Hammer Drill Repair - Replacing the Yoke Unit (Makita Part # 638425-4)

2,020 views · Published 15 April 2016 · 4:49 · Indexed 6 November 2026

Channel: FIX Tech Guides · 2016 · Howto & Style

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http://www.ereplacementparts.com/yoke-unit-p-719476.html Click here for more information on this part, installation instructions and more.

This particular yoke unit is specific to Makita manufactured brands. To find a yoke unit specific to your model, visit eReplacementParts.com.

If your cordless hammer drill is showing any of these symptoms; replacing the yoke unit could solve your problem:

1) Metal fragments inside motor housing
2) The motor will not operate
3) Reduced power to motor
4) No power to motor
5) Metal flying out of drill during operation

eReplacementParts.com part number: 638425-4

Tools used for this repair/replacement:

1) Torx drivers
2) Phillip’s screwdriver
3) Long-nosed pliers
4) Small screwdriver

Get model-specific repair help from eReplacementParts.com. Learn how to troubleshoot, diagnose and repair your power tools and equipment with illustrated instructions, hundreds of step-by-step repair videos, and our DIY forum. If you have a power tool or appliance problem, we can help. https://www.ereplacementparts.com/articles-c-8873.html

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