Replies

1. 
   JohnWW | Nov 26, 2003 03:26am | #1

   Rick,

   Noise like you are describing is abnormal, the Jet should run as quietly as the Delta.  Something is broken, worn out, or manufactured incorrectly and you are only beating up the machine badly by running it while it is obviously malfuntioning.

   There are several possible causes, you need to look at the drive system and check the bearings in the head.  The most likely causes are fairly easy to spot.  You need to learn how to service and troubleshoot your machinery, or you are going to be wasting the money you invest in it.  That jointer, with very little maintenance, should easily last a lifetime and be smooth running.

   The half inch plywood is thin for a machine of that size, it is probably adding to the vibration.

   John W.

   
   

   ---

   Edited 11/25/2003 7:40:00 PM ET by JohnW

1. 
   uncommontree | Nov 26, 2003 07:17am | #6

   J.W.

   Thank you for the advice. This is not a motor noise or a bearing noise but rather a vibration in the stand itself. when I place my hand firmly on the bed or base when the machine is running it will quiet down. I just replaced the bearings in the shop uni-saw ,there was some serious bearing noise. This noise in the base was present loud and clear before I placed it on it's new Mobile base. I will nut and bolt it tomorrow , there could be something loose inside the base that I cannot readily see. Thank you again. Rick.

1. 
   mike4244 | Nov 26, 2003 08:12pm | #13

   Check the bolts  that connect the stand to the jointer base. When you lean on the table does the vibration get better or stop altogether? Sometimes the cause of vibration is in the cover behind the fence that houses the shaft pulley, it may be loose. I do not recall if the Jet has this cover or some other configuration. I doubt whether your mobile base is the cause, sounds like the base to stand connection.

   mike

2. 
   forestgirl | Nov 26, 2003 03:33am | #2

   Rick, I'd call Jet 'twere I you and talk to one of their techs.  I have a Jet 6" jointer, and it's pretty quiet.  If you don't have the Phone#, let me know -- I'm at work now, but can post it after I get home.

   forestgirl Another proud member of the  "I Rocked With ToolDoc Club" .... :>) -- you can take the girl out of the forest, but you can't take the forest out of the girl   ;-)

1. 
   koikid | Nov 26, 2003 03:41am | #4

   At WORK? on Knotts....Is that really in your job description?

1. 
   forestgirl | Nov 26, 2003 07:05am | #5

   My own business, LOL.  I can do anything I want, as long as I'm dressed and sober.forestgirl Another proud member of the  "I Rocked With ToolDoc Club" .... :>) -- you can take the girl out of the forest, but you can't take the forest out of the girl   ;-)

1. 
   koikid | Nov 26, 2003 07:23am | #7

   as W.C. Fields once said: Aha yes, I forgot my corkscrew and was compelled to live on food and water for several days! Now that's a sobering thought!

2. 
   BrianMcG | Nov 27, 2003 08:03am | #16

   Dressed and sober? Now that's no fun!!

1. 
   forestgirl | Nov 27, 2003 08:55pm | #18

   Sad but true.  What can I say when the majority of my clientele are under the age of 12, LOL!!  Once or twice a year, when I've had a super-stressful day, I yearn for a cocktail at lunch.  Little voice says "No, no Jamie, the parents will notice."  Too funny.forestgirl Another proud member of the  "I Rocked With ToolDoc Club" .... :>) -- you can take the girl out of the forest, but you can't take the forest out of the girl   ;-)

2. 
   uncommontree | Nov 26, 2003 07:27am | #8

   Thanks F-G,

   I could use the number. They may also have an idea as to what is the cause of this noise. Something is not coming unglued but a very annoying vibration a loud humming noise which is lessoned by pressure on the stand itself. I might have to break out the duct tape.If ya can't fix it with that, game over. Thank you again . Rick

1. 
   RANGERP75R | Nov 26, 2003 07:39am | #9

   Rick

      Check the pulley alignment and make sure the belt has not crystalized from over-heating. Take a bar of soap and rub the belt on the inside portion that touches the pullies. If it quietens down, its a belt slip, pulley mis-alignment or combination of both. If not, look elsewhere.

   Luck...

   sarge.jtProud member of the :  "I Rocked With ToolDoc Club" .... :>) 

2. 
   forestgirl | Nov 26, 2003 07:40am | #10

   Here it is Rick:  1-800-274-6846If I remember right, they have a very long voice-menu thing (grrrrrr).  I have another number, same first part, then -6848 that I've indicated is "Sales/Customer Service" -- that might be easier.  Then ask for Technical Support.  Good luck!forestgirl Another proud member of the  "I Rocked With ToolDoc Club" .... :>) -- you can take the girl out of the forest, but you can't take the forest out of the girl   ;-)

1. 
   uncommontree | Nov 26, 2003 07:51am | #11

   F-G and SARGE'

   Thanks for the number, I will try the soap on the belt, if no , I will give JET a call and see what they have to say. Thank you again. Rick

1. 
   RANGERP75R | Nov 26, 2003 05:20pm | #12

   Rick

      Just one more thought. Make sure the table bolts that connect it to the base haven't backed off.

   sarge..jtProud member of the :  "I Rocked With ToolDoc Club" .... :>) 

2. 
   uncommontree | Nov 27, 2003 12:48am | #14

   Hi SARGE,

   Thanks for the tip,Mikek4244 had the same idea. I was not able to nut and bolt the jointer today,was on or looking at 4 jobs + had to pick a fresh turkey 3:00 this afternoon . Its a 29 lb monster. I will be in the shop on Sat. so I will go over all of the jointer than. It could very well be a loose bolt doing a dance in the base. Thank you  again . Rick

3. 
   RANGERP75R | Nov 27, 2003 08:08am | #17

   Rick

      When you said you put your hand on it and it got quieter, that was a tip that you should at least check. I had a starter bolt work loose on a Austin-Healy 3000 back in 1971. It was bouncing against the side of the block. I thought it had slung a rod, but the oil pressure gauge was sitting on 60 lbs.

      Quick check and a wrench and on the way. It could be something else, but that and pulley mis-alignment would be the first things I checked from the symtoms.

      If the allen head screw on the pulleys is loose and they are out of line, the belt will squeal as it's not tracking properly. That would also produce bounce. It puts un-due pressure on the shaft bearing and won't take long for them to fail as they will over-heat from friction.

      BTW, what time do we eat tomorrow? ha..ha..

   sarge..jt

   Proud member of the :  "I Rocked With ToolDoc Club" .... :>) 

   Edited 11/27/2003 12:19:04 AM ET by SARGE

4. 
   uncommontree | Nov 30, 2003 06:45am | #19

   Hi SARGE,

   Sorry to say that I did not get a chance to run to the Shop today. Just got back a little while ago. Inga's Grandmother passed away last week so we needed to go down to Chicago to settle her affairs. I was fun running the new HEMI down I-90 and seeing Inga's 3 year old niece but other than that it was kind-of a bummer. My good buddy JT has a 1951 Healy, having the tranny rebuilt as we speak. Really cool car except maybe for the "Prince of Darkness" He would like to rip all of that crap out, except the car is all original, even the paint. I will check all of the things you listed and get back to you ASAP.Your Pal Rick.

   Edited 11/29/2003 11:00:32 PM ET by ADESIGNS

3. 
   koikid | Nov 26, 2003 03:38am | #3

   Rick   Not hearing the sounds it is kind of just a guessing game.  1st thing to do to diagnose the problem, there should be a cover on the base that can be removed to get to the motor and belt. Unplug the machine from the power source, remove inspection plate.  Remove the tension from the motor so you can pop the belt off the motor pulley,  Then with your fingers give the motor a spin to see if you hear any rubbing or unusually noise. Check that the pulley is tight on the motor shaft, key still in slot and set screws tight.  if that checks ok then move to the cutter head pulley and check it and that it spins the cutter head freely making sure your hands are clear of the blades.  Inspect the drive belt for cracks or frays.

   If all that checks ok then its time to power up the motor by it's self and see if any odd noise comes from just the motor under power. (Depending how the motor is hinged? you may have to prop it up before turning it on so pulley doesn't rub on anything.)  If still ok remove power cord from power and reinstall the belt and see that it is tensioned ok and the belt tracks straight and doesn't rub on one side of the pulley.  Turn it a few times by hand and if ok then re apply power and see what you have.   Could be some of the base parts, bolts,screws, brackets coming loose ??

   Good luck  Marsh

4. 
   BrianMcG | Nov 27, 2003 08:01am | #15

   Hi, I have the Jet 6" open stand resting on a HTC mobile base and have not had a noise or vibration problem...Nice higher pitched hum is about all.

   That probably doesn't help you one bit but I thought I would toss it in. You may toss it right back out if you wish.

   Happy T-Day!

   Brian

5. 
   bill_1010 | Nov 30, 2003 07:06pm | #20

   take it off the base and if it still vibrates your belt might have a flat spot. If you take the jointer off the base and it quits vibrating youve found your problem.

   was your HTC base made to fit the jointer?