volvo excavator hydraulic pump free sample

Danfoss Power Solutions has partnered with U.K. building materials supplier Ashcourt Group to test the Danfoss Dextreme hydraulic system in three Volvo excavators. Ashcourt, based in East Yorkshire, England, said it expects the system to increase the productivity of its machines while reducing fuel consumption.

The excavators were fitted with the Dextreme Swap system in collaboration with U.K. Volvo dealership SMT. The system replaces the excavator’s main hydraulic pump with a Danfoss DextremeDigital Displacement pump, custom software and controller.

Danfoss said the Dextreme Swap is the first level within the Dextreme system solution pathway. The pathway consists of three levels — Swap, Flex, and Max — and is predicted to deliver fuel savings of up to 50% in excavators of all sizes. Dextreme Swap involves simply replacing the excavator’s hydraulic pump. Dextreme Flex adds flexible flow output, while Dextreme Max incorporates load control directly from the pump and energy recovery.

Ashcourt is testing the system on three 20-ton Volvo EC200 diesel-powered excavators. Two of the machines will be used at the company’s Partridge Hall Quarry in East Yorkshire. The third will operate at a nearby material washing facility. In the trial that began in February, each machine is forecast to complete 2000 operating hours over the next 12 months. To compare operating data with Ashcourt’s existing fleet of standard Volvo EC200 machines, each excavator has been fitted with data logging equipment.

A study by Danfoss Power Solutions revealed that excavators account for 50% of all carbon dioxide emissions generated by construction machinery. Around 90% of those emissions come from excavators of ten tons or more, which is why the Dextreme system solution is specifically targeted at the excavator market.

According to Danfoss, an excavator utilizing the Dextreme system will have a lower total cost of ownership than a standard diesel machine. For excavator owners more interested in reducing cycle times than reducing fuel consumption, Dextreme Swap can deliver up to 25% higher productivity.

The Dextreme system can be integrated into diesel, hybrid, and fully electric excavators and will work with any machine control system. Its integral digital pump controller provides extensive data, providing fleet operators with real-time performance monitoring and diagnostics.

“Today’s excavator systems are only 30% efficient, with around 70% of the engine’s energy wasted as heat in the hydraulic system,” said Leif Bruhn, head of Digital Displacement, Danfoss Power Solutions. “We’ve designed the Dextreme system to radically reduce hydraulic system losses, leading to increased productivity and lower fuel consumption. We are excited to be working with the Ashcourt Group in such a challenging environment to demonstrate that Dextreme-equipped excavators deliver more productivity while consuming less fuel.”

Things like restrictions and blockages can impede the flow of fluid to your pump. which could contribute to poor fluid flow. Air leak in suction line. Air present in the pump at startup. Insufficient supply of oil in pump. Clogged or dirty fluid filters. Clogged inlet lines or hoses. Blocked reservoir breather vent. Low oil in the reservoir

Now that we’ve ensured that the directional control is not reversed, it’s time to check that the drive motor itself is turning in the right direction. Sometimes incorrect installation leads to mismatched pipe routings between control valves and motors, which can reverse the direction of flow. Check to see that the motor is turning the pump in the right direction and if not - look at your piping.

Check to ensure that your pump drive motor is turning over and is developing the required speed and torque. In some cases, misalignment can cause binding of the drive shaft, which can prevent the motor from turning. If this is the case, correct the misalignment and inspect the motor for damage. If required, overhaul or replace motor.

Check to ensure the pump to motor coupling is undamaged. A sheared pump coupling is an obvious cause of failure, however the location of some pumps within hydraulic systems makes this difficult to check so it may go overlooked

It is possible that the entire flow could be passing over the relief valve, preventing the pressure from developing. Check that the relief valve is adjusted properly for the pump specifications and the application.

Seized bearings, or pump shafts and other internal damage may prevent the pump from operating all together. If everything else checks out, uncouple the pump and motor and check to see that the pump shaft is able to turn. If not, overhaul or replace the pump.

If your pump is having problems developing sufficient power, following this checklist will help you to pinpoint the problem. In some cases you may find a simple solution is the answer. If your pump is exhibiting any other issues such as noise problems, heat problems or flow problems, you may need to do some more investigation to address the root cause of your pump problem. To help, we’ve created a downloadable troubleshooting guide containing more information about each of these issues. So that you can keep your system up and running and avoid unplanned downtime. Download it here.

The lifeblood of a compact hydraulic excavator is its hydraulic fluid (pressurized oil) that flows through its pumps and motors, but those motors wouldn’t animate anything without a diesel power plant beating at the heart of a machine. In a mini excavator, for example, the powertrain consists of a diesel engine which is hooked up to a set of hydraulic pumps. Together, they generate the critical gallons per minute (gpm) of hydraulic fluid that energize the undercarriage, cab swing, bucket curl, attachment operation and everything in between.

Long-time technicians can attest that the care of compact excavator engines has evolved over the last two decades. Off-highway diesels have become more powerful and efficient but also more complicated. The EPAmandated some complications through a succession of emissions edicts for off-road diesel equipment, rolled out in Tiers 1 through 4 Final. Manufacturer engineers responded to the mandates by incorporating emissions control add-ons such as diesel particulate filters (DPF), diesel oxidation catalysts (DOC) and extra liquids like diesel exhaust fluid (DEF). This re-engineering wasn’t always pretty, certainly wasn’t cheap and has kept a few technicians awake at nights.

Nick Grez, regional sales manager for Kubota Engine America, calls today’s emissions treatments for compact excavator engines “a mixed bag.” He notes, for example, that “there are both DOC and DPF systems. Some manufacturers are going with particulate filters in view of coming Stage V requirements and also because they want to have one engine for the North American and the European markets.” Different engine applications still require different treatment choices (no one tech fits all power and application ranges), but non-DPF technology does seem to be a selling point for some engine and excavator makers, which they relate to less maintenance because a DPF needs to regenerate or burn off collected soot from the exhaust.

Despite this ongoing variety, the industry has come together about one thing: engine size. No longer is bigger better. A prime example is diesel engines under 25 hp. Because they are not subject to the same EPA regulations imposed on larger engines, manufacturers have down-sized where they can, sometimes by upgrading the efficiency of hydraulics.

This is not self-serving for manufacturers. It results in cost savings for compact excavator buyers because an engine with less costly engineering is less expensive. “There are significant savings in staying under that 25-hp point where manufacturers are meeting Tier 4 Final standards without the emissions controls,” says John Comrie, utility product manager with Volvo Construction Equipment. Technicians also don’t have to wrestle with emissions control components.

Excavators that need a little more horsepower fall into the 25 to 75 hp EPA category, and the full array of emissions devices comes into play at that point. For example, Perkins addresses the EPA requirements for the 25- to 75-hp engines with EGR and DOC systems and turbochargers. In the 75 hp-and-above category, Perkins opts for selective catalytic reduction (SCR) systems along with DEF and, in some instances, DPF add-ons. Stage V has already shown up in Europe, which means Tier 5 in America may be around the corner and entail re-engineering engines even further, mandating a DPF for instance.

In the interim, compact excavator maintenance technicians can keep on doing what they are doing — except when they are trying to do too much. “As long as the mechanics are properly trained on the new systems, they can work on the engines,” says Grez. “They need to be trained. They have to have the ability to read error codes that come up. In some situations, a code may show up they can’t access, and they will have to take it to a dealer and plug in and see what it is.”

Comrie agrees that any qualified shop tech with appropriate equipment can handle maintenance of Tier 4 Final excavator engines. “The general maintenance of the engine is not all that different. It is only a problem if you have an issue and the mechanic doesn’t have the proper diagnostic equipment to handle it.” That being said, Comrie draws a line at tweaking the computer on the engine. “Any repair of the machine’s software that controls the diagnostic function or regeneration process should be done by a trained technician in a dealership, or it will end up costing the contractor a lot of money.”

“This is something new for this market. None of the engines are in mini excavators at this time that I am aware of,” Grez says, “but we are seeing a lot more interest in spark-fired engines because of cost savings. The emissions controls obviously increased prices for diesel engines. We expect interest in the engines to continue growing as we get closer to the Tier 4 Final deadline.”

XPRT Genuine Parts maintenance kits are the perfect solution for performing routine scheduled maintenance on Gehl and Mustang compact equipment, including those companies’ stellar mini excavators lines. XPRT Genuine Parts maintenance kits come with genuine OEM parts that are guaranteed by the XPRTs. Get it? A typical filter kit includes components such as engine oil filters, air filters, fuel filters, hydraulic oil filters, transmission filters and cabin air filters if necessary. XPRT Genuine Parts maintenance kits offer up to a 10 percent cost savings by purchasing one kit rather than purchasing each of the kit components separately. For more info, visit gehl.com or mustangmfg.com.EPA, home, June 2017 Print Issue, Kubota Engine America, Perkins Engines, Volvo Construction Equipment

Hydraulic piston pumps are mainly used in construction, including they-reed and self-propelled hydraulic pumps, mainly for construction work, they are a common choice of pumps for construction, and they are mainly used in construction plants. Both hydraulic piston pumps and pneumatic piston pumps are the most common and used in construction sites. The pneumatic piston pumps usually have a piston pressure and the pressure is the same as those used in construction. Pumps, such as pneumatic piston pumps, are air-cooled hydraulic pumps, which are mainly for construction work and they are used with gravity pumps, are air-cooled pumps, and mini hydraulic pumps for construction work. They are smaller and heavier than high-pressure pumps, but they are not used in heavy-duty construction.

When hydraulic pumps work with pressure, they are more adaptable to all types of concrete, such as pumps for trucks, excavators. There are many different kinds of hydraulic pumps available on Alibaba.com, such as electric hydraulic pumps for sale, and hydraulic concrete pumps for sale. They are also great for construction projects, such as large excavator pumps for sale, used excavator pumps for sale, and hydraulic concrete pumps for sale.

There are many key components thatcomprise an excavator, and it can be easy to mix them up. For example, travel motors and final drive motors are two terms that shouldn"t be used interchangeably since they each have different functions. Learn all about the differences between travel motors and final drive motors in this informative guide.

Atravel motoris a part of an excavator"s hydraulic drive system, whose power source is the machine"s main hydraulic pump. As a result of the travel motors" power, the final drive is then able to use it and turn the power into torque. The travel motor is a key component in the function of an excavator by playing a major role in fueling the final drive motor. However, it doesn"t perform the same function as a final drive.

Speaking of which, a final drive comprises many gears and is located adjacent to, and works in conjunction with, the excavator"s travel motor. The integrated final drive motor"s purpose is to provide enough power to allow an excavator to turn its tracks on a construction site. There are two key integrated components of a final drive motor: the hydraulic travel motor and the final drive gear box.

The differences between travel motors and final drive motorscome down to their functions. While the two are related, it"s certainly important to know what sets them apart when getting new parts. When referring to a final drive motor, this typically means the hydraulic motor and the planetary gear hub, while a travel motor signifies only a hydraulic motor. If you are in need of Quality travel motors and final drive parts, Mini Final Drives is a great place to find the excavator parts you are looking for from top brands like Bobcat, John Deere, Caterpillar, and others.