Jonsered 630, 625, 670 manual Chain brake and front hand guard

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SAFETY INSTRUCTIONS

1 Chain brake and front hand guard

YOUR chain saw is equipped with a chain brake that is desig- ned to stop the chain immediately if you get a kickback.

The chain brake reduces the risk of accidents, but only You can prevent them.

Take care when using your saw and make sure the kickback zone of the bar never touches any object.

2

The front hand guard is

 

not designed solely to

 

activate the chain brake.

 

Another important safety

 

feature is that it prevents

 

the chain from hitting your

 

left hand if you lose your

 

grip on the front handle.

3

You can also use the

1The chain brake (A) can either be activated manually (by your left hand) or automatically by the inertia release mechanism (a free- swinging pendulum). On most of our models the front hand guard acts as a counterweight in case of kickback.

The brake is applied when the front hand guard (B) is pushed forwards.

This movement activates

aspring-loaded mechanism that tightens the Brake Band (C) around the engine drive system (D) (Clutch Drum).

B

A

B

B

C

D

chain brake as a

temporary brake when you

change position or if you

put the saw down for a

short time. You should

also apply the chain brake

manually if there is a risk

of the chain accidentally

hitting anyone or anything

close by.

4To release the chain brake pull the front hand guard backwards, towards the front handle.

5As mentioned in section A, kickback can be very sudden and violent.

Most kickbacks are minor and do not always activate the chain brake. If this happens you should hold the chain saw firmly and not let go.

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Contents Operator´s manual Symbols in the operator’s manual KEY to SymbolsSymbols on the chain saw Contents Personal Protective Equipment Safety InstructionsChain brake and front hand guard Right hand guard Throttle lockChain catcher Muffler Stop switchVibration damping system Checking the front hand guard Checking brake band wearChecking the automatic brake 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 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 Chain oil Lubricating cutting equipmentFilling with chain oil Never use waste oilLubricating the clutch drum bearing Checking chain lubricationChecking wear on cutting equipment Lubricating the bar tip sprocketWhat is kickback? HOW to Avoid KickbackNever use the saw one- handed General rulesDo not let go of the handles 10 ft Min mProlonged inhalation of exhaust gases from Engine, chain lubrication oil mist and/orGeneral Working Instructions Basic safety rulesGeneral Basic cutting techniqueTerms CuttingSafe distance Tree felling techniqueLimbing Felling directionFelling Clearing the trunk and preparing your retreatFreeing a tree that has fallen badly = high accident risk General adviceCutting 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 StopCarburettor MaintenanceStarter device Starter device assemblyChanging a broken or worn starter cord Tensioning the recoil springAir filter Needle bearing maintenanceSilencer Spark plugWinter use Temperature -5C or colderCooling system Monthly maintenance Weekly maintenance Daily 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.