Sticking plunge mechanism on cordless plunge track saw

[pgurnee]

My cordless track saw is 1 1/2 years old and has preformed flawlessly...until this week.

Plunging is getting more difficult and it will not return by itself.

 

I removed the blade to see what I could see...nothing obvious.

 

Any ideas?

Thanks

Paul

[Mordekyle]

Brand?

My Dewalt FV tracksaw has a thumb operated release that has to be toggled forward in order to plunge.

It releases a pin from the guard, allowing the plunge.

Sometimes it tends to stick a little bit. Cleaning and a squirt of silicone seems to help.




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[pgurnee]

It is the  Makita.

 

It also has a button that releases the plunge. It does this smoothly.

The problem is the return, the saw swinging back up to start so to speak.

I have to 'help' it pull it back up. 

I removed the blade and lubed the only points I can see that make contact that might prevent the saw from returning up to the start position but to no avail.

This is a new development. It has been an excellent saw for almost 2 years.

 

[ToolBane]

This sort of thing is almost never not going to be either accumulation of gunk, depletion of adequate grease, or both. With two years on it, I would suspect mostly the former. But if you fix it yourself you may as well regrease along the way anyway. I imagine it to be a pretty trivial thing to take apart and clean out but I don’t own the thing yet.

[EcoDIY]

Remove bottom plate & then hex screw on pivot pin case. Put grease (light grease best) in hex screw hole & replace hex screw. Plunge saw repeatedly to work grease in. Repeat if necessary. See https://www.fixya.com/support/t11121108-makita_plunge_saw_very_stiff_not_return#sln_38126486