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Wanted Suffolk Punch spares.

Discussion in 'Wanted' started by Gramaisc, Jul 18, 2017.

  1. Gramaisc

    Gramaisc Forum O. G.

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    If anybody has a deceased, fairly modern Suffolk Punch mower, then I am in need of a couple of parts.

    The roller driveshaft bearing support casting has broken, and it seems a difficult part to obtain.

    The light alloy casting seen in these two pictures.

    [​IMG]

    [​IMG]


    Also the plastic side cover would be nice, I've already had to repair this one.

    [​IMG]


    I have the spare machine running now, but it would be nice to have both serviceable again.
     
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  3. littleme

    littleme 250,000th poster!

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  4. Laurie61

    Laurie61 Well-Known Forumite

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  5. Gramaisc

    Gramaisc Forum O. G.

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    Mmm, it's actually rather thin where the break is. It's a very poor design. For almost the same cost, it could have been much better. The loading is quite high at times. I might be tempted to epoxy an unbroken one, to buttress it up a bit, if I can keep the screw holes clear.

    On the green plastic side cover, there is quite a strong spring pushing the black height adjuster disc outwards, to lock it each setting. I've put a couple of self-tappers in the bottom edge, to give it a chance. I might also do that to preempt the 'new' one doing it, as well.

    If only the foundry was still there, in B&Q car park....
     
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  6. Laurie61

    Laurie61 Well-Known Forumite

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  7. Gramaisc

    Gramaisc Forum O. G.

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    I have tracked down a new spare - it arrived just now - it's a much improved casting, suggesting that I may not be the only victim of this mode of failure. I'll fit it over Christmas.

    [​IMG]
     
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  8. Gramaisc

    Gramaisc Forum O. G.

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    Old, broken casting on the left - new casting on the right. I have a bit more faith in the new one - rather thicker ribbing and the web at the top, where it matters, is about three-, maybe four-times thicker - you can see the 'step' where the thickness increases, just above the number.

    The sintered bearing was very tight - it'll take a little running in, which is unusual, but welcome, these days. I warmed up the bearing and soaked a load of grease into it. I'll run it in the morning, but I don't anticipate huge problems.

    [​IMG]

    Interestingly, the better casting is DDC1, the flimsier one is DDC2 - makes me wonder if some bright spark decided to save a ha'penny..?
     
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  9. Gramaisc

    Gramaisc Forum O. G.

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    I fired it up just now and found that the roller wouldn't turn when it was being pushed in 'idle', due to the tight drive spindle in the new bushes - not a great surprise.

    Five minutes with the drive engaged and the roller supported up off the ground has run things in very nicely.

    Hopefully that is it sorted for a few more years now.
     
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  10. stoofer34

    stoofer34 Well-Known Forumite

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    Nothing like an Engineering education ! How did you know how to do that dad? 60's Secondary Modern ( Technical Drawing,Woodwork,Metalwork)

    I might have been set that as a project even the casting! (We did set the wood block floor on fire!)

    S
     
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  11. Gramaisc

    Gramaisc Forum O. G.

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    As mentioned elsewhere, I dropped the cut on the mower today. This resulted in it finding a stone and breaking the drive belt for the cutting cylinder.

    Not their fault this time, and the belt is around fifteen years old now and, being a 'jockey wheel clutch' arrangement, it was wearing a bit thin, anyway.

    A quick phone call to an agricultural spares place half a mile away resulted in an arrangement o present myself at the door with the broken belt. I returned with two new ones - a spare, and a spare spare - they only break when you're using them...

    DSCN7997.JPG

    DSCN7998.JPG
     
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