Makita recipro saw makes a clicking noise when I try and run it. Model 4390D

They are one of the hardest to remove - we usually clamp the end of the boot in a vise and using a couple screwdrivers from the handle end, turn the boot inside out and peel it off.

I sell & repair the Makita line of tools and the BL1830 (194205-3) battery is designed to fit on Makita's entire line of 18-volt tools. You didn't give the model number of your saw so my best suggestion is to make sure the saw is an 18-volt tool then make sure the tool's and battery's mating surfaces are OK. Try the battery in other tools & try other batteries on the saw. If this doesn't help please respond with the saw's model number or what you found out doing what I've suggested.

It sounds like one of the teeth on the main gear is missing. Parts list @ Makita.com or call Makita at 1-800-462-5482

Hi marill469,

Here is a website where you can download the owner's manual for your saw: http://www.retrevo.com/d/ds/progress?doc=e045b5a9143e1e2ea028b778addd77ca&rk=0.7594880065395843

The instructions for blade insertion and removal are on page 7.

As far as I know, there is no upside down on a recip saw blade. You can use it either way. Upside down allows you to get the blade in tighter spaces due to the shape of the saw.

Hope this helps. If it does, I'd appreciate your vote. Thanks,

Handie Andie

For the most part they do vibrate, that's why it is good to make use of the blade guard when cutting. It cuts back on the vibration. I have hand to use a saw without having that guard against what I was cutting and I thought I was going to have my arm fall off. You may want to check to see that the blade and that part the blade goes into are nice and tight. I've used many saws on different jobs, the best brand of saw for the vibration standpoint that I've found is Craftsman.

Here you go click on the links below for the pdf file. I hope this helps, please rate if the answer provided has helped. Good Luck and have a Great Weekend.

Parts Breakdown
Product Manual

They have some power that's for sure. Different blades work on different surfaces. Make sure the blade is in and all the way and tight.

go to ereplacementparts.com

toolpartsdirect.com,,,schematics and parts

The replacement switch, is it Makita and was it a direct replacement for the original part? That could make a difference. I looked at the schematics for this tool and they do not furnish the wiring codes but I think you are on the right track. To make sure though I would call Makitas tech support people at 1-800-4625482 and have a wiring explosion sent to you. Let me know if you still need more help and I will contact them or call a local dealer that I know.