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Echo Chain Saw CS590 2019 Woodruff Key Replacement

Introdução

Use this guide to replace the woodruff key in your Echo Chain Saw CS-590 (2019).

Although it's not necessary to remove the guide bar, it's highly recommended you do so to minimize any damage to the chain and to yourself.

O que você precisa

  1. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Turn off the chainsaw: passo 1, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Turn off the chainsaw: passo 1, imagem 2 %32

    • Make sure you have the ignition switch turned off before starting your repair.

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

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  2. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Loosen the air filter cover: passo 2, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Loosen the air filter cover: passo 2, imagem 2 %32

    • Use your fingers to loosen the air filter cover knob.

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  3. Echo Chain Saw CS590 2019 Woodruff Key Replacement: passo 3, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement: passo 3, imagem 2 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement: passo 3, imagem 3 %32

    • Remove the air filter cover.

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  4. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Disconnect the spark plug: passo 4, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Disconnect the spark plug: passo 4, imagem 2 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Disconnect the spark plug: passo 4, imagem 3 %32

    • Use your fingers to pull up and disconnect the spark plug boot.

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  5. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the air filter: passo 5, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the air filter: passo 5, imagem 2 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the air filter: passo 5, imagem 3 %32

    • 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.

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  6. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the front handle: passo 6, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the front handle: passo 6, imagem 2 %32

    • 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

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  7. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the front handle: passo 7, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the front handle: passo 7, imagem 2 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the front handle: passo 7, imagem 3 %32

    • Pull the handle toward the rear of the device to remove it.

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  8. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the sprocket guard: passo 8, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the sprocket guard: passo 8, imagem 2 %32

    • Use a 13 mm wrench to remove the two nuts securing the sprocket guard.

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  9. Echo Chain Saw CS590 2019 Woodruff Key Replacement: passo 9, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement: passo 9, imagem 2 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement: passo 9, imagem 3 %32

    • Remove the sprocket guard.

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  10. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the guide bar: passo 10, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the guide bar: passo 10, imagem 2 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the guide bar: passo 10, imagem 3 %32

    • 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.

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  12. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the front hand guard: passo 11, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the front hand guard: passo 11, imagem 2 %32

    • 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.

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  13. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the front hand guard: passo 12, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the front hand guard: passo 12, imagem 2 %32

    • Pull the front hand guard toward the rear of the device to remove it.

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  14. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the engine cover: passo 13, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the engine cover: passo 13, imagem 2 %32

    • Use a T25 Torx screwdriver to remove the three 20 mm screws securing the engine cover.

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  15. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the engine cover: passo 14, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the engine cover: passo 14, imagem 2 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the engine cover: passo 14, imagem 3 %32

    • Pull the engine cover straight off the device to remove it.

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  16. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the starter case: passo 15, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the starter case: passo 15, imagem 2 %32

    • Use a T25 Torx screwdriver to remove the four 24 mm screws securing the starter case.

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  17. Echo Chain Saw CS590 2019 Woodruff Key Replacement: passo 16, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement: passo 16, imagem 2 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement: passo 16, imagem 3 %32

    • Remove the starter case.

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  18. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Reposition the spark plug cable: passo 17, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Reposition the spark plug cable: passo 17, imagem 2 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Reposition the spark plug cable: passo 17, imagem 3 %32

    • Use your fingers to reroute the spark plug cable from its slot in the fan cover.

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  19. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Reposition the ignition coil cable: passo 18, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Reposition the ignition coil cable: passo 18, imagem 2 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Reposition the ignition coil cable: passo 18, imagem 3 %32

    • Use your fingers to reroute the ignition coil cable from its slot in the fan cover.

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  20. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Disconnect the ignition coil: passo 19, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Disconnect the ignition coil: passo 19, imagem 2 %32

    • 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.

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  21. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the ignition coil: passo 20, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the ignition coil: passo 20, imagem 2 %32

    • 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.

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  22. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the ignition coil: passo 21, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the ignition coil: passo 21, imagem 2 %32

    • Remove the ignition coil.

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  23. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the flange nut: passo 22, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the flange nut: passo 22, imagem 2 %32

    • Wedge a flathead screwdriver between the chassis and the flywheel's spokes to prevent the flywheel from spinning.

    • Alternatively, you can seize the piston by inserting a rope down the spark plug shaft.

    • Use a 13 mm wrench to loosen and remove the flange nut located in the middle of the flywheel.

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  24. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the starter pawls: passo 23, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the starter pawls: passo 23, imagem 2 %32

    • Use a T25 Torx screwdriver to remove the two 16 mm screws securing the starter pawls.

    • Remove the starter pawls.

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  25. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Starter pawl assembly information: passo 24, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Starter pawl assembly information: passo 24, imagem 2 %32

    • During reassembly, be sure to reinstall the starter pawl assembly top to bottom in the following order:

    • 16 mm screw

    • Washer

    • Starter Pawl

    • Spacer

    • Torsion Spring

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  26. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the flywheel: passo 25, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the flywheel: passo 25, imagem 2 %32

    • Use a flywheel puller to disconnect the flywheel from the woodruff key.

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  27. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the flywheel: passo 26, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the flywheel: passo 26, imagem 2 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the flywheel: passo 26, imagem 3 %32

    • Pull the flywheel straight off of the crankshaft and remove it.

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  28. Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the woodruff key: passo 27, imagem 1 %32 Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the woodruff key: passo 27, imagem 2 %32

    • Insert a flathead screwdriver into the gap at the top of the woodruff key.

    • Pry with the screwdriver to separate the key from the crankshaft.

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  29. Echo Chain Saw CS590 2019 Woodruff Key Replacement: passo 28, imagem 1 %32

    • Use pliers, or your fingers, to remove the woodruff key.

    • During reassembly, be sure to reinsert the woodruff key with the flat side facing outward.

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Conclusão

To reassemble your device, follow these instructions in reverse order.

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