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New Jet Lathe - Grinding/Clicking Noise

7.2K views 47 replies 11 participants last post by  builtinbkyn  
#1 · (Edited by Moderator)
So yesterday I finally fired up my new Jet 1221. With nothing mounted but the faceplate, I expected to hear a cool whirl and humming sound. Unfortunately that wasn't the case. There was a noticeable grinding noise accompanied by an intermittent clicking or knocking. The machine on slow speed ran silently until the speed was increased.

So with some tools in hand I went about trouble shooting it myself. Removed the faceplate and live center, thinking maybe one of them were not seated right. Then I pulled the handled. Still the same noises. I then moved the belt to another speed setting and still the same. To my ear, it sounds like bad bearings.

Next step was a call to Jet. The tech, after hearing the noise thru the phone, had me go thru the same paces I had already done as the noise wasn't usual. He then had me pull the belt and run just the motor. No noise was heard. He also had me loosen and tighten the set screws on the pulley in specific order- keyway first followed by the opposite side. Still the noise persisted. He informed me that since I purchased the lathe thru Amazon I would have to deal with them if this was in the first 30 days. However he did tell me that once a second call was placed, they would deal with it. That made me feel a bit more confident Jet wouldn't just make the claim that since it's spinning true and working, the noise is incidental.

I'm pretty confident a bearing or even both bearings are the culprit. I pulled the shaft and even though they don't make the grinding noise when spun by hand, the belt tension could surely influence this situation if the bearings were faulty.

This is a pretty basic design. Nothing complicated about it. What I'd like to do is replace the bearings with higher quality bearings rather than wait the 30 days and then make the second call to Jet. I know it's additional expense, but it's also my time and heck, if the bearings they're using aren't all that great - I believe they're NSK - sizes are 20Ă—42x12 -NSK #6004vv and 25Ă—47x12 - NSK #6005vv. Not being familiar with bearings, is there a better type of sealed bearing for this? Cylindrical bearings vs the ballbearings used? I suspect Jet went middle of the road and would actually prefer better if available.
 
#27 ·
OK just read reviews for this authorized repair shop. It ain't going there. One guy says his pin nailer has been there 3 months. Another guy says he dropped off a compressor months ago. No return phone calls. Lots of one star reviews. :( Do companies that authorize these outside agents check to see if those they've authorized perform and on what schedule?
 
#28 ·
I'd call them up, explain the situation, and see if they could schedule an appointment for you to bring the machine in and have the work done at that time with you waiting. If they know what needs to be done, and have the parts in hand before you show up, it should not take them very long, and it will maintain your warranty. Maybe you could even supervise the work :)

Just my half cent.

Cheers,
Brad
 
#29 ·
I d call them up, explain the situation, and see if they could schedule an appointment for you to bring the machine in and have the work done at that time with you waiting. If they know what needs to be done, and have the parts in hand before you show up, it should not take them very long, and it will maintain your warranty. Maybe you could even supervise the work :)

Just my half cent.

Cheers,
Brad

- MrUnix
IDK Brad. First it's not a mile from me. It's in another part of Brooklyn. The area it's in has no parking and the traffic in that area is a disaster. Second, their record posted online is horrible. I'll check to see if there's another "reputable" center in my area.
 
#30 · (Edited by Moderator)
Sounds like a raw deal all the way around. Seems like the best option would be for them to send you some new bearings and do it yourself, although that might not actually be the problem - so you could wind up taking it to them anyway - or just getting your money back and looking for something else. Maybe call Jet back and run it up the chain of command. The initial tech guys usually have very little flexibility in what they can do, but you could probably get a supervisor or manager that will be more helpful and willing to work on a reasonable solution with you.

Cheers,
Brad
 
#32 ·
Just my two cents. I would send it back. Shipping would be at their expense or I would take them to small claims court to recover the cost. You should not have to diagnose a significant problem such as this with a brand new machine. Your video documentation is all you would need to prevail. Amazon or Jet, someone needs to make you whole again. You purchased a Jet lathe through Amazon and it is defective. Bottom line….. it is defective. One or the other of the two parties involved should bear the responsibility. If you bought it with a credit card I would immediately file a dispute.

Send it back. You should not have to repair it yourself.
 
#34 ·
Well …............ yup. But unfortunately I wasn't 100% sure the lathe shouldn't sound as it does until I posted the video here to confirm and asked Jet to confirm as well. I was also making stuff in the shop while this transpired. That was more important and more fun :)

Ah I guess cars that cost tens of thousands more can be lemons too. Thankfully this isn't the case ;)

It would have taken less time to send it back than you ve spent making videos, calling Jet and posting about it. Or you could have changed the bearings and been done with it. Now you re talking about going to a service center.

- Rick M
 
#35 ·
You can do it online. Go to Amazon.com
Click on "Orders" in the upper right side of your screen
Scroll down the lathe and click "Return or Replace Items"
It will ask, "Why are you returning this?". Choose, "Item defective or doesn't work." Describe the problem, something like, "Lathe has bad bearing." Click continue and choose "Replace" or "Refund". Keep clicking through the prompts and it will display a return label + a return authorization to put into the box. Box it back up and drop it off or call for a pick up.

If you really don't want to return it for some reason: (I can't promise this will work but they have done this for me) start an Amazon Chat, explain the situation and ask for credit to buy new bearings. They will ask how much the bearings cost (have them in your cart ahead of time) and may issue you credit or gift card for the amount including shipping and tax.
 
#36 ·
I contacted Amazon and they are replacing the lathe and included expedited shipping for the inconvenience of having to deal with this.

I hope the replacement doesn't have the same issue as I did find another review where they described exactly what I have been experiencing. Also, when that person called Jet, they were taken thru the same steps in an attempt to remedy the situation. In the end, they also sent the unit back for another. Unfortunately they didn't respond back as to whether or not it the new unit was ok and worked as it should.
 
#37 ·
I just received my jet1221 on 4/20/17. My lathe sounds exactly like Builtinbkyn's.Mine also has a slight vibration. Took it to a Jet repair dealer. Their repairman was out on sick leave, so someone else looked at it and said that it was supposed to sound like that. yeah sure, I worked in a machine shop for thirty years, it's not supposed to sound like that. I took it home and called Jet, again. Like Brooklyn, I don't want to send it back if I don't have to, I'm old and it 's heavy. Jet is going to send me some spindle bearings. I hope it works. I have a feeling it will be going back. Maybe Brooklyn will let us know how he made out with his replacement.

Tom
 
#38 · (Edited by Moderator)
I just received my jet1221 on 4/20/17. My lathe sounds exactly like Builtinbkyn s.Mine also has a slight vibration. Took it to a Jet repair dealer. Their repairman was out on sick leave, so someone else looked at it and said that it was supposed to sound like that. yeah sure, I worked in a machine shop for thirty years, it s not supposed to sound like that. I took it home and called Jet, again. Like Brooklyn, I don t want to send it back if I don t have to, I m old and it s heavy. Jet is going to send me some spindle bearings. I hope it works. I have a feeling it will be going back. Maybe Brooklyn will let us know how he made out with his replacement.

Tom

- woodenshoes
Hey Tom. Sorry to hear that. The replacement arrives tomorrow. Not sure I'll get to the shop, but I'll keep you posted. Seems odd that some reviewers of it say it's quiet and smooth. I wonder if that's true or if they have a hearing problem. Maybe it's a run of the machines that came from a different source. Ah well if this one is the same, I guess I'll go with another machine. Maybe the Rikon.
 
#40 ·
Hi Bill,
I also have a Jet 1014 and it sounds nice and quiet , that's why I was stunned when I flipped the switch of the 1221. I bought this one from CPO, but from the Amazon web site. I'll try the bearings first if they don't take too long to get here. I hope that your replacement runs smooth. This lathe gets great reviews, lets hope that you and I don't have to give it one star. Please post on the replacement. Tom
 
#41 ·
Just watched your video and noticed little flakes of aluminum dusting on the index pin, is there any chance the pin is hitting the index ring. you probably already checked that, but just my observation, good luck

- Lee
Hey Lee. Wish it was the case, but it wasn't. I think those flecks are the paint used on the housing. The indexing pin is spring loaded so it stays retracted unless threaded into the housing.

The new lathe arrived tonight. Had expected it tomorrow, so …..... we'll see tomorrow. I have to say the UPS guy wasn't all that careful when unloading it. I'm sure these things get mishandled all along the way, which certainly doesn't help.
 
#42 ·
After finding gouge and burr on the bottom of the spindle housing, I replaced the bearings, with the new ones sent by Jet tech, and the lathe is quite and runs smooth like it should have been when taken from the box. Jet tech support was very good but the manufacturer needs better quality control.
 
#43 ·
After finding gouge and burr on the bottom of the spindle housing, I replaced the bearings, with the new ones sent by Jet tech, and the lathe is quite and runs smooth like it should have been when taken from the box. Jet tech support was very good but the manufacturer needs better quality control.

- woodenshoes
Hey Tom. Good to hear that. My new lathe showed up and is in the shop, but haven't had the time to unpack and run it. I'll get there tomorrow to do so.

As for the burr - which side was the burr on? The drive side or the work side? Do the bearings appear to be the same as those that came on the machine?
 
#44 ·
Hi Bill,
The gouge and burr was on the drive side, it looked like it was damaged during machining, so probably the bearing wasn't able to seat properly. Since they sent me new bearings, and they seem to be the same ones that came with the lathe, I put the new ones in.

When I first got the lathe I bolted it down to the workbench as suggested, but if there was any vibration, and there was some because of the problem and out of roundness, the vibration transferred to the workbench. Things started falling. I saw on u-tube where you can make rubber feet. Go to Lowes and get 5/16 -18 elevator bolts, I cut a flat piece of 3/16 rubber to the size of the bolt head and epoxy them to the heads. They work great and you can level the lathe at the same time.

I hope that you replacement lathe is good. I guess most people don't have the problems that we've had with them. Good luck.
 
#45 ·
Hi Bill,
The gouge and burr was on the drive side, it looked like it was damaged during machining, so probably the bearing wasn t able to seat properly. Since they sent me new bearings, and they seem to be the same ones that came with the lathe, I put the new ones in.

When I first got the lathe I bolted it down to the workbench as suggested, but if there was any vibration, and there was some because of the problem and out of roundness, the vibration transferred to the workbench. Things started falling. I saw on u-tube where you can make rubber feet. Go to Lowes and get 5/16 -18 elevator bolts, I cut a flat piece of 3/16 rubber to the size of the bolt head and epoxy them to the heads. They work great and you can level the lathe at the same time.

I hope that you replacement lathe is good. I guess most people don t have the problems that we ve had with them. Good luck.

- woodenshoes
Thanks for the info Tom. I purchased the Jet stand and the lathe is bolted directly to it. They didn't supply rubber feet so I assume they aren't required. I'll be setting up the new lathe and report back. I have to re-box the old one and return it ;(