Echo Chain Saw CS590 2019 Woodruff Key Replacement

Alex Diaz-Kokaisl

最后更新于 February 21, 2023

1 - 2 小时

中等

简介

转到步骤 1

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.

你所需要的

当你通过这些链接购买商品时，iFixit 会赚取佣金。

步骤 1 Turn off the chainsaw

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Turn off the chainsaw: 步骤 1 中的图像 1，2

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Turn off the chainsaw: 步骤 1 中的图像 2，2

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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步骤 2 Loosen the air filter cover

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Loosen the air filter cover: 步骤 2 中的图像 1，2

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Loosen the air filter cover: 步骤 2 中的图像 2，2

Use your fingers to loosen the air filter cover knob.

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步骤 3

Echo Chain Saw CS590 2019 Woodruff Key Replacement: 步骤 3 中的图像 3，3

Remove the air filter cover.

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步骤 4 Disconnect the spark plug

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Disconnect the spark plug: 步骤 4 中的图像 1，3

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Disconnect the spark plug: 步骤 4 中的图像 2，3

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Disconnect the spark plug: 步骤 4 中的图像 3，3

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

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步骤 5 Remove the air filter

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the air filter: 步骤 5 中的图像 1，3

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the air filter: 步骤 5 中的图像 2，3

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the air filter: 步骤 5 中的图像 3，3

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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步骤 6 Unfasten the front handle

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the front handle: 步骤 6 中的图像 1，2

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the front handle: 步骤 6 中的图像 2，2

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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步骤 7 Remove the front handle

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the front handle: 步骤 7 中的图像 1，3

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the front handle: 步骤 7 中的图像 2，3

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the front handle: 步骤 7 中的图像 3，3

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

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步骤 8 Remove the sprocket guard

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the sprocket guard: 步骤 8 中的图像 1，2

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the sprocket guard: 步骤 8 中的图像 2，2

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

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步骤 9

Echo Chain Saw CS590 2019 Woodruff Key Replacement: 步骤 9 中的图像 3，3

Remove the sprocket guard.

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步骤 10 Remove the guide bar

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the guide bar: 步骤 10 中的图像 1，3

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the guide bar: 步骤 10 中的图像 2，3

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the guide bar: 步骤 10 中的图像 3，3

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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步骤 11 Unfasten the front hand guard

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the front hand guard: 步骤 11 中的图像 1，2

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the front hand guard: 步骤 11 中的图像 2，2

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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步骤 12 Remove the front hand guard

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the front hand guard: 步骤 12 中的图像 1，2

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the front hand guard: 步骤 12 中的图像 2，2

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

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步骤 13 Unfasten the engine cover

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the engine cover: 步骤 13 中的图像 1，2

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the engine cover: 步骤 13 中的图像 2，2

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

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步骤 14 Remove the engine cover

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the engine cover: 步骤 14 中的图像 1，3

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the engine cover: 步骤 14 中的图像 2，3

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the engine cover: 步骤 14 中的图像 3，3

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

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步骤 15 Unfasten the starter case

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the starter case: 步骤 15 中的图像 1，2

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the starter case: 步骤 15 中的图像 2，2

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

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步骤 16

Echo Chain Saw CS590 2019 Woodruff Key Replacement: 步骤 16 中的图像 3，3

Remove the starter case.

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步骤 17 Reposition the spark plug cable

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Reposition the spark plug cable: 步骤 17 中的图像 1，3

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Reposition the spark plug cable: 步骤 17 中的图像 2，3

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Reposition the spark plug cable: 步骤 17 中的图像 3，3

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

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步骤 18 Reposition the ignition coil cable

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Reposition the ignition coil cable: 步骤 18 中的图像 1，3

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Reposition the ignition coil cable: 步骤 18 中的图像 2，3

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Reposition the ignition coil cable: 步骤 18 中的图像 3，3

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

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步骤 19 Disconnect the ignition coil

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Disconnect the ignition coil: 步骤 19 中的图像 1，2

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Disconnect the ignition coil: 步骤 19 中的图像 2，2

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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步骤 20 Unfasten the ignition coil

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the ignition coil: 步骤 20 中的图像 1，2

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the ignition coil: 步骤 20 中的图像 2，2

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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步骤 21 Remove the ignition coil

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the ignition coil: 步骤 21 中的图像 1，2

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the ignition coil: 步骤 21 中的图像 2，2

Remove the ignition coil.

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步骤 22 Remove the flange nut

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the flange nut: 步骤 22 中的图像 1，2

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Remove the flange nut: 步骤 22 中的图像 2，2

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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步骤 23 Unfasten the starter pawls

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the starter pawls: 步骤 23 中的图像 1，2

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Unfasten the starter pawls: 步骤 23 中的图像 2，2

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

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步骤 24 Starter pawl assembly information

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Starter pawl assembly information: 步骤 24 中的图像 1，2

Echo Chain Saw CS590 2019 Woodruff Key Replacement, Starter pawl assembly information: 步骤 24 中的图像 2，2

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