Husqvarna 346XP 351 manual Tree felling technique, Safe distance, Limbing, Felling direction

Page 21

SAFETY INSTRUCTIONS

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

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

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

3 Tree felling technique

It takes a lot of experience to fell a tree. Inexperienced users of chain saws should not fell trees. NEVER ATTEMPT A TASK YOU ARE UNSURE OF.

A Safe distance

The safe distance between a tree that is to be felled and anyone else working nearby is at least 21/2 tree lengths.

Make sure that no-one else is in this “risk zone” before or during felling.

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

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

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

Limbing

When limbing thick branches you should use the same approach as for cutting.

Cut difficult branches piece by piece.

1

2

 

 

3

B Felling direction

The aim is to fell the tree in the best possible position for subsequent limbing and cross-cutting. You want it to fall on ground where you can move about safely.

The main point to avoid is letting the tree fall onto another tree. It can be both difficult and dangerous to remove a tree in such a position (see point 4 in this section).

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

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.

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.

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

English – 21

Image 21
Contents English 346XPSymbols KEY to SymbolsContents Personal Protective Equipment Safety Instructions3a Starting Chain brake and front hand guardThrottle lock Chain catcherRight hand guard Stop switch Vibration damping systemMuffler Checking the front hand guard Checking brake band wearChecking the inertia brake release Checking the brake triggerThrottle lock 5 basic rules Cutting EquipmentBar Cutting equipment designed to minimise kickbackSaw chain Some terms that describe the bar and chainSharpening your chain and adjusting raker clearance General information on sharpening cutting teethSharpening cutting teeth General advice on setting raker clearance Setting the raker clearanceTensioning the chain Lubricating cutting equipment Chain oilFilling with chain oil Checking chain lubrication Needle bearing maintenanceChecking wear on cutting equipment Lubricating the bar tip sprocketWhat is kickback? HOW to Avoid KickbackDo not let go of the handles General rulesGeneral Safety Precautions Basic safety rules Min m10 ft General Basic cutting techniqueTerms CuttingSafe distance Tree felling techniqueLimbing Felling directionFelling Clearing the trunk and preparing your retreatCutting the trunk into logs Freeing a tree that has fallen badly = high accident riskFreeing a Trapped tree Cutting trees and branches that are in tension PreparationsWhat is what? What is WHAT?Assembly Mounting guide bar and chainFitting a spike bumper Fuelmix Fuel HandlingChain oil FuellingMin 3 m 10ftStart and stop Start and StopStart StopCarburettor MaintenanceStarter device Starter device assemblyChanging a broken or worn starter cord Tensioning the recoil springNeedle bearing maintenance Spark plug Air filterMuffler Centrifugal cleaning Air Injection Adjustment of the oil pump Heated handles 346XPG, 351GCooling system Winter useMonthly maintenance Weekly maintenance Daily maintenance346XP 351 Technical DataBar Chain Bar and chain combinations2001W49 114 00

346XP 351 specifications

The Husqvarna 346XP and 351 chainsaws are celebrated models within the Husqvarna lineup, recognized for their excellence in performance, efficiency, and ease of use. Designed predominantly for professional use, these chainsaws incorporate advanced technology and ergonomic features that cater to the needs of tree care specialists, landscapers, and serious woodworkers.

One of the standout features of the Husqvarna 346XP is its lightweight design, which allows for easy maneuverability and reduced fatigue during extended use. Weighing around 10.8 pounds, the chainsaw is equipped with a powerful 50.1cc, 2.8 horsepower engine, delivering exceptional cutting performance while maintaining efficient fuel consumption. The model comes equipped with a 15 to 18-inch guide bar, providing versatility for various cutting tasks, from limbing to felling small trees.

The 351 model offers similar performance metrics but is designed slightly differently, featuring an improved air injection system for cleaner operation. This system actively collects debris before it reaches the air filter, extending the service intervals and enhancing engine life. The powerful 51.7cc engine on the 351 provides a higher power output compared to the 346XP, suited for even the most demanding cutting jobs.

Both chainsaws utilize Husqvarna’s X-Torq engine technology, which reduces fuel consumption by up to 20% while lowering emissions. This not only promotes environmental sustainability but also translates into cost savings for users. The LowVib technology integrated into both models minimizes vibrations, ensuring a more comfortable experience and reducing operator fatigue.

Enhanced safety features are also paramount in both chainsaws. The inertia-activated chain brake activates quickly in the event of a kickback, providing an additional layer of protection. An adjustable oil pump allows users to control the lubrication rate, optimizing the chainsaw's performance based on the type of work being performed.

The ergonomic design of the handles enhances grip and control, allowing for precision cutting. These chainsaws are user-friendly, catering to both experienced operators and those new to chainsaw work. Overall, the Husqvarna 346XP and 351 represent a perfect blend of power, technology, and comfort, making them reliable choices for professional and serious amateur users alike.