I have a DW745 type 4, I had the same alignment problem. I searched and found your video and also your table saw safety video. Then I read the user manual and I found I never installed the riving knife correctly for years!!! The knob for holding the riving knife has a locking machenism, which I never know. I installed it only the half way without locking it. Once I locked it, then it aligns perfectly. This is so dangerous that I didn't lock it! I'm so lucky I haven't got injured. Thanks a lot for your videos!
I have a DW 745-XE table saw and had the same problem as you have. I found that if you remove the black plastic cover on the left hand side of the riving knife locking screw you will find 3 set screws which allow you to move the riving knife left or right. I now have mine set to the dead centre of the blade and have no problems. I live in Western Australia and would imagine the saw wouldn't be that much different in the UK. Hope you find this useful. Kind Regards Robert.
I had this problem as well and it’s been bugging me so decided to sort it today and found a good method. So I bought mine secondhand and didn’t even get the mitre. When I looked at where the riving knife goes in on mine you have a black oblong plate with a small Philip’s screw in each corner and a hole in the middle with a 13 m bolt in it. When you loosen the 13 mm bolt you can then push it in to release the clamp holding the riving knife and extract it. Next I got an off cut of a self adhesive foil tape measure I had and stuck a pice of it to each of the bottom parts of the riving knife that goes into the clamp. I tightened the 13 mm bolt and it was much better, although still not perfect. So I loosened the 13 mm bolt again pushed it in and removed the riving knife again. This time I added another layer of self adhesive tape measure to just the part of the riving knife nearest the front of the table. I pushed the 13 mm bolt and tried to insert it again but it was a little tight so I loosened the two Philips screws nearest the front of the table pushed on the 13 mm bolt and it slipped in. I then tightened the two Philips screws and the 13 mm bolt and it was perfect. Hope this helps.
Ok just got mine today and had the same problem but I have solved it without the need for brute force. Contained in the box with one of the components are some small rectangular pieces of metal with holes in. I have no idea what they are for as they are not mentioned in the instructions...... Whether they are shims or not I have no idea. But that's what I have used them for. So basically I wedged one of the shims into the clamping mechanism along with the rithing knife. I just wedged one corner into the clamp next to the blade and moved it about until the knife was parallel with the blade and then tightened the clamp. Now it's all perfectly level! And I didn't need my mallet after all. I took some callipers to the shim and it's only 0.2 mm thick but is just enough to make the rithing knife level. Hope this helps some folks
@@rickymcgrath2314 I've got a dw744w, type 6 (made in 2012 I think) with the same problem - seller didn't have manual. Could you please tell me what page 10 says, or send to llowe22@gmail.com? Thanks, Larry Lowe
Thanks for the update Andy, I was thinking try a lever bend first before going for the hammer, but whatever works. Good comments about showing the safety first angle in your video - always worth remembering especially in this age of TH-cam replacing fathers, uncles and apprenticeships.
Mine was the same - out of shape, and I bought mine around the same time. I hit mine with a hammer too! I also re-shaped mine to be low profile - that way I never have to take it out. I never use the blade guard but personally would never use it without the riving knife fitted
I chopped my DW745 riving knife down to a smidgen under the blade height within a week of getting it. It also needed a bit of force to get it exactly aligned with the blade. My garage is small and cluttered enough that it doubles as a bench much of the time, and running like that lets me drop the blade entirely out of the way, and use a cross-cut sled easily without removing the riving knife entirely. Admirable approach to using the guard where possible though - I might pick up a spare to use for when it's just lots of simple rips to get done.
I was so much happier after I cut the top off the riving knife. That said, I do still want to build something new to re-add the blade guard, since that was obviously cut off in the process.
I have the same saw. I made a replacement riving knife that is the same height as the blade. Allows me to use sleds to cut slots etc. But i would never use it without one.
Thanks for the link Andy. Just had mine apart to see if I could see any adjustment screws. The riving knife holder is just a cast block with no adjustment, and if I added the shims I'd be pushing it farther out of alignment, I my case the block needs scimming by about a 1mm and then use the shims to fine tune the alignment. To get to the block you need to remove the rear cover and then the dust cover material to then get at two 5mm Allen Bolts to remove the block, Sadly I don't have anything to accurately remove the extra material so I'll have to adjust the knife in the same way as you have. Now I have just to put it all back togethre now. Was interesting to see a bit more of the saw and how its put together.
I can't even see where you'd put the shims on mine - the slot is pretty much the width of the knife - certainly no room for 2-3mm worth of shims. All very odd. 😀
Right at the bottom ot the riving knife holder, if you tilt the saw over to 45 degrees at full height then you'll just be able to make them out. Then the shims go between the riving knife block and the mounting bracket. Time wise your solutions is a lot faster and easier. It a pity that Dewalt didn't see this issue farther than putting in a few shims that are in my case as good as paper saw blade.
I've had a problem with my riving knife pushing my pieces towards the right. At first, when I saw your video, I thought, "WTF, hit it with a hammer?? Who is this Neanderthal!" LOL. However, desperation took over and I gave that knife a good whack and wouldn't ya know it, now it's lined up perfectly parallel with the blade. Genius!
I have the same, or a very similar, model on a DW mobile stand, which suits me perfectly for carting it around and stowing it under a shelf. Generally I really like the saw (for my needs), but I do hate the riving knife. It's flimsy(ish), and I have to remove it for certain operations, as it is higher than the blade. I do, however, put it back afterwards (mostly, anyway...). Mine too is slightly out of alignment, but I never realised it may affect the cuts; I'll have to investigate that. Thanks!
Mine is the MK4 2018 version and its still bad, So off to get the really really bad hammer it is. I now have two riving knives as I mentioned before, I bought one just to cut it down to match the blade height, They are both out of alignment, I did get a small bag of shims and honestly don't think they will be enough. I did come very close to buying the DW7491, but with your review of the saw I went for the 745 with mobile stand, and the extra cash saved bought a compressor for when I got round to putting up an fence and erecting a Pergola and decking, as a framing nailer will be required as there is no way I could hammer all the nails in by hand.
It seems like the DW745-XE version (that the US videos show) has a much better riving knife and guard arrangement. I think that can be tweaked too with 4 adjustment screws for alignment! I found a small shim of painters tape in the top corner where it inserts into the fastening plate was enough to move mine the fraction needed. The knife itself is flat, its the mounting that''s not great.
Same saw, same problem, I solved it the same way. I also bought second RK and cut it down so that I can cut grooves and finger joints etc - needed to cut it with an angle grinder as the steel is REALLY hard!
As you are using a non standard blade (is the riving knife suitable for that blade), looks like the kerf is much wider than the riving knife? Also I think it is more dangerous to have an out of line riving knife, than removing the crown guard. I have a newer Dewalt with a flush riving knife, which I would highly recommend as it allows for partial height cuts (half lap, rebates, etc). These machines with less robust riving knives are more dangerous than the big machines with rigid ones and safety is really down to good technique and I agree they can be very dangerous in the wrong hands. Thanks for the update.
Riving knife is 2.3mm and blade is 2.8mm kerf so that allows 0.25mm either side of the cut, which is pretty near perfect. The flush knife is defo worthwhile. 👍
I bought a DW745 in April 2016, and had riving knife problems from new. The RK itself appeared to be straight, but the mounting block for it was at an angle, so that at cutting height, the RK ended up about 1.5 mm to the right. When the fence was on the right, the RK forced the piece I was cutting against the fence with so much pressure, that it was difficult to push through at a steady speed. When the fence was on the left, it pulled the piece away from the blade, so the cut was terrible. I emailed DeWalt, and eventually sent the saw back to them for repair. A couple of weeks later, I got the saw back with a perfectly aligned RK. I don't know what they did - but I suspect they 'fixed' the mounting block in some way because I think the RK is still straight. If anyone has a link to where you can get the new RK that doesn't protrude above the blade, a lot of us would be interested ...
I have a Ridgid and have the same problem with the RK being crooked since new. As a new woodworker, I didn’t know what was going on at first because like you, I had a lot of problems pushing wood through because the RK was pushing into the fence. I could not adjust it enough to get it back into alignment. It’s crooked both horizontally and vertically. After watching this vid I pulled the RK and found it is bent. It wasn’t obvious, but after measuring from many angles and shining light around it, it’s definitely bent!
Lol. I thought you were joking with the intro and the hammer. I just got a DWE7485, and the riving knife is misaligned, causing the workpiece to slightly catch on the way through, and maybe throw off the cut? I need to play with it some more. Might need some "percussive maintenance".
My Dewalt 744 does not have any adjustment screws either. I solved the problem by shimming 3 decking cards at the bottom of the attachment plate on the left side ( my riving knife was too far right) and it worked perfectly. No banging necessary.
I had 7470 model and the knife miss align since I changed the blade. Today I almost applied your technic but unfortunately I dont have a big hammer so I remove all knife locking parts out and find out that the knife can be shifted(to the right) by putting 2 washer in the 2 holding nuts. After a couple of tried, the 0.9mm washer thickness made my knife perfectly align with the blade. Thank for your video anyway.
Been using a similar saw for 10's of years, got my thump on the blade Monday, spent the rest of Monday, Tuesday, Wednesday and now going to be Thursday in Hospital trying to get it fixed. I have ordered a riving knife and top guard, even though to my knowledge, the saw has never had one.
Hello , I had the exact same model and same issue. At first I thought of following your approach but i saw some suggestions on using Sims and finally I fixed it with a couple of Sims (those came with the package but not sure for which purpose:))
got stanley something, same issue gotta try your way though, got several kickback with small pieces but not direct into me, still hate it. last time i try to fix it, i did clamp the cut-disc with riving knife to set it straight. but when i push wood it stuck.
My early 2017 DW745 looks identical to yours but the riving knife on mine is perfectly aligned. When tilted it does go out of whack slightly with the guard on but not to the extent that yours does in this video. When the guard is off it is fine. Perhaps Dewalt fixed the problem or maybe there were manufacturing defects in some of them but it's nothing a lump hammer can't fix I guess lol. Mine also came with some thin, rectangular metal parts. I didn't know what they were for but after watching this I now know they are for shimming the riving knife for use with different width blades.
The 745 has riving knife adjustment screws at the base where the knife mounts. I believe you have 3 locking screws and 2 adjustment screws. Mine was a 2014. I now have a 7480 with the same adjustments. But a hammer works apparently.
I had this issue on my 7491 Model saw and there are 4 allen head screws in the clapping mechanism 2 x 3mm and 2 x 4mm that move the diving knife left and right. could it be that simple on your model?
I see where you're coming from. No amount of caution words will necessarily overcome the power of the image. In this video you showed how important it was to get the riving knife working as intended rather than giving up on it. Even if 'persuasion' was needed... Nice one.
I think I have the same model, but not the same problem. I do currently run it without the knife since I use a sled. Would love to have one that isn't higher than the blade.
Have the same problem with my Festool CMS. I tried this technique before and it's a bit better but I think I need to bend it a touch more. Or get festool to send me a replacement
I have watched your videos and bought a DW745 type 4. If you put the knife on a.flat surface is it straight? Can fix that, if not. Is the blade thinner/thicker than standard? Can fix this with (supplied) shims, if not. The block with spring loaded bolt is fixed with two Allen bolts. Each shim is 0.008” I found the riving knife closer to fence with a standard blade, but with a Freud blade it was closer to the opposite side. So adding shims wasn’t required and/or good for most blades. US version uses a different method with three Allen bolts to change the angle - too complicated as shims move it in/ out but keep it parallel on the UK version. Of course there may be minor changes for type 4 so they could all be a bit different. Great saw BTW.
Sods law you are very, very correct.I have watched a number of TH-cam shows on wood working with guards missing and a lot of presenters say its not their problem!!.Video presentation is just like a picture tells what a thousand words can't so people copy what they see.I have had kickback and like you stand to one side but it still got me, my thumb is scarred with oddly enough what looks like my initial,K, so branded by my shop saw and left with a warning. Keep up the good ideas Marra
sparky robin just get an adjustable spanner close it on the riving knife and pull it in the direction you want to move the knife, no hammer required or dismantle
Just got mine today. Set up was easy and everything looks good.....except for the riving knife! It's about 1 mm to towards the fence and is guaranteed to pull my cuts out. This is very annoying. Now got to get the mallet out!!
It's just one of those situations where you're not going to be able to please all of the people all of the time. Most important thing here, in my opinion, is that you did the right thing first time, mate.👍 I guess there has to be some level of duty of care here, as far as beginners are concerned.
Hi Andy, just used your video to fix my saw. Quick question, I was trying to rip 1 inch marine plywood in half, it needed two runs as it was 20cm high but it started smoking 1/3 of the way. Was this due to no air flow around the blade?
Interesting... my DWE749 has the same issue, and can't find any way to adjust. No clue how it got out of whack in the first place either. Guess I better get out the BFH ! (once I find the knife.... shhhh)
Out of a matter of interest, have you ever had kickback? I have once and I'm wondering if that's what's thrown it out - sure it wasn't like that from new. 🤔👍
Not with this saw. Mine wasn't like that from new either, and I've been careful of blade thickness. Had some damp pinchy plywood once but seriously doubt that caused it. Solar storms maybe? LOL
Hello I liked the video and the great explanation. I have a question. I would like to replace the saw tray with a better saw tray for a clean cut. I would like, if you will, to describe me with a great saw tray with the specifications you requested. I have the same Deault saw that you have in your workshop. I would like you to write the number and type, and can I get it from Amazon. Thank you and I wish you a nice day, safety and security My greetings
I took mine off. I been using table saws for 20 years. It was making my saw more dangerous with the bent riving knife. Dewalt needs a new feature for the knife on future saws
Accuracy is a must. I would have disassembled the unit to ensure it was the riving knife that was bent and not the housing. If it was the knife that was bent, I would have purchased a new one.
@@lukefranco68 i just remove the riving knife whenever I need to make groove cuts. But I've seen other people cut off the riving knife to the height of the blade.
Of course the big hammer is nonsense. You should use a good recoilles hammer, put the riving knive on a absolutly flat surface (an anvil would be good, but a hardwood is ok) and look after every hit, if its ok. Don't use a vise. I had the same problem with my riving knife in my saw. Took me 30 minutes and this guy was so perfect flat and surprise, fits.
Have you considered cutting the slot on the knife that goes over the bolt to hold it on a bit to lower the hight of the knife to the hight of the blade?
There are screws to adjust the riving knife . FIVE of them two at the bottom to fix it and three in a triangular shape to adjust it . DO NOT HAMMER the riving knife.IT is all in the instruction book . Well fancy that.
Wow, at 1:32, that little bit of pressure on the riving knife makes the saw blade move? 4:35 Precision wood working at it's finest, lol. If all else fails, use a really big hammer ;-)
I commend you for putting out videos with the safety features attached, but I feel as if you probably did the opposite of what you intended in this case. You showed how crap they are (at least on site saws) and why people will would want to remove them to perform the cut as intended. :p
Sorry, I meant in the previous video. You were trying to demonstrate that guards should be used, but it was clearly causing an issue due to poor quality (whether is was related to the riving knife or not). So it didn't really help your argument. BUt I totally agree, the safety equipment should be used! .. just next time, have it working properly to help your argument :p ... Glad you have it sorted now though.
Good video, encouraging new starters to use safety guard / riving knife is a great idea. However your message was diluted when you said that when off camera you often don’t. As an aside I do chat your style of videos 👍🏻
Must be something wrong with yours then my one is perfect in line with blade ..My one came with the newer Riving Knife its lower then the blade just a bit ..
Hahaha! I watched this thinking he was going to adjust the Riving knife with the screws. OK, I guess I'll keep searching. Just wish he mentioned EARLY on (yakking reminds me of an old girlfriend) how he was going to correct problem. Peace all!
DeWalt DWE7485 GB 240V 210mm 1850W is the same. the clearance plate too is shockingly bad. the mitre gauage is terrible too. originally ide bought an evolution cheapo for 130 n had to send it back as my 3 year olds bicep is stronger than that fence so. i bought the dewalt one model mentioned above and i love yhe fence but fuxk me... why all that engineering if your going to fail on the other faults.
I have the same DW745. It is incredible that someone does not read the manuals, you should never hit something that is already configured at the factory. The instructions for aligning the ribing knife come in the manual and are 3 small screws with an allen key that adjust for the angle and center this knife. But I repeat never hit things so important and related to safety. I already located the 3 screws and tightened properly. Greetings.
500 quid n riving knife issuses. n dont get me started on that absolute dog shit mitre gauge. the amount of movement wobble is pathetic. 500 quid. i mean.. come on dewalt. sort it out
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I have a DW745 type 4, I had the same alignment problem. I searched and found your video and also your table saw safety video. Then I read the user manual and I found I never installed the riving knife correctly for years!!! The knob for holding the riving knife has a locking machenism, which I never know. I installed it only the half way without locking it. Once I locked it, then it aligns perfectly. This is so dangerous that I didn't lock it! I'm so lucky I haven't got injured. Thanks a lot for your videos!
I have a DW 745-XE table saw and had the same problem as you have. I found that if you remove the black plastic cover on the left hand side of the riving knife locking screw you will find 3 set screws which allow you to move the riving knife left or right. I now have mine set to the dead centre of the blade and have no problems. I live in Western Australia and would imagine the saw wouldn't be that much different in the UK. Hope you find this useful. Kind Regards Robert.
I had this problem as well and it’s been bugging me so decided to sort it today and found a good method. So I bought mine secondhand and didn’t even get the mitre. When I looked at where the riving knife goes in on mine you have a black oblong plate with a small Philip’s screw in each corner and a hole in the middle with a 13 m bolt in it. When you loosen the 13 mm bolt you can then push it in to release the clamp holding the riving knife and extract it. Next I got an off cut of a self adhesive foil tape measure I had and stuck a pice of it to each of the bottom parts of the riving knife that goes into the clamp. I tightened the 13 mm bolt and it was much better, although still not perfect. So I loosened the 13 mm bolt again pushed it in and removed the riving knife again. This time I added another layer of self adhesive tape measure to just the part of the riving knife nearest the front of the table. I pushed the 13 mm bolt and tried to insert it again but it was a little tight so I loosened the two Philips screws nearest the front of the table pushed on the 13 mm bolt and it slipped in. I then tightened the two Philips screws and the 13 mm bolt and it was perfect. Hope this helps.
Ok just got mine today and had the same problem but I have solved it without the need for brute force. Contained in the box with one of the components are some small rectangular pieces of metal with holes in. I have no idea what they are for as they are not mentioned in the instructions......
Whether they are shims or not I have no idea. But that's what I have used them for. So basically I wedged one of the shims into the clamping mechanism along with the rithing knife. I just wedged one corner into the clamp next to the blade and moved it about until the knife was parallel with the blade and then tightened the clamp. Now it's all perfectly level! And I didn't need my mallet after all. I took some callipers to the shim and it's only 0.2 mm thick but is just enough to make the rithing knife level. Hope this helps some folks
I did exactly the same with my new DW745. There was three shims in the box and using one of them solved it for me.
you should check out page 10 of the manual. it shows how to adjust the riving knife.
@@rickymcgrath2314 I've got a dw744w, type 6 (made in 2012 I think) with the same problem - seller didn't have manual. Could you please tell me what page 10 says, or send to llowe22@gmail.com? Thanks, Larry Lowe
Thanks for the update Andy, I was thinking try a lever bend first before going for the hammer, but whatever works. Good comments about showing the safety first angle in your video - always worth remembering especially in this age of TH-cam replacing fathers, uncles and apprenticeships.
Cheers bud! 👍🛠
Not many problems that can't be solved with a big hammer.
Too right!! 👍😂
Glad you got it sorted Andy. Good to see you didn't go down the route of some of our cousins from across the pond and just remove the riving knife!
Cheers Jim! 👍
Mine was the same - out of shape, and I bought mine around the same time. I hit mine with a hammer too! I also re-shaped mine to be low profile - that way I never have to take it out. I never use the blade guard but personally would never use it without the riving knife fitted
Wise move - been on my to-do list for a while to buy a second low profile knife. 👍
Reshape do mine with an angle grinder and tidied it up with a file. Now it never comes off though I will check the alignment next time I use it.
I chopped my DW745 riving knife down to a smidgen under the blade height within a week of getting it. It also needed a bit of force to get it exactly aligned with the blade. My garage is small and cluttered enough that it doubles as a bench much of the time, and running like that lets me drop the blade entirely out of the way, and use a cross-cut sled easily without removing the riving knife entirely. Admirable approach to using the guard where possible though - I might pick up a spare to use for when it's just lots of simple rips to get done.
I was so much happier after I cut the top off the riving knife. That said, I do still want to build something new to re-add the blade guard, since that was obviously cut off in the process.
I think that would be a good balance - cut down knife most the time (mine doubles as a bench too lol!) and blade guard for repeated normal cuts. 👍
I have the same saw. I made a replacement riving knife that is the same height as the blade. Allows me to use sleds to cut slots etc. But i would never use it without one.
Mine is a bit bend too. Wondering if Dewalt will replace it? Also wish I could get a knife the was flush with the
blade top
Thanks for the link Andy. Just had mine apart to see if I could see any adjustment screws. The riving knife holder is just a cast block with no adjustment, and if I added the shims I'd be pushing it farther out of alignment, I my case the block needs scimming by about a 1mm and then use the shims to fine tune the alignment. To get to the block you need to remove the rear cover and then the dust cover material to then get at two 5mm Allen Bolts to remove the block, Sadly I don't have anything to accurately remove the extra material so I'll have to adjust the knife in the same way as you have. Now I have just to put it all back togethre now. Was interesting to see a bit more of the saw and how its put together.
I can't even see where you'd put the shims on mine - the slot is pretty much the width of the knife - certainly no room for 2-3mm worth of shims. All very odd. 😀
Right at the bottom ot the riving knife holder, if you tilt the saw over to 45 degrees at full height then you'll just be able to make them out. Then the shims go between the riving knife block and the mounting bracket. Time wise your solutions is a lot faster and easier. It a pity that Dewalt didn't see this issue farther than putting in a few shims that are in my case as good as paper saw blade.
I've had a problem with my riving knife pushing my pieces towards the right. At first, when I saw your video, I thought, "WTF, hit it with a hammer?? Who is this Neanderthal!" LOL. However, desperation took over and I gave that knife a good whack and wouldn't ya know it, now it's lined up perfectly parallel with the blade. Genius!
I have the same, or a very similar, model on a DW mobile stand, which suits me perfectly for carting it around and stowing it under a shelf. Generally I really like the saw (for my needs), but I do hate the riving knife. It's flimsy(ish), and I have to remove it for certain operations, as it is higher than the blade. I do, however, put it back afterwards (mostly, anyway...). Mine too is slightly out of alignment, but I never realised it may affect the cuts; I'll have to investigate that. Thanks!
I thought it was my fence at first - defo pulled the cuts out on mine. 👍
Mine is the MK4 2018 version and its still bad, So off to get the really really bad hammer it is. I now have two riving knives as I mentioned before, I bought one just to cut it down to match the blade height, They are both out of alignment, I did get a small bag of shims and honestly don't think they will be enough. I did come very close to buying the DW7491, but with your review of the saw I went for the 745 with mobile stand, and the extra cash saved bought a compressor for when I got round to putting up an fence and erecting a Pergola and decking, as a framing nailer will be required as there is no way I could hammer all the nails in by hand.
Interestingly this one shows an adjustment knob... www.2helpu.com/PDMSDocuments/EU/Docs/docpdf/DW745-TYP4_XE.pdf
It seems like the DW745-XE version (that the US videos show) has a much better riving knife and guard arrangement. I think that can be tweaked too with 4 adjustment screws for alignment! I found a small shim of painters tape in the top corner where it inserts into the fastening plate was enough to move mine the fraction needed. The knife itself is flat, its the mounting that''s not great.
ooh thanks
That's brilliant.
Same saw, same problem, I solved it the same way. I also bought second RK and cut it down so that I can cut grooves and finger joints etc - needed to cut it with an angle grinder as the steel is REALLY hard!
Was going to say - the genuine DeWalt one is REALLY hard steel. Good to know it can be done! 👍
As you are using a non standard blade (is the riving knife suitable for that blade), looks like the kerf is much wider than the riving knife? Also I think it is more dangerous to have an out of line riving knife, than removing the crown guard. I have a newer Dewalt with a flush riving knife, which I would highly recommend as it allows for partial height cuts (half lap, rebates, etc). These machines with less robust riving knives are more dangerous than the big machines with rigid ones and safety is really down to good technique and I agree they can be very dangerous in the wrong hands. Thanks for the update.
Riving knife is 2.3mm and blade is 2.8mm kerf so that allows 0.25mm either side of the cut, which is pretty near perfect. The flush knife is defo worthwhile. 👍
I bought a DW745 in April 2016, and had riving knife problems from new. The RK itself appeared to be straight, but the mounting block for it was at an angle, so that at cutting height, the RK ended up about 1.5 mm to the right. When the fence was on the right, the RK forced the piece I was cutting against the fence with so much pressure, that it was difficult to push through at a steady speed. When the fence was on the left, it pulled the piece away from the blade, so the cut was terrible.
I emailed DeWalt, and eventually sent the saw back to them for repair. A couple of weeks later, I got the saw back with a perfectly aligned RK. I don't know what they did - but I suspect they 'fixed' the mounting block in some way because I think the RK is still straight.
If anyone has a link to where you can get the new RK that doesn't protrude above the blade, a lot of us would be interested ...
Interesting - that's the same as mine. It's the block that's out, not the knife. Sure mine wasn't like that from new. Glad you got sorted! 👍
I have a Ridgid and have the same problem with the RK being crooked since new. As a new woodworker, I didn’t know what was going on at first because like you, I had a lot of problems pushing wood through because the RK was pushing into the fence.
I could not adjust it enough to get it back into alignment. It’s crooked both horizontally and vertically. After watching this vid I pulled the RK and found it is bent. It wasn’t obvious, but after measuring from many angles and shining light around it, it’s definitely bent!
Lol. I thought you were joking with the intro and the hammer. I just got a DWE7485, and the riving knife is misaligned, causing the workpiece to slightly catch on the way through, and maybe throw off the cut? I need to play with it some more. Might need some "percussive maintenance".
My Dewalt 744 does not have any adjustment screws either. I solved the problem by shimming 3 decking cards at the bottom of the attachment plate on the left side ( my riving knife was too far right) and it worked perfectly. No banging necessary.
I had 7470 model and the knife miss align since I changed the blade. Today I almost applied your technic but unfortunately I dont have a big hammer so I remove all knife locking parts out and find out that the knife can be shifted(to the right) by putting 2 washer in the 2 holding nuts. After a couple of tried, the 0.9mm washer thickness made my knife perfectly align with the blade. Thank for your video anyway.
Been using a similar saw for 10's of years, got my thump on the blade Monday, spent the rest of Monday, Tuesday, Wednesday and now going to be Thursday in Hospital trying to get it fixed. I have ordered a riving knife and top guard, even though to my knowledge, the saw has never had one.
Hello , I had the exact same model and same issue. At first I thought of following your approach but i saw some suggestions on using Sims and finally I fixed it with a couple of Sims (those came with the package but not sure for which purpose:))
Great stuff - unfortunately can't fit shims in this version. Hammer fixed it. 😂
got stanley something, same issue gotta try your way though, got several kickback with small pieces but not direct into me, still hate it.
last time i try to fix it, i did clamp the cut-disc with riving knife to set it straight. but when i push wood it stuck.
My early 2017 DW745 looks identical to yours but the riving knife on mine is perfectly aligned. When tilted it does go out of whack slightly with the guard on but not to the extent that yours does in this video. When the guard is off it is fine. Perhaps Dewalt fixed the problem or maybe there were manufacturing defects in some of them but it's nothing a lump hammer can't fix I guess lol.
Mine also came with some thin, rectangular metal parts. I didn't know what they were for but after watching this I now know they are for shimming the riving knife for use with different width blades.
A few people have mentioned these shims - I don't know where you'd even put them on mine! 😀
The 745 has riving knife adjustment screws at the base where the knife mounts. I believe you have 3 locking screws and 2 adjustment screws. Mine was a 2014. I now have a 7480 with the same adjustments. But a hammer works apparently.
I had this issue on my 7491 Model saw and there are 4 allen head screws in the clapping mechanism 2 x 3mm and 2 x 4mm that move the diving knife left and right. could it be that simple on your model?
EXACTLY ,read the fucking book people.
Thanks Ricky - exactly what I was looking for 👌
I see where you're coming from. No amount of caution words will necessarily overcome the power of the image. In this video you showed how important it was to get the riving knife working as intended rather than giving up on it. Even if 'persuasion' was needed... Nice one.
Cheers Norman! 👍
I have the DeWalt DW745 and had the same problem with the rithing knife, and resolved it in the same way with a 4lb hammer.
👍🛠
Also, I made my own zero tolerance throat cover and included a built in blade on it.
Video starts at 4:00
I think I have the same model, but not the same problem. I do currently run it without the knife since I use a sled. Would love to have one that isn't higher than the blade.
I'm going to try the modification that a few people have suggested. 👍
Have the same problem with my Festool CMS. I tried this technique before and it's a bit better but I think I need to bend it a touch more. Or get festool to send me a replacement
At least it's not only DeWalt I suppose! 😂
I noticed the same thing on my 2018 Dw745 and I couldn't find an adjustment method either. Looks like it's the lump hammer for me too!!!
Seems to sort it - amazing the number of people with the same problem! 👍🛠
page 10 of the manual shows how to adjust the riving knife.
Very professional, you have a good conscience
Cheers James! 👍
I have watched your videos and bought a DW745 type 4. If you put the knife on a.flat surface is it straight? Can fix that, if not. Is the blade thinner/thicker than standard? Can fix this with (supplied) shims, if not. The block with spring loaded bolt is fixed with two Allen bolts. Each shim is 0.008” I found the riving knife closer to fence with a standard blade, but with a Freud blade it was closer to the opposite side. So adding shims wasn’t required and/or good for most blades. US version uses a different method with three Allen bolts to change the angle - too complicated as shims move it in/ out but keep it parallel on the UK version. Of course there may be minor changes for type 4 so they could all be a bit different. Great saw BTW.
Knife was flat - now it's bent. This one didn't come with shims or anywhere to put them. 👍
Sods law you are very, very correct.I have watched a number of TH-cam shows on wood working with guards missing and a lot of presenters say its not their problem!!.Video presentation is just like a picture tells what a thousand words can't so people copy what they see.I have had kickback and like you stand to one side but it still got me, my thumb is scarred with oddly enough what looks like my initial,K, so branded by my shop saw and left with a warning. Keep up the good ideas Marra
Yup - kickback is very, very scary. Cheers bud!
Legend says 5 years later he still hasn't gotten to the point
why didn't you use the set screws as per page 10 of the manual?
Yeah always smacking something that you shouldn't with a hammer always does the trick
sparky robin
just get an adjustable spanner close it on the riving knife and pull it in the direction you want to move the knife, no hammer required or dismantle
The steel is so hard you'd risk breaking the aluminium assembly it's screwed on to. 👍
Just got mine today. Set up was easy and everything looks good.....except for the riving knife! It's about 1 mm to towards the fence and is guaranteed to pull my cuts out. This is very annoying. Now got to get the mallet out!!
It's just one of those situations where you're not going to be able to please all of the people all of the time.
Most important thing here, in my opinion, is that you did the right thing first time, mate.👍
I guess there has to be some level of duty of care here, as far as beginners are concerned.
Cheers Bill! 👍
Hi Andy, just used your video to fix my saw. Quick question, I was trying to rip 1 inch marine plywood in half, it needed two runs as it was 20cm high but it started smoking 1/3 of the way. Was this due to no air flow around the blade?
Do you mean 20mm?
@@GosforthHandyman no the piece itself was turned on its side, blade was raised up to its full height
I'd do multiple passes. 👍
Interesting... my DWE749 has the same issue, and can't find any way to adjust.
No clue how it got out of whack in the first place either.
Guess I better get out the BFH ! (once I find the knife.... shhhh)
Out of a matter of interest, have you ever had kickback? I have once and I'm wondering if that's what's thrown it out - sure it wasn't like that from new. 🤔👍
Not with this saw. Mine wasn't like that from new either, and I've been careful of blade thickness.
Had some damp pinchy plywood once but seriously doubt that caused it. Solar storms maybe? LOL
Lol possibly - strange.
When working with a precision tool, I always whomp on it a few times just to show it who is the boss !
Haha! Glad it worked - though I did mine 'in situ' lol! 👍👍
This knife is so hard it would have snapped the housing doing it in situ. 👍😂
I done the same as Keith Brown works a treat.
👍
Hello
I liked the video and the great explanation. I have a question. I would like to replace the saw tray with a better saw tray for a clean cut. I would like, if you will, to describe me with a great saw tray with the specifications you requested. I have the same Deault saw that you have in your workshop. I would like you to write the number and type, and can I get it from Amazon. Thank you and I wish you a nice day, safety and security
My greetings
There is nothing a gas torch can't make better, or worse. That is what I did and it bent nicely.
1:39 much respect 😎
👍🛠
I took mine off. I been using table saws for 20 years. It was making my saw more dangerous with the bent riving knife. Dewalt needs a new feature for the knife on future saws
I made a video on how to align it th-cam.com/video/RcEoti_b3To/w-d-xo.html
Accuracy is a must. I would have disassembled the unit to ensure it was the riving knife that was bent and not the housing. If it was the knife that was bent, I would have purchased a new one.
Housing is out
Another problem that I don't like about this model is that the riving knife is taller than the blade. It limits the cutting abilities.
Yes!!! How do I fix this??
@@lukefranco68 i just remove the riving knife whenever I need to make groove cuts. But I've seen other people cut off the riving knife to the height of the blade.
I ended up cutting it down flush, thanks!
@@lukefranco68 perfect. I didn't cut it since I do groove cuts very rarely
Hitting things with a hammer is my go to for problem solving.
Of course the big hammer is nonsense. You should use a good recoilles hammer, put the riving knive on a absolutly flat surface (an anvil would be good, but a hardwood is ok) and look after every hit, if its ok. Don't use a vise. I had the same problem with my riving knife in my saw. Took me 30 minutes and this guy was so perfect flat and surprise, fits.
Just to confirm, I'm *trying* to bend the riving knife not flatten it! It's the riving knife holder that's out of skew. 😀👍
Have you thought about getting a shirt that fits mate?
Have you considered cutting the slot on the knife that goes over the bolt to hold it on a bit to lower the hight of the knife to the hight of the blade?
It would hit the blade if it was any lower! 👍
Gosforth Handyman dint see that that's why you still have all 10 fingers and I'm down to 8 🤣
home made shims (washers perhaps) could probably be placed behind the riving knife. Works on my Ryobi table.
There's no space - the knife goes in a slot. 🤔👍
4 Adjustment screws are located on riving knife attachment base.
Not on this model.
P Millard is a gangster!
😂🛠😂
had the same problem used a large adjustable spanner it worked
Had a sheet of plexiglass kick back and luckily it only tore my shirt as it flew past me. Scared the crap out of me
There are screws to adjust the riving knife . FIVE of them two at the bottom to fix it and three in a triangular shape to adjust it . DO NOT HAMMER the riving knife.IT is all in the instruction book . Well fancy that.
That's on the newer model. No adjustment screws on the older model. Well fancy that. 😂😂👏
I solved my 1st marriage with a big hammer ….
My knife really doesn't look like it's bent, just, for whatever reason, shifted about the thickness of the blade. Odd.
Sending you good vibes 🙏🤗
Wow, at 1:32, that little bit of pressure on the riving knife makes the saw blade move? 4:35 Precision wood working at it's finest, lol. If all else fails, use a really big hammer ;-)
No, the pressure from the riving knife causes the wood to move away from the fence. But yes, hammer fixed it. 😂👍
I commend you for putting out videos with the safety features attached, but I feel as if you probably did the opposite of what you intended in this case. You showed how crap they are (at least on site saws) and why people will would want to remove them to perform the cut as intended. :p
I very rarely take the riving knife off these days - especially now it's fixed. 👍
Sorry, I meant in the previous video. You were trying to demonstrate that guards should be used, but it was clearly causing an issue due to poor quality (whether is was related to the riving knife or not). So it didn't really help your argument. BUt I totally agree, the safety equipment should be used! .. just next time, have it working properly to help your argument :p ... Glad you have it sorted now though.
Could make Shims by sticking on some Layers of aluminum tape?
Not enough room for shims in mine 👍
Good video, encouraging new starters to use safety guard / riving knife is a great idea. However your message was diluted when you said that when off camera you often don’t. As an aside I do chat your style of videos 👍🏻
I said I 'might' do that off camera - not 'often'... don't think I said often anyway! 👍😀
Must be something wrong with yours then my one is perfect in line with blade ..My one came with the newer Riving Knife its lower then the blade just a bit ..
Sure mine was fine when it was new. 👍
Can't beat a bit of old brute force and ignorance sometimes Mate !!!
Exactly!! 😀🛠🛠
And my riving knife have same problem too
If it's stupid and it works, it's not stupid.
Sometimes, the old irish spanner is all you need to solve a problem. lol (I used a small i so as not to offend my Irish friends)
Also known as a Brummies screwdriver
Exactly - if in doubt... 😀
Hahaha! I watched this thinking he was going to adjust the Riving knife with the screws. OK, I guess I'll keep searching. Just wish he mentioned EARLY on (yakking reminds me of an old girlfriend) how he was going to correct problem. Peace all!
th-cam.com/video/RcEoti_b3To/w-d-xo.html
If a big hammer wont fix it , the problem is electrical .
Exactly! 👍
This one like it's Bosch counterpart are hobbyist saws! Sad to say, I must say my homebuilt table saw is light years better!
Wouldn't say hobby saw - it's really a trades job site saw. There are some REALLY bad hobby saws out there! 😀
DeWalt DWE7485 GB 240V 210mm 1850W is the same. the clearance plate too is shockingly bad. the mitre gauage is terrible too. originally ide bought an evolution cheapo for 130 n had to send it back as my 3 year olds bicep is stronger than that fence
so. i bought the dewalt one model mentioned above and i love yhe fence but fuxk me... why all that engineering if your going to fail on the other faults.
A thin metal shim should do
When u said guess what ! I had my money on it broke lol sorry
Ha - sorted! 😀
I have the same DW745.
It is incredible that someone does not read the manuals, you should never hit something that is already configured at the factory.
The instructions for aligning the ribing knife come in the manual and are 3 small screws with an allen key that adjust for the angle and center this knife. But I repeat never hit things so important and related to safety.
I already located the 3 screws and tightened properly.
Greetings.
I just used some shims .
If in doubt - give it a clout ;-)
Exactly! 😂🛠
just say, bend the roving knife.
done. three seconds, instead of six minutes
If in doubt,bigger is always better! Next time use a sledge hammer!🤣🤣🤣🤣🤣🤣👍👍👍👍👍👍
😂🛠😂
5 mins to say you just bent it?
4:29 🏃♂️
500 quid n riving knife issuses. n dont get me started on that absolute dog shit mitre gauge. the amount of movement wobble is pathetic. 500 quid. i mean.. come on dewalt. sort it out
lots of rambling in this video. did not like
BLAH BLAH BLAH AND STILL A STUPID VIDEO.
Dewalt stuff is over rated,and over priced,!!
Not in my experience! 👍