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openspaceman

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Everything posted by openspaceman

  1. ...and he will be 5 metres from you and out of the riskzone of your saw.
  2. Yes green stuff for permanent fixes, like sealing two crankcase together and red for less permanent stuff like chain cases, both bastard stuff to clean off. I'd use hylomar in most cases now.
  3. Not in this case, though I have made plenty of stoves on an experimental level. The thing is people are beginning to question wood burning, the chimney is on a party wall with the neighbouring cottage which has been "gentrified" and extended such that it sold for three times what mine is valued at and is owned by a professional couple of NIMBYs, do I need to add more?
  4. Yes a trailer on overrun brakes and less than 3500kg would not need to have the brake valve. This valve is necessary for any Agricultural Motor Vehicle made since 1985 to pull bigger trailers so their brakes are applied with the towing vehicle's service brakes.
  5. ... but we are made in his image what do you expect
  6. Cheers, I'll look. The Holleywell fits the bill nicely so I may wait till they get it compliant.
  7. Stubby I don't know them off the top of my head but the bits that interest me are the reduced particulates per kWh of heat produced, I think they also require a minimum efficiency of 80%, which will mean a requirement for very dry wood (I have built a glazed 4M3 wood store to meet this need). All new stoves will need to be compliant by 2022 (if I last that long!)
  8. Given the choice I'd harvest and burn natural regen passed through a branch logger but fact is I only have limited access to arb waste and some decent logs c/o JBurch so dinky is out of the question.
  9. I love it but it's 30 years old, if they do one that meets ecoburn standards I'd consider it. It suffers from corrosion at the back and around the plate joints. Rear damage cause dby me shutting door on over long logs. It also takes a bit too long to get hot enough to burn cleanly as it is an all cast iron design, fine for running continuously but I tend only to burn in the evenings.
  10. A fitter at my last job always took vehicles to a BP fuel station 5 miles away whenever he got the chance rather than the local Texaco which tended to be 3p/litre cheaper so 1 he could skive off for longer 2 he got the nectar points
  11. What recommendations for a eco design stove, 5kW(t), to fit in a alcove width 60cms, height 90cms and depth 40cms to front of chimney breast but projecting into room 20-40cms is not a problem. It's to replace a Jotul 602 , clean burning is the first requirement and cost a lesser consideration. It will exhaust into 8" flue so either a 150mm or 125mm flue outlet.
  12. Yes as Bob says but it has to be taxed as an agricultural machine, not a mobile crane or digging machine. None I have driven (and that's only a few) have a brake valve which is necessary on any post 86 machine pulling a trailer over 750kg.
  13. Was there a fire near it a few years ago? Most of the damage you see is secondary infection by wood rotting fungi and insects. I'd say it was goosed and never able to recover.
  14. I'll avoid the question about favouring birch Back in 74 when landowners threw money at establishment because it only cost them 3p for every £1 the Economic forestry company charged them, the rest was avoided tax, I watched my foreman swipe a dense 3-8 year old natural regen scots pine coup. We then planted corsican pine at 6ft apart in 8 ft rows. The difference in yield class was supposed to make the corsican out produce the scots by a factor of two at full rotation (70 years I guess). This was the theory but by the time you apply net discounted costs on establishing corsican... I never went back but those corsican would have grown so branchy they would never made decent timber. Actually in those days it was unusual for the mills we used to see corsican so it made less than scots for bars and sawlogs, twenty years later and a lot of corsican came on stream such that the mill set up and sharpening was slightly changed to favour corsican and it began to get difficult to sell scots to the big mills in Southampton and Hevingham.
  15. Sort of but pressure drop times flow (which is constant for any given speed) equals power and that is all going into heating the block. You need to establish what the flow is at the engine speed you want to operate the MEWP, Run the output of the pump ( which looks a bit like a twin piston pump the way the pipes come out parallel with the axis) into a clean empty drum after a couple of seconds mark the level and start a stop watch. after 15 seconds mark the second level and stop. 4 times the volume between first and second level is the litres per minute. Run MEWP off a power pack and do the same for the power pack, that's the flow you want for the MEWP. Gear pumps for the MEWP I hire are tiny and run off 5hp motors, the winch could easily need 30HP.
  16. I don't think pressure is the issue so much as flow. That pump delivers too much flow for your MEWP spool block to handle, hence why I suggested a flow divider. The other possibility is that when the MEWP circuit was connected the main pressure relief for the original pump and winch was bypassed.
  17. If the chassis is a gearbox driven PTO from something like a tipper wouldn't it be a swash plate axial pump? I think it would be sensible to see how the MEWP circuit works from a powerpack just to judge the flow rate needed. The business about the spool getting stiff does seem to be that it is not rated for the flow and one part of the block is getting hotter than another, the differential expansion then putting a bending pressure on the spool, this will lead to premature wear of the spool in its bore. I have said in the past that I don't like pressure compensated spool flow dividers as they tend to heat the oil on frequently used circuits. There is another type which is a bit like two motors on a single shaft like the tandem pumps Bob showed. They are called internal flow gear dividers and they pass a fixed proportion of the flow to one service without increasing the pressure to the other service (which can just be dumped to tank). So even with the existing axial piston pump (which works at a higher pressure than aluminium "Dowty" gear pumps ) a small part of the flow can service the MEWP and can be switched back to recombine and power the winch.
  18. Marcus I don't disagree with you that some people cannot manage their money and can also be feckless, that's not the point. It's like the story of the prodigal son. No matter how people come to be in poverty a wealthy nation should make provision to prevent suffering. That others take advantage of the system, and fraudulent claims regarding the Grenfell fire come to mind, is a separate issue but we have digressed too far from firewood.
  19. Yes since I saw this some months back I have taken to burning dried tea bags in my experimental cook stoves
  20. I doubt it as that classifies strictly on maximum dimension. Also it needs to be very cheap . We had a power screen in when some loads of chip were rejected as being outside the G30 specification. I think there was about 500 tonne in the yard and the screen cost £1500 for the week plus the cost of a 12 tonne 360 and it never did more than about 120tonne/day so the screening cost was more than the loaded value of the chip (3 years ago).
  21. Not in the context of needing financial support from the rest of society, though I guess it's your contributions that pay my pension. The growing disparity between the working classes and the super rich is a different matter and in the long term probably damaging.
  22. Yes but no reason the rest of society shouldn't provide a safety net to avoid too much suffering unless you are suggesting there is a discernible different genetic make up between the poor and the rest of us.
  23. It doesn't look as simple as that because the twigs will be branchy and hence pass the same screen as the preferred loggettes. I'd be looking at a vibrating conveyor with 15mm holes for the fines and a height classifier for the rest.
  24. This is the first I've read of that suggestion. With elms it is true that the disease was restricted to the current annual ring but I see nothing to think the same with chalara. From what I have seen the necrotic tissue is quickly colonised by secondary diseases.

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