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4th July 2023, 11:16 AM #1Novice
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Table Saw raise / lower issues Woodman
Hi knowledgeable friends - bit of background - ive had this table saw for a couple of years - everything works as expected and im still very impressed with it. The only annoying thing is the way the saw blade is raised and lowered - its very stiff to the point it takes two hands and a lot of effort. I assume this is not normal.... but its been like this since i owned it.
i have tried cleaning everywhere but still had no effect so i decided to 'fix' the issue once and for all. i have stripped down the whole machine and have found a couple of issues. The raise and lower winder shaft was bent - i have removed and tried to straighten as best as i can. The shaft did not turn freely in the brass looking housing - removed and cleanded and it is better. Looking to lubricate any ideas? Also there are a couple of teeth missing off the smaller gear - is it worth trying to find a replacement gear?
The main issue i think is the raise and lower mechanical parts. When i removed the mechanism from the 'dove tail' frame i had to physically knock it out with a mallet and block of wood. I would have thought this should be free moving or a slight friction fit? I have removed and cleaned everywhere but i need a some advice as to how tight a fit this should be? Also it looks like one side od the 'dove tail' has a removable insert any thoughts on that? is this something that can be removed (3 bolts and a couple of alignment pins? i removed the nuts but didnt want to try and force the insert out as i dont want to damage anything as i dont think i would be able to replace it.
While everything is in bits what is the best lubricant to use (in moderation of course.)
Cheers for any help.
Ozzie
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4th July 2023 11:16 AM # ADSGoogle Adsense Advertisement
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4th July 2023, 12:18 PM #2SENIOR MEMBER
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I've been using silverglide on mine, works reasonably well, only downside is you need to reapply regularly, ie when it starts squealing. I find that it works really well, with next to no buildup with dust and once lubricated runs very smooth.
I probably reapply every few months, this also makes sure i stay on top of the dust build up inside the cabinet.
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4th July 2023, 12:34 PM #3GOLD MEMBER
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- Aug 2011
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- bilpin
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Graphite powder. Doesn't collect dust.
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4th July 2023, 01:05 PM #4
For one of my saws with a mechanism like that that needs lube now and then I just oil it with motor oil from a oil can with a long spout and pump it on where its needed. Yes the dust sticks to it but the better the dust extraction the less of a problem it is. When my extraction was pretty average in previous workshop it got messy but id just blow off the accumulation with air and oil again every six months. The issue for you may be if you can get in to lube it once its back together. Id say most saws designed like that left the factory with a dab of grease on the gears and bearings. Its possibly a white grease that is less of a dust collector. Think I read that somewhere.
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4th July 2023, 04:30 PM #5Novice
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Hi Auscab - thanks for the reply - i think you have / had a similar saw as mine. How hard is the raise / lower mechanism when its normal? ie is it a one hand operation nice and smooth? just trying to work out what the goal is.
Also have you ever had to remove the mechanics from the dovetail and was it very tight?
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4th July 2023, 04:40 PM #6Novice
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- Oct 2018
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- Melbourne
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Thanks for the replys - i think i will try one of these whatever Bunnings have and see what its like once back together. Does anyone know if i should i be able to move the mechanism up and down by hand or does it need the mechanical gears to move?
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4th July 2023, 04:43 PM #7
Hi . It was just similar in that it was exposed gears. Not the same make. My one is an English Wadkin Bursgreen from the 1960s . It gets a bit hard to move without a clean and oil . No dovetail construction that I can remember. I looked through your pics but couldn’t figure out where your dovetail bit was .
Edit I just had another look . I see . They call that a Way a Dovetailed Way and the strip is the Gib I’m pretty sure .
That will all come out . After you clean and oil they go back together and the three screws are tightened back up then backed off a tiny amount ( 1/8 to 1/4 turn of screw roughly ) to let the thing move up and down but without sideways movement .
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4th July 2023, 09:08 PM #8
Yeah, the insert is a gib, common to dovetail ways in all kinds of machines. For lube I use a spray dry lube. CRC (Autobarn) and WD40 both make a teflon dry spray lube. Also any good modern bicycle chain spray lube will work. I use LPS-1, but I wouldn’t pay the local price for it.
As mentioned, if your dust collection and housekeeping are good, any lube will work if the mechanism is kept clean and lubed regularly.It's all part of the service here at The House of Pain™
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17th July 2023, 05:10 PM #9Novice
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- Melbourne
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UPDATE - managed to get everything off and cleaned and lubed up. Had everything moving freely off saw. Then when i put it all back together it was OK until i put the heavy motor onto the frame. I think the extra weight of the motor just makes the lift a little 'heavy'. I have removed the hand wheel and replaced with a couple of nuts and added loctite. I can now use my drill on slow speed and it moves the lift up perfectly. On a side note when i was cleaning the mechanism i found a build up of sawdust which was stopping me getting a true 45 degree cut - now ive cleaned it the saw goes to 45 drgrees with ease.
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17th July 2023, 05:19 PM #10Novice
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- Melbourne
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Managed to take apart and clean - came up very well.
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