Tree Health: Winter Weather Woes

Keeping customers happy while dealing with snow and ice damage

By John C. Fech

(Rabbit browsing is common in winters with extended snow cover.
Photos by John C. Fech, UNL)

There are many ways to perceive or view winter damage to trees. One is to deny it, to say to yourself or others “Oh, it’s not really that bad,” and find ways to deflect attention to the injury. Another is to accept it, to realize that it is what it is, or aquí es en Español. A third is to fight it, to dig right in and think of ways to recover from it, or prevent it in the future.

Which of these works best? While this question can be difficult to answer, it’s helpful to understand the thought processes behind the feelings associated with the damage. In most scenarios, a combination of the latter two is usually most reasonable. After all, tree care providers are not in control of all the factors that affect trees, and as such it’s illogical to assume that as a result of your efforts nothing bad will ever happen again.

Consequences of damage

There are basic rules, or tenets, that are part of our culture and hard to argue with. The first two: There are only two things certain in life, death and taxes; and supply and demand drives our economy. The third: cause and effect. In the context of winter damage, the cause is usually unknown, at least in the short run, and the effects can be varied.

The most obvious effect is the injury to a woody plant. Many trees are quite valuable to clients in terms of aesthetics, temperature modification and property value; their demise is usually problematic.

If the damage is severe, one consequence may be the loss of a customer, even though the tree care company had nothing to do with the injury. Clients can be fickle and use the damage as a reason to switch to another company or discontinue tree care altogether.

Winter construction projects can cause damage that is difficult for trees to recover from. The loss of a good reputation is also a possibility. Losing a positive reputation amongst the customer base, other tree care providers, city officials and suppliers can have long-term negative effects on a company, especially if it’s a small company and word-of-mouth is the primary advertising method.

Regardless of which of the three may be encountered, none are desirable. On the other hand, dealing with damage in a sound and responsive manner may increase your standing with the customer and positively reinforce the business relationship. Therefore, proceeding in a logical and straightforward manner is a worthy endeavor.

(Corrugated PVC collars are effective in preventing damage from mice and other critter)

Seven steps

As with any of the problems that we encounter in life, a certain level of acceptance is healthy. It matters not whether you’re considering which eldercare facility is best for your parents or how to invest for retirement, a step-by-step process is a good course of action. The following seven steps, courtesy of Steven Rodie, ASLA, University of Nebraska-Lincoln, are an effective guiding procedure in terms of diagnosing winter damage and devising a healthy response for the customer.

1 Accept the situation

2 Analyze facts and feelings

3 Define goals and objectives

4 Generate ideas to achieve goals and objectives

5 Select best ideas or combination of ideas

6 Implement

7 Evaluate; start over; never finished

Accept the situation. This requires work by both the tree care provider and the customer. Sure, it’s different work for each party in that the worker/owner/arborist usually sees the tree as a valuable part of nature and possible work for hire, while the owner will be thinking more locally and property specific. In the end, it is what it is; it happened.

Analyze facts and feelings. The fact may be that a large limb has fallen to the ground or is hanging on the house, or the entire tree has turned brown and needs to be dealt with. The owner often sees these facts, but combines the actual occurrence with the hurt or loss of a valuable asset and needs to process the feeling in their own mind. It’s best to keep this in mind when talking with the customer and give them some time to work through their feelings, especially if it is a memorial or historical tree.

Define goals and objectives. Depending on the severity of the injury, it is helpful to revisit the importance and purpose of the damaged tree. If the tree in question was an undesirable volunteer that sprouted 2 feet from the foundation, then this may be a blessing rather than a problem. Damage often provides an opportunity to rethink why each tree is in place on a given property in terms of the benefits it provides and the effort that is required for its care.

(Warming and cooling of the bark in winter can cause damage to the cambium)

Generate ideas to achieve goals and objectives. Recovering from winter injury is usually easier if several ideas to move forward in a responsible manner are generated. These should be directly related to the goals and objectives for each tree as well as the property as a whole. As a tree care provider, it’s wise to generate some ideas based on your experience with other clients and share them with the customer, keeping in mind that they will likely have some ideas of their own.

Select best ideas or combination of ideas.Selection of “best” ideas is a highly subjective process. After the ideas are presented to the customer, unless their choice is a poor arboricultural practice such as topping a winter damaged tree or removing most of the lower limbs (lions-tailing), deferring to their choice is probably the best course of action. Once you have presented several reasonable and sound options, remember that it’s their tree and they have the right to choose their preferred course of action.

Once the choice has been made it’s time to implement the action. Some actions should be implemented immediately; for example removing a fallen limb. For some damage the required actions may be part of a longer-term plan. If this is the case, devise a simple project plan or punch list detailing the work and the time frame to get it done, and present it to the customer in a walk and talk around the property.

Evaluate; start over; never finished. After the implementation of the plan, it’s wise to evaluate how well the action accomplished the goals and objectives for the trees on the property. Did the removal leave an unacceptably large gap in the tree line? Does dead wood remain in the tree that needs to be removed? Would application of mulch around the remaining specimens improve their function and appearance? Have defects such as cracks, codominant leaders or decay developed since the implementation? All of these are important questions to ask and discuss with the customer. Following the discussion, it may be necessary to start over, or implement additional actions. In terms of good tree care, the use of best management practices is never finished, at least as long as the tree is in the ground on the property.

(Winter storms, especially storms in late winter, can be responsible for damage)

Diagnosing damage

For maladies that occur in winter, a good starting point is to attempt to distinguish between winter damage and other causes. This may be easier for existing clients than for new ones, in that notes and comments made in the records for each day’s work or routine inspection can provide a basis for comparison. As each are considered, the “cause and recovery” approach should be utilized.

The most common causes of winter damage are mice and other critters, winter construction projects, sunscald, desiccation, winter storms and miscellaneous forces. Depending on the area of the country and the length of time trees are covered with ice and snow and the soil is frozen, lots of damage can happen over the winter, most of which neither the tree care worker/arborist or the property owner has any control over. In certain instances it may be coincidental and could have just as easily occurred in the summer.

Miscellaneous causes can also be classified as “additive” causes, where slope, inadequate room for shoots and roots to grow, impervious soils, cold temperature stress from fluctuating winter temperatures, or any combination thereof can cause trees to fail.

(John C. Fech is an ISA Certified Arborist, PNW ISA Certified Tree Risk Assessor at the University of Nebraska-Lincoln and a frequent contributor.)

(Article courtesy of Tree Services Magazine-http://www.treeservicesmagazine.com)

Arborist Ropes: Care and Maintenance

Care and Maintenance

 By Kate Leifheit

(Pick a color, any color.  Rope manufacturers often use bright colors so arborists can quickly and easily distinguish the ropes used for various arboricultural operations. Ropes are manufactured using a multitude of construction methods and materials, resulting in different tensile strengths and stretch.  It cannot be overstated how important it is for arborists to research and learn which rope is most compatible with their climbing or rigging system.  Proper rope selection and care is vital for performing safe and effective tree care. 
Photo courtesy of ISA.)

Ropes may be considered an arborist’s most important tools. They can be used to support limbs, tools or a person. Their adequacy as a tool is based on material, construction, tensile strength, elasticity and working-load limit. Manufacturing techniques, including the way rope strands and yarns are twisted and braided, also affect the characteristics and durability of various types of rope. Because of its role in supporting tree climbers or heavy limbs in rigging operations, it is of utmost importance to purchase ropes that are approved for tree work. Arborists shall maintain their ropes in proper working order and retire them once they show signs of excessive wear.

Common factors that weaken rope

Shock loading – This is a dynamic, sudden force placed on a rope or rigging apparatus when a moving load or piece is stopped. Shock loading can occur during rigging operations when a piece of wood falls and is then caught suddenly by a rigging system. The farther a piece falls before being caught by the system the greater the amount of force generated and experienced by the rope, rigging point and rigging system. Letting a piece run and bringing it to a stop more slowly will put less force on the rigging system and rope.

Sharp edges – Sharp edges can cut or cause heavy abrasion to a rope. These edges may appear naturally on a tree and affect a rope when you are using a natural branch union. Be aware of any sharp metal pieces embedded in trees that might cut a rope under tension. Sharp edges may also be present on climbing hardware or other equipment, meaning that proper inspection before each use is critical.

Stretch – Any time a load is placed on a rope stretch can occur. The rope may bend or get caught when a portion bears the majority of the load unevenly. This is due to forces resulting from the load not being able to flow or travel well beyond a bend in the rope. Depending on the bend, the part of the rope from the bend to the load may bear almost all of the force, and the part of the rope from the bend and away from the load may bear almost none of the force. This is considered an unequal load.

Friction – Friction occurs when a rope rubs against itself, another rope, hardware or a part of the tree. The rubbing causes wear on the rope, which decreases its strength over time. Using devices like blocks, pulleys, and ring friction savers correctly can help protect a rope from wear and extend its service life. Ropes that have a mantle sheath with larger strands generally have a higher resistance to abrasion.

(ANSI Z133 Safety Requirements for Arboriculture Operations section 8.1.4 states: “Arborists shall inspect climbing lines, worklines, lanyards and other climbing equipment for damage, cuts, abrasion and/or deterioration before each use and shall remove them from service if signs of excessive wear or damage are found.” 
Photo courtesy of ISA.)

Heat – Excessive heat is a natural enemy of most materials, and rope is no exception. Arborist ropes are subjected to a lot of heat. Friction causes heat when rope rubs against blocks, equipment, rigging points, tree limbs and other objects. Rope rubbing against rope also causes hot spots. Heat is a factor in reducing a rope’s service life. It’s important to take measures to avoid excessive friction or conditions that may produce excessive heat on your rope.

Moisture – This can cause strength loss in ropes depending on the material they’re constructed from. While nylon has some absorption properties and can lose strength when wet, a material like polyester does not experience strength loss due to moisture. This is one reason why most arborist ropes are constructed from polyester. It’s recommended that you store all of your ropes in a rope bag to keep them clean and dry. Do not use excessive heat to dry your ropes, and do not store them on the ground.

Knots – Each time a knot is tied in a rope it loses a percentage of its original strength.

Signs of a weak rope

Regular rope inspection shall be performed before each use to determine if the rope is still in proper working condition. During inspection, look for the following characteristics of a weak rope:

Discoloration – This may be an indication of chemical damage.

Variance in diameter – Variance in diameter may indicate core damage.

Hard spots and contamination – These usually signify a rope is excessively worn or weakened by overloading and shock loading.

Gloss, glaze and streaks – These indicate signs of heat or friction damage.

Frays, pulls and broken strands – If more than half of the outer sheath is frayed, then you should retire the rope immediately. Broken strands may indicate the rope was torn by friction, cut by a sharp edge, or the working-load limit was exceeded. Retire the rope immediately if two or more strands are broken.

Heavy abrasion – Usually caused by friction and extreme wear.

Milking – This is the shifting of the sheath leaving a rope end without a core.

Rope care

  • Here are some simple things you can do to increase the service life of a rope and limit damage:
  • Hang your rope off the ground or keep it in a rope bag. A rope can absorb chemicals from concrete or other porous surfaces when kept on the ground.
  • Use a rope washer or wash your rope in a washing machine on a delicate cycle to clean off dirt and grit. Do not use detergents or fabric softeners, and do not put the rope in a dryer. Ropes should be hung to dry.
  • Try to use the rope on smooth, natural branch union points or use a friction-reducing device to help maintain the rope’s original strength and lessen abrasion.
  • Keep the rope away from temperatures that can cause rope damage.
  • Cut off damaged portions of the rope and rotate the use of climbing line ends if not using a spliced eye.

(Tree care operations can be hard on ropes. Dynamic loads can cause shock loading, heavy loads can exceed the rope’s working-load limit, and natural branch union rigging can cause excessive friction. For these reasons, selecting a rope that is designed for the type of work that will be performed and inspecting ropes before each use is vital. 
Photo courtesy of Baltimore City Parks; www.flickr.com/photos/bmorerecnparks)

Monitor rope use

Monitoring the use of a rope will help you assess its condition and strength during daily inspections. Avoid using a rope that has been loaded above the working-load limit. Remember that the tensile strength decreases after each use of the rope. After purchasing a rope, write down:

  • the date the rope is put into service;
  • rope tensile strength;
  • the working-load limit;
  • its type of use; and
  • the approximate latest date the rope should be retired.

Once a rope is ready to be retired from climbing or rigging applications, it can still be used as a tag line. When disposing of an old rope, it’s best to cut the rope into short lengths to prevent someone else from using it.

(Don’t store your rope near sharp objects, and make sure blades in the work zone are covered/ sheathed when not in use
Photo courtesy of ISA.)

Remember these key points about rope safety:

  • Always visually and manually inspect ropes before each use and remove from service ropes that show signs of excessive wear or damage.
  • Always keep loads under the working-load limit.
  • All climbing gear, including lanyards, hardware, saddles and splices, must be in good working condition and not be altered in a way that would compromise the integrity of the equipment.
  • Rope should be clearly marked for specific use (i.e., which ropes are for climbing and which ropes are for rigging).
  • Never leave a rope unattended in a tree.
  • Review rope regulations and standards governing your region (in the U.S., refer to ANSI Z 133-2012 Safety Requirements for Arboricultural Operations section 8.1).

Carefully monitoring rope use, selecting the right ropes for the specific purpose, adhering to safety standards, and properly maintaining and storing your ropes and other equipment will help ensure a safe and efficient worksite.

To learn more about rope construction, maintenance and selection – and earn CEUs – visit ISA’s Online Learning Center (http://www.isa-arbor.com/OLC) to take the new course, Arborist Ropes. Kate Leifheit is ISA’s former educational products coordinator.

(Article courtesy of Tree Services Magazine-http://www.treeservicesmagazine.com)

 

Tree Care Tips: Proper Mulching and Pruning

(Courtesy of US Department of Agriculture)

Proper mulching and pruning of trees are important to their health. The following information from the USDA Forest Service addresses these two issues.

PROPER MULCHING:

Maintain a ring of mulch around the tree (the wider the better). Organic material like wood chips and leaves are best. Wood chips will take longer to break down and, therefore, will not require replacement as often.

TIP: Newspaper kills grass:
If there is grass in the area that needs to be mulched, put a 5-page layer of newspaper over the grass, and then add mulch on top (this will help keep the grass from growing up through the mulch). Mulch becomes soil. There should never be more than 4 inches of mulch over the roots. Too much mulch or soil can prevent oxygen from reaching the roots.

 

PROPER PRUNING:

Support the branch with one hand while you make the cut to prevent the bark from ripping. If the branch is too large to support, use the three-step method (see details below). For the final cut, look for the branch bark ridge and trunk collar. Begin the cut just outside of the branch bark ridge, and angle down away from the trunk. Stay close to the trunk collar without cutting into it (see images below)

Protect Yourself: What you wear could save your life

Protect Yourself: What you Wear Could Save Your Life

Personal protective equipment, or PPE, should be part and parcel of every climber or branch manager’s daily outfit, so normal and natural that the respective tree crew member feels near naked without it. Sadly this is not always the case. Equally sad is the reflection in the tree care industry accidents, injuries and death statistics of this all-too-common lack of PPE.TSM hardhat

The ANSI Standards show the tree care industry and its members the required steps to take on the path to safety, much like leading that horse to water, but there are a lot of tree folks who aren’t drinking from the PPE fountain and quite often suffer the consequences. A company, crew or individual can be fined for not wearing the required PPE on a worksite, which is a pretty strong incentive to put the gear on. However, the primary reason for wearing PPE is to protect oneself, so that at the end of the day you go home with all the pieces and parts that were there at the start of the day.

Even the latest, greatest and most advanced PPE is not going to protect folks who make bad decisions, use poor judgment, or use generally insane work practices, but wearing the required PPE will lessen the odds of a serious injury in the event of the unexpected.

There’s a large amount of economical PPE available that could be considered hot or uncomfortable while still meeting the basic requirements. While this is better than no PPE at all, discriminating tree folk should be aware that just as the tree industry has grown and modernized, so has the PPE available, leaving crews with a number of options that are cooler, more comfortable, less foggy and more stylish. Regardless of whether the crews are rocking old-school or new PPE, the point is protection not just over the course of a workday, but over the course of a tree climber’s career.

Table 1 shows how easy the ANSI standard required PPE can be broken down: head, eye, leg/lower bodyand hearing/ear. Leg/lower body in the tree care industry is referring to chain saw chaps or pants, both of which have evolved enormously to provide users with more comfortable, better-vented options.

table 1

In general, clothing and footwear are not covered in a great deal of detail under ANSI, but understandably tree folk should be making choices that are suitable for a dirty, skin shredding and tripping hazard environment, not for threads that look good in the club. States, provinces and municipalities can choose to exceed these standards, so tree companies should also be familiar with their local regulations and requirements.

TSM CHAINSAW GEAR

 Head, leg, ear, eye protection, even safety footwear, this saw operator has it going on in the PPE department.

Take care of them, they’ll take care of you

All PPE needs to be cleaned and cared for, otherwise it won’t perform as required. Daily inspection and maintenance should be a part of appropriate PPE use.

Helmets and/or hard hats need to be inspected regularly for cracks or breakdown of the plastic from sun exposure. An excellent way to quickly check the material integrity of a hard hat or helmet is to push the edges together, and then let it go. The helmet should quickly return to its original shape; if it lags a bit or stays bent inward, it’s time to get a new one. Any helmet or hard hat that takes an impact should be discarded. The suspension system inside, the heart of impact safety for a helmet, should not be altered and it should be inspected regularly. In addition, storing smokes, chew, beef jerky or other items between the impact-absorbing webbing of the hard hat/helmet and the shell is an excellent way to reduce the effectiveness of the helmet, so keep that stuff in the truck; you should probably quit anyway.

Keeping glasses or goggles in a soft container will prevent scratches and nicks that make them difficult to see out of, and you’ll always know where they are.

Any form of chain saw protective clothing should be washed periodically to remove oils, dirt and dust that can lessen the effectiveness of the chain saw-resistant fibers. Check the label for the correct laundry settings; drip or air drying is typically the best option.

Threads and dogs

As stated above, ANSI is not very specific on clothing and footwear for the tree care industry, but hopefully for most tree workers a certain amount of common sense prevails. The environment in which tree work takes place is often not that friendly to bare skin and ill-protected feet, with heavy, abrasive items often moving or rolling at high speeds, or needing to be picked up and moved around.

Boots intended for a worksite instead of line dancing are a good way to keep those “dogs” protected, and some form of hard toe caps can help stop injuries, while also allowing for excellent tire-kicking qualities.

TSM CLIMBER

A climber aloft with not only all the required PPE on, but also high-visibility outerwear. Photo by Michael Tain.

The type of clothing, or threads, that a crew wears can affect how they’re perceived by customers and the public, not to mention any passing law enforcement officials. Professional high-visibility shirts with company logos, even in a casual T-shirt style, will go a long way toward helping a crew of less-than-savory-appearing tree folk look more professional and less intimidating. In addition, the availability of breathable, high-tech fabric clothing designed for tree work movements have made the daily pile of sweaty, putrid, cotton T-shirts and jeans with ripped crotches a pleasant, but unmourned, memory.

Melons and maples

While a ball cap with the bill appropriately shaped or unshaped, depending on preference, may be quite stylish and keep one looking good cutting wood, it won’t be very helpful when a maple hits the melon. Modern head protection is filled with options for tree care personnel, so each individual can find the option that is comfortable for their noggin and appropriate for their work. These options run the gamut from basic construction/forestry type hard hats up to mountaineering-style helmets with vents and integrated eye/ear protection.

Regardless of choice, you should make sure the hard hat/helmet meets the standards for tree work, and that it’s sufficient to protect you from an impact from above? The majority of helmets come with built-in chin strap systems, which can be helpful while in the tree or on the ground. Most hard hats have some sort of chin strap add-on available.

As mentioned in maintenance, the suspension system of both hard hats and helmets is what absorbs the impact, so cutting straps for comfort, or using it for storage, is going to reduce its effectiveness. Crews doing full-on line clearance work or working near electrical conductors will need hard hats/helmets that are Class E. Keep in mind that the vents meant to keep the melon cool in non-Class E hard hats are a path for the voltage.

The eyes have it

The national standard for eye protection required under ANSI is termed Z87.1. The glasses or goggles that meet the standard will usually have this number printed on them or on the box/instructions. Most modern safety glasses are impregnated with antifogging and anti-scratch surfaces, both important features when climbing on a hot, humid day. There are also a number of lens wipes and gels that can help keep the glasses functional. These products can be used periodically throughout the day to keep glasses functional and fog free.

Built-in mesh screens on hard hats or helmets are meant as face protection and don’t qualify under the standards as eye protection. Operators using these types of face screens must wear glasses or goggles beneath the screen. For those workers who cannot find an acceptable set of safety glasses because of prescription requirements or extreme sweating capabilities, some helmet/hard hat systems come with plastic shields that qualify as eye protection.

Britches and stitches

As can be seen in the PPE requirements table, the standards only require chaps or chain saw pants when operating a chain saw on the ground, though this can vary by state or province. However, personal experience has shown that wearing leg/lower body protection aloft is highly recommended as a form of “cheap” insurance. While professionally manufactured chaps certainly meet the requirements, tree workers will often find that pants or bib-style overalls are more comfortable, flexible, and user friendly in the tangled strap snagging environment that is most tree work sites.

I can’t hear you

While the standard requires hearing protection after noise reaches or exceeds an eight-hour average of 85 decibels, an easier way to protect the hearing is to put muffs on or plugs in whenever loud stuff (chain saws, chippers, grinders) is running. Many hard hat and helmet systems have muffs built into them for easy use, and there are a variety of plugs available with strings and attachment options. Users of plugs should keep in mind that regardless of type, they need maintenance and replacement, so keep them clean and functional so the ears will remain likewise.

Personal protective equipment, or PPE, use will not only help tree care crews be safer through the day, but also help lengthen their careers by preventing or minimizing injuries that might shorten it; and while a fine for violating the PPE requirements would certainly hurt, it is not nearly as painful as having to explain to someone’s loved ones why they are not coming home.

REMEMBER: Protect yourself: What you wear could save your life!

(*Article courtesy of Tree Services Magazine- http://www.treeservicesmagazine.com/. Written by  Michael (House) Tain, a contract climber, splicer, educator and writer associated with North American Training Solutions/Arbor Canada Training and Education, currently located in Lancaster, Ky.)

TCIA Reports 2013 Tree Care Accidents

The Tree Care Industry Association (TCIA) reviewed 158 occupational tree care accidents reported by the media in 2013. Of these accidents, 79 were fatal. The average age of the deceased was 40.6, and the average age of the serious accident victim was 37.7.

These findings are very similar to the 2012 findings, where TCIA recorded 84 fatal accidents. However, the number of non-fatal accidents increased dramatically to 79 from the 44 reported during the 2012 calendar year.

Picture1

Summary of Findings:
An analysis of the fatal accidents categories revealed the following insights:
• Of the 14 fatalities attributed to falls from trees:
• Six could be attributed to failure of the tree, or a major limb.
• Two were caused by climbing system failure.
• In one instance, the victim cut through his own climbing system. In a separate incident, the victim was tied to the limb that was cut.

Of the 12 fatalities attributed to electrocution:
• Three victims were electrocuted through conductive tools or equipment such as metal saws, gas-powered stick saws, metal ladders and un-insulated lifts.
• Five victims made direct contact with conductors.
• It could not be determined how five of the victims made contact.

There was insufficient detail in the accounts of the 12 struck-by-tree fatalities to allow any further analysis. Similarly, the 13 struck-by-tree-limb fatalities lacked enough detail for further analysis.

Of the nine fatalities attributed to falls-from-aerial-lifts:
•The victim was not secured in the bucket in six instances. In one of these six cases, the victim’s ejection from the bucket was caused by a cut tree limb striking the bucket.
•There were two cases in which the upper boom failed, apparently without any external “assistance,” sending the operator to the ground.
•There was one case in which a blow from a falling limb caused the boom to shear off.

Non-fatal accidents are not reported in the media with enough consistency and clarity to allow analysis.

These sobering numbers are a stark reminder of the dangers of tree care, and highlight the need for tree care companies, along with homeowners and the property managers who hire them to uphold the highest standards for worker safety.

“Unfortunately for the industry overall, serious accidents seem to be increasing,” said Peter Gerstenberger, Senior Advisor for Safety, Standards & Compliance for TCIA. “We need to transform the industry and create a safety culture that will keep all tree workers safe in an inherently hazardous occupation.”

(*TCIA compiled this data using Google alerts, OSHA investigations, and reports from colleagues in the industry. Most accounts of fatal tree care accidents identified the tree care company involved, which allowed TCIA to calculate the percentage of accidents that involved TCIA member companies. TCIA found that only 12.7% of the recorded accidents can be attributed to TCIA member companies. Non TCIA member companies are responsible for 72.2% of the recorded accidents. The remaining 15.2% accidents lack attribution due to insufficient data.)

*This article is reprinted courtesy of the Tree Care Industry Association. (TCIA)

Chainsaw Chain: Types and Applications

 

Chainsaw Chain

chainsaw chain

All chainsaw chain is not created equal! There are three different types of chainsaw teeth and sequences used in the arborist industry; chisel, semi-chisel, and skip chisel.  All of them have different uses and applications.Along with the different types of chain, there are also three cutter sequences;  standard (chisel & semi-chisel), skip, and semi-skip.Chisel chain has a square cornered tooth that cuts wood quickly and easily for fast, efficient cutting in clean softwood. This is the fastest cutting of the three types of chains and the type of chain most often used.

Semi-chisel chain has a rounded cornered tooth formed by a radius between the top and side plates. While 10% slower cutting than full chisel chain, semi-chisel chain retains it’s sharpness longer. This makes it a good choice for cutting in a dirty environment, frozen wood, hard wood, or for stump work. Hitting dirt won’t dull the chain as quickly as it would chisel chain.

Skip and semi-skip chisel chain have less cutter teeth than the standard chain. Generally they are used on bars longer than 24″ for added chip clearance or when a bar longer than is recommended for a chainsaw is used.  Fewer teeth means it takes less power to operate.

There are also three size issues to know about chainsaw chain. Gauge – the thickness of the drive links (i.e. .050, .058, .063); pitch – the distance between two rivets (i.e. .325, 3/8, .404), and the length measured by the number of drive links.  All three numbers must be known to get the proper size chain for your saw.  Most of the time these numbers can be found on the bar.

Be safe with your chainsaw. Use the correct type of chain for your application.

 

Climbing Ropes and Harnesses

AAS CAT BACK COVER-SMALL

Climbing Ropes and Harnesses: Are You Performing Daily Safety Checks

One task in the arborist industry that is not performed as often as it should be is the safety inspection of climbing ropes and saddles. Since your life depends on your safety gear they must be free from excessive wear, tears, and damage that could lead to catastrophic equipment failure. Daily inspection of these items is not only prudent but required under ANSI standards.

The following excerpt is taken from the The ANSI Safety Requirements for Arboricultural
Operations -(ANSI Z133.1)

“Chapter 8: Work Procedures

8.1        Ropes and Arborist Climbing Equipment

8.1.4 – “Arborists shall inspect climbing lines, work lines, lanyards, and other
climbing equipment for damage, cuts, abrasion, and/or deterioration before each
use and shall remove them from service if signs of excessive wear or damage are
found.

8.1.5 – Arborist saddles and lanyards used for work positioning shall be identified
by the manufacturer as suitable for tree climbing.

8.1.6 – Arborist saddles and lanyards used for work positioning shall not be altered
in a manner that would compromise the integrity of the equipment.”

At  American Arborist Supplies all of our saddles, ropes, and other climbing
equipment meet all of the applicable ANSI safety standards. As a general rule
of thumb, climbing saddles and ropes that receive everyday use should be replaced
at the very minimum every 5 years even if they are not showing any obvious signs
of wear. The constant use of these items (stretching, varying weight loads, abrasion
against carabiners and other objects, etc.) may cause internal damage to them that
is not visible to the naked eye.

While conducting a daily safety inspection of your equipment may take a few extra
minutes, think of your loved ones. They will thank you for taking the time to care.

How to Harness the Power of a Chainsaw

Are you interested in how chainsaws can help you trim trees and shrubs with speed and ease, but you’re not sure how to harness the power? Figuring out how to use a chainsaw is an important matter of safety and efficiency. By reading the following short guide, you can begin your path to chainsaw expertise.chainsaw collage

Where to Cut

You probably already know that a chainsaw is a rotating chain of blades attached to a motor, but you may not know that cutting at different sections of the chain produces different effects. The kickback zone, which is the top half of the tip of the saw, can violently kick back toward you if you use it to cut through tough surfaces. Most people prefer to use the bottom half of the saw for cutting as the saw pulls slightly, making it easy to control.

Basic Safety

By following a few common guidelines, you can avoid the most common injuries to the left arm and thigh. When running the saw, always keep your left thumb wrapped around the front grip. This can prevent dangerous kick back. Carry the saw in your left hand at the front grip in order to prevent the chain from accelerating should you fall. Finally, always make sure to wear safety gear, including a helmet, goggles, gloves, steel-toed boots, ear protection and chaps.

Proper Strategy

Before starting any cut, develop a strategy to meet your goals. Think about each branch and where it’s going to fall so that you are in a safe position. When cutting down a whole trunk, make sure there is a clear path on the ground before you begin cutting. Always give a loud audible signal to any ground personnel or other bystanders before making a cut.

Chainsaws are efficient tools for a wide variety of jobs on your property. Before you begin cutting, make sure to consider all the following:

  • Know how the chainsaw behaves in all scenarios
  • Make sure you have the right size chainsaw (powerwise) and bar for the job at hand
  • Exercise proper safety precautions at all times
  • Create a plan of action for each cut

Are you ready to take advantage of  a chainsaw? As an authorized HUSQVARNA and STIHL dealer we can outfit you with the proper saw for the job!

Climbing Saddles: Must-Know Information for First-Time Buyers

You’re ready to purchase your first climbing saddle, but do you know what features define the best saddles? Your most important considerations are comfort and safety. Once you climb a tree with chainsaw in hand, the last thing you need is a saddle that is too large or too small or loosens as you move.

Comfort Features

cougar

Modern climbing saddles come in different styles. Various padding options, seats or independent legs straps, along with fixed or floating “D” rings leads to many choices. You want a durable material that will hold your weight securely, but the padding inside the waistline and around the leg should make the saddle more comfortable. One of our most popular saddles, the Weaver COUGAR, features a foam back pad for comfort and greater back support. and is available with or without a batten seat,

Adjustable Features

A safe climbing saddle will fit your body perfectly, and that will only happen with an adjustable saddle. For example, the imported Kolibri Click saddle allows you to adjust for bridge height and seat depth in addition to adjusting the waist and leg strap for a secure and comfortable fit.

What about Ergonomics?

There are some climbing saddles that promote their ergonomic designs as a major advantage over other saddles. One example is the Buckingam ERGOVATION Saddle, which allows you to safely adjust the fitting of the saddle while you are climbing. The main selling point for these saddles is greater support for your body because the designs are created to allow natural movement and coordination of all body parts. If you feel confined or limited in motion by other saddles, you could benefit from going with something ergonomically designed.

You will increase your chances of selecting the best climbing saddle when you think about all of these features before making the purchase:

  • Make sure adequate padding is offered around the legs and waist.
  • Look for adjustable fittings.
  • Consider ergonomically designed saddles for greater freedom of motion.

Now that you know what to look for, are you ready to own your first saddle?

Why Arborist Rope is Essential for Tree Climbing

Are you shopping for the best prices on tree climbing rope? Are you wondering if arborist grade rope is essential? You may come across lower grade rope that costs less than arborist rope, but there are some essential reasons to stick with arborist grade rope for safe tree climbing.

Arborist cutting tree

Purposeful Design

Climbing up a tree is quite different from climbing up the side of a mountain or sliding down the side of a building for an emergency rescue. It only makes sense that rope used by an arborist is designed specifically for the unique climbing conditions that come into play with trees. For instance, rope designed for use in trees will meet minimum strength requirements,  handle abrasion from tree bark, and have a good hand for ascending yourself into a tree.  Ropes designed for other applications are lacking in these attributes.

Breaking Strength

The minimum required tensile strength for arborist climbing ropes is 5,600 pounds. The tensile strength is important because the rope must support your body weight plus the weight of your chainsaw, saddle and other equipment along with being able to withstand shock loads. Rope stretch is also an important factor to consider; too little stretch and a fall could snap your back;  too much stretch makes it difficult to operate a chainsaw safely.

Heat Resistance

Rope designed for tree climbing is more resistant to heat than many other types of rope. This is important since heat is created when the climbing knot slides by the rope.

Before deciding you want to cut expenses by using a lower grade rope for tree climbing work, ask the following questions of those other ropes:

  • What type of work was the rope designed to handle?
  • How does that intended work compare to tree work?
  • What is the tensile strength of the rope?
  • How resistant is the rope to heat, abrasion, and stretch?

Your safety is in the hands of your rope, so why not stick with an arborist rope that you can trust?