Makita 3612BR does not plunge - Page 2 - Router Forums
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post #11 of 20 (permalink) Old 09-20-2019, 05:41 PM Thread Starter
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Stick,
Lots of great stuff, thanks a lot.
Ed
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post #12 of 20 (permalink) Old 09-21-2019, 02:09 AM
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Okay, that helps Ed. Is there any chance that the former owner knows if it was used in a router table? If it was and stayed upside down for a while then I'm betting on sawdust has frozen the tubes in place. You are aware of the column lock aren't you? Just to make sure.

I'll also pm Harry Sinclair down in Oz. Harry is probably the person most familiar with 3612s on this forum. We'll see if he might have some ideas.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #13 of 20 (permalink) Old 09-21-2019, 10:17 AM
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Remove the height adjustment knob and the router lifts off the the pillars.
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post #14 of 20 (permalink) Old 09-21-2019, 11:12 AM Thread Starter
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Well, that adjustment height knob has been off all the time and nothing moves.
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post #15 of 20 (permalink) Old 09-21-2019, 11:23 AM
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That's the only thing that can hold it down except for the column lock lever. That knob looks similar to the one on my Hitachi M12V. It has the nut inside the knob. There is nothing on the router body making connection to it, it's just a blank hole through it. That one either has the nut in the knob or that washer is threaded. Make sure the column lock lever is in the open position then you'll need to start tapping around the base with a rubber mallet. It took me a while to loosen mine up to get it sliding again. Tap going both ways.
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post #16 of 20 (permalink) Old 09-21-2019, 11:40 AM Thread Starter
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OK, I'll try that tapping thing.
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post #17 of 20 (permalink) Old 09-21-2019, 12:41 PM Thread Starter
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Finally, that tapping did the trick, thanks a lot.
I'll polish the columns with fine steel wool and lubricate accordingly.
My adjustment height knob consists only of that round nut thing with the two pin holes on the bottom of your first pic.
I'm wondering if that 90 mm long thing is available as spare part?
Thanks again for all the input.
Ed
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post #18 of 20 (permalink) Old 09-24-2019, 03:35 AM
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The item is a "pole"! part number 314062-5 and should be available.

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post #19 of 20 (permalink) Old 09-24-2019, 11:18 AM
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Ed you have to use some type of dry lubricant. Anything wet or sticky will attract more dust. Glad to hear it came loose. If you're using it under a table it's a good idea to take and turn it right side up again once in a while and cycle it all the way up and down.

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post #20 of 20 (permalink) Old 09-24-2019, 11:31 AM Thread Starter
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Guys,
Thanks again for all the input and help. Very much appreciated.
Ed
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