unimog hydraulic pump free sample
There are three variants of transmission-driven power take-off available. For example, the rapid transmission power take-off with 4-hole flange can be used to drive hydraulic pumps. The rotational speed and direction of the power take-off are the same as the engine speed and its direction of rotation. For implement control from outside the cab, a remote control is also available. Programming of the maximum rotational speed prevents overstepping the permissible upper rotational speed limit.
Equally as powerful is the transmission-driven power take-off with 6-hole flange. For applications whereby a very high power take-up is required, such as for fire service pumps, the third variety – also with standardised 6-hole flange – offers an optimal solution. With a nominal engine speed of 2200 rpm, a working speed of up to 3606 rpm can be attained. Here, too, a remote control for use outside the vehicle is also available.
The Unimog ensures for itself the full range of possible applications not least through its well-proven transmission power take-offs - for example a fast one for hydraulic pumps and a very fast one for fire brigade pumps. Thanks to an optimised floor assembly, the transmission power take-offs are excellently accessible and are highly versatile.
Hydraulic pumps are mechanisms in hydraulic systems that move hydraulic fluid from point to point initiating the production of hydraulic power. Hydraulic pumps are sometimes incorrectly referred to as “hydrolic” pumps.
They are an important device overall in the hydraulics field, a special kind of power transmission which controls the energy which moving fluids transmit while under pressure and change into mechanical energy. Other kinds of pumps utilized to transmit hydraulic fluids could also be referred to as hydraulic pumps. There is a wide range of contexts in which hydraulic systems are applied, hence they are very important in many commercial, industrial, and consumer utilities.
“Power transmission” alludes to the complete procedure of technologically changing energy into a beneficial form for practical applications. Mechanical power, electrical power, and fluid power are the three major branches that make up the power transmission field. Fluid power covers the usage of moving gas and moving fluids for the transmission of power. Hydraulics are then considered as a sub category of fluid power that focuses on fluid use in opposition to gas use. The other fluid power field is known as pneumatics and it’s focused on the storage and release of energy with compressed gas.
"Pascal"s Law" applies to confined liquids. Thus, in order for liquids to act hydraulically, they must be contained within a system. A hydraulic power pack or hydraulic power unit is a confined mechanical system that utilizes liquid hydraulically. Despite the fact that specific operating systems vary, all hydraulic power units share the same basic components. A reservoir, valves, a piping/tubing system, a pump, and actuators are examples of these components. Similarly, despite their versatility and adaptability, these mechanisms work together in related operating processes at the heart of all hydraulic power packs.
The hydraulic reservoir"s function is to hold a volume of liquid, transfer heat from the system, permit solid pollutants to settle, and aid in releasing moisture and air from the liquid.
Mechanical energy is changed to hydraulic energy by the hydraulic pump. This is accomplished through the movement of liquid, which serves as the transmission medium. All hydraulic pumps operate on the same basic principle of dispensing fluid volume against a resistive load or pressure.
Hydraulic valves are utilized to start, stop, and direct liquid flow in a system. Hydraulic valves are made of spools or poppets and can be actuated hydraulically, pneumatically, manually, electrically, or mechanically.
The end result of Pascal"s law is hydraulic actuators. This is the point at which hydraulic energy is transformed back to mechanical energy. This can be accomplished by using a hydraulic cylinder to transform hydraulic energy into linear movement and work or a hydraulic motor to transform hydraulic energy into rotational motion and work. Hydraulic motors and hydraulic cylinders, like hydraulic pumps, have various subtypes, each meant for specific design use.
The essence of hydraulics can be found in a fundamental physical fact: fluids are incompressible. (As a result, fluids more closely resemble solids than compressible gasses) The incompressible essence of fluid allows it to transfer force and speed very efficiently. This fact is summed up by a variant of "Pascal"s Principle," which states that virtually all pressure enforced on any part of a fluid is transferred to every other part of the fluid. This scientific principle states, in other words, that pressure applied to a fluid transmits equally in all directions.
Furthermore, the force transferred through a fluid has the ability to multiply as it moves. In a slightly more abstract sense, because fluids are incompressible, pressurized fluids should keep a consistent pressure just as they move. Pressure is defined mathematically as a force acting per particular area unit (P = F/A). A simplified version of this equation shows that force is the product of area and pressure (F = P x A). Thus, by varying the size or area of various parts inside a hydraulic system, the force acting inside the pump can be adjusted accordingly (to either greater or lesser). The need for pressure to remain constant is what causes force and area to mirror each other (on the basis of either shrinking or growing). A hydraulic system with a piston five times larger than a second piston can demonstrate this force-area relationship. When a force (e.g., 50lbs) is exerted on the smaller piston, it is multiplied by five (e.g., 250 lbs) and transmitted to the larger piston via the hydraulic system.
Hydraulics is built on fluids’ chemical properties and the physical relationship between pressure, area, and force. Overall, hydraulic applications allow human operators to generate and exert immense mechanical force with little to no physical effort. Within hydraulic systems, both oil and water are used to transmit power. The use of oil, on the other hand, is far more common, owing in part to its extremely incompressible nature.
Pressure relief valves prevent excess pressure by regulating the actuators’ output and redirecting liquid back to the reservoir when necessary. Directional control valves are used to change the size and direction of hydraulic fluid flow.
While hydraulic power transmission is remarkably useful in a wide range of professional applications, relying solely on one type of power transmission is generally unwise. On the contrary, the most efficient strategy is to combine a wide range of power transmissions (pneumatic, hydraulic, mechanical, and electrical). As a result, hydraulic systems must be carefully embedded into an overall power transmission strategy for the specific commercial application. It is necessary to invest in locating trustworthy and skilled hydraulic manufacturers/suppliers who can aid in the development and implementation of an overall hydraulic strategy.
The intended use of a hydraulic pump must be considered when selecting a specific type. This is significant because some pumps may only perform one function, whereas others allow for greater flexibility.
The pump"s material composition must also be considered in the application context. The cylinders, pistons, and gears are frequently made of long-lasting materials like aluminum, stainless steel, or steel that can withstand the continuous wear of repeated pumping. The materials must be able to withstand not only the process but also the hydraulic fluids. Composite fluids frequently contain oils, polyalkylene glycols, esters, butanol, and corrosion inhibitors (though water is used in some instances). The operating temperature, flash point, and viscosity of these fluids differ.
In addition to material, manufacturers must compare hydraulic pump operating specifications to make sure that intended utilization does not exceed pump abilities. The many variables in hydraulic pump functionality include maximum operating pressure, continuous operating pressure, horsepower, operating speed, power source, pump weight, and maximum fluid flow. Standard measurements like length, rod extension, and diameter should be compared as well. Because hydraulic pumps are used in lifts, cranes, motors, and other heavy machinery, they must meet strict operating specifications.
It is critical to recall that the overall power generated by any hydraulic drive system is influenced by various inefficiencies that must be considered in order to get the most out of the system. The presence of air bubbles within a hydraulic drive, for example, is known for changing the direction of the energy flow inside the system (since energy is wasted on the way to the actuators on bubble compression). Using a hydraulic drive system requires identifying shortfalls and selecting the best parts to mitigate their effects. A hydraulic pump is the "generator" side of a hydraulic system that initiates the hydraulic procedure (as opposed to the "actuator" side that completes the hydraulic procedure). Regardless of disparities, all hydraulic pumps are responsible for displacing liquid volume and transporting it to the actuator(s) from the reservoir via the tubing system. Some form of internal combustion system typically powers pumps.
While the operation of hydraulic pumps is normally the same, these mechanisms can be split into basic categories. There are two types of hydraulic pumps to consider: gear pumps and piston pumps. Radial and axial piston pumps are types of piston pumps. Axial pumps produce linear motion, whereas radial pumps can produce rotary motion. The gear pump category is further subdivided into external gear pumps and internal gear pumps.
Each type of hydraulic pump, regardless of piston or gear, is either double-action or single-action. Single-action pumps can only pull, push, or lift in one direction, while double-action pumps can pull, push, or lift in multiple directions.
Vane pumps are positive displacement pumps that maintain a constant flow rate under varying pressures. It is a pump that self-primes. It is referred to as a "vane pump" because the effect of the vane pressurizes the liquid.
This pump has a variable number of vanes mounted onto a rotor that rotates within the cavity. These vanes may be variable in length and tensioned to maintain contact with the wall while the pump draws power. The pump also features a pressure relief valve, which prevents pressure rise inside the pump from damaging it.
Internal gear pumps and external gear pumps are the two main types of hydraulic gear pumps. Pumps with external gears have two spur gears, the spurs of which are all externally arranged. Internal gear pumps also feature two spur gears, and the spurs of both gears are internally arranged, with one gear spinning around inside the other.
Both types of gear pumps deliver a consistent amount of liquid with each spinning of the gears. Hydraulic gear pumps are popular due to their versatility, effectiveness, and fairly simple design. Furthermore, because they are obtainable in a variety of configurations, they can be used in a wide range of consumer, industrial, and commercial product contexts.
Hydraulic ram pumps are cyclic machines that use water power, also referred to as hydropower, to transport water to a higher level than its original source. This hydraulic pump type is powered solely by the momentum of moving or falling water.
Ram pumps are a common type of hydraulic pump, especially among other types of hydraulic water pumps. Hydraulic ram pumps are utilized to move the water in the waste management, agricultural, sewage, plumbing, manufacturing, and engineering industries, though only about ten percent of the water utilized to run the pump gets to the planned end point.
Despite this disadvantage, using hydropower instead of an external energy source to power this kind of pump makes it a prominent choice in developing countries where the availability of the fuel and electricity required to energize motorized pumps is limited. The use of hydropower also reduces energy consumption for industrial factories and plants significantly. Having only two moving parts is another advantage of the hydraulic ram, making installation fairly simple in areas with free falling or flowing water. The water amount and the rate at which it falls have an important effect on the pump"s success. It is critical to keep this in mind when choosing a location for a pump and a water source. Length, size, diameter, minimum and maximum flow rates, and speed of operation are all important factors to consider.
Hydraulic water pumps are machines that move water from one location to another. Because water pumps are used in so many different applications, there are numerous hydraulic water pump variations.
Water pumps are useful in a variety of situations. Hydraulic pumps can be used to direct water where it is needed in industry, where water is often an ingredient in an industrial process or product. Water pumps are essential in supplying water to people in homes, particularly in rural residences that are not linked to a large sewage circuit. Water pumps are required in commercial settings to transport water to the upper floors of high rise buildings. Hydraulic water pumps in all of these situations could be powered by fuel, electricity, or even by hand, as is the situation with hydraulic hand pumps.
Water pumps in developed economies are typically automated and powered by electricity. Alternative pumping tools are frequently used in developing economies where dependable and cost effective sources of electricity and fuel are scarce. Hydraulic ram pumps, for example, can deliver water to remote locations without the use of electricity or fuel. These pumps rely solely on a moving stream of water’s force and a properly configured number of valves, tubes, and compression chambers.
Electric hydraulic pumps are hydraulic liquid transmission machines that use electricity to operate. They are frequently used to transfer hydraulic liquid from a reservoir to an actuator, like a hydraulic cylinder. These actuation mechanisms are an essential component of a wide range of hydraulic machinery.
There are several different types of hydraulic pumps, but the defining feature of each type is the use of pressurized fluids to accomplish a job. The natural characteristics of water, for example, are harnessed in the particular instance of hydraulic water pumps to transport water from one location to another. Hydraulic gear pumps and hydraulic piston pumps work in the same way to help actuate the motion of a piston in a mechanical system.
Despite the fact that there are numerous varieties of each of these pump mechanisms, all of them are powered by electricity. In such instances, an electric current flows through the motor, which turns impellers or other devices inside the pump system to create pressure differences; these differential pressure levels enable fluids to flow through the pump. Pump systems of this type can be utilized to direct hydraulic liquid to industrial machines such as commercial equipment like elevators or excavators.
Hydraulic hand pumps are fluid transmission machines that utilize the mechanical force generated by a manually operated actuator. A manually operated actuator could be a lever, a toggle, a handle, or any of a variety of other parts. Hydraulic hand pumps are utilized for hydraulic fluid distribution, water pumping, and various other applications.
Hydraulic hand pumps may be utilized for a variety of tasks, including hydraulic liquid direction to circuits in helicopters and other aircraft, instrument calibration, and piston actuation in hydraulic cylinders. Hydraulic hand pumps of this type use manual power to put hydraulic fluids under pressure. They can be utilized to test the pressure in a variety of devices such as hoses, pipes, valves, sprinklers, and heat exchangers systems. Hand pumps are extraordinarily simple to use.
Each hydraulic hand pump has a lever or other actuation handle linked to the pump that, when pulled and pushed, causes the hydraulic liquid in the pump"s system to be depressurized or pressurized. This action, in the instance of a hydraulic machine, provides power to the devices to which the pump is attached. The actuation of a water pump causes the liquid to be pulled from its source and transferred to another location. Hydraulic hand pumps will remain relevant as long as hydraulics are used in the commerce industry, owing to their simplicity and easy usage.
12V hydraulic pumps are hydraulic power devices that operate on 12 volts DC supplied by a battery or motor. These are specially designed processes that, like all hydraulic pumps, are applied in commercial, industrial, and consumer places to convert kinetic energy into beneficial mechanical energy through pressurized viscous liquids. This converted energy is put to use in a variety of industries.
Hydraulic pumps are commonly used to pull, push, and lift heavy loads in motorized and vehicle machines. Hydraulic water pumps may also be powered by 12V batteries and are used to move water out of or into the desired location. These electric hydraulic pumps are common since they run on small batteries, allowing for ease of portability. Such portability is sometimes required in waste removal systems and vehiclies. In addition to portable and compact models, options include variable amp hour productions, rechargeable battery pumps, and variable weights.
While non rechargeable alkaline 12V hydraulic pumps are used, rechargeable ones are much more common because they enable a continuous flow. More considerations include minimum discharge flow, maximum discharge pressure, discharge size, and inlet size. As 12V batteries are able to pump up to 150 feet from the ground, it is imperative to choose the right pump for a given use.
Air hydraulic pumps are hydraulic power devices that use compressed air to stimulate a pump mechanism, generating useful energy from a pressurized liquid. These devices are also known as pneumatic hydraulic pumps and are applied in a variety of industries to assist in the lifting of heavy loads and transportation of materials with minimal initial force.
Air pumps, like all hydraulic pumps, begin with the same components. The hydraulic liquids, which are typically oil or water-based composites, require the use of a reservoir. The fluid is moved from the storage tank to the hydraulic cylinder via hoses or tubes connected to this reservoir. The hydraulic cylinder houses a piston system and two valves. A hydraulic fluid intake valve allows hydraulic liquid to enter and then traps it by closing. The discharge valve is the point at which the high pressure fluid stream is released. Air hydraulic pumps have a linked air cylinder in addition to the hydraulic cylinder enclosing one end of the piston.
The protruding end of the piston is acted upon by a compressed air compressor or air in the cylinder. When the air cylinder is empty, a spring system in the hydraulic cylinder pushes the piston out. This makes a vacuum, which sucks fluid from the reservoir into the hydraulic cylinder. When the air compressor is under pressure, it engages the piston and pushes it deeper into the hydraulic cylinder and compresses the liquids. This pumping action is repeated until the hydraulic cylinder pressure is high enough to forcibly push fluid out through the discharge check valve. In some instances, this is connected to a nozzle and hoses, with the important part being the pressurized stream. Other uses apply the energy of this stream to pull, lift, and push heavy loads.
Hydraulic piston pumps transfer hydraulic liquids through a cylinder using plunger-like equipment to successfully raise the pressure for a machine, enabling it to pull, lift, and push heavy loads. This type of hydraulic pump is the power source for heavy-duty machines like excavators, backhoes, loaders, diggers, and cranes. Piston pumps are used in a variety of industries, including automotive, aeronautics, power generation, military, marine, and manufacturing, to mention a few.
Hydraulic piston pumps are common due to their capability to enhance energy usage productivity. A hydraulic hand pump energized by a hand or foot pedal can convert a force of 4.5 pounds into a load-moving force of 100 pounds. Electric hydraulic pumps can attain pressure reaching 4,000 PSI. Because capacities vary so much, the desired usage pump must be carefully considered. Several other factors must also be considered. Standard and custom configurations of operating speeds, task-specific power sources, pump weights, and maximum fluid flows are widely available. Measurements such as rod extension length, diameter, width, and height should also be considered, particularly when a hydraulic piston pump is to be installed in place of a current hydraulic piston pump.
Hydraulic clutch pumps are mechanisms that include a clutch assembly and a pump that enables the user to apply the necessary pressure to disengage or engage the clutch mechanism. Hydraulic clutches are crafted to either link two shafts and lock them together to rotate at the same speed or detach the shafts and allow them to rotate at different speeds as needed to decelerate or shift gears.
Hydraulic pumps change hydraulic energy to mechanical energy. Hydraulic pumps are particularly designed machines utilized in commercial, industrial, and residential areas to generate useful energy from different viscous liquids pressurization. Hydraulic pumps are exceptionally simple yet effective machines for moving fluids. "Hydraulic" is actually often misspelled as "Hydralic". Hydraulic pumps depend on the energy provided by hydraulic cylinders to power different machines and mechanisms.
There are several different types of hydraulic pumps, and all hydraulic pumps can be split into two primary categories. The first category includes hydraulic pumps that function without the assistance of auxiliary power sources such as electric motors and gas. These hydraulic pump types can use the kinetic energy of a fluid to transfer it from one location to another. These pumps are commonly called ram pumps. Hydraulic hand pumps are never regarded as ram pumps, despite the fact that their operating principles are similar.
The construction, excavation, automotive manufacturing, agriculture, manufacturing, and defense contracting industries are just a few examples of operations that apply hydraulics power in normal, daily procedures. Since hydraulics usage is so prevalent, hydraulic pumps are unsurprisingly used in a wide range of machines and industries. Pumps serve the same basic function in all contexts where hydraulic machinery is used: they transport hydraulic fluid from one location to another in order to generate hydraulic energy and pressure (together with the actuators).
Elevators, automotive brakes, automotive lifts, cranes, airplane flaps, shock absorbers, log splitters, motorboat steering systems, garage jacks and other products use hydraulic pumps. The most common application of hydraulic pumps in construction sites is in big hydraulic machines and different types of "off-highway" equipment such as excavators, dumpers, diggers, and so on. Hydraulic systems are used in other settings, such as offshore work areas and factories, to power heavy machinery, cut and bend material, move heavy equipment, and so on.
Fluid’s incompressible nature in hydraulic systems allows an operator to make and apply mechanical power in an effective and efficient way. Practically all force created in a hydraulic system is applied to the intended target.
Because of the relationship between area, pressure, and force (F = P x A), modifying the force of a hydraulic system is as simple as changing the size of its components.
Hydraulic systems can transfer energy on an equal level with many mechanical and electrical systems while being significantly simpler in general. A hydraulic system, for example, can easily generate linear motion. On the contrary, most electrical and mechanical power systems need an intermediate mechanical step to convert rotational motion to linear motion.
Hydraulic systems are typically smaller than their mechanical and electrical counterparts while producing equivalents amounts of power, providing the benefit of saving physical space.
Hydraulic systems can be used in a wide range of physical settings due to their basic design (a pump attached to actuators via some kind of piping system). Hydraulic systems could also be utilized in environments where electrical systems would be impractical (for example underwater).
By removing electrical safety hazards, using hydraulic systems instead of electrical power transmission improves relative safety (for example explosions, electric shock).
The amount of power that hydraulic pumps can generate is a significant, distinct advantage. In certain cases, a hydraulic pump could generate ten times the power of an electrical counterpart. Some hydraulic pumps (for example, piston pumps) cost more than the ordinary hydraulic component. These drawbacks, however, can be mitigated by the pump"s power and efficiency. Despite their relatively high cost, piston pumps are treasured for their strength and capability to transmit very viscous fluids.
Handling hydraulic liquids is messy, and repairing leaks in a hydraulic pump can be difficult. Hydraulic liquid that leaks in hot areas may catch fire. Hydraulic lines that burst may cause serious injuries. Hydraulic liquids are corrosive as well, though some are less so than others. Hydraulic systems need frequent and intense maintenance. Parts with a high factor of precision are frequently required in systems. If the power is very high and the pipeline cannot handle the power transferred by the liquid, the high pressure received by the liquid may also cause work accidents.
Even though hydraulic systems are less complex than electrical or mechanical systems, they are still complex systems that should be handled with caution. Avoiding physical contact with hydraulic systems is an essential safety precaution when engaging with them. Even when a hydraulic machine is not in use, active liquid pressure within the system can be a hazard.
Inadequate pumps can cause mechanical failure in the place of work that can have serious and costly consequences. Although pump failure has historically been unpredictable, new diagnostic technology continues to improve on detecting methods that previously relied solely on vibration signals. Measuring discharge pressures enables manufacturers to forecast pump wear more accurately. Discharge sensors are simple to integrate into existing systems, increasing the hydraulic pump"s safety and versatility.
Hydraulic pumps are devices in hydraulic systems that move hydraulic fluid from point to point, initiating hydraulic power production. They are an important device overall in the hydraulics field, a special kind of power transmission that controls the energy which moving fluids transmit while under pressure and change into mechanical energy. Hydraulic pumps are divided into two categories namely gear pumps and piston pumps. Radial and axial piston pumps are types of piston pumps. Axial pumps produce linear motion, whereas radial pumps can produce rotary motion. The construction, excavation, automotive manufacturing, agriculture, manufacturing, and defense contracting industries are just a few examples of operations that apply hydraulics power in normal, daily procedures.
"Atkinson Vos are the absolute experts on UNIMOGS in my opinion. They offer wonderful advice apart from sourcing spares and thereby make things so much easier"
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U 300/U 400/U 500The Unimog ConceptGetting through where others give upWhere even all-wheel drive trucks reach their limits and tractors can’t go any further, a totally differentkind of work and tractor vehicle has to take over: the Unimog. It embodies the meaning of versatility and viability on four wheels. The Mercedes-Benz Unimog is a vehicle in a league of its own. It providessolutions which no other vehicle worldwide can offer. The Unimog is much more versatile than any other with its attachment and mounting areas at the front, middle and rear. It is also much more at homeon off-road terrain than any other vehicle, and can drive at fast speeds on roads as a transporter. TheUnimog is an uncompromising professional for uncompromising professionals. Superior in every situation and over any terrain.ContentsModel Range U 300/U 400/U 500 4 – 5Chassis Expertise 6 – 9Vehicle Drive 10 – 13System and Implement-Carrying Expertise 14 – 17Mechanical Drives for Implements 18 – 19Hydraulic Drives for Implements 20 – 23Easy to Operate and Ergonomic 24 – 25Panoramic Cab 26 – 27Economic Efficiency andthe Environment 28 – 29Worldwide Service 30 – 31Looking to the Future 32 – 33Versatility beyond CompareWhether mowing, clearing or cutting snow, gritting, cleaning, sweepingor transporting – the Unimog U 300/U 400/U 500 can do it all: It can beequipped more individually than any other mass-produced vehicle. Fourattachment and mounting areas provide almost endless possibilities. It is more versatile and reliable off-road than any all-wheel drive truck, with its top speed of up to 90 km/h, faster and proven to use up to 40 % less fuel than a tractor. As a professional implement carrier over 7.5 t max. weight, the Unimog U 300/U 400/U 500 gives unrivalled top performances. Designed especially for professionals who appreciate top performance and cost-effective running in a single vehicle, all-year-round.
Model Range U 300/U 400/U 500 5Chassis ExpertiseWhere others get wheelspin, the Unimog really gets going. With portal axles, permanent all-wheel drive, differential locks,extreme axle articulation and reduction gears for off-road the U 300/U 400/U 500 can do everything you expect of a true Unimog in difficult terrain. It accepts every challenge – also off the beaten track.
Portal axles. Cope with any kind of terrain. Portal axles Permanent all-wheel drive. Hauling power. The standard Coil springs. Always in contact with the ground. Pro- give the Unimog U 300/U 400/U 500 its outstanding permanent mechanical all-wheel drive gives top gressively extended coil springs with telescopic shock ground clearance for difficult off-road conditions and – t raction and directional stability, for example in w inter absorbers give the vehicle the most comfortablethanks to its high maximum axle load – even with conditions. When maximum traction is required in suspension irrespective of load. All four wheels remainattached or mounted implements. The axle steering guide treacherous off-road terrain, the inter-axle differential in contact with the ground even when off-road due to with integrated anti-roll bars ensures stable handling, and the differentials on each axle can be locked while long shock courses and great axle articulation. has only slight roll and pitch and excellent directional on the move by means of a rotary switch without inter stability during spring extension and compression. rupting tractive power. •Very comfortable ride •Minimal self-steering characteristics•High ground clearance with low vehicle •Low wear and tear •Optimum suspension adjustment centre of gravity •Excellent handling stability and safety during to all vehicle loads•Axle tube and differential positioned over the winter operations wheel centre are much smaller than in a truck •100 % locking effect at both axles for non-slip•Good cornering characteristics even with full load power transmission to all four wheels
Single tyres. Just a multitude of uses. Unlike conventional Tirecontrol (tyre pressure regulation system). Always ABS and ALB. More intelligent braking. The standardall-wheel drive trucks, the rear axle of the Unimog is driving with the correct tyre pressure. A further anti-lock braking system guarantees increased safety andfitted with single and not twin tyres. This gives better plus when driving over challenging or soft terrain: driving stability. It can also be switched off when drivingt raction, thanks to lower rolling resistance due to the Tirecontrol, the optional system for adjusting tyre off-road or the differential locks opened automatically. fact that the rear wheels follow the compacted tracks of pressures quickly and flexibly to suit changing surface The automatic load-sensitive braking system (ALB) makes the front wheels. The wide range of tyre sizes and types conditions while on the move. The air pressure is sure the Unimog brakes steadily according to its load, means that the Unimog can be fitted out ideally for every lowered at the touch of a button to increase the tyre even on long downhill stretches. operation. contact area, thus preventing it from sinking into soft ground and increasing traction. •More safety through excellent driving stability•Wide range of different tyres – from small, and steering ability high-pressure truck tyres to large-volume, •Excellent traction, effective self-cleaning and •ABS control for each individual wheel low-pressure agricultural tyres less noticeable tracks off-road •ALB – braking force control depending on the load•For winter service or difficult terrain, chains •Flexible adaptation of inner tyre pressure to on-road can be fitted depending on tyre size and off-road conditions while in motion•Less slippage, saves fuel and spares ground •Tyre damage due to too low or too high air pressure surface from damage can be avoided •Avoids damage to farmland by using lower tyre pressure
Chassis Expertise 9Vehicle DriveWith the Mercedes-Benz Unimog U 300/U 400/U 500you really get going. And have the right amount of powerfor the job at hand. Even with heavy loads or at a snail’space – and with no slipping clutches. That means lesswear and tear – also on your nerves.
With a total of 24 forward and 22 or 24 reverse gears, the Unimog U 300/U 400/U 500 provides optimal working and driving speeds for every job Rocker switch in the centre console for the basic, working and crawler gears
1. UG 100 Transmission 3.Adustable pump for hydro-drive 2.Intermediate Gears 4.Adjustable motor for hydro-drive (Wheel Gear) 5.Oil filter
Vehicle Drive 13System and Implement-Carrying ExpertiseOne for almost all: with its diverse attachment and mounting areas, theUnimog U 300/U 400/U 500 has a uniquely versatile platform for variousimplement combinations and a multitude of purposes. That is what makes it so cost-effective for all-year-round work. Thanks to many decades of cooperation between Mercedes-Benz and implement/body manufacturers,expert knowledge and 60 years experience in development can be com-bined to produce your Unimog. Advantages you can feel metre after metre.
14 Three attachment areas. More efficient operation. Three attachment areas – the front mounting plate, between the axles and at the rear – allow various implements to be attached. Simultaneous multitasking with the Unimog is therefore simple – fast, easy and cost-effective.
One mounting area, three options. Always the right imple- ment solution. With or without the drop-side body, the mounting area with its three options makes the Unimog U 300/U 400/U 500 extremely versatile. If necessary, the tipper body can simply be taken off the tipping c ylinder with the quick-release catch to allow much higher payloads.
Frame design. Safe, cost-effective, robust. The basis Defined attachment areas. For fast and easy fitting. for the cost-effective all-year-round operation of the On the Unimog, all the necessary attachment points and Unimog U 300/U 400/U 500 as a professional off-roader mounting areas are preinstalled and compatible with implement carrier is its continuous, straight ladder- existing implements. type frame. It allows implements to be attached directly and easily. High bending and torsional resistance give •Developed ex works and coordinated with implement maximum stability. Integrated mounting positions and and body manufacturers hole patterns make attaching and mounting easier and •Simple assembly provide additional safety during extreme operations. •Defined load mounting points •Safeguarded against overload •Simple direct mounting on frame side members •Designed for maximum thrust and traction while ensuring good handling with and without implements •Designed for attaching several implements at the same time
System and Implement-Carrying Expertise 17Mechanical Implement DrivesThe robust Unimog U 300/U 400/U 500 can run imple-ments requiring a great deal of power off its mechanical frontpower take-off which can provide a continuous output of upto 150 kW. The drive element of the rear PTO also provides acontinuous output of 120 kW.
Front PTO for implements with a high output. Retrofit: rear PTO Unimog U 300/U 400/U 500: locations of front PTO (1), engine-mounted The socket to supply electricity for implements. Current collectionin standard configuration PTO (2) and high-speed transmission-mounted PTO (3) up to 40 A
Front power take-off. An extra plus for implements. and two PTO speeds (540 and 1,000 rpm), the rear power- •Operated using pull switches in the centre consoleImplements with high power consumption are best run take-off proves extremely efficient for operating wood or as an option by remote control d irectly by the powerful engine-driven front power chippers, large area mowers, loading trailers or balers. take-off. With its power output of 150 kW, this standard Parameterisable on-board electronics. Intelligent oil-cooled PTO has a 44.4 mm (1 3/4") spline profile for •Operated from control console in the cab on-board powerpack. The parameter settings of thehigh torque transmission and is extremely efficient. The powerpack make straightforward, practical program-digital rpm display and electronic engine control allows Auxiliary drives. All power options included. The Unimog ming of the vehicle’s basic configuration possible.the PTO speed to be adjusted sensitively between 420 and U 300/U 400/U 500 has both an engine-mounted and a From governing the engine speed or reverse shift lock1,000 rpm with extreme precision and infinitely variable. transmission-mounted auxiliary drive. The engine-mount- to the engine start-stop function via remote control ed auxiliary drive generally runs power hydraulics, but through the implement connector sockets. The result•Direct mechanical drive using the engine powertrain is also used to operate implements with hydrostatic drives is maximum operational safety for man and machine.•No interruption in the power flow during gear changes such as verge or asphalt cutters with power hydraulics, It also facilitates subsequent modifications when equip-•Extremely efficient and high continuous output designed by the implement manufacturer. The transmis- ment or operating profiles are changed. sion-mounted auxiliary drive with standardised flangeRear power take-off. The U 300/U 400/U 500 can be on the manual transmission is suitable for operating •Practical basic settings for the on-boardequipped as an option with a rear power take-off in stand- standard hydraulic pumps for cranes or aerial platforms. electronics can be programmed easily and individuallyard configuration for operating large, rear-mounted im The output speed and direction of rotation are identical •Drivers are relieved of strain in criticalplements. With a continuous output of as much as 120 kW to the engine’s speed and direction of rotation. driving situations
Mechanical Implement Drives 19Hydraulic Implement Drives andHydraulic Implement OperationDepending on the job, the Unimog U 300/U 400/U 500 has anintegrated dual-circuit hydraulic system or a high-performance dual- circuit hydraulic system at its disposal. This means that it has up to four completely independent hydraulic cycles available.
20The power hydraulic connections are coded by colour and number – perfect The gate-guided joystick gives you simple, convenient control The key pad shows the valves and connections arranged byfor connecting implements quickly and without any error over all implement movements colour and number
Hydraulic design. Independent and versatile. The power- Simple connection, straightforward operation. A few Working hydraulics. Made for all popular implements. ful hydraulic system is crucial to the high workload when quick steps are all it takes. Hydraulic connections and Circuit I controls up to eight implement movements with operating multiple implements. With two circuits each in plugs are coded by colour and number to expedite imple- a system pressure of 200 bar (24 l/min) via four double- the working hydraulic and power hydraulic circuits, the ment connection. Standardised couplings make it easy acting valves, or it drives hydraulic motors running at low Unimog U 300/U 400/U 500 allows a total of four hydraulic to swap implements. Plus, the floating position can be power. By combining circuits I + II (24 l/min + 48 l/min) circuits to be used independently of one another at the activated separately for each individual valve. The electric together, implements can be actuated and hydraulic motorssame time – the ideal starting point for the Unimog’s controls for the hydraulic functions are just as simple and driven independently of one another. This providesversatile operations. are soon done intuitively. you with a total of up to 240 bar and output for powering implements.•Four hydraulic circuits – for outputs varying from 24 to •Key pad, hydraulic plugs and hydraulic connections 125 l/min and operating pressures from 200 to 300 bar coded by colour and number •Two independent hydraulic circuits: circuit I for•Five basic hydraulic packages and additional hydraulic •Electronic gate-guided joystick for controlling controlling implement movements, circuit II connections to choose from up to eight movements for driving hydraulic motors •Rocker switch for valve selection •Safe, convenient control of all implement movements •Finger-operated buttons for activating the float setting •Fitted ex works, reliable operation, or switching from connection one–four to five–eight spare parts supply guaranteed •Press switches for operating the permanent consumers •Changeover valve for flexible flow switching (circuits III and IV) between circuits I and II or combining oil flow •Emergency-stop switch for fast disablement of all valves of circuits I and II
22 48 l/min, 200 bar Working hydraulics Circuit I
24 + 48 l/min, 240 bar 72 l/min, 240 bar Circuit I + Circuit II Working hydraulics Sum of circuits I + II
90 l/min, 280 bar Circuit IV – VarioPower® Power hydraulics open circuit
125 l/min, 300 bar Circuit III – VarioPower® Power hydraulics closed circuit
Power hydraulics. Power on tap. VarioPower® powerhydraulics eliminates the need for separate hydraulic PTO pumps or diesel engines to drive implements. The open system (circuit IV) provides 42 kW, making it suitable for quickly discharging larger quantities of oil at high pressure or driving hydraulic motors. Maximum output is delivered by the closed system (circuit III): its 300 bar and 62 kW are sufficient for driving hydraulic motors in the upper capacity range.
The VarioPower® power hydraulics are housed in the tipper body sub-frame and can be removed together with the sub-frame and implement if necessary
Hydraulic Implement Drives 23Easy to Operate andErgonomicThe Unimog U 300/U 400/U 500 cab provides everythingthe driver needs to do his everyday work as ergonomicallyand safely as possible. And the combined air-conditioning,heating and ventilating system makes sure he always feelscomfortable.
Compact dimensions. Maneouvrable and exceptionally tough. With widths starting at 2.15 m, a compact front end of just 1.15 m and a turning circle starting at 13.7 m, the Unimog U 300/U 400/U 500 is ideal for working in confined areas. Further advantages over a truck include its multiple mounting areas and the higher load capacity of the front axle.
Optional equipment. Geared to your requirements. Mowing door. Instead of the standard co-driver’s door, Driver-oriented design has top priority for the Unimog the Unimog can be fitted with an optional mowing door. U 300/U 400/U 500. This is clearly shown by the special With its enlarged panoramic side windows made of heat- options which ease day-to-day operations tremendously. insulated glass and wipers, it is perfect for mowing jobs, whether with one or two operators. Three examples: VarioPilot® transferable steering. The steering column Swivel seat. The air-sprung swivel seat is the ideal including instrument panel and pedals can be easily addition to the mowing door. It allows implements to be moved from left to right. Drivers get the best view of operated with ease, giving the best view of the work area the working area, can exit the vehicle on the side away to the right. The seat can be turned slightly if the driver from the traffic and enjoy easy one-man operation. is working alone, or by a full 90° with two-man operation.
Panoramic Cab 27Economic Efficiency andthe EnvironmentThe Unimog U 300/U 400/U 500 is not just ready for anysituation or terrain, it is also designed for a long cost-effectiveworking life. The particularly clean BlueTec® engines fulfilthe Euro 5 emission standards and use up to 40 % less fuel.According to a German Agricultural Society (DLG) comparative study, the amount of fuel saved can be up to 13 litres per working hour compared to an agricultural tractor. Thanks to the lower level of consumption, CO2 and particle emissions are also reduced by up to 40 %. Reliability, a long life span, cost-effective running and ecological conservation round off the Unimog’s unique concept as a vehicle providing for the future.
Clean, safe, economical. BlueTec® diesel technology. Adaptable engine management. The driving and working air intake is positioned where dust levels are lowest. TheBlueTec® is the new SCR (Selective Catalytic Reduction) mode. The engine characteristics can be adjusted individu- thermostat-controlled radiator with hydraulic fan keeps thediesel technology from Mercedes-Benz. It lowers n itrogen ally to suit the operating mode at the touch of a button. In engine cool, even at low vehicle speeds and high workingoxide and particle emissions significantly as well as the driving mode on roads or for transporting loads, you performance. The large modular cooling system with itsoptimising fuel consumption, without any loss of engine benefit from its flexible torque. The working mode ensures open-order design is very maintenance-friendly due to power. An extra catalytic converter reduces the nitrogen minimal rpm speed deviations when operating imple- the removable cleaning grill which means that the Unimog oxide levels using the additive AdBlue, a non-toxic aque- ments or driving off-road, even with fluctuating loads. U 300/U 400/U 500 has no difficulties when working in ous solution which is fed from a separate tank. Apart extremely dusty conditions. from fulfilling the European Union’s strict directives for Always ready to give peak performance. The low- reducing vehicle emissions, the Unimog also offers a maintenance Euro 5 engines from M ercedes-Benz are •Low-maintenance engines from 110 kW (150 hp) low wear and tear and low maintenance system. Plus state-of-the art in every respect and perfectly equipped to 210 kW (286 hp) engines with a higher power output (depending on for a wide variety of tasks. From their direct injection •Low-emission, economical and quiet-running the model). Thus a future-proof solution is guaranteed. and three-valve technology, turbocharger and intercooler, •Sharp reduction in nitrogen oxide and particle emissions to their steep torque curve, constant output over a wide •Improved combustion efficiency rpm range and high power reserves. The combustion- •Reduced fuel consumption
Worldwide Service from Mercedes-BenzWhere there is a Unimog on the road, then we are not far away. Thanks to more than 1,000 servicestations worldwide, your Unimog Partner is easy to reach when you need him. With vehicle maintenance and other services which are just as reliable, flexible and progressive as the Mercedes-Benz Unimog itself. From our fast spare-parts service to repairs and maintenance up to a made-to-measure financing or leasing offer. And not just for your Unimog itself, but also for a whole range of bodies and implements. You can rely on us.
Would you like to find out more about the Unimog? Thensimply detach the postcard, fill it out and send it off.Or send us the postcard by fax: +49 (0) 721 1510125.
You want to get things moving?With the Unimog, you get much more than just a truck. The Unimog is a philosophy come true. Thereis hardly a sector or situation to be imagined where the Unimog cannot be used successfully – it hasproved this for decades. For very diverse tasks and needs, there are three model ranges to choose from.
You have got to know the Unimog U 300/U 400/U 500 in convincing features such as the flexible ladder-type framethis brochure. for great rigidity on the road and enormous torsional flexibility off the road, its superior all-wheel drive withAs a universal implement carrier, the Unimog U 20 with differential locks in both axles and its portal axles fora maximum weight of 7.5/9.3 t is perfect for the require- especially high ground clearance.ments of the municipal maintenance yard. It does not costany more than an up-market municipal tractor, but has all Do you have any questions, comments or suggestions onthe advantages of a all-wheel drive truck and the power the topic of Unimog? Or want to know what the Unimogreserves of a genuine Unimog. In short: maximum use can do for you? Then don’t hesitate to contact us. We arepotential throughout the whole year. looking forward to hearing from you!
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