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Høydeskrekk

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  1. Why not mount an hydraulic winch and use it for more than just recovery? This is the company that makes the winch: https://www.facebook.com/andebumekanikk
  2. Looks suspiciously similar to the winch I recently removed from my chipper. I suspect these are all churned out by the same Chinese factory and sold under a plethora of different brands. It's a great helper for as long as it works, but mine did not take kindly to soggy weather, of which we have had an abundance here on the Norwegian west coast. When I split mine open after it refused to work any more, after less than a years' use, I found two of the four brushes rusted in place and no longer able to make any contact with the rotor. In addition, one of the four permanent magnets, which are only held in place with glue, had come loose and was hugging the rotor instead. Your winch may, of course, be made to a higher quality than mine was despite the similar looks, but next time and purely based on my own experience, I'll spring for an acknowledged brand. They are really not that much more expensive and should hopefully be able to withstand more than a few rain showers.
  3. I recently changed mine. It's pretty standard stuff. My local bearing supplier had SKF replacements in stock, along with the bearing carriers if you want to change them at the same time.
  4. I lived in Longyearbyen, Svalbard for a number of years. The single most important factor in keeping your feet warm, apart from staying dry, is to have enough room for your feet when wearing thick wool socks. I have separate winter and summer boots. My winter boots here on the mainland are one size up from what I normally use. On Svalbard, I used boots that were two sizes up. Never had cold feet, and I worked outdoors in some pretty harsh conditions.
  5. If you get a rope a little way up that tree, there really shouldn't be much winching force required to take it down. A few hundred kg at most. I know absolutely nothing about UK building codes (I'm in Norway), but I certainly wouldn't worry about running a solid piece of rope around a building - if no other options are available - and using that as an anchor. If you're worried about the corners, nail some pieces of scrap wood together on the edge and use that for protection. Otherwise, the Swedes have some neat forestry tools. The Stalpen Tree Jack, if you are not familiar with it, would probably be more than sufficient to force the tree over and bring it safely down. Stalpen | WWW.SVEDBROSMIDE.SE
  6. I've had one for a little more than a year. Can't compare with the Alpine as I've never used one, and it was about twice the price of the Predator. I had to send the unit back to Predator as it overheated and melted the sheave carriers. Partially due to me being a bit careless about tightening the drive belt as I was breaking it in, and partially because, well, they were plastic carriers. Predator replaced the sheave carriers with metal ones. I've since developed the routine to regularly feel if the grinder head is getting warm. If it is overheating, it's a sign of the belt slipping and time to tighten the drive belt a little more. With the new bearing carriers, and proper belt tension, the unit has not given me much trouble since. I haven't used it a lot, but it certainly has paid for itself and is great for those stumps that you just cannot access with heavier machinery. The largest stump I've done with it was probably 60-70 cm diameter, and really a bit too much for this small machine. But hey, it was good money and a good workout to boot As others have mentioned, it really is important to keep those teeth sharp. Last time I ordered new teeth, they were GBP 9.95 each. The wheel is great for - well - wheeling the unit around. Keeping your left foot on the support may get a little awkward if the stump is on a slope, but is generally not a problem and it isn't always strictly necessary to keep your foot in place, even though Predator says so. The pivot point for the leg is just a clamp around the main shaft and can be easily adjusted. One of the few things that bugs me a little is the bayonet style mounting for the leg. The leg is mounted by angling the wheel all the way towards the engine, and when really reaching out with the grinder it may inadvertently come off. It really isn't more than a minor nuisance, though. The positive thing with the bayonet mount is that the unit is easy to put together without tools, and it has never really come out of control because of this and I have never felt that it has caused an unsafe situation.

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