Jonsered 670, 625, 630 manual Vibration damping system, Stop switch, Muffler

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SAFETY INSTRUCTIONS

5 Vibration damping system

Your chain saw is equipped with a vibration damping system that is designed to minimise vibrations and make operation easier.

When you use a chain saw vibrations are generated by the uneven contact between the chain and the wood you are cutting.

Cutting hardwoods (most broadleaf trees) creates more vibration than cutting softwoods (most conifers). Cutting with a chain that is blunt or faulty (wrong type or badly sharpened, see section

D)will increase the vibration level.

The vibration damping system reduces the vibrations transmitted from the engine and chain to the handles of the chain saw. The body of the saw, including the cutting equipment, is insulated from the handles by vibration damping units.

!Overexposure to vibration can lead to circulatory damage or nerve damage in people who have impaired circulation.

Contact your doctor if you experience symptoms of overexposure to vibration. These symptoms include numbness, loss of feeling, tingling, pricking, pain, loss of strength, changes in skin colour or condition. These symptoms normally appear in the fingers, hands or wrists.

6 Stop switch

Use the stop switch to switch off the engine.

7 Muffler

The muffler is designed to keep noise levels to a minimum and to direct exhaust fumes away from the user.

!The exhaust fumes from the engine are hot and may contain sparks which can start a fire. Never start the saw indoors or near combustible material!

In countries with a hot climate there is a high risk of forest fires. Our chain saws are therefore fitted with a SPARK ARRESTOR MESH.

Check whether your saw is fitted with such a mesh.

With this type of muffler it is very important that you follow the instructions on checking, maintaining and servicing your saw (see the section on ”Inspecting, maintaining and servicing chain saw safety equipment”).

!The muffler gets very hot in use and remains so for a short time afterwards. DO NOT TOUCH THE MUFFLER IF IT IS HOT!

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Contents Operator´s manual Symbols on the chain saw KEY to SymbolsSymbols in the operator’s manual Contents Personal Protective Equipment Safety InstructionsChain brake and front hand guard Chain catcher Throttle lockRight hand guard Vibration damping system Stop switchMuffler Checking the brake trigger Checking brake band wearChecking the front hand guard Checking the automatic brakeThrottle lock 5 basic rules Cutting EquipmentSome terms that describe the bar and chain Cutting equipment designed to minimise kickbackBar Saw chainGeneral information on sharpening cutting teeth Sharpening your chain and adjusting raker clearanceSharpening cutting teeth Setting the raker clearance General advice on setting raker clearanceTensioning the chain Never use waste oil Lubricating cutting equipmentChain oil Filling with chain oilLubricating the bar tip sprocket Checking chain lubricationLubricating the clutch drum bearing Checking wear on cutting equipmentWhat is kickback? HOW to Avoid KickbackDo not let go of the handles General rulesNever use the saw one- handed Engine, chain lubrication oil mist and/or Min m10 ft Prolonged inhalation of exhaust gases fromGeneral Working Instructions Basic safety rulesCutting Basic cutting techniqueGeneral TermsFelling direction Tree felling techniqueSafe distance LimbingFelling Clearing the trunk and preparing your retreatFreeing a Trapped tree General adviceFreeing a tree that has fallen badly = high accident risk Cutting the trunk into logsWhat is what? What is WHAT?Mounting guide bar and chain AssemblyFitting a spike bumper Fuelmix Fuel HandlingChain oil Fuelling Start and stop Start and StopCarburettor MaintenanceTensioning the recoil spring Starter device assemblyStarter device Changing a broken or worn starter cordSpark plug Needle bearing maintenanceAir filter SilencerCooling system Temperature -5C or colderWinter use Monthly maintenance Weekly maintenance Daily maintenance625 630 670 Technical DataBar and chain combinations Page 108 87

630, 670, 625 specifications

The Jonsered 625, 670, and 630 chainsaws represent a robust line of products designed specifically for both professional and amateur users who require reliability, power, and efficiency in their cutting tasks. These models are a testament to Jonsered's commitment to innovation and performance in the forestry and outdoor equipment sector.

The Jonsered 625 features a compact design, making it ideal for users who need a lightweight tool for trimming, pruning, or cutting smaller trees. This model is equipped with a powerful engine that delivers an impressive power-to-weight ratio, enabling users to handle tough jobs without feeling fatigued. One of the standout features of the 625 is its ergonomic design, including a comfortable handle and optimized balance, which significantly reduces operator strain during extended use.

Meanwhile, the Jonsered 670 is tailored for those who need a bit more power and capacity. It is versatile enough to handle medium-sized cutting tasks as well as heavy-duty use. This model is designed with advanced vibration dampening technology, minimizing vibrations transferred to the user's hands, thus enhancing comfort and precision. The 670 also incorporates the Easy Start system, which makes starting the saw simple, even after long periods of inactivity.

The Jonsered 630 stands at the higher end of this trio, aimed at professional users who demand peak performance. With an increased engine size and enhanced cutting speed, the 630 can tackle larger trees and tougher materials with ease. This model features a high-performance air filtration system that ensures the engine remains clean and runs efficiently. Additionally, the 630 incorporates a centrifugal air cleaning system that prolongs service intervals and reduces maintenance needs.

All three models come equipped with cutting-edge technologies such as the X-Torq engine, which lowers fuel consumption and exhaust emissions, making them environmentally friendly options in today's market. These chainsaws incorporate safety features like chain brakes and low kickback chains, ensuring user safety during operation.

In summary, the Jonsered 625, 670, and 630 chainsaws each offer distinct advantages catering to various user needs, from homeowners tackling light-duty tasks to professionals requiring robust, high-performance machinery. The blend of technology, ergonomic design, and safety ensures that Jonsered continues to be a trusted name in outdoor power equipment. These chainsaws not only deliver superior cutting performance but also provide a seamless user experience.
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