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Hitachi siding compond miter saw noise -Solved

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Forum topic by packetsmacker posted 07-20-2017 01:29 PM 346 views 0 times favorited 5 replies Add to Favorites Watch
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packetsmacker

31 posts in 2246 days


07-20-2017 01:29 PM

Topic tags/keywords: tool hitachi c12rsh high pitched noise

It’s the previous version of this model c12RSH. It has the two rails on the side if that makes sense.

I got it for fathers day 2016. I haven’t used it that much but I have a lot of projects coming down the pipe. My wife keeps adding to the list and now my saw is down. :(

The issue is a high pitched noise. It is so loud with the dust collector running and hearing protection I can’t use the saw. It’s not consistent either. I can’t tell if it is coming from the motor or some other part of the saw. Some times it doesn’t do it until I let off the trigger other times its like mid cut. Doesn’t matter what i am cutting it did it last night cutting a 1/4×1/4 molding. I have taken some of it apart looking for obvious signs of damage but it looks clean. I am leaning towards a baring but I can’t seem to get them out to really inspect them. With the blade off and turning it by hand it fills smooth. There is some play in the gear box (not sure that’s a good name for it) where the belt is connected to a shaft that is connect to the arbor. The other thing is even just running the saw for a few seconds without cutting anything the screw that goes in the arbor gets very hot. That makes me think its in that gear box assembly. Looks like I can get those parts for around $40 but I am not sure if I am going down the right path. I have never owned or used Hitachi power tools.

Is it possible the noise is normal and I am just used to my old saw? Is the play in that gear box normal?


5 replies so far

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sawdustdad

333 posts in 718 days


#1 posted 07-20-2017 01:38 PM

The screw that goes in the arbor end gets hot? This is the screw that retains the blade? If it’s getting hot, the blade is slipping. The screw is not tight enough and the blade is slipping on the arbor. I use an impact wrench on mine.

-- Murphy's Carpentry Corollary #3: Half of all boards cut to a specific length will be too short.

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packetsmacker

31 posts in 2246 days


#2 posted 07-20-2017 01:50 PM

Now that you said it when I took the blade off list night it wasn’t very tight. I will tighten it tonight and retest. Do you think that could also be the noise?

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BenDupre

531 posts in 321 days


#3 posted 07-20-2017 02:03 PM

Did you notice the blade not braking after the cut? This definitely means loose blade. Hope thats all you have. You do not need to crank the cr p out of the arbor screw, just get it tight. If it happens again condider a blade stabilizer.

-- The problem with communication is the illusion that it has occurred. – George Bernard Shaw

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sawdustdad

333 posts in 718 days


#4 posted 07-20-2017 02:11 PM



Now that you said it when I took the blade off list night it wasn t very tight. I will tighten it tonight and retest. Do you think that could also be the noise?

- packetsmacker

A loose blade could easily be causing the squeal.

-- Murphy's Carpentry Corollary #3: Half of all boards cut to a specific length will be too short.

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packetsmacker

31 posts in 2246 days


#5 posted 07-23-2017 05:57 PM

Thanks guys tightening the blade really good seems to have fixed it.

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