Makita EA7900P Operator's And Safety Manual

Also see for EA7300P: Instruction manual Operator's and safety manual

6General Safety PrecautionsThe use of any chain saw may be hazardous. At full throttlechain speed can reach 45 mph (20 m/s). It is importantthat you read; fully understand and observe the followingsafety precautions and warnings. Read the Operator’smanual and the safety instructions periodically.WARNING!Reactive forces, including kickback, can be dangerous.Careless or improper use of any chain saw may causeserious or fatal injury.Have your MAKITA dealer show you how to operateyour chain saw. Observe all applicable local safetyregulations, standards and ordinances.1WARNING!Prolonged use of chain saws exposing the operatorto vibrations may produce Whitefinger disease (Ray-naud’s phenomenon). This phenomenon reducesthe hand’s ability to feel and regulate temperature,produces numbness and burning sensations andmay cause nerve and circulation damage and tissuenecrosis.All MAKITA saws are therefore provided with an an-tivibration system which is essential for those usingchain saws on a regular or sustained basis. Antivi-bration systems do not guarantee that you will notsustain Whitefinger disesase, however, they reducethis danger considerably. Nevertheless, continual andregular users should observe their hands and fingersand in case of any abnormal symptoms, seek medicaladvice immediately.2The operatorPhysical ConditionYou must be in good physical condition and mentalhealth and not under the influence of any substance(drugs, alcohol), which might impair vision, dexterityor judgment.Discription of symbols used on chainsaws:CSA Standards Z62.1-15Class 1A Z62.3-11ANSI Standard B175.1-2012WARNING!Minors should never be allowed to use a chainsaw.Bystanders, especially children and animals shouldnot be allowed in the area where a chain saw is inuse (fig. 1).Never let the saw run unattended.Store it in a locked place away from children. Emptythe fuel and oil tank (see storing the saw).Do not lend your chain saw without this Operator’sand Safety Manual. Be sure that anyone using yoursaw understands the information given.Proper use of a chain saw involves1. the operator2. the saw3. the use of the saw.Maximum Computed Kickback Angle CKAwb* with usingthe chain brake when using the recommended bar andchain combinations. In this example the CKA is 38°.Always use two hands when op-erating the chain saw!* The Computed Kickback Angle is a calculated value fromenergies measured on a test bench.It is not the angle ofthe guide bar moved upward in case of a KICKBACK.Reduced Kickback Bar andChain combination that has beenevaluated with the power headto achieve kickback protection(according to ANSI and CSAstandards).XXX.YYY.ZZZXXX.YYY.ZZZContact of the guide bar tip withany object should be avoided!Tip contact may cause the guidebar to move suddenly upwardand backward, which may causeserious injury!Maximum Computed Kickback AngleCKAwob* without using the chain brakewhen using the recommended bar and chaincombinations. In this example the CKA is 82°.max. 82O CKAwob,38O CKAwb