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A Skid loader or skid steer loader is a rigid frame, engine-powered machine with lift arms used to attach a wide variety of labor-saving tools or attachments. Skid-steer loaders are four-wheel drive vehicles with the left-side drive wheels independent of the right-side drive wheels. By having each side be independent of the other, wheel speed and direction of rotation of the wheels determine the direction the loader will turn. Image File history File links Acap. ...
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Skid steer loaders can turn in their own tracks which makes them extremely maneuverable and valuable for applications that require a compact, agile loader.
Unlike in a conventional front loader, the lift arms in these machines lie alongside the driver with the major pivot points behind the driver's shoulders. Because of the operator's proximity to moving booms and buckets, early skid loaders were not as safe as conventional front loaders, particularly during entry and exit of the operator. Modern skid loaders have fully-enclosed cabs and other safety features to protect the operator from injury. Like other front loaders it can scrape material from one location to another, carry material in its bucket or load material into a truck or trailer. A Volvo L120E front loader. ...
Operation
A Skid Steer loader can sometimes be used in place of a large excavator by digging a hole from the inside. The skid loader first digs a ramp leading to the edge of the desired excavation. It then uses the ramp to carry material out of the hole. The skid loader reshapes the ramp making it steeper and longer as the excavation deepens. This method is particularly useful for digging under a structure where overhead clearance does not allow for the boom of a large excavator, e.g. for the purpose of digging a basement under an existing house. A tracked excavator by Daewoo. ...
The conventional bucket of many skid loaders can be replaced with a variety of specialized buckets or attachments, many powered by the loader's hydraulic system. Examples of such substitutions are backhoe, hydraulic breaker, pallet forks, angle broom, sweeper, auger, mower, snow blower, stump grinder, tree spade, trencher, dumping hopper, ripper, tillers, grapple, tilt, roller, snow blade, and wheel saw. Still newer attachments include cement mixers and wood chippers, such as the kind you can buy at your local hardware or construction store. It has been suggested that Backhoe fade be merged into this article or section. ...
Study of a man using an auger, for The Seven Sorrows of the Virgin, Albrecht Dürer, ca 1496 An auger is a device for moving material or liquid by means of a rotating helical flighting. ...
A heavy duty walk-behind two-stage snow blower. ...
A trencher is piece of construction equipment used to dig trenches, typically for laying pipes or cable, or for drainage. ...
History The very first three-wheeled, front-end loader was invented by brothers Cyril and Louis Keller (manufacturer) in their machinist blacksmith shop in Rothsay, Minnesota, in 1957. The Kellers built the loader to help a nearby farmer, Eddie Velo, mechanize the process of cleaning turkey manure from his two-story pole barn. The light and compact machine, with its rear caster wheel, was able to turn around within its own length, while performing the same tasks as a conventional front-end loader. Year 1957 (MCMLVII) was a common year starting on Tuesday (link displays the 1957 Gregorian calendar). ...
The Melroe brothers, whose Melroe Manufacturing Company was down the road in Gwinner, N.D., purchased the rights to the Keller loader in 1958 and hired the Kellers to continue refining their invention. As a result of this partnership, the M-200 Melroe self-propelled loader was introduced at the end of that year. It featured two independent front-drive wheels and a rear caster wheel, a 12.9-hp engine and a 750-lb. lift capacity. Just two years later, they replaced the caster wheel with a rear axle and introduced the M-400, the first four-wheel, skid-steer loader. It quickly became the Melroe Bobcat. The term "Bobcat" is sometimes used as a generic term for skid-steer loaders. The M-440 was powered by a 15.5-hp engine and had an 1100-lb. rated operating capacity. Skid-steer loader development continued into the mid-1960s with the introduction of the M600 loader. Year 1958 (MCMLVIII) was a common year starting on Wednesday (link will display full calendar) of the Gregorian calendar. ...
Bobcat is a line of farm and construction equipment. ...
The Case Uni-Loader
In 1968 Case bought the Universal Loader Company – the maker of the Uni-loader. They made one model the 150M which featured a 30HP Wisconsin engine, a variable speed drive and hand controls. The buckets were a quick attach pin-on bucket (much different that the quick attach used today). The variable speed was similar to a mechanism used on combines. It featured a belt and a hydraulically adjusted pulley mechanism that changed drive speed. The forward and reverse controls were a series of clutches and chains that required frequent adjusting.
From 1969-1972 Case made the 1530 and 1537 Uniloaders. These had a 1500 Lb. lift capacity and a 30 or 37HP Wisconsin engine. The features were almost identical to the 150M.
In 1972 Case introduced the 1737, 1740 and 1530B. The 1737 featured a Case built 159 gas engine and the 1740 featured a Case 188 diesel engine. The also featured a mechanical self leveling mechanism, a swing out rear door and a ROPS as standard equipment.
In 1974-75 Case introduced the 1800 series of skid steers – the 1816, 1830 and 1845. These were Case’s first hydrostatic units. The 1816 had a 16HP Tecumseh engine, the 1830 had a 30HP Renault engine and the 1845 had both the 45HP Case gas and diesel engines. The 1845 was a hit and started a reputation that continues today. A popular feature was the sliding axle chain adjustment. To replace the 1830 Case introduced the 1835 in 1980. This used the Case gas and diesel engines that were so popular in the 1845. In 1982 Case introduced the B series loaders. Not much was changed. The 1835B’s instrument panel was moved to the right side of the ROPS (Roll-Over Protective Structure) and the hydraulic pump was improved. On the 1845B the instrument panel was moved to the right side of the ROPS. In 1985 Case replaced the popular 188 diesel engine with the 4-390 engine produced jointly with Cummins. This was introduced in the skid steers with the Case 1845C. In addition to the new engine it featured a quick coupler, servo hydrostatic controls and a slide forward ROPS for ease of service. In 1987 Case introduced the 1835C. It featured a three cylinder Teledyne engine. At this point Case did not intend to put the 4-390 engine into a smaller frame skid steer. Most dealers looked at the Teledyne engine and felt it was like the Renault. It did not sell. In 1989 Case introduced the 1840.
In the late 90's Case introduced the XT series with larger machines and a different frame and dropped the name uni-loader to use the more industry standard Skid Steer Loader.
In the years since, the skid-steer loader has experienced quite a few changes, including the development of a hydrostatic drive system, rollover protective cab structures, radius and vertical path lift-arm configurations, deluxe instrumentation and heating and air conditioning. There are also many more manufacturers producing thest versatile machines, such as, New Holland, John Deere, JCB, Gehl, Volvo and many others.
Other Compact Equipment Compact Excavator - The compact hydraulic excavator is somewhat unique from other construction equipment in that all movement and functions of the machine are accomplished through the transfer of hydraulic fluid. The compact excavator's work group and blade are activated by hydraulic fluid acting upon hydraulic cylinders. The excavator's slew (rotation) and travel functions are also activated by hydraulic fluid powering hydraulic motors. We dont have an article called Compact excavator Start this article Search for Compact excavator in. ...
In recent years, hydraulic excavator capabilities have expanded far beyond excavation tasks. With the advent of hydraulic powered attachments such as breakers, clamps, augers, and compactors, the excavator is frequently used in many applications other than excavation and actually serves as an effective attachment tool carrier. Many excavators feature quick-attach mounting systems for simplified attachment mounting, dramatically increasing the machine's utilization on the jobsite.
Mini Loaders - Mini skid-steer loaders or compact utility loaders are even smaller and include 'walk behind' cable or radio controlled skid loaders and the slightly larger platform skid loaders. Platform skid loaders have a small platform on the back instead of a seat for the operator to stand on. This radio control airplane is carrying a scale model of X-33 and is taking part in NASA research. ...
Education The National Association of Heavy Equipment Training Schools (NAHETS), established 2002, uses skid loader training schools and circuilum as a method to test and train users in the ability of skid loader use.
See also For the band, see Tractor (band). ...
A Caterpillar D10N bulldozer at work A bulldozer is a very powerful crawler (caterpillar tracked tractor) equipped with a blade. ...
A modern crawler type derrick crane with outriggers. ...
An excavator. ...
A tracked excavator by Daewoo. ...
Modern grader in use by the US military. ...
A Volvo L120E front loader. ...
External links - How Skid Steer Loaders and Multi Terrain Loaders work - from HowStuffWorks.com
- U.S. National Institute for Occupational Safety and Health Alert: Preventing Injuries and Deaths from Skid Steer Loaders. February 1998.
- National Skid Steer Loader Association Skidloader.org
- Skid Steer Bobcat Safety Procedures
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