Jonsered 2050, 2045 manual Chain brake and front hand guard

Page 5

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

chain brake as a

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

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.

English – 5

Image 5

Contents Operator´s manual EPA Symbols KEY to SymbolsContents 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 mGeneral 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?Mounting guide bar and chain AssemblyChain oil Fuel HandlingFuelmix Fuelling Start and stop Start and StopStart StopCarburetor MaintenanceStarter device Starter device assemblyChanging a broken or worn starter cord Tensioning the recoil springAir filter Needle bearing maintenanceMuffler Spark plugCooling system Centrifugal cleaning TurboDaily maintenance Weekly maintenance Monthly maintenance 2045 2050 Technical DataYour Warranty Rights Obligations Federal Emission Control Warranty Statement1998W48 108 87