Husqvarna 1153136-95 Tree felling technique, Safe distance, Felling direction, Directional cuts

Page 23

WORKING TECHNIQUES

The log is lying on the ground. There is little risk of the chain jamming or the object splitting. However there is a risk that the chain will touch the ground when you finish the cut. (68)

Cut all the way through the log from above. Avoid letting the chain touch the ground as you finish the cut. Maintain full throttle but be prepared for what might happen. (69)

If it is possible (can you turn the log?) stop cutting about 2/3 of the way through the log.

Turn the log and finish the cut from the opposite side. (70)

The log is supported at one end. There is a high risk that it will split. (71)

Start by cutting from below (about 1/3 of the way through).

Finish by cutting from above so that the two cuts meet.

(72)

The log is supported at both ends. There is a high risk that the chain will jam. (73)

Start by cutting from above (about 1/3 of the way through).

Finish by cutting from below so that the two cuts meet.

(74)

Tree felling technique

IMPORTANT! It takes a lot of experience to fell a tree. Inexperienced users of chain saws should not fell trees. Do not attempt any task beyond your experience level!

Safe distance

The safe distance between a tree that is to be felled and anyone else working nearby is at least 2 1/2 tree lengths. Make sure that no-one else is in this ”risk zone” before or during felling. (75)

Felling direction

The aim is to fell the tree in a position where you can limb and cross-cut the log as easily as possible.You want it to fall in a location where you can stand and move about safely.

Once you have decided which way you want the tree to fall you must judge which way the tree would fall naturally.

Several factors affect this:

•Lean of the tree

•Bend

•Wind direction

•Arrangement of branches

•Weight of snow

•Obstacles within the reach of the tree: for example, other trees, power lines, roads and buildings.

•Look for signs of damage and rot in the stem, this makes it more probably that the tree will break and start to fall before you expect it to.

You may find you are forced to let the tree fall in its natural direction because it is impossible or dangerous to try to make it fall in the direction you first intended.

1153136-95 Rev.2 2010-04-08

Another very important factor, which does not affect the felling direction but does affect your safety, is to make sure the tree has no damaged or dead branches that might break off and hit you during felling.

The main point to avoid is letting the tree fall onto another tree. It is very dangerous to remove a trapped tree and there is high accident risk. See instructions under the heading Freeing a tree that has fallen badly. (76)

IMPORTANT! During critical felling operations, hearing protectors should be lifted immediately when sawing is completed so that sounds and warning signals can be heard.

Clearing the trunk and preparing your retreat

Delimb the stem up to shoulder height. It is safer to work from the top down and to have the tree between you and the saw. (77)

Remove any undergrowth from the base of the tree and check the area for obstacles (stones, branches, holes, etc.) so that you have a clear path of retreat when the tree starts to fall. Your path of retreat should be roughly 135 degrees away from the intended felling direction. (78)

1Danger zone

2 Retreat path

3 Felling direction

Felling

WARNING! Unless you have special

! training we advise you not to fell trees with a diameter larger than the bar length of your saw!

Felling is done using three cuts. First you make the directional cuts, which consist of the top cut and the bottom cut, then you finish with the felling cut. By placing these cuts correctly you can control the felling direction very accurately.

Directional cuts

To make the directional cut you begin with the top cut. Aim using to the saw’s felling direction mark (1) toward a goal further forward in the terrain, where you would like the tree to fall (2). Stand on the right-hand side of the tree, behind the saw, and cut with a pull stroke.

Next make the bottom cut so that it finishes exactly at the end of the top cut. (79)

The directional cuts should run 1/4 of the diameter through the trunk and the angle between the top cut and bottom cut should be 45°.

The line where the two cuts meet is called the directional cut line. This line should be perfectly horizontal and at right angles (90°) to the chosen felling direction. (80)

English – 23

Page 22 Page 24
Image 23
Page 22 Page 24
Contents 445 445e 450 450e 1153136-95 Rev.2 1153136-95 Rev.2 4243 1153136-95 Rev.2 112 113 Decompression valve The valve KEY to SymbolsSymbols on the machine and/or in the manual Contents Dear customer What is what on the chain saw?Introduction Before using a new chain saw General Safety PrecautionsChain brake and front hand guard Machine′s safety equipmentAlways use common sense Personal protective equipmentRight hand guard Stop switchThrottle lockout Chain catcherCutting equipment designed to reduce kickback Cutting equipmentMuffler General rulesTensioning the chain Sharpening your chain and adjusting depth gauge settingLubricating cutting equipment Checking wear on cutting equipment Needle bearing lubrication445e, 450e AssemblyFitting the bar and chain 445Fuel Fuel HandlingLong-term storage Fuel safetyFueling Transport and storageStopping Starting and StoppingStarting and stopping StartingGeneral working instructions Basic safety rulesWorking Techniques Before useLimbing Basic cutting techniqueTerms Clearing the trunk and preparing your retreat Tree felling techniqueSafe distance Felling directionFreeing a tree that has fallen badly How to avoid kickbackWhat is kickback? General MaintenanceCarburetor adjustment Replacing the starter cord MufflerStarter Needle bearing lubrication Air filterSpark plug Lubricating the bar tip sprocketWinter use Air Injection centrifugal cleaningTemperature -5C 23F or colder Cooling systemDaily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical Data058/1,5 mm Bar and chain combinationsSaw chain filing and file gauges 050/1,3 mmYour Warranty Rights and Obligations Federal Emission Control Warranty StatementMAINTENANCE, Replacement Repair of EMISSION-RELATED Parts Other safety precautions American Standard Safety PrecautionsSafety precautions for chain saw users Kickback safety precautions1153136-95 Rev.2 Original instructions 1153136-95

1153136-95 specifications

The Husqvarna 1153136-95 is a high-performance chainsaw designed for ease of use and efficiency, making it an ideal choice for both residential and professional users. Known for its robust build and reliability, this chainsaw is particularly well-suited for tasks such as tree pruning, cutting firewood, and managing landscaping projects.

One of the standout features of the Husqvarna 1153136-95 is its lightweight design. Weighing in at just around 10 lbs, it allows users to easily maneuver during extended periods of operation without causing excessive fatigue. This is complemented by an ergonomic handle that provides a comfortable grip, reducing strain on the hands and wrists.

The chainsaw is powered by an efficient and reliable engine. With a displacement of 38.2 cc, it delivers ample power for most cutting tasks while maintaining fuel efficiency. The technology incorporated into its engine design ensures lower emissions, making it an environmentally friendly option in the category of gas-powered chainsaws.

Another impressive feature of the Husqvarna 1153136-95 is the X-Torq technology. This innovatively engineered system reduces fuel consumption by up to 20%, resulting in longer runtimes between refueling. Additionally, it minimizes harmful exhaust emissions, meeting stringent environmental regulations and standards.

The chainsaw also includes an automatic oil pump that ensures a consistent flow of lubrication to the bar and chain, enhancing longevity and reducing wear during use. This feature allows users to focus on their tasks without frequently stopping to manage oil levels.

Additionally, the tool-less chain tensioning system is designed for user convenience, enabling quick adjustments on the fly without needing additional tools. This feature is especially useful for those who are busy or working under time constraints.

Safety is a priority with the Husqvarna 1153136-95, as it comes equipped with a chain brake system designed to stop the chain in the event of a kickback. This important safety feature provides peace of mind for users, especially those new to chainsaw operation.

Overall, the Husqvarna 1153136-95 combines performance, user-friendliness, and advanced technology, rendering it a versatile tool suitable for various cutting tasks. Whether tackling home maintenance or professional projects, this chainsaw is engineered to deliver reliable results and satisfy the demands of users.
Top Page Image Contents