CS-310 OPERATION© 11/2014 ECHO Inc.X7503274200 216. Pull choke control knob all the way OUT (CLOSED [ ]choke position).• After choke control knob is pulled and then knob isreturned to original position, throttle remains slightly open(fast idle latch condition).• The chain will attempt to move when engine is started withfast idle throttle latch engaged.• Do not start engine before chain brake is locked.7. Securely hold the chain saw and pull starter handle severaltimes until first starting sound.8. Push choke control knob all the way IN (OPEN chokeposition).9. Pull starter handle to start the engine.Note: Do not pull starter rope out to the maximum possibleposition.Do not allow recoil handle to snap back against thecasing.• After starting the engine, immediately squeeze and then release throttle trigger to release fast idlethrottle latch, otherwise severe brake damage may occur.• Never use fast idle throttle latch for cutting.• Use the fast idle throttle latch only in starting.Note: If engine does not start after 5 pulls, repeat instructions.Note: Do not increase engine speed while chain brake is locked.Severe brake damage will result.Starting Warm EngineMake sure the bar and chain are free from any obstructionwhen starting the chain saw.1. Move chain brake lever fully FORWARD to LOCK chain brakebefore starting.2. Confirm there is fuel and chain oil in the tanks.3. Move ignition switch UP to “RUN” position.BChain brake