Introduction
This guide will show you how to replace the caster wheel on the iRobot Roomba i7 Plus (model number l7555020). The caster wheel is very important to the Roomba because it helps direct the Roomba to where it needs to go in direction. If the Roomba seems like it is getting stuck or can't go in a certain direction the caster wheel may have some sort of problem.
For help diagnosing issues with the caster wheel, check out the troubleshooting page.
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Flip the Roomba over so the underside is facing up.
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Grab the caster wheel and pull up to remove it from the vacuum.
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Conclusion
To reassemble your device, follow these instructions in reverse order.
