Husqvarna 445, 445e, 450e manual Working Techniques, Limbing WARNING! A majority of kickback

Page 30

Limbing

WORKING TECHNIQUES

Kickback always occurs in the cutting plane of the bar. Normally the chain saw and bar are thrown backwards and upwards towards the user. However, the chain saw may move in a different direction depending on the way it was being used when the kickback zone of the bar touched the object.

Kickback only occurs if the kickback zone of the bar touches an object.

Limbing

WARNING! A majority of kickback

! accidents occur during limbing. Do not use the kickback zone of the guide bar. Be extremely cautious and avoid contacting the log, other limbs or objects with the nose of the guide bar. Be extremely cautious of limbs under tension. They can spring back toward you and cause loss of control resulting in injury.

Make sure that you can stand and move about safely. Work on the left side of the trunk. Work as close as possible to the chain saw for maximum control. If possible, let the weight of the chain saw rest on the trunk.

Keep the trunk between you and the chain saw as you move along the trunk.

Cutting the trunk into logs

See instructions under the heading Basic cutting technique.

30 – English

115 10 81-26 Rev.2 2008-01-11

Image 30

Contents Operator′s manual 445 445e 450eKEY TO SYMBOLS Symbols on the machineSymbols in the operator’s manual CONTENTS ContentsINTRODUCTION Dear CustomerWHAT IS WHAT? What is what on the chain saw?GENERAL SAFETY PRECAUTIONS Before using a new chain sawPersonal protective equipment Machine′s safety equipmentAlways use common sense Chain brake and front hand guard8 – English Throttle lockout Vibration damping system Stop switchRight hand guard MufﬂerCutting equipment General rulesCutting equipment designed to reduce kickback sharpening instructions considerably General information on sharpening cutting teethWARNING! Departure from the increases the risk of kickbackAdjustment of depth gauge setting General advice on adjusting depth gauge settingincreased if the depth gauge setting is Tensioning the chain445e, 450e Chain oil Lubricating cutting equipmentwhich could lead to serious, even fatal injuries Filling with chain oilChain drive sprocket ASSEMBLY Fitting the bar and chainFitting a spike bumper FUEL HANDLING FuelTransport and storage Fuel safetyFuelling Long-termstorageSTARTING AND STOPPING Starting and stoppingStopping WORKING TECHNIQUES Before useGeneral working instructions 24 – English Basic cutting technique 12 3 Tree felling techniqueFelling Felling directionClearing the trunk and preparing your retreat Directional cutsFelling cut How to avoid kickback What is kickback?Freeing a tree that has fallen badly Limbing WARNING! A majority of kickback MAINTENANCE Carburettor adjustmentGeneral Checking the inertia brake release Checking the brake triggerimmediately Mufﬂer Starter Replacing the starter cordTensioning the recoil spring Air ﬁlter Replacing the return and drive springsFitting the starter Needle bearing lubrication Spark plugLubricating the bar tip sprocket Cooling system”Air Injection” centrifugal cleaning Winter useTemperature -5Cor colder Weekly maintenance Maintenance scheduleDaily maintenance Monthly maintenanceTECHNICAL DATA Technical dataLength, inch Bar and chain combinationsSaw chain ﬁling and ﬁle gauges Pitch, inchEC-declarationof conformity Applies to Europe only´z+S,¶6c¨ ´z+S,¶6c¨ Page 1151081-26 ´z+S,¶6c¨ ´z+S,¶6c¨