Commercial Truck Tires For a Variety of Tasks

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Commercial truck tires are not just for ordinary vehicles. They are designed especially for class 6 – 8 trucks, based on the GVWR or gross vehicle weight rating in excess of 26,000 pounds or 13 tons. Usually this means at least three axles as well. Such vehicles are used in the public sector, construction, mining, and other forms of industry. Not only are these the biggest tires made, with diameters 25 inches or larger, but they are differentiated in their design according to their placement on the vehicle.

Slightly different specialty tires may be used for steerage, driving, and trailer hauling. The normal driving conditions for the truck will also determine the type of tire chosen. Long distance hauling will be different than regional traffic with stops and starts and lots of turning. Construction sites and off-road hauling present another set of requirements for properly working tires. Truck owners can today have a variety of choices in the quality and specificity of the tires they choose to use on their trucks. Companies such as Continental, Cooper, Firestone, Toya, and Bridgestone, just to name a few, all offer these custom designed commercial truck tires.

In spite of the high quality available in his tires, it remains the responsibility of the truck driver to check them daily. A huge majority of the accidents on the road today involve commercial vehicles and tire blow-outs can often be avoided by regular maintenance. Before driving the truck more than a mile, at the start of every new day, each tire should be checked for inflation and air pressure. By using a properly calibrated tire gauge, an accurate reading can be taken. Of course, if the gauge is dropped, it needs to be reset or replaced for correct measurement. Thumping the tire doesn’t work and is not a true reflection of air pressure within the tire. A brief but thorough hands-on inspection across the treads for chips and chunks completes the daily maintenance routine. Everyone would agree that a few minutes of precaution out-weighs the danger of accident and injury.

Commercial truck tires are rolling constantly on the more than 14 million miles of roads in the world. Whether they are making the long hauls across country, bussing residents around their city, transporting local goods, or lugging ore and boulders across construction sites, the longevity and safety of the tire has much to do with how it is chosen for a specific job and how it is maintained. Fortunately, it may well have a second life as a retread and have years more of service yet to offer.

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Source by Sanno Zaye

Peterbilt Trucks – From Chain Drive to the Peterbilt 379

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Peterbilt trucks are made by the Peterbilt Motors Company, which has its headquarters in Denton, Texas. The American truck manufacture was started in 1939 by then lumber entrepreneur and plywood maker, T.A. Peterman.

Peterbilt Trucks – The Early Years

Peterman was a man with a dream to get the truck business going stronger so he could get his logs to market easier and faster. At the time, Peterman was actually working towards that dream by rebuilding army trucks he bought at surplus, thus learning how to improve them. In 1938 he bought Fageol Motors in Oakland, California in order to use it to start making his custom made chain-driven trucks. The following year he started selling them to the public, which was the real beginning of Peterbilt Trucks.

During the 30s long haul trucking was becoming very popular. It was the Depression and many companies that built commercial trucks were losing ground and going out of business. That is how Peterman was able to get the Fageol Motors Company. Prior to his purchase of them, the company had been making heavy weight trucks and buses for 17 years.

Peterman built 14 trucks in 1939, but that number leapt to 82 the following year, demonstrating to Peterman that the trucking industry was definitely interested in the quality made trucks of Peterbilt. Peterman was famous for knowing exactly what the trucker wanted and needed because he sent his own engineers out to talk to truckers. They were required to know what the men in the field liked and disliked before designing a single new truck. Peterman also got the military contract during World War II to make heavy duty trucks. This helped him to get ready to re-enter the civilian market as well after the war.

After World War II, Peterbilt Trucks Marches Forward

Even death didn’t stop Peterbilt trucks. Peterman died in 1945. After his death, the company was inherited by Peterman’s widow, Ida. His wife promptly sold the company’s assets, but didn’t sell the property, to seven of the company’s managers with the thought of maintaining and building up the company. However, since she didn’t sell them the property, the new owners had to scramble for a new location several years later in 1958 when Ida said she was going to sell the land to build a shopping mall.

Due to this, the company changed hands and Peterbilt was bought by Paul Pigott, owner of the Pacific Car and Foundry. He built a brand new facility for the company in Newark, California, and in 1960 Peterbilt trucks were again being manufactured. Pigott kept the name even though he also owned Kenworth trucks and ran both companies. The ironic thing is that Peterbilt was his stiffest competitor, even though he actually owned both companies.

Peterbilt continues to grow strong

In 1960 Peterbilt put out 800 trucks and sales kept on increasing as more and more people began to trust and love the quality made trucks. The company was soon unable to make as many as the customers desired, so Peterbilt expanded to two manufacturing plants and built one in Madison, Tenn in 1969.

By 1973 Peterbilt was delivering more than 8,000 of its trucks and by 1975, it had opened up a version of Peterbilt in Canada. By 1980 it had another plant in Denton, Texas and by 1993 their headquarters was in California where it still is to this day. Denton become the sole manufacturing plant to build Peterbilt’s 362 COE model truck.

Peterbilt’s Truck Lines

Peterbilt lines originally had model numbers that started with a number 2, which stood for single axle models and a number 3 for those with a dual drive. However, by the late 1970s, they stopped doing this sort of distinction. Some of the more distinctive or well known models were:

– 200/265: This was a smaller truck that had a cab based on a Volkswagen MAN G90 and it is still being made in Brazil.

– 260/360: This is the actual first model of Peterbilt trucks.

– 280/350: This model was built between 1949 and 1957 and was known for its unique cycle style fenders in the front and having a long style grill that had vertical shutters on it.

-281/351: This version of the Peterbilt model of truck was made from 1954 to 1976. One of its main claims to fame is that a model 281 appeared in the Steven Spielberg 1971 movie, Duel, where an evil truck was trying to kill people. It was a 1950 year version of that model of the 281 Peterbilt truck.

– 282/352: This version of the Peterbilt trucks had a tilt-cab cab-over-engine and was the model that came out after the 351, which was a non-tilting cab-over style. It was called the Pacemaker after someone won a contest to name it and got a color television as a prize. The Pacemaker also was developed as a 352 model and won fame when it appeared on the Knight Rider TV show as the evil super truck named Goliath, as well as being the model that was being sung about in the truck song, Convoy.

– 358: This model was the company’s very first tilt hood style truck. It was sold until 1976.

– 359: This model of Petebilt truck was sold from 1967 to 1987. The 1100 series of these had a bulkhead style of door that is still in used today.

– 346: This is a very rare version of the Peterbilt brand and a mere 10 of these trucks were built from 1972 to 1975. It was meant to be used to mix concrete, or as a dump truck or snow plow type truck.

– 348: The model 348 was sold between 1970 and 1986 and had a sloped fiberglass hood for better visibility. It was the first fiberglass hood Peterbilt made.

– 353: The 353 replaced flat fender models and instead had pit style fenders. It was used in construction.

– 387: The 387 Peterbilt trucks were also made in 1976 to 1987. It had a heavy weight frame, flat fenders, undercab steps, big bumper and was used to carry coal.

– 362: The 362 became the Peterbilt flagship truck in 1981. It had two kinds of windshield wipers, one was a one-piece center style and the other had either three or two wipers. It also introduced a front axle that was set back and had longer springs in the front. The last one was made in 2005.

– 372: This Peterbilt model is considered the one that is the most aerodynamic, the cab nose piece can be flipped forward so that it is easy to do maintenance on it. It was made from 1988 to 1993. It’s said that it has a sort of Darth Vader like look because it looks somewhat like a helmet shape.

– 377: This model incorporated some headlights into the fenders and was also considered aerodynamic. It was made with a front axle that was set forward, as well as one that was set back. It was made from 1987 to 2000.

– 378: This Peterbilt truck had a steep fiberglass design on its hood and came as a front axle that was set back in its design. It was popular for over the road, as well as local trucking.

– 357: The 357 was similar in style to the 378, but was more of a heavy weight than it was. This is because it was designed for construction. It also came with flat fenders, a new style of hood and grill that it had put on in 2004.This vocational style hood was created for clients who wanted front engine power. It was very popular in the heavy haul trucking industry.

– 385: The 385 model was made between 1996 and 2007. It was meant to be a competitor to a truck put out by the Freightliner brand, the FLD.

– 379: Between 1987 and 2007 this was Peterbilt’s main flagship truck. A claim to fame is that Autobot leader Optimus Prime was shown as a 1997 Peterbilt Model-379 Extended Hood truck in the Transformer’s movie.

– 389: this model ushered in some of the changes in Peterbilt models to make them compliant to 2007 EPA standards.

Many more styles and models of Peterbilt trucks have come out since this time and the company is still going strong with many truckers desiring to drive and or own a model of the legendary Peterbilt Trucks.

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Source by Robertson Chase

Parallel Parking Your Semi Truck

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Have you parked your truck yet? If you have been dreading it like I know a lot of truck drivers do the first time, I have some tips for you which may help you prepare for that big parking moment.

Parallel parking is one of the hardest parking manoeuvres, perhaps the most difficult in fact, even for motorists driving standard cars, let alone those sporting tones of weight and an oversized haul.

Being able to do this manoeuver will most certainly increase your confidence as a Semi truck driver, with sufficient tuition, patience and enough practice there is no reason why one day you might be able to parallel park a semi-truck with confidence and efficiency. After getting yourself a CDL licence (USA) or HGV (UK) it’s a daunting experience being behind the wheels of a bulky powerful truck, trying to park in a cramped high street to make your deliveries you will need to at some point in your career perform a parallel park into a tight spot.

A few tips that will help you when you are parking your semi-truck:

Before manoeuvring, ensure that the vehicle is straight and both parts are aligned. When reversing the truck use the mirrors often, take it slowly use the mirrors as your guide. When a V shape is created between the truck and trailer you are at the right angle, halt the truck now.

Perform a full right turn, back it up till your trailer is aligned with the cab. At all times you need to check the mirrors, double check your alignment then halt, return the steering wheel and wheels to their normal position facing forwards.

Continue to reverse, perform a full lock to the left ensuring that both parts of the truck are in line with one another, try to avoid clipping the curb and. Should your vehicle not be straight or you’re not happy with its position, just pull the truck forwards and backwards steering slightly to position the vehicle, relax and pull the hand brake up.

You may have a different technique than this one, if it works for you then stick with it. Don’t go changing a good thing. Just remember to take it slowly, check your mirrors and look out for pedestrians and other motorists. Driving such a big vehicle means you have a duty of care not just as a truck driver but as a motorist.

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Source by Gregory Handerson

Lean Software Development

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Lean software development is an emerging strategy from the Agile community to apply the principles and practices of Lean manufacturing to the software development process. In very broad terms, lean software development considers anything which does not add to the final value of the product as waste.

Lean manufacturing is a result of the Toyota production system, a highly efficient process for building as many cars in as little time as possible whilst minimising waste and maximising efficiency.

The central concern of lean software development is the elimination of waste, where waste is work that adds no value to a product or service. Lean software could be summarised by seven general principles, all of which are closely related to their manufacturing counterparts:

1. Eliminate Waste

Anything that is not considered value to the customer can be classified as waste. Un-necessary resources, work, functionality and communication or bureaucracy all add up to waste.

To reduce waste, you have to first recognise it! Project managers should be able to able to spot waste such as abandoned code, waiting on other teams and un-needed functionality. All of these items are not considered lean software development.

When waste has been recognised it must then be removed, usually by working with management to produce guidelines and procedures to learn from mistakes and improve. The whole waste elimination process should be constantly, iteratively, repeated until every process is as efficient as possible.

2. Amplify learning

Learning in this context does not refer to a programmer gaining new skills, it means gaining knowledge, or learning, about the software being developed, usually from the end user and/or customer.

Lean software development often utilises rapid prototyping tools is a great way to get constant feedback from the end user. Regular testing in cycles is necessary and ensures quality is up to scratch and no creeping bugs are introduced.

Customer feedback should be enlisted as often as possible to ensure the project is on track, on spec and on time.

3. Decide as late as possible

A lot of research and fact searching takes places when it comes to lean software development. Rather than deciding first, decisions should be kept flexible as possible whilst going along with the process as requirements may change, rendering the outcome of a decision null. A methodology like Agile keeps the planning and development phase short to take in to account customer feedback at an early stage. This helps to move things in the right direction earlier than later.

4. Deliver as soon as possible

Delays can cause upsets, whereas early submissions without any errors can cause delight. When considering deliverables, working with team management is very important. The team leader should be a keeping the work going without complications and keeping constant updates and meetings with the customer.

It is important that every lean software developer, and every team member, deliver on time. A small delay in one step can cause a chain reaction that pushes the delivery date back considerably.

5. Empower the team

The classic saying “There is no I in team” is an important principle in lean development of software. Successful lean development of software teams are where everyone works as an equal, with the process of delegating done by a team leader. Developers should have as much say and input to the end result as possible – they are the ones directly involved in it’s creation, so they have unique insight.

6. Build Integrity in

You have to build integrity in to your product when it comes to your software. Conceptual integrity has to match perceived integrity to ensure customer satisfaction. The former is how the software functions in part and together whilst perceived integrity is what the customer understands it to be. If there is minimal gap between the two, the chance of customer satisfaction is very high, even when created with lean software development.

7. See as whole

Defects in software tend to accumulate during the development process – by decomposing the big tasks into smaller tasks, and by standardizing different stages of software development, the root causes of defects can be found and eliminated.

Lean development of software is all about being fast, eliminating waste and producing a product that satisfies the end user. Lean software development will produce software that is on time and on budget, every time.

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Source by Ali Mushtaq

History of Freightliner Trucks

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Freightliner Trucks is a well known American truck manufacturer of heavyweight trucks, as well as truck chassis and semi or tractor-trailer trucks and is now a division of Daimler Trucks North America, which is a subsidiary of German Daimler AG.

Freightliner the Early Years

Freightliner Trucks has been known as Freightliner Inc since 1942, but it actually has an earlier history in the 1930s as Consolidated Freightways. Consolidated Freightways began to develop its own line of trucks by reconstructing Fageols in an attempt to improve the abilities of heavy duty trucks to be able to climb the steep grades of the mountainous regions of the western part of the United States.

These trucks were called “Freightliners,” thus the beginning of the future of the Freightliner Trucks Company. The first trucks were made in Consolidated Freightways factory in Salt Lake City in 1942, the same year the company became Freightliner.

World War II stopped truck production temporarily at Freightliner, but by 1949 it was back in the truck making business in Portland, Ore. That first truck sold was purchased by a fork life maker called Hyster and that vehicle now has a place of honor in the Smithsonian in Washington D.C.

The company paired up with the White Motor company in 1951 in Cleveland, Ohio to help it sell trucks because to Freightliner lacked a way to distribute its vehicles. The partnership lasted for about 25 years and the trucks from that relationship were known as “White Freightliner” trucks.

Freightliner in the Hippie Years 1960s and 1970s

In the early 60s, Freightliner was looking for ways to reduce costs such as the importing duty penalty on the trucks made in Burnaby, B.C.. In order to do this, they opened assembly plants in Indianapolis, Indiana. and in Chino, California.

By 1974 Freightliner ended it’s relationship with the White Motor Company because of that company’s financial issues. Freightliner became a freestanding truck manufacturer and distributer. Around that time Freightliner came out with it’s very first traditional model of truck, which was an adaptation of what was a high cab-over engine model. At the time, these trucks made up 50 percent of the market due to length regulations that put limitations on the bumper to taillight measurements on tractor-trailer trucks.

The company continued to thrive and opened new manufacturing plants in Mount Holly, North Carolina and Gastonia, North Carolina in 1979. That year marked another milestone for the trucking industry when President Carter signed new laws that deregulated transport rules for both ground and air transportation. This deregulation changed how the economy of the trucking industry operated and got rid of the industry’s protection from competition, which let the Teamsters Union develop a stronghold position due to a Master Agreement made with every one of the nation’s important freight transport businesses.

Freightliner in the Preppie 1980s

The 1980s brought the Surface Transportation Assistance Act of 1982 which made more changes for the trucking industry by relaxing the weight and length rules and putting into place a brand new excises tax on heavyweight trucks and truck tires. It made it so that the overall length of tractor-trailers was no longer restricted, however, the trailer itself was now restricted and couldn’t be more than 53 feet long.

Freightliner had done well during the years when the transportation industry was de-regulated, but by 1981 it was having problems so the company was sold to Daimler-Benz. It also had to close plants in Chino, California. and Indianapolis, Indiana. However, by 1989, Freightliner was able to buy a plant that already existed in Cleveland, North Carolina that had previously made transit buses.

More Changes for Freightliner in the Booming 1990s

By1991, Freightliner was doing better and was able to bring out a new series of medium weight trucks it called “Business Class.” This was the first truck of the medium weight market in more than 10 years and it was extremely successful.

Freightliners also started making trucks in Santiago Tianguistenco, Mexico near Mexico City in a Daimler-Benz owned plant. The 1990s ended up being a good era for the truck industry and Freightliner flourished as well. At this time, Frieghtliner was under the leadership of James L. Hebe, who had come to the company in 1989.

Several notable products produced in the 1990s included what became the Freightliner Custom Chassis, which was produced for vans used in businesses such as UPS and Cintas, as well as school buses, diesel recreational vehicles, and shuttle buses in 1995, and in 1997 a heavyweight truck called the “AeroMax” was acquired from the Ford Motor Company and Freightliner renamed the truck series “Sterling.”

Freightliner The Modern Era

In 2000 Freightliner acquired what used to be the Detroit Diesel Corp., which has been a subsidiary of General Motors. Daimler later integrated Detroit Diesel into Freightliner, thus making the company even bigger. Unfortunately, it may have taken on more than it could handle at this time and by the following year, it had many more trucks than there was demand for. The company was having financial problems and so its former CFO Rainer Schmueckle was brought back to help get the company back in shape again.

During the next couple of years several plants were closed or consolidated in the hopes of getting Freightliner back in black again. In 2007 it had other woes when workers at the Cleveland, North Carolina plant called for a strike and as a result, 700 employees were fired. Most were re-hired about a week later. That same year the company had to lay off 800 workers in Portland, Oregon as it moved that plant to Mexico, and on Jan. 7, 2008 the company became known as Daimler Trucks North America.

Freightliner Today

These days, Freightliner Trucks is as active as ever making heavyweight trucks in the class five through eight series in North America, and it leads the diesel Class A recreational vehicle chassis and walk-in van markets. Freightliner also is responsible for a class 2 van called the Sprinter that is marketed through Freightliner for Mercedes-Benz in Europe.

As of Jan 2012, Freightliner had plans to hire 1,100 more workers for its Cleveland, NC plant to add to the already 1,500 workers there. This is a temporary measure due to increased demand for Cascadia trucks. Freightliner continues to be popular within the industry for making some of the most durable and dependable heavy weight trucks that are on the road today.

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Source by Robertson Chase

Five Safety Rules That Every Truck Driver Must Follow

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Safety regulations in the US haulage industry have been regarded as archaic until the recent CSA 2010 regulations came into force on 11th December 2010. Trucking by its very nature has its risks and involves a range of physical and mental challenges.

The Federal Motor Carrier Safety Administration (FMCSA) reported to Congress on November 2005 on the data covering a 33 month period on large truck crashes. The analysis suggested that 87% of these crashes were linked to driver errors. It was clear that there was a pressing need for a review of the safety regulations that already existed and that these would need to be brought up to date. With this in mind and in order to increase safety related to the trucking industry, five safety rules have been recommended that every truck driver must follow.

First Rule. You need your Registration and Licensing permit to get your cargo tank number from the FMCSA in order to be properly registered. This is the Federal Government agency which has the task of keeping data on the safety of truck driving operations in the US. If you haul hazardous material there are additional registration requirement needed to comply with safety regulations.

Second Rule. The Federal Motor Carrier Safety Administration (FMCSA) regulates the Hours of Service (HOS) of commercial drivers in the United States. Commercial motor Vehicle (CMV) drivers must not work more than 11 cumulative hours driving in a 14-hour window. This must be followed by a rest period of at least 10 hours. In addition to this truckers employed by carriers on a day-to-day basis must not work more than 70 hours with a working period of 8 consecutive days. Drivers are also required to keep a daily logbook to keep a record of work and rest times. These records need to be presented to officials when requested.

Third Rule. The safety regulations put in place by the Federal Government are mandatory and need to be observed by truckers at all times. It is essential that you should know the trucking regulations and road safety rules to avoid breaking truck driving laws and endangering other road users.

Fourth Rule. Truckers will be aware that they will be tested for alcohol and drug abuse. (DUI). Truckers know the consequences of breaking this basic trucking regulation. They could lose their job and livelihood.

Fifth Rule. Accidents will happen on the roads. When this involves hazardous material spills truck drivers need to be fully equipped in every way to deal with the spillage. In a chaotic accident the truck driver should already know who to contact and what to do. The Pipeline and Hazardous Materials Safety Administration (PHMSA) provides useful guidance regarding this aspect of truck driving.

These rules are basic common sense for the safety of everyone using the freeways. Keep them safe, keep yourself safe.

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Source by Ghassan Daouk

How Truckers Shift an 18 Speed – 3 Steps To Shifting – What Truck Driving Schools Don’t Teach You

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As a trucker, shifting gears becomes second nature next to breathing. In this article these 3 tips will teach you how to shift an 18 speed transmission. Whether an 18 speed to an 8 speed, these simple techniques will teach you how to shift.

1st Tip 3 Points on a Transmission

First let’s talk about the mechanics of the transmission shifting levers. So you are sitting up in a big truck looking at the shifting lever on the stick. You notice that there are 2 red switches on it. You have one on the left and one in the middle.

So what do these switches do? The selector switch in the front is for your high and low side on the gear box. The selector switch on the left is also a high and low side to shift a gear. Next I’m going to tell you about the hard rail.

The hard rail is an invisible line in the transmission which will let you know where you are in the gear box. When you move the shifting stick from side to side you will feel a little resistance on the left. When you break into that and push up on the gear shifter that is reverse. When You pull down that 1st gear.

2nd Tip Floating Gears

This term is used a lot by trucker. This means you are shifting without a clutch. I have been driving truck for over 10 years now and never used to clutch to shift. The only time you need to use the clutch is put it into first gear or reverse.

3rd Tip Double Clutching

This method is for some reason taught at a lot of truck driving schools. When I first tried it my leg got sore. I quickly learned to float the gears. The way to double clutch is you push in the clutch and put it in 1st gear. You clutch to take it out. Then you clutch to put it in 2nd gear… and so on. Floating is so much easier.

Test Drive

Now you are in the driver’s seat and we are going for a drive. Go ahead and push in the clutch and grab the shifter. With the middle selector down which is in low pull the gear lever into 1st gear. Ease up on the clutch and we are pulling away. Good job.

Now slide the gear shifter into second gear without clutching. You should ease it in gear with just your figure. Now shift to 3rd the same. Note… when floating gears you are matching the engine RPM with the transmission and road speed. Like if you were rolling down the road you wouldn’t try to get it into 1st gear. Some times you might scratch a gear so also just rev up the engine and it should drop into gear. See you are doing fine, good job. You are on your way to be a truck driver.

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Source by David VonAnderseck

Selecting the Right Boom Truck For Drywall Deliveries

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Of course, choosing the right crane is just the first part of selecting a boom truck. The truck chassis also requires some thought – the wrong specs on the truck can impact the overall performance of the crane.

Here are a few tips for choosing the right combination of truck and crane for drywall, which has to be delivered to high heights and, sometimes, across wide distances.

Crane Specs

At one time articulated cranes came second to stiff boom cranes. That is no longer the case, as companies in the building supplies industry have come to understand the many benefits of articulated cranes. Because they are so widely used, this article discusses articulated cranes.

  • If you are delivering materials at a site and require a long reach, ensure that the crane has a boom with very little flex. For example, you may need to deliver drywall or other materials to high floors or maneuver around objects. A typical articulated crane used for large drywall loads has a 70 ft. vertical height and 50 ft. horizontal reach. The crane’s rated capacity at its full vertical reach should be 7,500 lbs. or more. For its full horizontal reach it should be rated at about 3,000 lbs. These ratings ensure maximum accuracy in deliveries.
  • Radio remote controls are vital to precise and fast deliveries. Check the options on remotes and evaluate them for smoothness of operation and varying speeds. High flow, load sensing hydraulics also increase the speed of delivery.
  • Medium drywall cranes – those with a maximum 50 ft. boom length – do not always come equipped with radio remote controls, but that feature is becoming increasingly common since radio controls offer greater precision and safety. You may want to ask your vendor about the various options for controls for smaller cranes.

Truck Specs

If you are carrying heavy loads, like drywall, you need to consider the strength of the truck chassis and additional safety features, like hydraulic outriggers.

The main considerations in the chassis are the frame and the axle capacities:

  • The term “section modulus frame” refers to the relative strength of the frame as it relates to its shape. Frames with a large section modulus will have the greatest strength and the best ability to resist sagging under heavy loads. Ensure a large section modulus for your drywall truck.
  • A truck deck of 24 ½ ft. is usually recommended, since it can carry 12 ft. lengths of wallboard.
  • Although there may be different regulations in your geographical area, the standard axle rating for large drywall trucks is 20,000 lb. front axle and 46,000 lb. rear tandem.
  • Hydraulic outriggers should be sufficient to help increase the rigidity of the truck’s platform.

If you have any doubts about the compatibility of your truck and crane, ask your vendor for a computerized equipment matching service to ensure that you select the right combination to maximize performance, safety and payload.

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Source by Steven Brugess

Tuned Mass Damper In Contrast To Viscous Damper

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There are numerous damper solutions for dampening undesirable vibration. A magnetorheological attenuator and a tuned mass damper (TMD), for example. Here we focus on the benefits and negative aspects of those two actuators.

TMD Pros and Cons

The concept of a tuned mass damper is to somehow intelligently act in response to shake. A distinction I follow is that a tuned mass damper creates a counteracting force by moving about a mass at reverse cycle with the source vibration.

A benefit of a TMD is evidently its capability to make a significant change by imposing a force to the shaking process because of a moving mass. This can also be one of its major problems. If you ever apply the force systematically at a wrong instant, the vibration system may become instable in case the motion of the TMD happens in the resonance wavelength. And functioning at the resonance frequency is somewhat common, as the resonance pitch is many times the one being killed. Ok, it is true that with a semi-active actuator there’s also the danger of screwing up with something at the resonance frequency by handling the actuator poorly, but at least no additional force with a moving mass is used and due to this fact the future damage is not as damaging.

An extra negative aspect is the increased selection of moving items. A tuned mass damper is additionally the one which necessitates the most hand-operated assembly labor.

Semi-Active Damper Benefits and Drawbacks

The operating principle of a semi-active damper is based on the material aspects. When it comes to magnetorheological actuator, the dampening substance varies its viscosity. The content is a ferrofluid: oil containing metallic particles. The theory is that when you put on a magnetic field to the matter, the metallic particles are arranged according to the field lines and get the fluid stiff. This produces in practice a damper that may be turned on and off in just milliseconds.

A disadvantage of the damper is obviously its somewhat reduced quantity of usage. This is mostly because of the fact that it’s rather fresh alternative on the market and not very widely tested yet. On the other hand, this is constantly changing since the systematic research material builds up.

In my view, the semi-active actuator combines the greatest components of the previous actuator categories:

  • Small dimension
  • A small amount of moving items
  • Responds real-time to a selection of vibration frequencies

Moreover, as a result of its little size the magnetorheological actuator may be attached beside a present passive attenuator that is already attenuating certain frequencies. The magnetorheological actuator can then focus on the vibration that can vary with time.

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Source by Miikka JJ Niiranen

Recession in Nigeria: Strategy for Company Survival

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The current state of the country has posed some challenges on companies. At this recession time, every company has to think out of the box and find a way to survive. Since the early part of 2016, companies in Nigeria have been battling with a number of economic issues such as inadequate foreign exchange for importation. This has created serious bottleneck in production and meeting the demand of the customers, though the demand for local raw materials has increase (only for imported raw materials that has local substitute).

Before this time, Nigerian companies have been battling with couple of problems such as poor infrastructure, poor power supply, global competition, product faking, regulations and taxes, etc. Working capital has been seriously depleted and the banks are not giving out loans. The inflation rate has been ridiculous and the devaluation of Nigerian Naira has been alarming. The downturn in the economy has greatly affected all the sectors of the economy and many companies have to shut down operations while others are operating below minimum.

It is important therefore that any company that wants to survive this recession has to come up with new strategies to survive. However, the first area to focus is on company’s cost. Recession calls for cost-cutting, especially those cost we can do away with. These include cost as a result of wastage (double handling). It is not time for re-working products thereby increasing cost of production. Cost of power/energy (for generators fuel) has to be reviewed. Do you need to run all the machines? Do you need to run present machine capacity, though you are not doing the usual volume with it? Do I need I big generator at this point or use smaller generators for small machines, thus less spending on diesel or petrol? These are questions for decision making in respect to efficient power utilization.

The company has to look into costs resulting from high-key lifestyle or luxury. It is an important area to cut down on cost. The number of staff can be reduced since most companies are not doing the usual volume that requires the present number of staff. It is better to have few staff that can be well paid doing the whole job than many staff that the company cannot afford their salary at this point.

The procurement manager needs to do more of research on local substitute/alternatives for some materials since Forex is not even available. He may need to consider other suppliers and see what they can offer. The production manager can equally look out for possible production synergy among production plants.

Another important area to also consider is that of new business idea. Given your current machines and manpower, the company can think of a new product with 60-80% local raw material usage. This will help the company running and paying its fixed cost while sorting out Forex and importation for other products. The new product can be well managed to give room for export, if to the neighbouring countries. This is not a bad idea. Just survive!

Nigeria is going through a phase and will soon pass. However, every company has to figure out how to remain in business before the end of the recession.

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Source by Oluwanisola Seun