Terex Commander Digger Truck

 

Digger derricks are useful and powerful tools which are widely used in the utility industry, in construction, and in mining. The electrical and telecommunications utility industries utilize these immense trucks to dig holes for electric and telephone poles and to lift and set those poles. To do these jobs safely and well, digger derricks require regular maintenance and close attention to safety concerns while on the job.

Maintenance on a Regular Basis

Maintenance on a regular basis is vital to ensuring the safe and responsible operation of a digger derrick. The digger derrick is basically a truck frame on which is attached a boom and a massive auger for digging into the ground. The truck requires regular servicing such as tune-ups of its diesel engine and periodic oil and filter changes. The boom and the auger are operated by hydraulic power, which likewise requires maintenance, including the replacement of fluids and components as necessary. Always follow manufacturer recommendations when it comes to a maintenance schedule.

Inspection for Day-to-Day Use

Before the digger derrick is put into use for a day on the job, it’s important to inspect the vehicle thoroughly. Visually examine its components to make sure that none of them have been damaged in any way. Inspect the underside of the vehicle to make sure there aren’t any leaks, whether of oil or hydraulic fluid. Check the tires to make sure they don’t have cuts or other damage. Make sure the lights on the vehicle are functioning. Pay special attention to the auger, since it gets a great deal of use on a given job and could have problems related to wear and tear. None of its parts should be loose or cracked.

On the Job Safety

At the job site, the digger derrick should be secured by extending its outriggers as appropriate, and the outriggers should, in turn, sit securely on outrigger pads. The outriggers will provide extra stability for the truck while the auger is being used. Workers should wear safety gear, including hard hats, gloves, and goggles. They should maintain a minimum safe distance of 30 feet from the auger while it’s in operation.

Due to their power and wide range of capabilities, digger derricks are a tremendous boon to industry, but they should never be operated by untrained personnel. These vehicles should only be operated by people who are knowledgeable and skilled and who meet training requirements as set forth by OSHA.

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Terex Bucket Truck For Sale

 

Most cases of hydraulic system failure in bucket trucks can be chalked up to three specific and common causes that result in excess heat, which contributes to damage and deterioration of components. These situations can all be minimized with regular maintenance and proper troubleshooting by qualified technicians. Always follow a maintenance schedule for your bucket truck and equipment that’s recommended by the manufacturer.

Contamination

The most common cause of hydraulic system failure is contamination, or when contaminants get into the system. Larger contaminants, or particles such as sand or shavings, can wear sizable grooves into the surfaces of components in a process called phonographing. The grooves caused by phonographing cause excessive heat and compromise the ability of the gear pump to do its work. Smaller-sized contaminants will cause significant wear and tear to the gear pump, making it much less efficient. They can also cause a condition known as jetting, where a profusion of small particles can erode a path of wear across the plate surface of the pump and cause pressure imbalance.

Over-pressurization

Over-pressurization occurs when a pump is operated beyond the capacity for which it is recommended. A pump running at a pressure that is too high will sustain damage to its various components, and overly high pressure will also result in failure of the hydraulic hoses and the cylinder packing. Problems caused by over-pressurization can happen whether the system is operated at a pressure that’s consistently too high or if the system is operated at high pressures that spike. A relief valve will help with spikes to an extent, but there will be damage if the spikes come in too great a frequency for the valve to cope with.

Cavitation

Cavitation occurs when an excessively high vacuum forms at the pump inlet, causing bubbles of gas to form in the hydraulic fluid. The bubbles form in the vacuum and then implode with a great deal of heat and energy at the pump’s pressure point. These implosions create excessive heat in the system and also damage components. Experienced troubleshooters can hear when cavitation has become an issue because of distinctive sounds that the bubbles’ implosion causes the pump to make.

The common denominator to all these causes of hydraulic system failure is the fact that they all result in excessive heat and damage to the components, which can compromise the functioning as well as the efficiency of a bucket truck’s important systems. It is vital for the people who service utility vehicles to keep the hydraulic systems free of contaminants as well as to always operate the equipment within recommended parameters. Learn more about bucket trucks equipment, maintenance, and safety, click here.

Five Uses for Bucket Trucks

Posted: May 31, 2014 in Trucking

Bucket trucks enjoy wide use all over the country, and they’re often spotted along roads and highways helping workers do tasks for which they need to be elevated above the ground. There are quite a few reasons bucket trucks are used, and you’ll find them engaged in a great many interesting activities.

small used bucket truckElectrical Utility and Telecommunications Industries
Perhaps the most common use for bucket trucks is for maintenance work on electrical and telecommunications lines. These trucks are a tremendous help for utility workers in doing their jobs much more safely than in years past, when they were required to climb poles using boot spikes. The bucket trucks that are used by electrical linemen have insulated equipment to protect them against electrical hazards.

Trimming Trees
Another very important use for bucket trucks is to trim trees. Following thunderstorms and bad weather, tree branches can break off and cause problems with power lines. Workers who work to trim tree branches near electrical wires and cables do their jobs from insulated buckets to lessen the hazards. In forestry, too, workers employ bucket trucks to trim the tops of tall trees for maintenance purposes.

Washing Windows
Because of their boom arms that can extend as high as 60 feet in the air, bucket trucks make great tools for washing windows, especially on buildings that are quite tall. When they do their jobs from the trucks, window washers can take their tools with them, and they don’t have to deal with the dangers posed by trying to do their jobs from ladders.

Harvesting Fruit
The modern bucket truck developed out of a truck known as the cherry picker, which was used in harvesting fruit. Bucket trucks continue to be widely used by people who work to harvest fruit since it is much safer and more convenient to simply move the boom arm to pick the fruit rather than having to go up and down ladders.

Rescue Operations
Some fire trucks have boom arms with buckets attached, making them bucket trucks. These are used to rescue people from the higher stories of a burning building. Fire trucks that are also bucket trucks make these kinds of rescue operations much simpler and safer.
Any time there is a job to be done that needs to be performed at a great height, a bucket truck makes an excellent tool. These trucks should only be operated by people who are knowledgeable, certified, and trained in their use.

Utility fleets have a great deal to consider when it comes to keeping their vehicles well-maintained, and one of their major concerns is rust prevention. Corrosion caused by rust translates into a great deal of expense and lost productivity when bucket trucks become damaged and their parts fail. Protection of these vehicles against corrosion is vital to keeping them roadworthy and safe in the performance of their tasks and helping you manage your fleet.

Preventative Habits

Bucket trucks, when they’re new, already have a significant degree of rust protection. Paint jobs work to prevent rust by acting as a protective seal to keep out moisture and to deflect dirt. But with regular use, dirt and grime can build up and cause tiny scratches and nicks in the paint, allowing rust to get a foothold. Salt is especially corrosive and can actually speed up the rust process. Preventative habits and protective measures can help, such as having the vehicles in your fleet pressure washed, as needed, with a hot water, high-pressure washer of professional quality. Cleaning agents can be added to the water to aid in protecting surfaces and preventing rust and corrosion.

Preventative Products

Protective oils have long been used in the automotive industry and are known to be very effective. You can use oil on a yearly basis, or whatever schedule is set out as optimal by the equipment manufacturer. Oil can be an excellent means of preventing rust, especially in areas of a bucket truck that are hard to reach. You might want to use an oil that’s less viscous – that is, thinner – on hard-to-reach areas such as engine compartments, since the lower viscosity means it will flow better. Oils that are more viscous can be used on easier-to-reach areas of your equipment to which you want to give lasting protection, such as the wheel wells and the undersides of your trucks.

Other rust-preventative products include tar and wax, but they have significant disadvantages. Sure, they can act as protective seals on metal surfaces, but they can also trap moisture and even salt inside and actually work to speed up the rust process. If you use tar or wax, you need to be sure your metal surfaces are absolutely dry.

When you take steps to prevent rust, you will enjoy longer and better-quality life cycles for your bucket trucks and other utility vehicles. These benefits translate into greater cost effectiveness and efficiency for your fleet as a whole. Whether it be new or used equipment or vehicles.

Whether the purpose is for putting up adornments, cutting trees or replacing old lights with new ones atop tall electric posts, the bottom line is you need to pick something reliable, be it brand new or pre-owned. If your community has a budget that is more than enough, investing in a new truck would be a wise move to make, provided that you pick something that is manufactured by a trusted brand. On the other hand, if you are running on a tight budget, then it would be best if you go for a second-hand truck.

Aside from choosing a pre-owed truck that is made by a reputable brand, it is equally important to examine the condition of the truck and see if it has underlying problems. Moreover, you may also want to purchase aerial bucket trucks from reliable providers like Utility Fleet Sales, which carry pre-owned utility trucks that are factory-certified.
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Another important aspect mentioned in the article is the hiring and training of the right people who will operate the trucks. To compliment qualified operators, it is also advisable to purchase used trucks that are ETI factory-certified. Trucks that have this certification meet their original operating and safety specifications and requirements, and their chassis exceed the standards of the DOT.

Utility truck dealers like Utility Fleet Sales offer an extensive selection of quality, ETI-certified bucket trucks used in various industries. Getting a bang for the buck on bucket trucks is achievable as long as you conduct your due diligence and talk to the trusted providers.
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Given this situation, it will usually take a while before power is restored to every area of the state. This is especially true if the entire city is affected. For one, institutions that need power immediately– hospitals, police and fire stations– are usually given priority over residential districts.

Electric companies who want to increase the effectiveness of their services should consider getting a bucket truck for sale. Acquiring a good truck from dealers like Utility Fleet Sales will definitely help an underequipped electric company operate to full capacity. Having several units of bucket trucks means that the company can more swiftly provide solutions to any problems that may arise.
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