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critter 
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 Topic: 7000 series axle pusher bolts
Posted: 17 Jun 2020 at 7:35pm |
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I did a search and couldn't find anything, wondering if someone has the specs for the special pusher bolts for the two wedge design on the 7000 series. If I can get the measurements I will make up a set or two.
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SIMPLICITY
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Posted: 17 Jun 2020 at 8:49pm |
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I KNOW THE THREADS ARE NOT A STANDARD PITCH, I BOUGHT A TAP AND DIE NUT TO FIX THE ONES I HAVE
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MACK
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Posted: 17 Jun 2020 at 9:33pm |
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7000 uses different bolts than 7010 and up. MACK
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Calvin Schmidt
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Posted: 18 Jun 2020 at 7:10am |
The two wedge design on 3 5/8" axles and larger have a 7/8" x 12 pitch thread in the wedge. I've had some pusher bolts made in the past and likely should get a batch again.
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critter
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Posted: 18 Jun 2020 at 7:07pm |
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Thanks for the info guys, does anyone know the overall length, length of the threaded area and the diameter of the "shaft" part?
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Calvin Schmidt
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Posted: 18 Jun 2020 at 8:21pm |
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My pusher bolts measure 7" overall. The end 3" is machined to 5/8" dia with 45 degree pointed end. The head uses 1 3/16" socket. You would be wise to buy a 7/8" x 12 tap to clean the wedge threads. Also be generous with the oil on the threads. If your wedges both have thread in the end two holes, get four pusher bolts. I used a 3/4" impact and when all pushers were torqued up, Hit the end of the axle as hard as you can with the biggest sledge hammer that you have. Remember, the wedge doesn't move. You push the cast center off the wedge. My 220 had a custom made dual hub full of crap for years and everything was corroded. I was expecting a long ordeal. After one hit with the sledge, things started to move. Well worth all my preparation .
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Nothing is impossible if it is properly financed
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critter
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Posted: 19 Jun 2020 at 7:07pm |
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Thank you very much for taking the time to measure yours Calvin.
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FREEDGUY
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Posted: 19 Jun 2020 at 7:32pm |
 Calvin Schmidt wrote:
My pusher bolts measure 7" overall. The end 3" is machined to 5/8" dia with 45 degree pointed end. The head uses 1 3/16" socket. You would be wise to buy a 7/8" x 12 tap to clean the wedge threads. Also be generous with the oil on the threads. If your wedges both have thread in the end two holes, get four pusher bolts. I used a 3/4" impact and when all pushers were torqued up, Hit the end of the axle as hard as you can with the biggest sledge hammer that you have. Remember, the wedge doesn't move. You push the cast center off the wedge. My 220 had a custom made dual hub full of crap for years and everything was corroded. I was expecting a long ordeal. After one hit with the sledge, things started to move. Well worth all my preparation . |
Calvin, I've read about the sledge hammer deal with multiple colored tractors. Am I to assume that the "DEVASTATING" blow is up/down on the end of the axel and NOT (forgive me  ) in/out ? If truly smacking down, won't the end of the axel be deformed ?
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DougG
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Posted: 19 Jun 2020 at 7:41pm |
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Usually just takes one or 2 smacks, deformation shouldnt be bad - if so grinder time
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FREEDGUY
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Posted: 19 Jun 2020 at 7:58pm |
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Thanks Doug. On a side note, is there any chance of damaging bearings/seals ?
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Tbone95
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Posted: 20 Jun 2020 at 6:28am |
But you do smack it lengthwise, not downward. I had to move mine on 7045 when I first got it. Right side moved pretty well, thought hey this isn’t so bad. 2 days later I had the left one moved 
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plummerscarin
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Posted: 20 Jun 2020 at 9:14am |
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I had the same issue with my 7045. Left side stuck tight. Broke two bolts on the wedge. Three days later I took on the right side. No issues whatsoever. Only took an hour
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Calvin Schmidt
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Posted: 20 Jun 2020 at 10:14am |
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Hit the end of the axle inward. You are not going to hit it hard enough to do any damage. It's the jar or vibration that breaks the bond between the wedge and the center after you have lots of pressure on with the pusher bolts. Was first told about the sledge trick from a JD service manager after I had broken the flange off a wedge on a 4250.
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Nothing is impossible if it is properly financed
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