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All Replies on normal jointer noise on Grizzly G0490?

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View mc79's profile

normal jointer noise on Grizzly G0490?

by mc79
posted 01-12-2013 03:17 AM


22 replies so far

View Marcus's profile

Marcus

1165 posts in 3024 days


#1 posted 01-12-2013 12:00 PM

Video says its private

View Straightbowed's profile

Straightbowed

717 posts in 3302 days


#2 posted 01-12-2013 01:47 PM

what kind of noise r u havin it’s more than likely your pulleys r not coplaner and the bottom or top pulley is loose that’s about it, if you tried to eyeball it you made a mistake that don’t work my 490 runs smooth shuts down starts up quiet no vibration or unusual noises but it did when I first started it up because the bottom pulley was loose where I moved it around and I also found out that it runs quieter with the pully close to the motor, so sounds like you need to take the back panel off and take a 2 foot straight edge and put it on the bottom pulley and see where your at from there then move your motor by taking off the front base panel so you can get to it easier, move your motor as needed then fine tune by moving the bottom pulley ever so slightly

-- Stevo, work in tha city woodshop in the country

View Straightbowed's profile

Straightbowed

717 posts in 3302 days


#3 posted 01-12-2013 02:00 PM

your bottom pulley is way to close to the end of the shaft it needs to be closer to the motor and you need to get the pulleys coplaner and make sure you have your set screws tight on the botto m pulley that looks like the problem to me it’s a easy fix thats the same deal I went through all you have to do is move some things around and it will run smooth it takes about 1 hour or so to do the coplaner right just sayin

-- Stevo, work in tha city woodshop in the country

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Straightbowed

717 posts in 3302 days


#4 posted 01-12-2013 02:04 PM

I can tell by the pic that its not coplaner

-- Stevo, work in tha city woodshop in the country

View mc79's profile

mc79

23 posts in 3077 days


#5 posted 01-12-2013 03:11 PM

sorry guys, i fixed the video – it is now “public” and can be viewed.

View Dusty56's profile

Dusty56

11863 posts in 4692 days


#6 posted 01-12-2013 04:07 PM

Definitely something loose and possibly out of alignment.
You can see the belt fluttering and it isn’t even under load.
Those serpentine belts are usually so quiet and smooth running , it is hard to see them in motion.

edit:
After watching it a second time , it does appear that the pulleys are not aligned.

-- I'm absolutely positive that I couldn't be more uncertain!

View mc79's profile

mc79

23 posts in 3077 days


#7 posted 01-12-2013 05:44 PM

Thanks guys. What is the best way to align the pulleys to ensure that are on the same plane? Both are about 1.25” wide so do I just try to get the outside edges aligned? I don’t have a true straight edge yet (I have a 50” veritas on the way for table alignment). The problem is I don’t see how i can stick something in there that will reach up to the top pulley and fit in the small space where the belt passes through the top of the cabinet. Anyway just looking for tips on that.

Also, Stevo, you mention that the bottom pulley is too close to the end of the shaft…I hadn’t even tried to adjust anything down there because the manual does not make any mention of it. I figured that part was set up properly since it is part of the motor. I’ll check it out to see if its loose.

View Straightbowed's profile

Straightbowed

717 posts in 3302 days


#8 posted 01-12-2013 09:26 PM

the pulley is adjustable its on a shaft it has a keyway and a set screw if the set is loose and its not coplaner the pulley will self align itself, you can use a straight pc of wood that will work as good as anything to get your pulleys coplaner, please dont assume that this jointer is perfect when it arrives dont assume anything you have to go over it and be sure just sayin, yes your jointer is not cop-laner like I said take the front and back panels off and put some sort of straight edge on the pulleys its easy you can put something across the bottom pulley and then sight to the top pulley but first get your motor over and at least center up the bottom pulley and go from there just sayin

-- Stevo, work in tha city woodshop in the country

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Straightbowed

717 posts in 3302 days


#9 posted 01-12-2013 09:29 PM

it took me several tries on my 490 of course after a few brain farts to get coplaner but I took my time I guess Im tryin to help to much sorry if Im coarse

-- Stevo, work in tha city woodshop in the country

View mc79's profile

mc79

23 posts in 3077 days


#10 posted 01-14-2013 02:01 AM

Ok. After about an hour of adjusting, I think I have it about as good as I can get it. The bottom pulley was loose so I pushed it back a little more onto the shaft and tightened both set screws. I also got the pulleys co planar using the flat edge of a combination square. I had to sort of “tilt the motor up on the side opposite of the pulleys because I think the pull of the belt was lifting that side up more and making the pulleys not coplanar. After doing this, there is no more squeak/vibration while running. (i’m not sure what the hissing sound in the video is but I didn’t notice any noise like that coming from the machine). There is only a little noise at startup and shutdown which I believe comes from the belt. Check out the new video and let me know what you think… Is this thing ready for use?

View JJohnston's profile

JJohnston

1622 posts in 4295 days


#11 posted 01-14-2013 02:02 AM

Private video again.

-- "A man may conduct himself well in both adversity and good fortune, but if you want to test his character, give him power." - Abraham Lincoln

View Dusty56's profile

Dusty56

11863 posts in 4692 days


#12 posted 01-14-2013 02:08 AM

ditto ^

-- I'm absolutely positive that I couldn't be more uncertain!

View mc79's profile

mc79

23 posts in 3077 days


#13 posted 01-14-2013 02:22 AM

sorry try it now. my phone must not upload the settings I select when I upload the video for some reason. should be ok now.

View Dusty56's profile

Dusty56

11863 posts in 4692 days


#14 posted 01-14-2013 03:32 AM

Looks like you nailed it : )

-- I'm absolutely positive that I couldn't be more uncertain!

View Purrmaster's profile

Purrmaster

915 posts in 3097 days


#15 posted 01-14-2013 07:11 AM

Link belts can reduce vibration. You could try using a link belt (Fenner Power Twist or Jason Accu Link) and see if that helps. It helped a bit with my jointer.

View Straightbowed's profile

Straightbowed

717 posts in 3302 days


#16 posted 01-14-2013 12:45 PM

not to bad still a little jerky on shutdown but I think you got it now, make sure to mark your eccentric nuts before you start moving them with a sharpie or a witness mark before you start tuning your tables so you will have somewhere to go back if you get lost, watch the woodwhisperer video on the utube to get a good understanding of how you should begin your table coplaner stroll it’s called the jointers jumpin i think and you will be on your way

-- Stevo, work in tha city woodshop in the country

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Straightbowed

717 posts in 3302 days


#17 posted 01-14-2013 12:46 PM

and don’t use a linkbelt this is a 3 horse motor and a link belt wont do

-- Stevo, work in tha city woodshop in the country

View Straightbowed's profile

Straightbowed

717 posts in 3302 days


#18 posted 01-14-2013 12:55 PM

going to bed goodnite have fun with your new toy

-- Stevo, work in tha city woodshop in the country

View DrPuk2U's profile

DrPuk2U

81 posts in 3296 days


#19 posted 01-14-2013 04:09 PM

Loks like you have it solved, but I will add my two cents. When I got mine I had a lot of difficulty getting the pulleys both coplanar and the shafts parallel. The manual says just loosen the bolts and let it settle on its own. hah! I finally got it both coplanar and parallel but it was a fair amount of hassle for one person.

Once I did have it set correctly I was still seeing two problems:
- there was a fair amount of vibration of the belt
- there was a fairly loud “thump” as it came to a stop.

I consulted with Grizzly tech support and they were prompt and helpful. They suggested the belt might be warped so they sent me a new belt. My son and I installed the new belt and tuned it up over Christmas and it now runs smooth and quiet.

As for the thump, this is what Grizzly Tech support said:
“Regarding the sound as the machine is coming to a stop. The sound and rapid decrease in speed is caused by electromotive force. Essentially, as the motor continues to turn, it creates a magnetic field, similar to when it is running, and will rapidly decrease in speed and make a louder “thunk” sound. This is completely normal and nothing to worry about.”

-- Ric, Western Oregon, "Design thrice, measure twice, cut once... slap forehead, start over"

View Dusty56's profile

Dusty56

11863 posts in 4692 days


#20 posted 01-14-2013 11:18 PM

Linkbelts can not be used on this type of pulley …they are for V-belt pulleys..

-- I'm absolutely positive that I couldn't be more uncertain!

View Straightbowed's profile

Straightbowed

717 posts in 3302 days


#21 posted 01-14-2013 11:40 PM

I agree with dusty now find a good straightbowed board and joint the heck outta it

-- Stevo, work in tha city woodshop in the country

View dlee525's profile

dlee525

2 posts in 2358 days


#22 posted 01-01-2016 01:42 AM

Sorry to bring this back from the dead, but my 490 usually sits in the garage with little use. Every few months I’ll start it up and the belts will come out of alignment again, and I’ll need to spend time getting it lined up again. Anyone else having this problem, or has anyone figured out a way to make sure it does come out of alignment from sitting there? Thanks

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