Quick Fix: How to Replace the Switch on a Makita Grinder
Finish Nailer Repair - Replacing the Driver Guide (Ridgid Part # 79004001022)
Switches in power tools are one of those parts that wear our faster than other internal parts. Like brushes, when the switch fails you won't get much done until you replace it. Waiting on a repair shop is an expensive option, and so is buying a new tool. With this article, you can learn how to replace the switch yourself, which will save you time and money.
Remember to use our Makita parts finder to find the switches designed specifically for your Makita tools.
Replacing the Switch
1. Remove the covers
Remove the screws that secure the covers and remove the top cover. Also remove the lock button and back cover.
2. Remove the switch
Use your needle-nose pliers to disconnect the motor wires from the switch.
Flip the grinder over and remove the screw that secures the strain relief, then remove it from the grinder.
Pull back on the tab that holds the switch, then use your pliers to lift the switch out of the grinder.
With the switch removed, you can disconnect the cord wires with a screwdriver.
3. Install the new switch
The installation works in reverse order of removal. First connect and tighten down the cord wires.
Then place the switch in the grinder housing.
Secure the power cord with the strain relief.
Then flip the grinder over and connect the motor wires.
4. Reattach the covers
Now just re-install the back cover, lock button, and top cover. Then tighten down the screws to finalize the repair.
Conclusion
Replacing the switch on a Makita grinder is a simple repair that you can complete in about 10 minutes. It will help get your grinder running again and will save you a lot of time and money compared to the repair shop.
Remember to use our power tool parts finder to find switches, brushes, and other parts for all the power tools on your workbench.