Dempster turn table bearing

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grezmonki

Dempster turn table bearing

Post by grezmonki »

Lubricating late model Dempster 12A turntable bearings are easy because they usually have a zerk on them - fire away and good to go. The #12 model doesnt have the zerk, although they do have a hole on the side of the cap that seems like I should be able to spray some chain oil into it to lubricate the bearings, but the top edge of the cup blocks the hole. I take the little straw that comes with the spray lube and try to stuff it in where I think i'll get some in the cup, when I push the nozzle about 99% of the oil comes spraying back at me, I gotta hope that 1% actually made it in the cup. So, what's the real way of keeping that bearing mantained?
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windybob
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Re: Dempster turn table bearing

Post by windybob »

Take a bar and pry up under the tt top a little. Spray away. When the turntable drags, even with new balls, replace a few with 11/16 balls. 6 for 6 ft, 8 for 8 ft.

Look on the cup.....you will see a casting line about 1/8 or 3/16 down. Take a grinder and cut the top of the cup off at about that line, and do the inner ridge about the same. Keep several on the truck. Now, 5/8 ball replacement will last forever. When you change out a head.
Call Dan Benjamin for parts. P M me for the phone number. IF YOU TALK TO HIM, AND HE HELPS YOU, THEN BUY FROM HIM. IT CREATES GOOD KARMA.
grezmonki

Re: Dempster turn table bearing

Post by grezmonki »

Hey, I never thought about prying up a little to get the lube in there. I will give that a whirl!
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windybob
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Re: Dempster turn table bearing

Post by windybob »

T.J. showed A.C. how to do that, and she told me. Straight from Shattuck. lol
Call Dan Benjamin for parts. P M me for the phone number. IF YOU TALK TO HIM, AND HE HELPS YOU, THEN BUY FROM HIM. IT CREATES GOOD KARMA.
CTXmiller
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Re: Dempster turn table bearing

Post by CTXmiller »

You talking about prying it up enough to get grease in there or a spray of graphite or similar lubricant? Guess I can do that too to my WB turntable. Thanks
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windybob
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Re: Dempster turn table bearing

Post by windybob »

Yes . and no you can't do that on the Monitor. However the Monitor has a grease cup on it you can take out, and with a regular 1/8 to 1/4 adapter, you can put a zerk in it.
Call Dan Benjamin for parts. P M me for the phone number. IF YOU TALK TO HIM, AND HE HELPS YOU, THEN BUY FROM HIM. IT CREATES GOOD KARMA.
CTXmiller
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Re: Dempster turn table bearing

Post by CTXmiller »

Windybob - Thanks.
Terry
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Re: Dempster turn table bearing

Post by Terry »

I cant take all of the credit for that trick. Kevin showed it to me. But that was at Shattuck. I thought what you learned at Shattuck was to stay in Shattuck? Oh well.
TJ
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Kevin
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Re: Dempster turn table bearing

Post by Kevin »

Never miss a chance to lubricate or rebuild a turntable!
Sometime you can lift the windmill up a little by undoing a storm stay or mast pipe nut and clamping or wedging something on the pump rod or yoke and turning the wheel a little to lift up the motor a hair. Just take the pressure off and get a needle tip of lubricate in there.
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Kevin
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Re: Dempster turn table bearing

Post by Kevin »

As Terry said, “I thought what you learned at Shattuck was to stay in Shattuck”
But for the benefit of all. From the long list of lesson learned in Shattuck:
Just FYI, thinking about this makes me suffer from P-T-R-T. (Post Turntable Repair Trauma )

Rule 1. If the windmill can’t turn out of the wind, it’s going to fail.
Rule 2.Turntables and storm stays that drag are conspirators in Mother Nature’s foul treachery to remove any devices that dares to catch her wind.
Rule 3. If you rebuild a turntable, don’t put it together and show everyone how easy it spins holding it your hands. After it is all together, have the biggest person around stand on it and then spin him around.
Rule 4. If you don’t follow rule three, don’t rebuild five or six turntables and spend all day installing them or you will find out that the added weight of the windmill compresses the turntable and it drags more than when your started.
Rule 5. Don’t tell people that the reason you’re are taking the same six windmills back down again is, “It was so much fun you decided to do it a few more times.”
Rule 6. (Very important) Secure the top and bottom of the turntable together with tape, string or wire before you try and install it. Otherwise, you will find yourself crawling and blabbering on the ground or in one case, under the seats of Windy’s truck looking for bearings after the top and bottom come apart.
Rule 7. The new zerk fitting you epoxied into the rebuilt turntable should be accessible after the windmill motor is installed.
Rule 8. This is critical if you are in Shattuck OK during work week. Do not, I repeat, do not set your rebuilt turntable on the floor and ask a big guy from Kansas to stand on it and spin. (Let’s just say by the time he gets his ballet slippers on and he goes through all his ballet tutu’s to find a match set, you will miss supper.)
Rule 9. If you have a guy from Kansas stand and spin on your rebuilt turntable, do not hand him his cherry blossom pink shoes with his champagne pink hat or you will never hear the end of it.
Rule 10. When the Kansas guy kills me, please remember I like pink carnations flowers.

Maybe P-T-R-T. is not “Post Turntable Repair Trauma” It might be “Post Terry Repertoire Trauma”
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