraulic hoses should last between one and two years with many lasting up to ten years, so if the hoses on your equipment are failing in less than two years, then there are external factors that are reducing their life.
Like auto tires, all hydraulic hoses have a shelf life. Depending on the type of hose, after 4 to 5 years the rubber begins to break down and you can expect to see visual cracking and weeping around the couplings. If you are using a lower quality hose, that can be even sooner.
- Stay on Top Of Tube Erosion. …
- Make Sure Fluids Are Compatible. …
- Know About Dry or Aged Air. …
- Pay Attention to the Radius Bend Radius. …
- Understand Insertion Depth. …
- Improper Assembly and Contamination. …
- Overheating is Common. …
- Wear and Tear and Abrasion.
According to the Society of Automotive Engineers (SAE), the shelf life of bulk rubber hose is 10 years from the date of manufacture. Look for the manufacturing date of the hose on its lay-line and if the hose is close to 10 years old, don’t use it.
Hydraulic hose failure is most commonly caused by abrasion, poor routing, high temperatures, tube erosion, bent hoses near fittings, fluid incompatibility, and improper assembly. … Hose failure causes the shutdown of machines and entire systems, resulting in downtime, expensive repairs, and other financial losses.
Air and water contamination are the leading causes of hydraulic failure, accounting for 80 to 90% of hydraulic failures. Faulty pumps, system breaches or temperature issues often cause both types of contamination.
Air in your hydraulic lines can eventually cause damage to the entire system, so it’s a good idea to bleed the lines once in a while, or if you suspect air was caught.
- Identify the issue. Verify which hose is damaged before removing and replacing it. …
- Assess the situation. …
- Prepare the system. …
- Loosen the fittings. …
- Remove the hose. …
- Seal the fittings. …
- Install the new hose. …
- Visually check the installed hose.
- Shielding. Perhaps the best way to keep hose safe is to create a physical barrier against harm. …
- Spring guards. …
- Protective sleeving. …
- Protective wrap. …
- Plastic spiral guards. …
- Fire sleeve. …
- Point-of-contact sleeve.
- Have a maintenance routine. …
- Don’t ignore leakage. …
- Replace old or damaged assemblies. …
- Prevent Contamination. …
- Maintain the correct temperature. …
- Don’t exceed pressure ratings. …
- Compete a hose failure analysis.
Rubber hoses should be stored at a temperature between 50 and 70 degrees. Heat can weaken the materials and cold temperatures can create stiff hoses. Make sure that your storage area is free of rodents and insects that might eat away at your parts. Store your parts and hoses in their original shipping containers.
Experts recommend, however, that all hoses be replaced at least every four years or when one fails. Always use replacement hoses designed to fight ECD. Trademarks will vary among hose manufacturers.
Rubber garden hoses are generally the most durable and versatile but can cost more, such as $50+ for a 50-foot hose. A rubber hose resists kinking and cracking, but it’s also a bit heavier, especially when filled with water.
They should last for at least five years, but some will last longer, particularly if you’re vigilant about having your coolant changed and your vehicle maintained properly.
You could crimp it from 1.027 to 1.043. Anywhere within that range, the hose is still valid, but you don’t know where you’re at. You either risk over-crimping and restricting flow or damaging the braiding on the hose, or you risk it not being crimped enough and blowing off a hose end.
Temperature Exposure. High or low-temperature exposure is another common problem with garden hoses that could result in their bursting. Extreme temperature exposures lead to discoloration, hardness, and cracking of your pipe.
- System Cannot Reach Pressure. If your system isn’t reaching pressure, this could be a sign of pressure relief valve failure. …
- System is Over Maximum Pressure. …
- Pressure Relief Valve is Leaking or Has No Pressure.
Contamination can occur when the hydraulic pump fails, and debris is introduced into the hydraulic fluid. … Water will reduce the viscosity and load-bearing ability of the fluid. A serious result of this can be higher levels of contact between surfaces, resulting in greater component wear.
- You start hearing alarming banging noises. …
- Your hydraulic cylinder starts “juddering”. …
- Your power bill goes up. …
- The actuator starts to slow down. …
- Your cylinder starts getting way too hot. …
- You notice the piston rod is wearing on one side.
Air in the hydraulic fluid makes an alarming banging or knocking noise when it compresses and decompresses, as it circulates through the system. Other symptoms include foaming of the fluid and erratic actuator movement.
Registered User. You don’t need or should use any teflon tape or pipe dope on hydraulic fittings. Neither are designed for those kinds of pressures and using them could create a less then perfect mating between connection surfaces causing more harm than good.
The need for more frequent replacement drives the cost of owning the hose up. Every time the hose needs to be replaced, the business has to pay not only for the price of the hose itself, but also for someone to go get the replacement hose, and to do the actual work.
Use New O-rings on Hydraulic Fittings O-rings ensure a tight, leak-free seal. If you try to reuse an O-ring, there is a good chance that it will be cracked, and that will ruin the seal’s integrity even if you have a new fitting.
Hydraulic hoses are often constructed of multiple materials. The most common materials are fluoropolymers and silicone, elastomers, metal, and thermoplastics. Composite or laminated materials are also common. Rubber and elastomeric hydraulic hose is a strong choice when you need flexibility.
Commonly used compounds include synthetic rubber, thermoplastics, and PTFE, sometimes called Teflon. The reinforcement layer consists of one or more sheaths of braided wire, spiral-wound wire, or textile yarn.
Spray Protectant Using an engine protectant every few months will keep your hoses looking clean, your rubber moist and flexible (drying out causes cracking), and extend the amount of time between repairs.
When to Inspect Hydraulic Hoses Stationary equipment should be inspected about every three months. In the case of mobile equipment, hose inspections should take place every three months or every 400 to 600 hours of use, whichever occurs first.
The answer is that you should inspect your hydraulic hoses whenever you are doing your regular system preventative maintenance. This should be every three months for stationary equipment and every 400 to 600 hours of use for mobile equipment.
- Fitting slippage on hose;
- Damaged, cracked, cut or abraded cover (any reinforcement exposed);
- Hard, stiff, heat cracked, or charred hose;
- Cracked, damaged, or badly corroded fittings;
- Leaks at fitting or in hose;
In the vast majority of common hydraulic hoses, the I.D. measurement is divided into 1/16” increments known as the “dash size.” For example, a hose measuring 3/4” ID will be shown as a “-12” coming from the numerator of the fraction of 3/4″=12/16”. A 1” ID would be 16/16 or a -16, and so on.
Hoses that are delivered coiled must be stored horizontally. Whenever possible, you should store your hoses in their original package, especially if these containers are wooden crates or cardboard boxes. This kind of packaging also protects the hose from sunlight.
Today’s original equipment belts and hoses are made from long-lasting, high-quality materials. Radiator and heater hoses can last up to 10 years or more, while serpentine belts and timing belts can usually go 100,000 to 120,000 miles.
With the engine off and cool, visually inspect belts and hoses. Gently tug them to confirm they are secure. If you see evidence of leaks, kinks, splits, cracks or abrasion, have a technician check it.
- Best garden hose overall: Flexzilla. Flexzilla Garden Hose. …
- Best soaker hose: Gilmour. Gilmour Hose Flat Soaker. …
- Best heavy-duty hose: Dramm. …
- Best lightweight hose: TheFitLife. …
- Best freshwater hose: Camco. …
- Best all-in-one hose: Giraffe. …
- Best comfort-grip nozzle: Melnor. …
- Best watering wand: GREEN MOUNT.
- Flexilla: Best For Most People. …
- Craftsman Premium Rubber: Best Heavy-Duty Choice. …
- Water Right 400 Series: Best for Small Spaces. …
- Gatorhyde Coiled: Best Value for Small Spaces. …
- Hoselink Retractable with Hose Reel: Best All-In-One. …
- Melnor Flat: Best Soaker. …
- Gilmour Vinyl: Best Sprinkler Hose.
A good garden hose should last five to 10 years with proper care, but you’ll need to replace that hose a whole lot sooner if you don’t maintain it the right way.