First Problem With Grizzly Jointer - Woodworking Talk - Woodworkers Forum
 
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post #1 of 6 Old 12-20-2011, 09:35 PM Thread Starter
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First Problem With Grizzly Jointer

I had a problem with my 2-3 year-old Griz G0452 6" jointer yesterday. I was face jointing some white oak when the cutterhead lost power and slowed to a stop. On further examination it turned out that the motor was still running. The cutterhead would spin back up to speed with no load but stop again when I applied the oak.

So I pulled the back of the cabinet off to find that the belt was still tensioned and the motor pulley was snug. Next, off came the fence assembly so I could look at the upper pulley. It turns out that the setscrews on the cutterhead pulley had backed out and the key had disappeared (so that's why it's been making a noise for a while!)

The good news: No shaft or pulley damage and I found the key intact in the shavings on the bottom of the cabinet. So I reassembled everything (including blue Loctite on the set screws), realigned the pulleys a bit better and it now runs like new.

Is this a common jointer problem? I'm sure that cutterhead transmits some serious vibration.

Bill
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post #2 of 6 Old 12-20-2011, 09:38 PM
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Yep, them noises don't usually go away on there own.

Scott
OH, wait a minute ............Yep!.............That's what he said!

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post #3 of 6 Old 12-20-2011, 09:56 PM Thread Starter
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<<Yep, them noises don't usually go away on there own.>>

I kept telling myself it was the belt slapping around! (Plus it would go away when I put the ear protection on).

Bill
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post #4 of 6 Old 12-20-2011, 10:20 PM
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You got lucky on that fix. Didn't tear the shaft or pulley all to hell.

One fix for those connections, is to use 2 setscrews; tighten one down, then screw another one down. I've seen/used that repair on humongous factory machinery, too.

Harrison, at your service!
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post #5 of 6 Old 12-21-2011, 12:14 AM Thread Starter
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<<You got lucky on that fix. Didn't tear the shaft or pulley all to hell.>>

I sure know it. I had a Craftsman band saw years ago that started knocking. It turned out to be the same basic thing - a pulley loose on the shaft. It was still usable but ugly. This jointer didn't make nearly as much noise, though.

When I saw the keyway on the cutterhead shaft wasn't lined up with the one on the pulley, I was prepared for the worst. I was surprised (and lucky) that there wasn't a mark.

I thought about the double set-screw trick. The ones in there now are medium long and I could probably substitute two shorties for each. We'll see how the Loctite works. Now at least I know what to listen for.

I surfaced a bunch of oak tonight and all went well.

Bill
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post #6 of 6 Old 12-21-2011, 05:50 PM
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Same thing happened on my Grizzly planer. Key came out of the bottom pulley. Reassembled, realigned and it was fine. Now I do a quick check each time before starting up.

Kevin H.
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