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About john87

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  1. Oh god yes, i would agree with that 1000% There are loads of counterfeit bolts, bearings and god knows what else out there. As you say, always buy from proper fastener firms, and even then.. Who knows.. You very definitely only get what you pay for as you say. If it is cheap, there is a reason.. john..
  2. The bolt suppliers can think and say what they like. If a bolt is to a certain spec, the strength will be the same regardless of when it was made.. Never listen to the dummy in the shop, and always order critical parts with reference to the british standards involved. This is why, when decent firms order steel, if it is delivered without the test certs, the whole lot will be sent back.. It may be of interest, that when a slab or billet of steel is first cast, it has a number stamped on it, the "cast number" every beam or whatever that is rolled from this billet, will also have the cast number stamped on it, so if you go to a decent steel stock holder and pick out any particular bar, they will be trace it back to the original billet or slab from when that lump of steel was first produced.. john..
  3. Hi There, The link you give is about hydrogen induced cracking. This is indeed a problem with higher strength materials and is a very common problem when these higher strength materials are welded.. The bolt i had that failed, i would say suffered from corrosion fatigue, again, a problem with higher strength steels.. I am no metallurgist, but i do hold formal written qualifications in such things as welding metallurgy, materials technology and quality control so i have a fair idea!! Very interesting link by the way!! john..
  4. I would go the digger route too, [I own one] but there is no access.. Good news is that the stuff has not spread everywhere, it is just like a 12 foot diameter clump. I cannot burn it where it is either as the surrounding buildings are stuffed with smoke alarms in the roof spaces too. One whiff and the fire brigade will be around!! john..
  5. Thanks!! Just ordered one!! john..
  6. Could you recommend one you think would be better?? I would not know where to start with selecting one.. john..
  7. The bamboo is about 1/2" diameter i suppose. You have a job to cut it with a machete.. Hopefully my brushcutter with a steel blade will do it though. [I hope] This blade here i have.. Do you feed the bamboo in a bit at a time or just chuck armfulls in?? john..
  8. Hmm, Mine has a brand new blade now and i checked the anvil too and that has a nice sharp square corner so all is well, but the bamboo is so hard i might give it a miss and burn the stuff.. How do chippers cope with leylandi trees.. Will it munch them up happily?? I have a huge amount of laurel to do too but i cannot see a problem with them.. john..
  9. Yes, as i say, i have never used one before, and when i started mine i was amazed at the velocity and volume of the air that came out the chute, never mind the chips.. From a quick calculation the periphery of the disc would be doing about 130 MPH so if it all fell to bits shrapnel would fly in a big way.. On a different subject, i have to cut down a load of bamboo.. I would imagine that i would have to be an idiot to put this in the chipper or am i being too fussy?? john..
  10. Yes, exactly right, which is why the very first thing i did when i got it was to check the entire thing, new oil, new air filter, i checked the belt tension with a proper belt tension gauge too.. I would hate to see what happens if a blade came off; It would destroy the machine in a big way, probably the engine too, as the sudden stop and the flywheel then twists the crank, seen that a few times on rotary mowers.. I had to go and help remove what was left of a centrifugal fan exploding once.. It was in a paper mill and was something to do with drying the paper.. The fan broke up and despite the housing being a welded construction of about 10mm thick steel, that was just torn open like a papaer bag.. The one piece that burst out of there, cut completely through a steel beam about a foot deep in the roof of the place, then made a large hole in a brick wall and shot off god knows where. All around was just wrecked.. Someone was walking past at the time. They were untouched, but i bet they crapped themselves!!! john..
  11. I would think so too.. john..
  12. You could very well be right. Why someone would do that though is beyond me.. Either too much money and not enough sense, or never paid for the thing themselves is all i can think of.. john..
  13. I saw the house and land the bloke had and so had no reason to disbelieve him. The rest of the machine is absolutely immaculate, so i do not think it has had a hammering.. Put it this way, the paint inside the chute is not even worn.. They "could" have fed it handfuls of gravel or nuts and bolts!! That is something i will never know obviously.. Might have been pallets!! john..
  14. I do.. I bought it from a man who had only used it to do one job in his own garden. It had never been used commercially. The rest of the thing is literally like brand new, it was used for the one job and lived in a garage ever since... That is why the bolt problem is a big deal.. something like a bolt should not just crack, stretch perhaps if overloaded, but not crack and fail in a brittle manner.. Funny how the other four "seemed" ok.. john..
  15. That is right. The point being that Timberwolf need to be telling people not to reuse the bolts. The corrosion was within the cross section of the core of the bolt, as you can see. Therefore, the bolt had a pre-existing crack.. That cannot be good, especially as the bolt had never been replaced.. I did say they came out easily; What i meant, was that i was able to get them out easily. I was well worried that they may have been corroded in, but happily not!! john..


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