Jonsered 50C, 70C manual Assembly, Fitting the bar and chain

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ASSEMBLY

Fitting the bar and chain

WARNING! Always wear gloves, when

!working with the chain, in order to protect your hands from injury.

Check that the chain brake is in disengaged position by moving the front hand guard towards the front handle.

Remove the bar nuts and remove the clutch cover (chain brake). Take off the transportation ring (A).

Fit the bar over the bar bolts. Place the bar in its rearmost position. Place the chain over the drive sprocket locate it in the groove on the bar. Begin on the top edge of the bar.

Make sure that the edges of the cutting links are facing forward on the top edge of the bar.

Fit the clutch cover and locate the chain adjuster pin in the hole in the bar. Check that the drive links of the chain fit correctly over the drive sprocket and that the chain is correctly located in the groove in the bar. Tighten the bar nuts finger tight.

Tension the chain by turning the chain tensioning screw clockwise using the combination spanner. The chain should be tensioned until it does not sag from the underside of the bar.

The chain is correctly tensioned when it does not sag from the underside of the bar, but can still be turned easily by hand. Hold up the bar tip and tighten the bar nuts with the combination spanner.

When fitting a new chain, the chain tension has to be checked frequently until the chain is run-in. Check the chain tension regularly. A correctly tensioned chain ensures good cutting performance and long life.

Note: If clutch cover is difficult to remove, replace bar nuts, engage brake and rerelease (an audible click will be heard if released properly).

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Contents Operator’s manual EPA Key to symbols KEY to SymbolsContents EPA Machine′s safety equipment Safety InstructionsPersonal protective equipment Chain brake and front hand guard Throttle lock Stop switchChain catcher Right hand guardChecking brake band wear MufflerChecking the front hand guard Checking the inertia brake releaseThrottle lock Stop switchChain catcher Right hand guardGeneral rules Cutting equipmentCutting equipment designed to minimise kickback MufflerChain Sharpening your chain and adjusting raker clearanceSome terms that describe the bar and chain General information on sharpening cutting teethSharpening cutting teeth General advice on setting raker clearanceTensioning the chain Setting the raker clearanceIf the raker clearance is too large Cause serious or even fatal injuryLubricating cutting equipment What is kickback? How to avoid kickbackChecking wear on cutting equipment Chain drive sprocketDo not let go of the handles Starting General safety precautionsBasic safety rules Fuel safetyGeneral working instructions Transport and storageGeneral Basic cutting techniqueTerms Limbing CuttingSafe distance Tree felling techniqueFelling direction Clearing the trunk and preparing your retreatFelling cut Freeing a tree that has fallen badly General adviceCutting the trunk into logs Freeing a trapped treeWhat is what on the chain saw? What is WHAT?Fitting the bar and chain AssemblyFuel Fuel HandlingChain oil Fuelling Starting and stopping Starting and StoppingCold engine Warm engineStopping Carburettor MaintenanceStarter Correctly adjusted carburettorChanging a broken or worn starter cord Tensioning the recoil springSpark plug Air filterMuffler Fitting the starterCentrifugal cleaning Turbo Adjustment of the oil pumpWhen making adjustments Needle bearing lubricationElectrical carburettor heating Heated handlesWinter use CanadaMonthly maintenance Daily maintenance Weekly maintenanceBelow you will find some general maintenance instructions Technical data Technical DataCS 2171/WH Length, inches Pitch, inch Max nose radius Bar Chain050/1,3 mm 058/1,5mmYour Warranty Rights and Obligations Federal Emission Control Warranty StatementPage 1088917-95

50C, 70C specifications

The Jonsered 70C and 50C chainsaws represent a pinnacle of craftsmanship and engineering excellence in the world of power tools. Designed for both professional and avid DIY enthusiasts, these models offer a blend of power, performance, and user-friendly features that elevate the cutting experience.

At the heart of both the Jonsered 70C and 50C is their powerful engine output. The 70C boasts a robust 70cc engine, delivering high torque and efficiency for demanding tasks, while the 50C is equipped with a nimble 50cc engine, perfect for lighter, more agile cutting projects. This versatility makes the chainsaws suitable for a wide range of activities, from felling trees to limbing and pruning, ensuring that they cater to varying user requirements.

One notable feature of the Jonsered 70C and 50C is their advanced air filtration systems. These systems are designed to enhance the longevity of the chainsaw's engine by preventing dust and debris from entering the combustion area. This means less maintenance and more time spent operating the chainsaw, making it an ideal choice for both professional lumberjacks and casual users.

Ergonomically designed, the handle of both models offers excellent grip and comfort, reducing user fatigue during extended use. The lightweight construction of the saws enables effortless maneuverability and control, allowing users to execute precise cuts without strain. Additionally, the quick and easy chain tensioning system facilitates fast adjustments, ensuring that the chain remains in optimal condition for continuous cutting.

Safety features are paramount in the design of the Jonsered 70C and 50C. Each model incorporates a chain brake and throttle lock to enhance user safety while operating, minimizing risks associated with kickback and accidental starts. The designs also emphasize low vibration, which further protects the user's hands and arms from fatigue, promoting a safer and more enjoyable cutting experience.

With their blend of power, efficiency, and advanced technology, the Jonsered 70C and 50C chainsaws are exceptional tools for anyone seeking reliability and performance in the field. Whether for professional logging or home landscaping, these chainsaws embody the quality and innovation expected from the Jonsered brand.
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