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Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement

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  1. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Turn off the chainsaw: crwdns2935265:01crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Turn off the chainsaw: crwdns2935265:01crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Make sure you have the ignition switch turned off before starting your repair.

    • The chainsaw should be cool to the touch before continuing.

  2. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Loosen the air filter cover: crwdns2935265:02crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Loosen the air filter cover: crwdns2935265:02crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Use your fingers to loosen the air filter cover knob.

  3. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement: crwdns2935265:03crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement: crwdns2935265:03crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement: crwdns2935265:03crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Remove the air filter cover.

  4. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Disconnect the spark plug: crwdns2935265:04crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Disconnect the spark plug: crwdns2935265:04crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Disconnect the spark plug: crwdns2935265:04crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Use your fingers to pull up and disconnect the spark plug boot.

  5. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Remove the air filter: crwdns2935265:05crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Remove the air filter: crwdns2935265:05crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Remove the air filter: crwdns2935265:05crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • To minimize debris entering the intake, pull the choke shut before continuing.

    • Remove the air filter

    • During reassembly, clean the air filter with compressed air or with light brushing before reinstalling it.

  6. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Unfasten the front handle: crwdns2935265:06crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Unfasten the front handle: crwdns2935265:06crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Use a T25 Torx screwdriver to remove the five screws securing the front handle to the bottom and right side of the device:

    • Four 24 mm-long screws

    • One 25 mm-long screw

  7. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Remove the front handle: crwdns2935265:07crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Remove the front handle: crwdns2935265:07crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Remove the front handle: crwdns2935265:07crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Pull the handle toward the rear of the device to remove it.

  8. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Remove the sprocket guard: crwdns2935265:08crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Remove the sprocket guard: crwdns2935265:08crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Use a 13 mm wrench to remove the two nuts securing the sprocket guard.

  9. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement: crwdns2935265:09crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement: crwdns2935265:09crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement: crwdns2935265:09crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Remove the sprocket guard.

  10. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Remove the guide bar: crwdns2935265:010crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Remove the guide bar: crwdns2935265:010crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Remove the guide bar: crwdns2935265:010crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Push the guide bar towards the back of the device to create slack in the saw chain.

    • Pull the guide bar away from the device to separate the saw chain from the clutch drum.

    • Remove the guide bar.

  11. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Unfasten the front hand guard: crwdns2935265:011crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Unfasten the front hand guard: crwdns2935265:011crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Make sure the front hand guard is in the unlocked position before continuing.

    • Use a T25 Torx screwdriver to remove the two 20 mm screws securing the front hand guard.

  12. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Remove the front hand guard: crwdns2935265:012crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Remove the front hand guard: crwdns2935265:012crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Pull the front hand guard toward the rear of the device to remove it.

  13. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Unfasten the engine cover: crwdns2935265:013crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Unfasten the engine cover: crwdns2935265:013crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Use a T25 Torx screwdriver to remove the three 20 mm screws securing the engine cover.

  14. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Remove the engine cover: crwdns2935265:014crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Remove the engine cover: crwdns2935265:014crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Remove the engine cover: crwdns2935265:014crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Pull the engine cover straight off the device to remove it.

  15. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Unfasten the starter case: crwdns2935265:015crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Unfasten the starter case: crwdns2935265:015crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Use a T25 Torx screwdriver to remove the four 24 mm screws securing the starter case.

  16. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement: crwdns2935265:016crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement: crwdns2935265:016crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement: crwdns2935265:016crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Remove the starter case.

  17. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Reposition the spark plug cable: crwdns2935265:017crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Reposition the spark plug cable: crwdns2935265:017crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Reposition the spark plug cable: crwdns2935265:017crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Use your fingers to reroute the spark plug cable from its slot in the fan cover.

  18. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Reposition the ignition coil cable: crwdns2935265:018crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Reposition the ignition coil cable: crwdns2935265:018crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Reposition the ignition coil cable: crwdns2935265:018crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Use your fingers to reroute the ignition coil cable from its slot in the fan cover.

  19. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Disconnect the ignition coil: crwdns2935265:019crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Disconnect the ignition coil: crwdns2935265:019crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Use pliers, or your fingers, to disconnect the ignition coil cable's spade connector.

    • Grip the connector by the base of the clear head and not the wire itself.

  20. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Unfasten the ignition coil: crwdns2935265:020crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Unfasten the ignition coil: crwdns2935265:020crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Use a T25 Torx screwdriver to remove the two 20 mm screws securing the ignition coil.

    • During reassembly, insert the ignition air gap gauge to ensure a 0.35 mm space between the coil and the magnet.

  21. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Remove the ignition coil: crwdns2935265:021crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Remove the ignition coil: crwdns2935265:021crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Remove the ignition coil.

  22. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Disconnecting the cap from the coil: crwdns2935265:022crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Disconnecting the cap from the coil: crwdns2935265:022crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • When disconnecting the ignition coil from the spark plug cap, it is recommended to add dish soap to the cap. This should allow you to easily pull the ignition coil and terminal out of the cap. This can be done by hand, use pliers if needed.

    • The ignition coil may tear when attempting to remove the terminal. This will cause the terminal to remain in the boot/cap. Use pliers to remove this.

  23. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Remove the terminal: crwdns2935265:023crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Remove terminal from the ignition coil.

  24. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Replace terminal: crwdns2935265:024crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Replace the ignition coil tubing if needed at this step.

    • Gently squeeze the pointed end of the terminal into the end of the ignition coil using a pair of pliers.

  25. Echo Chain Saw CS590 2019 Spark Plug Terminal Replacement, Reinsert the terminal/coil: crwdns2935265:025crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Slide the ignition coil/terminal connection back in to the spark plug cap/boot. Add a drop or two of dish soap to the small opening on the spark plug cap/boot to make this easier.

    • Hold your connection together as best you can while reinserting. I let mine disconnect almost 3 times before this photo.

    • Clean any residual dish soap from the spark plug cap/boot before connecting it to the spark plug.

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Alicia H.

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