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Hitachi TR-12 collet threads off the same direction as the blade turns

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Forum topic by gsimon posted 03-19-2014 11:34 PM 1607 views 0 times favorited 10 replies Add to Favorites Watch
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gsimon

1198 posts in 1581 days


03-19-2014 11:34 PM

Topic tags/keywords: question router

I purchased a delta table saw with extension tables and a built on router table from a fine gentleman a couple of months ago. the collet on the Hitachi TR-12 started wobbling during use. the bit was tight in the collet but the collet was loosening up.

When I took it apart I saw the direction to loosen the collet on the thread is the same direction the blade turns
I can’t use it now – has anyone run into this before? Did the previous guy swap collets or something?
He had a black gasket and epoxy holding it place which failed of course.
Other than that it’s outfitted nicely in the table and is a workhorse so I would rather not replace
Any help is appreciated
Greg

-- Greg Simon


10 replies so far

View cpine's profile

cpine

98 posts in 1324 days


#1 posted 03-20-2014 03:34 AM

I am as lost as you about this! How could it be threaded the wrong direction? I would like to help but am not knowing why this would be.
Chris

-- Chris Pine

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waho6o9

7180 posts in 2045 days


#2 posted 03-20-2014 03:38 AM

I’d send it in to Hitachi and have them fix it.

View gsimon's profile

gsimon

1198 posts in 1581 days


#3 posted 03-20-2014 08:54 PM

i talked to a guy at a mill supply shop today and he thinks it’s correct and that when i apply pressure of running wood through it would technically tighten the thread. The problem is that i can’t get the collet to tighten on because it disappears into the router and there no way to pin one part down to tighten the other
I may just try Lock-Tite but I still can’t believe that it would be engineered this way

-- Greg Simon

View Mark Shymanski's profile

Mark Shymanski

5314 posts in 3180 days


#4 posted 03-20-2014 09:17 PM

Is it the tight collet for the bit or chuck you are using. Sounds like you are not able to get it tight enough before you start using it. The collet shouldn’t be able to dissappear down the router with the bit in place. Maybe a picture of the situation would help.

-- "Checking for square? What madness is this! The cabinet is square because I will it to be so!" Jeremy Greiner LJ Topic#20953 2011 Feb 2

View bigblockyeti's profile

bigblockyeti

3668 posts in 1188 days


#5 posted 03-20-2014 10:18 PM

I’ve had many, many routers apart and this certainly doesn’t sound right at all. Do you by chance have a picture?

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gsimon

1198 posts in 1581 days


#6 posted 03-22-2014 01:08 AM

sorry – i should of included pics
I feel like this is a idiot request but i can’t tighten the collet onto the threaded router shaft tight enough and it wants to spin or vibrate off during use – see pics!

-- Greg Simon

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tefinn

1222 posts in 1905 days


#7 posted 03-22-2014 01:41 AM

Hey Greg. Sounds to me as if you need to immobilize the shaft to secure the collet nut. On some of the routers I’ve used, you need to open up the top of the router to access the armature shaft. The top of the shaft may have flats for a wrench or an inset for a hex wrench. Even if it doesn’t have either of these you may still see a way to hold the shaft while you get the chuck tightened.

-- Tom Finnigan - Measures? We don't need no stinking measures! - Hmm, maybe thats why my project pieces don't fit.

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waho6o9

7180 posts in 2045 days


#8 posted 03-22-2014 02:31 AM

View gsimon's profile

gsimon

1198 posts in 1581 days


#9 posted 03-22-2014 11:21 PM

thanks for all the feedback guys
i’ve downloaded and printed the pdf instructions as well for my records
after looking at it, the threaded shaft it goes through the casing and there is a fan right on the other side
there would not be an area to lock down so i simply stuck a screwdriver through the vent slot into the fan blade to stop it from spinning and tighten the collet on the shaft.
I re-assembled everything and it ran fine – for now

i still can’t see how this would have been engineered like this as a tool
I’ll stop whining now and get to work and if it fails again i’ll make a new table plate and mount my DeWalt
cheers
Greg

-- Greg Simon

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bigblockyeti

3668 posts in 1188 days


#10 posted 03-23-2014 01:03 AM

The Milwaukee’s which I’m most familiar with require a special tool to hold the armature shaft while tightening the collet onto the shaft to a torque much greater than you’d have to tighten a bit into the collet. The same could be accomplished by stuffing a rag around the armature to hold it if you didn’t have the tool.

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