17CS-310OPERATIONwarningMoving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away fromall openings. Always stop engine, disconnect spark plug, and make sure all moving parts have come to a com-plete stop before removing obstructions, clearing debris, or servicing unit.warningEngine exhaust IS HOT, and contains Carbon Monoxide (CO), a poison gas. Breathing CO can cause uncon-sciousness, serious injury, or death. Exhaust can cause serious burns. ALWAYS position unit so that exhaust isdirected away from your face and body.warningOperation of this equipment may create sparks that can start fires. This unit is equipped with a spark arrestor toprevent discharge of hot particles from the engine. Metal blade use also can create sparks if the blade strikesrocks, metal, or other hard objects. Contact local fire authorities for laws or regulations regarding fire preventionrequirements.Start / RunIgnitionswitchChain brakeChokeChoke control knobPurge pumpWHEN THE ENGINE IS COLDCAUTIONMake sure the bar and chain are free from anyobstruction when starting the chain saw.• Move chain brake lever fully forward to lock chainbrake before starting.• Fill the fuel tank with fuel mixture. Do not over fill.• Fill the chain oil tank with lubricant. Do not over fill.• Move ignition switch to “RUN” position.• Push purge pump 3 to 4 times or until fuel is visible inpurge pump.• Pull choke control knob all the way out. (Choke posi-tion)nOTEDo not pull starter rope out to the maximum possibleposition.Do not allow recoil handle to snap back against thecasing.warning• After choke control knob is pulled and then knob isreturned to original position, throttle remains slightlyopen (fast idle latch condition).• The chain will attempt to move when engine isstarted with fast idle throttle latch engaged.• Do not start engine before chain brake is locked.