800-227-7515

Little Beaver Logo
The Invention That Tackled Torque

The Invention That Tackled Torque

May 15, 2018

One-of-a-Kind Feature Improves Operator Safety

In the mid-1970s, Van Cox set out to solve one of earth drilling’s most punishing problems — auger torque. Cox, an engineer for Little Beaver, soon completed a design and secured a patent for what is now known as the torque tube. The one-of-a-kind invention protects operators from the harmful effects of a drill’s torque by transferring kickback from the auger to the power source.

More than 40 years later, deck builders, fence contractors, landscapers and rental customers continue to enjoy torque-free drilling as well as the labor-saving benefits made possible by safe, one-person drilling.

Mechanical earth drill torque tube

By transferring dangerous kickback to the engine carriage as opposed to the handles, one person can safely operate a Little Beaver drill.

The invention remains a defining feature on Little Beaver’s of mechanical and hydraulic earth drills, and it continues to make life easier for business owners and drill operators thanks to the many benefits of torque-free drilling.

Less Manpower: By transferring dangerous kickback to the engine carriage as opposed to the handles, one person can safely operate a Little Beaver drill. Most drills without torque protection require two operators for safe use. One-person drilling frees up the second individual to work on other tasks so jobs are completed in less time.

Fewer Strains: Kickback on traditional drills can jar an operator’s body, causing strains and injuries, which lead to time off and worker’s compensation costs. Even minor injuries, ones that don’t result in time away from work, can slow individuals down, decreasing overall production.

Easier Use: Since the torque tube absorbs kickback, operators don’t need to work as hard to control the machine. This significantly reduces fatigue while allowing operators of any age or experience level to easily handle the drill.

If you’re still not convinced of the benefits of Van Cox’s invention, see Little Beaver’s solutions for yourself.

null
Listen to Your Earth Drill

Listen to Your Earth Drill

Nov 27, 2017

Tips For Preventing and Diagnosing Mechanical Earth Drills Issues

Mechanical drills’ high operating speeds

Mechanical drills’ high operating speeds and compact sizes make them a popular choice for contractors and rental centers — and ideal for drilling holes quickly. Although these transmission-powered machines have significantly more moving parts than their more costly hydraulic counterparts, simple knowledge of how to prevent and diagnose common problems will keep your drill running efficiently. Below are answers to questions we get often and some tips to help you achieve better ROI.

What steps can I take to minimize the risk of damaging the drill?

Start by choosing a unit with the correct gear ratio and auger for your soil. For soil with minimal rocks and few roots, a 10:1 gear ratio with a standard auger will provide fast and efficient results. For drilling in clay or other difficult conditions, a 10:1 gear ratio will still work, but switch from a standard to carbide blade to effectively cut through the soil. If you’re working in an area with rocks exceeding 3 inches in diameter, choose a drill with a 20:1 gear ratio reduction and a heavy-duty auger. The gear reduction slows the auger from 360 to 180 rpm and will pop the rocks out of the soil and continue spinning.

Should I be concerned that the gearbox is hot or making an unusual sound?

The gearbox will always be hot to the touch when the drill is operating. However, if the transmission is extremely hot, smells like burned oil or starts making unusual sounds, check the oil level. Oil leaks can occur around the seal, lower output shaft or the top of the transmission, and will lead to drill damage if ignored. Low oil also increases the risk of premature bearing wear, which can result in excessive heat and unusual sounds. To prevent early wear, check the transmission oil level and condition monthly or every 40 hours of operation.

Mechanical earth drill flex shaft maintenance

It’s important to clean, examine and grease the flex shaft every 50 hours of operation to prevent damage.

The engine is running, so why won’t the auger turn?

A problem with the drivetrain, most likely along the flexible drive shaft, is to blame. To pinpoint the issue, start by inspecting the end fittings for cracks or breaks. If there are broken wires or sharp kinks, it’s time to replace the shaft housing. If things appear fine from the outside, remove the flex shaft for further inspection. To prevent flex shaft damage, clean, examine and grease the flex shaft every 50 hours of operation. Check your owner’s manual to determine the correct procedure for greasing the flex shaft.

Why does the clutch slip or cause the drill to jerk during operation?

Over time, a drill’s clutch padding wears, resulting in reduced performance when engaging the auger or accelerating the engine from idle to full speed. The clutch will continue to run, even if the padding is completely gone, leading to easily detectable problems. It’s best to inspect the clutch every 30 days or any time you lubricate the flexible drive shaft. Regular checks will help you track the wear so you can replace the clutch pads before the drill loses performance.

Centrifugal clutch spring replacement

Spring damage can cause the clutch to overheat and may result in the auger spinning when the engine is idling. If this occurs, replace the springs immediately.

Why is the drill less efficient than it used to be despite everything working properly?

Too often, operators allow the points and blades to wear beyond the point of being effective. The drill can run perfectly and spin all day, but if the blades and points are worn, the unit will become less and less effective.

Where can I find additional resources?

Information is always available at your fingertips, including comprehensive maintenance brochures and video tutorials. These helpful tools are excellent resources and often include visuals as well as step-by-step instructions.

Knowing your drill, keeping up with maintenance and accessing additional resources when questions arise will go a long way toward successful drilling.

null
Hit a Home Run in Fence Construction

Hit a Home Run in Fence Construction

Jan 31, 2016

4 Tips for Building the Perfect Fence

Mechanical earth auger for fencepost installationYou’ve become an expert in landscaping throughout the region. From planting trees and flowers to installing decks and curb edging, you’ve completed many projects for satisfied customers. Now it’s time to step up your game and add fence installation to your services.

Let these fence-building tips lead you to success.

1. Get Answers.
Start like you would with any project, by working with the homeowner or business owner to establish the size, scope and specifics of the project. To do this, always have a set of questions ready that will get to the heart of the project. What kind of fence does the customer want? What will the layout be? Where do they want gates? How high should you build it?

Check with city building codes and, if applicable, neighborhood association rules, so that the fence specs meet all of the codes. If the city assessor has not surveyed the property recently, you’ll want to coordinate that to ensure the fence is built in the proper location and, depending on the area, you may need a permit. Call 811 a few days prior to digging to have utility companies mark underground utility lines, gas pipes and sprinkler systems.

2. Get Your Tools.
Selecting the right hole digging equipment will help you finish on time and on budget. If it’s a small project, you might use a hand-held posthole digger. If you’re doing more than a dozen holes, though, it will be slow work to muscle each hole clean. To tackle bigger or multiple projects, you’ll want the speed and ease-of-use that comes with an earth drill. A Little Beaver mechanical one-man or hydraulic drill can bore each hole in less than a minute with little effort. It’s equally important is to make sure you select the correct auger, points and blades for the soil type you’re working in. This will help you dig holes faster with less pain.

3. Get it Straight.
You can’t get a straight fence without evenly spaced holes and firmly set posts. Set the spacing by marking and digging all corner and gate post holes first. Run a string from corner to corner and then measure the post spacing along the line.

For chain link fences, space postholes no more than 10 feet apart. For wooden fences, posts usually stand 6 to 8 feet apart. If installing posts in soft soils or windy areas, use a hand posthole digger to flare out the hole, creating a bell shape for more stability. The hole diameter needed is based on the size of the post used. For instance, a 4-by-4 post requires an 8-inch diameter hole. This can be easily achieved with Little Beaver’s snap-on augers that range in diameter from 1.5 to 16 inches. Holes are typically 24 inches deep, but you’ll need to ensure the depth is 3 inches below the frost line to prevent posts from cracking in the frozen ground. In some parts of the northern U.S. and into Canada, that means going as deep as 4 feet. If you’re in windy areas or sandy soil, you may want to dig your posts even deeper.

4. Get the Concrete.
Position the posts so that they are the correct height and plumb; even the slightest lean can create a slanted and potentially unstable fence. Next, shovel concrete into each hole. Avoid touching the post, which could cause it to move. Choosing concrete rather than a dirt and gravel mix will give the fence better stability. Allow 24 hours for the concrete to set, and then attach the chain link fabric or wood framing and face boards. With both types of fences, complete the gates last.

Once you’re done, it’s an ideal time to touch base with your customer on fence maintenance and landscaping recommendations. A job well done here can translate to more work, whether from this customer or referrals, as you continue to expand your landscaping services.

Feel free to contact us for further fence-building tips; or general questions on our full line of augers, one-man earth drills and two-man earth drills. We’re always happy to provide the tools and assistance you need.

null
Drilling Deeper

Drilling Deeper

Nov 11, 2015

Selecting the Best Earth Drill & Accessories for Your Project

Mechanical vs Hydraulic Earth Drill BenefitsAn earth drill is an excellent tool for a variety of projects, from installing fence to planting trees and creating irrigation systems. It can also be used for anchoring mobile homes, large tents and utility poles. Notice the diversity of work that can be accomplished using this singular tool. While these projects may appear similar because they all demand a hole, drill beneath the surface and you’ll find that soil composition makes a big difference in what power option and style of auger is best for the task at hand.

Taking a few minutes to understand the different drill types and components will win you enhanced productivity on the jobsite. You can choose between two types of engine-driven, one-man earth drills: hydraulic or mechanical. They might look alike, but each post hole auger was designed for a distinct purpose.

Hydraulic Power

Hydraulic earth drills are your best option for the toughest layers of sediment, including frozen ground and rocky soil. They have approximately double the torque of mechanical models. Little Beaver’s hydraulic machines have rugged bodies and powerful torque to punch through stony sediment. Precise, low-speed operation coupled with high torque allow the operator to drill clean and accurate holes, even in the most difficult applications.

Hydraulic drills are ideal for single-hole projects such as installing signs and planting trees because they’re compatible with large-diameter augers, some as wide as 16 inches. The torque makes them perfect for quickly anchoring mobile homes. Additionally, the drills typically have a reverse setting so you can safely remove the earth auger if it becomes lodged under a rock or tree root.

Mechanical Speed

Mechanical earth drills are more compact and lightweight, but still pack a powerful punch. When your project needs speed and precision, this drill is up to the task. This transmission-powered unit performs high-speed auger rotations at 360 rpm so you can quickly drill several, narrow holes for a wide range of applications, such as fence post fitting and deck footings, as well as planting flowers. Paired with an effective horizontal boring kit, it can also drill under driveways or sidewalks for a variety of landscaping needs.

Superior Safety

Most drills with 360 rpm speed require two operators to stabilize the unit. Both our mechanical and hydraulic drills have a torque tube that transfers torque from the auger to the power source, drastically reducing the risk of encountering dangerous kickback. This one-of-a-kind invention makes one-man drilling not just possible, but also safe and efficient. The torque tube reduces physical strength on the operator and enables safe operation regardless of drilling experience.

Auger Selection

Once you’ve chosen your drill type, it’s time to pick the auger that matches the required hole diameter. Augers can be as narrow as 1-1/2 inches for smaller jobs like soil sampling, and wide as 16 inches for large applications, such as foundation repair. Little Beaver’s snap-on augers can make changing out the auger or attaching extensions a quick and easy process. They feature a spring-loaded snap button, which secures the auger to the drill head. This reduces set-up and take-down times. This connection method simplifies the process of adding extensions, which enables the operator to dig a few feet deeper without needing to purchase a longer auger.

Little Beaver PointsContractors and landscapers should also look for augers that have swappable points and blades. Standard blades are ideal for loamy soils or areas with few rocks because of the cold-rolled steel and hard surfacing on the edges. Use Little Beaver’s carbide blades for drilling in denser soils. They equip the earth auger to chop hard clay and frozen ground into pieces. Swap out the blades using an adjustable wrench. These modifications enable an auger to drill more than 100 holes in prime soil conditions before needing service.

An Essential Tool

Whether you are a seasoned construction pro or a do-it-yourself weekend warrior, the one-man auger is a timesaving, indispensable companion in your arsenal of tools. Outfitted with Little Beaver’s patented and reliable drill designs, you can tackle drilling projects in a fraction of the time you would with a shovel.

null