Jonsered 2149 manual Chain brake and front hand guard, Safety Instructions

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1 Chain brake and front hand guard

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.

3You can also use the 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.

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

B

A

B

C

D

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.

2The 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.

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Contents Operator´s manual Symbols KEY TO SYMBOLSContents CONTENTSBefore using a new saw Safety instructionsPERSONAL PROTECTIVE EQUIPMENT SAFETY INSTRUCTIONSCHAIN SAW SAFETY EQUIPMENT 1 Chain brake and front hand guard 4 Right hand guard 2 Throttle lock3 Chain catcher 7 Muffler 6 Stop switch5 Vibration damping system 2 Checking the front hand guard 1Checking brake band wear3 Checking the inertia brake release 4Checking the brake trigger6 Stop switch The 5 basic rules CUTTING EQUIPMENTA Bar 1Cutting equipment designed to minimise kickbackB Saw chain C Some terms that describe the bar and chainB Sharpening cutting teeth AGeneral information on sharpening cutting teeth3 Tensioning the chain C General advice on setting raker clearanceDSetting the raker clearance BFilling with chain oil 4 Lubricating cutting equipmentA Chain oil C Checking chain lubrication E Needle bearing maintenanceFChecking wear on cutting equipment D Lubricating the bar tip sprocketH Bar HOW TO AVOID KICKBACKWhat is kickback? Never use the saw one- handed General rulesDo not let go of the handles ”Technical data” section GENERAL SAFETY PRECAUTIONS”Maintenance” Min. 3 mGENERAL WORKING INSTRUCTIONS 1 Basic safety rulesGeneral 2 Basic cutting techniqueTerms CuttingA Safe distance 3 Tree felling techniqueLimbing B Felling directionD Felling C Clearing the trunk and preparing your retreatDIRECTIONAL CUT FELLING CUTAFreeing a “Trapped tree” E LimbingF Cutting the trunk into logs What is what? WHAT IS WHAT?Mounting guide bar and chain ASSEMBLYFuelmix FUEL HANDLINGGasoline Two-strokeoilChain oil FuellingMin 3 m 10ftStart and stop START AND STOPStart StopFunctioning, Basic setting, Final setting MAINTENANCEBasic setting and running in Fine adjustmentStarter device Starter device assemblyChanging a broken or worn starter cord Tensioning the recoil springAir filter Needle bearing maintenanceMuffler Spark plugCentrifugal cleaning ”Turbo” Adjustment of the oil pumpHeated handles 2149W Cooling systemMonthly maintenance Weekly maintenanceDaily maintenance Weight TECHNICAL DATA34´*xnG¶5g¨ 2149MANUFACTURER’S WARRANTY COVERAGE EMISSION CONTROL WARRANTY STATEMENTOWNER’S WARRANTY RESPONSIBILITIES WARRANTY COMMENCEMENT DATE2000W51 ´*xnG¶5g¨108