750A seed boot bolts

Discussion in 'Direct Drilling Machinery' started by Howdenshire Farmer, Jul 9, 2019.

  1. Having developed some play in the seed boot mounting bolt holes of my 750A I have got a Drillfix kit from Shoup. However, there is a problem. The kit is designed for 3/8" bolts but the bolts on my drill are thicker than this (7/16" I think). Obviously the holes in the boot itself are designed for the bigger bolt but they won't go through the hole in the new bush. The new 3/8 bolts obviously fit through the bush but are a very loose in the holes in the boot.

    I am currently exchanging emails with Shoup to figure out what is going on. They say that as far as they know all drills have 3/8 bolts.
    Who else has used the Drillfix kit (I think it is also known by other names) and what size bolts did you use?
    I know Angus has used them without problems.
    Does anyone else happen to know the size of the bolts in their drill?
    @Simon Chiles
     

    Attached Files:

  2. Tractor Boy

    Tractor Boy Member

    Location:
    Suffolk
    I haven’t used a kit as mine aren’t worn up but I’m literally changing the seed boots at this minute and my bolts are definitely like the larger 7/16 black bolts in your photo.
     
    Howdenshire Farmer likes this.
  3. Thanks TB
     
  4. Can you just buy metric bolts to fit?
     
  5. The bolts need to be thin enough to go through the bush in the coulter arm holes (3/8) but the holes in the boots are 7/16.
    Need bolts with variable thickness!
     
  6. 155tm

    155tm Member

    Location:
    Kent
    Morning Richard 90 series seed boots on my drill which must use the smaller 3/8 bolts. What year is your drill? I didn't think it would be on the new re-designed pro series coulter & seed boot? (if they have a larger bolt...?)

    & you have had it since new? So would know if it had been drilled out for different size bolts....?

    One of the other repair kits does use a bigger bolt, I think Clive used that kit on his first 750a.

    No answers, more questions!
     
    Howdenshire Farmer likes this.
  7. Morning Guy.
    My drill is a 2016 model and I have had it from new.
    All 3 holes in the arm are the bigger size so it must have been made that way.
    I have just bought some 3/8 to 7/16 bushes to fit in the holes in the boot so the thinner bolts will be a good fit.
     
  8. Clive

    Clive Staff Member

    Location:
    Lichfield
    I didn’t use the kit - drilling the oval hole round isn’t easy so we had ours milled out and bushed by a local machine shop - made our own bushes and bought bolts
     
    Howdenshire Farmer likes this.
  9. Could always try these...
     
    Howdenshire Farmer likes this.
  10. 155tm

    155tm Member

    Location:
    Kent
    hmm horrible feeling the really early drills had a smaller bolt (two piece seed boot type possibly)

    let me measure a spare bush in my kit & get back to you
     
  11. That is a clever idea but I've already shelled out enough on this kit.
     
    cows sh#t me to tears likes this.
  12. 155tm

    155tm Member

    Location:
    Kent
    If a picture comes with this post

    Or I might go back to Twitter to post you a picture of a bolt that suits my bushes & seed boots without modification. ‍♂️
     

    Attached Files:

    Howdenshire Farmer likes this.
  13. Issue now resolved.
    The person I originally dealt with at Shoup failed to tell me that there are two versions of the kit. He should have checked that I ordered the correct one. It isn't obvious from their website, so I didn't know.
    They are now sending the correct kit foc and were very apologetic.
    I'm happy with the service in sorting it out as they have done all they can to help.
    If anyone should need a kit to suit 3/8" bolts then get in touch. Although I'm keeping it until the replacement arrives.
     
    155tm likes this.
  14. 155tm

    155tm Member

    Location:
    Kent
    So 0.425 on a used bolt. that was more likely to have started out life as a 0.475 = 7/16 than a 3/8 = 0.375. That means my horrible thought that the early drills used a 3/8 bolt & Shoup have sent you a batch of early rather than late bushings is probably the problem...... They must be able to supply the larger bushes because I have got them!
     
    Howdenshire Farmer likes this.
  15. Ive got the old style genuine 750 and could be interested in the old kit.
     
    Howdenshire Farmer likes this.
  16. I'll let you know once the new ones arrive and I am happy with them
     
    SilliamWhale likes this.
  17. Tractor Boy

    Tractor Boy Member

    Location:
    Suffolk
    How many acres has your drill done. My 2016 4m has just had its first set of new boots and fourth set of discs. I reckon it’s done 2700 acres or thereabouts . As yet the seed boot bolt holes are still hardly worn.
     
  18. 2016 3 metre. Done around 15-1600acres. On it's second set of discs. Original boots.
    The wear is partly the bolt but mainly the holes in the coulter arm.
     
  19. The replacement kit has arrived with bigger bushes, new bolts and the jig to suit. Despatched on Wednesday.
    Can't complain about the service from Shoup.
    The 3/8" kit is now available. 18 bolts and bushes and the drilling jig.
     

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