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Introduction

Use this guide to replace a faulty switch in your Ryobi P411. The switch is the part that is inside the sander that activates the machine when the switch trigger is depressed. If your device is not turning on, the cause might be a faulty or broken switch. Before replacing the switch, make sure to review the troubleshooting page to make sure nothing else is preventing your Ryobi P411 from turning on. Make sure to remove the battery before beginning.

What you need

Step 1 Pad Assembly

Ryobi P411 Switch Replacement, Pad Assembly: step 1, image 1 of 3

Ryobi P411 Switch Replacement, Pad Assembly: step 1, image 2 of 3

Ryobi P411 Switch Replacement, Pad Assembly: step 1, image 3 of 3

Remove the sanding pad to expose the screws at the bottom of the sander.

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Step 2

Ryobi P411 Switch Replacement: step 2, image 3 of 3

Remove the four M5 x 8.9mm screws with a T6 Torx screwdriver.
Remove the pad assembly.

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Step 3 Casing

Ryobi P411 Switch Replacement, Casing: step 3, image 1 of 2

Ryobi P411 Switch Replacement, Casing: step 3, image 2 of 2

Use a Phillips #1 screwdriver to remove the eight M4 x 18.5mm screws from the side of the casing.

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Step 4

Ryobi P411 Switch Replacement: step 4, image 3 of 3

Open the sander by separating each half of the case apart.

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Step 5 Switch Trigger

Ryobi P411 Switch Replacement, Switch Trigger: step 5, image 1 of 3

Ryobi P411 Switch Replacement, Switch Trigger: step 5, image 2 of 3

Ryobi P411 Switch Replacement, Switch Trigger: step 5, image 3 of 3

Push the switch trigger gently from the back to pull it out from the open face of the sander.

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Step 6 Switch

Ryobi P411 Switch Replacement, Switch: step 6, image 1 of 3

Ryobi P411 Switch Replacement, Switch: step 6, image 2 of 3

Ryobi P411 Switch Replacement, Switch: step 6, image 3 of 3

Remove the switch from its housing.
Take care not to strain the connected cables.

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Step 7

Ryobi P411 Switch Replacement: step 7, image 3 of 3

Use a soldering iron to desolder the two switch connections.
If you're unfamiliar with soldering, review this guide.

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Conclusion

To reassemble your device, follow the above steps in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting or ask our Answers community for help.