Rules for Safe Operation

WARNING
KICKBACK may occur when the nose or tip of the guide bar touches an object, or when the wood closes in and pinches the saw chain in the cut. Tip contact in some cases may cause a lightning fast reverse REACTION, kicking the guide bar up and back towards the operator. Inching the saw chain along the top of the guide bar may push the guide bar rapidly back towards the operator. Either of these reactions could result in serious personal injury by causing you to lose control of the saw. DO NOT rely exclusively upon the safety devices built into your saw. As a chain saw user, you should take several steps to keep your cutting jobs free from accident or injury.

1. With a basic understanding of kickback, you can reduce or eliminate the element of surprise. Sudden surprise contributes to accidents.
2. Keep a good firm grip on the saw with both hands, the right hand on the rear handle, and the left hand on the front handle, when the engine is running. Use a firm grip with thumbs and fingers encircling the chain saw handles. A firm grip will help you reduce kickback and maintain control of the saw. Don't let go.
3. Make sure that the area in which you are cutting is free from obstructions. Do not let the nose of the guide bar contact a log, branch or any other obstruction which could be hit while you are operating the saw.
4. Cut at high engine speeds.
5. Do not over reach or cut above shoulder height.
6. Follow manufacturer's sharpening and maintenance instructions for the saw chain.
7. Use only replacement bars and chains specified by the manufacturer, or the equivalents of these bars and chains.

1. Do not operate a chain saw when you are fatigued.
2. Use safety footwear, snug-fitting clothing and protective gloves. Wear eye, hearing, and head protection devices.
3. Use caution when handling fuel. Move the chain saw at least 10 feet from the fueling point before starting the engine.
4. Do not allow other persons to be near the chain saw when you are starting or cutting with the chain saw. Keep bystanders and animals out of the work area.
5. Do not start cutting until you have a clear work area, secure footing, and a planned retreat path from falling debris.
6. Keep all parts of your body away from the saw chain when the engine is running.
7. Before you start the engine, make sure that the saw chain is not contacting anything.
8. Carry the chain saw with the engine stopped, the guide bar and saw chain to the rear, and the muffler away from your body.
9. Do not operate a chain saw that is damaged, improperly adjusted, or not completely and securely assembled. Be sure that the saw chain stops moving when the throttle control trigger is released.
10. Shut off the engine before setting the chain saw down.
11. Use extreme caution when cutting small size brush and saplings because slender material may catch the saw chain and be whipped toward you or pull you off balance.
12. When cutting something under tension, be alert for spring back so that you will not be struck when the tension is released.
13. Keep the handles dry, clean, and free of oil or fuel mixture.
14. Operate the chain saw only in well ventilated areas.
15. Do not operate a chain saw in a tree unless you have been specifically trained to do so.
16. When transporting your chain saw, use the appropriate guide bar scabbard.
17. Spark arrester mufflers are standard on ECHO chain saws to reduce the possibility of fires. Do not remove the spark arrester screen.

Operations-Safe Starting Techniques

1. Know how to stop: keep hold of the rear handle, but release trigger and flick the switch to "STOP"
2. Hold the saw down securely on a flat surface with bar and chain in the clear. After setting the controls, hold the top of the front handle with your left hand. Slide the toe of your right boot through the rear handle to held down the rear of the system. Grasp the starter handle with your right hand.

CAUTION
Do not wrap starter rope around your hand or wrist (in case of engine back fire). Pull the handle to crank engine.

STARTING ENGINE (COLD START)

CAUTION
Always cold start engine and allow it to warm up before moving it to cutting area.

1. Turn ignition switch START position.
2. Pull choke knob all the way out.
3. Depress lockout lever and squeeze throttle trigger fully.
4. Push trigger latch in and release throttle trigger.
5. Pull starter rope until engine fires.
6. Squeeze throttle trigger to release trigger latch
7. Push choke halfway in.
8. Pull starter handle to start engine.
9. Squeeze throttle trigger to keep engine running.
10. Push choke knob all the way in as engine warms up.

1. Allow engine to idle for 2 minutes.
2. Turn ignition switch to off.

TRANSPORTING SYSTEM

1. Transport system to cutting area with blade to rear.

STARTING ENGINE (WARM START)

1. Hold system firmly, gripping front handle with hand and placing foot through rear handle.
2. Turn ignition switch to on.
3. Pull starter handle until engine starts.

SAFE OPERATION TIPS

1. Follow all fire department procedures on safe ventilation techniques and on avoidance of cutting near gas and electric services.
2. Keep both hands on handles when engine is running.
3. Always operate the saw at full throttle when making a cut.
4. Always bury the tip of the cutting bar in the cutting surface.
5. Make sure the skid plate is in contact with cutting surface.
6. Avoid cutting above shoulder height and over reaching.

1. Boring - ventilation and breaching uses "plunge cutting" which entails boring into a structure. There is always a chance of kickback even when the plunge cut is expertly done. Keep the skid plate touching the surface. Grasp both handles firmly and bring the saw to full throttle. Using a steady pressure, rock the tip of the saw into the surface using the skid plate as a pivot point between the system and the surface. Keeping the weight of the system against the surface with a firm grip will increase operator comfort and control during this dangerous operation.
2. Cutting - after penetration, follow the contour of the skid plate until the bar has reached the approximate angle illustrated at the right. Position the skid plate on the flat surface, maintaining full throttle and steady pressure while keeping the saw on the surface. Pull the saw back, ripping through the surface. Avoid cutting through joists and rafters.

CLEAN ENTIRE SYSTEM (after each use)

1. Clean bar and chain with a 50-50 mixture of kerosene and machine oil.
2. Remove the guide bar and clean the clutch and brake mechanism with a 50-50 mixture of kerosene and machine oil.
3. Clean the exterior of the saw with a non-flammable solvent.

1. Make sure all fasteners on the saw are tight.
2. Replace those found to be faulty.

1. Close choke.
2. Loosen thumb bolt and remove air filter cover.
3. Remove any loose particles from area.
4. Remove air filter. Note: If air filter is excessively dirty, or no longer fits properly, replace it.
5. Carefully brush dirt from filter or clean with a non-flammable solvent if necessary. Note: Allow all parts to air dry.
6. Install air filter.
7. Install air filter cover and tighten thumb bolt.

1. Contact maintenance division (sharpen as needed)

1. Loosen nuts just enough to allow guide bar to slide when tension screw is turned.
2. Turn tension screw clockwise to take up chain slack.
3. Hold the nose of the bar up with your gloved hand.
4. Gradually turn tension screw clockwise until the drive links are drawn up into the bar.
5. Pull chain along bar with your gloved hand to check for binding.
6. Back off tension screw if necessary
7. Tighten nuts while holding bar in position.

1. Remove the guide bar cover.
2. Remove the bar and chain.
3. Remove the guide bar plate and cartridge from the guide bar cover.
4. Inspect clutch drum and brake band for wear and replace if necessary.
5. Turn the tension screw clockwise to increase tension or counterclockwise to decrease tension.
6. Reinstall the cartridge and guide bar plate in the guide bar cover.
7. Install guide bar cover.
8. Reinstall bar and chain
9. Set chain tension. (See adjust chain tension in this section).
10. Activate the chain brake with the guard and with a gloved hand try to pull the chain along the top of the guide bar.
    WHAT HAPPENED?
    Chain Moves

    WHAT DO YOU DO?
    Increase tension

    WHAT HAPPENED?
    Chain does not move

    WHAT DO YOU DO?
    Go to next step

11. Move with hand guard in un-braked position.
    WHAT HAPPENED?
    Brake spring rubs on drum

    WHAT DO YOU DO?
    Decrease tension and go to next step

    WHAT HAPPENED?
    Chain rotates smoothly without drag

    WHAT DO YOU DO?
    Go to next step

12. Start the engine
13. Depress throttle fully and activate the brake.
    WHAT HAPPENED?
    Chain slows to a stop

    WHAT DO YOU DO?
    Increase tension

    WHAT HAPPENED?
    Brake spring rubs on drum

    WHAT DO YOU DO?
    Decrease tension

    WHAT HAPPENED?
    Chain stops immediately

    WHAT DO YOU DO?
    Brake is adjusted properly

REFILL FUEL TANK (after each use)
Note: Use a mixture of 50 parts leaded or unleaded regular grade gasoline (min. Octane 87) and one part 50:1, Echo 2-stroke oil. Add a fuel stabilizer to mixture.

1. Remove fuel tank cap.
2. Pour fuel/oil mixture into fuel tank.
3. Install fuel cap and wipe up any spilled fuel.

1. Start the engine and make practice cut in a piece of 3/4 inch thick plywood. Make cuts using the ventilating procedure outlined in this manual.
2. Replace faulty parts and make necessary adjustments. Note: For assistance in diagnosing problems, consult the troubleshooting section in this manual.

Use a mixture of 50 parts leaded or unleaded regular grade gasoline (min. Octane 87) and one part 50:1, Echo 2-stroke oil. Note: Do not use gasohol or alcohol blended fuels in this engine. Note: Use of non-recommended oils or failure to follow mixing instructions voids the warranty. Note: Do not mix fuel in engine fuel tanks.

1. Pour ½ of the gasoline into a safe approved container.
2. Add oil to gas and mix thoroughly.
3. Add remaining gasoline and re-mix thoroughly.
4. Add gas stabilizer to fuel/oil mixture.
5. Install container cap and wipe up any spilled fuel from container and area.

• The quikvent system should be used only with special Echo detergent bar and chain oil. Refer to page 26 for accessory part number.
• When refilling fuel mixture, fill up chain oil at the same time.

1. Check plug gap.
   Note: proper gap is 0.6 - 0.7 mm (0.24 - 0.028 in.).
2. Inspect electrode for wear.
3. Inspect insulator for oil or other deposits.
4. Replace plug if needed and torque to 145 - 155 kg-cm (125 - 135 in. Lb.).

1. Inspect spark arresters screen for holes or warpage.
2. Inspect muffler body, studs and screws.
3. Replace damaged parts.

REPLACE FUEL FILTER (when needed)

1. Contact maintenance division.

1. Contact maintenance division.

GENERAL INFORMATION
Contact maintenance division.

• The idle speed adjustment screw controls the throttle opening at idle position.
• The low speed adjustment screw controls the volume of fuel/oil mixture at low engine speed. It also controls the supplementary fuel required to obtain smooth progression from idling to high speed.
• The high speed screw controls the volume of fuel/air mixture at full throttle.

1. Turn HI and LO screws clockwise until seated lightly in carburetor body.
2. Turn the LO screw counterclockwise one and one half turns.
3. Start engine and allow it to run at high idle until warm.
   Note: Idle speed screw may have to be readjusted to keep engine from stalling.

1. Turn the HI screw counterclockwise one and one half turns.
   CAUTION
   Do not run the engine at full throttle longer than 5 - 6 seconds to avoid damage to engine.
2. While running the engine at full throttle, turn the HI screw slowly clockwise until the engine runs smoothly without four stroking under no load.
3. Turn the HI screw counterclockwise one eighth to one quarter turn to obtain optimum fuel for full power under load conditions.
   Note: Under no-load conditions, the engine should four stroke slightly.

1. Remove air filter assembly.
2. Carefully remove housing and clean dirt and dust from fins.
3. Reinstall housing.
   Note: Be sure to fit the carburetor seal snugly around hole in housing.
4. Install air filter assembly.

1. Contact maintenance division.

• PULL - when you are cutting along the bottom rails of the bar where the chain is moving toward you, the chain saw will be pulled into the wood.
• PUSH - cutting along the top rails of the bar pushes the chain saw toward you, as in under bucking.
• ROTATIONAL KICKBACK - when the chain is moving downward around the upper nose of the bar, solid contact there may dangerously drive the bar tip upward in an arc toward you. This is the extremely dangerous reaction called rotational kickback. When used alone, the term kickback most always refers to the rotational kind.
• LINEAR KICKBACK - describes a sudden push reaction occurring when the saw is buried in a cut which closes and pinches the chain along the top rails of the bar. The kick guard device on your bar nose acts as a stop against linear kickback.
• FORCE OF GRAVITY - it must be dealt with in chain sawing. Maintain proper grip and stance. Keep good footing. Don't cut off balance; gravity may work against you. Never reach too far out with the saw. Make no cuts above chest height where control is difficult. When bucking occurs, be ready to throttle back and hold up the saw tip so that the saw will not follow through into your leg or foot after breaking into the clear.