Jonsered 630, 625, 670 manual Cooling system, Winter use, Temperature -5C or colder

Page 32

MAINTENANCE

Cooling system

To obtain the lowest possible running temperature the saw is equipped with a cooling

system.The cooling system5 consists of:

1.

Air intake on the starter

4

 

unit.

 

2.

Air guide plate.

3

 

3.

Fan blades on the

 

 

flywheel.

 

4.

Cooling fins on the

2

 

cylinder.

 

 

 

 

1

5. Cylinder cowling (supplies cold air over the cylinder).

Clean the cooling system with a brush once a week, more often in demanding conditions. A dirty or blocked cooling system results in the saw overheating which causes damage to piston and cylinder.

Winter use

During winter time, powder snow and cold weather can cause running problems, such as:

•Too low engine temperature.

•Icing on the air filter and carburettor. Therefore some special measures are required:

•Partly reduce the air inlet of the starter and by doing that increase the engine temperature.

•Preheat the intake air to the carburettor by removing the special plug between the cylinder and the carburettor space.

Temperature -5°C or colder:

Twist the cover flap so that preheated air from the cylinder can enter the carburettor chamber to prevent icing of the filter. Fit the rubber seal to the fuel pipe by the main air intake.

IMPORTANT! Any maintenance other than that described in this manual must be carried out by your servicing dealer.

32 – English

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Contents Operator´s manual Symbols in the operator’s manual KEY to SymbolsSymbols on the chain saw Contents Safety Instructions Personal Protective EquipmentChain brake and front hand guard Right hand guard Throttle lockChain catcher Muffler Stop switchVibration damping system Checking brake band wear Checking the front hand guardChecking the automatic brake Checking the brake triggerThrottle lock Cutting Equipment 5 basic rulesCutting equipment designed to minimise kickback BarSaw chain Some terms that describe the bar and chainSharpening cutting teeth Sharpening your chain and adjusting raker clearanceGeneral information on sharpening cutting teeth Tensioning the chain General advice on setting raker clearanceSetting the raker clearance Lubricating cutting equipment Chain oilFilling with chain oil Never use waste oilChecking chain lubrication Lubricating the clutch drum bearingChecking wear on cutting equipment Lubricating the bar tip sprocketHOW to Avoid Kickback What is kickback?Never use the saw one- handed General rulesDo not let go of the handles Min m 10 ftProlonged inhalation of exhaust gases from Engine, chain lubrication oil mist and/orBasic safety rules General Working InstructionsBasic cutting technique GeneralTerms CuttingTree felling technique Safe distanceLimbing Felling directionClearing the trunk and preparing your retreat FellingGeneral advice Freeing a tree that has fallen badly = high accident riskCutting the trunk into logs Freeing a Trapped treeWhat is WHAT? What is what?Fitting a spike bumper AssemblyMounting guide bar and chain Chain oil Fuel HandlingFuelmix Fuelling Start and Stop Start and stopMaintenance CarburettorStarter device assembly Starter deviceChanging a broken or worn starter cord Tensioning the recoil springNeedle bearing maintenance Air filterSilencer Spark plugWinter use Temperature -5C or colderCooling system Weekly maintenance Daily maintenance Monthly maintenanceBar and chain combinations Technical Data625 630 670 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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