sime42

Hello all This question may already have been covered, but I can't find the exact answer that I'm looking for so I'm starting another thread. Apologies if I'm boring anyone! I was recently doing a job that involved quite a lot of limb walking. It was a few Oaks that were seriously overhanging the house, the reason being that they were on the edge of a wood and south facing so most of the growth was in that direction. The customer wanted to removed some overhanging limbs to balance the trees up a bit as a large one along the same row had recently come down, (though luckily missing the house). Without wishing to large it; I'm fairly competent at limb walking, i.e. don't have too much problem with balance and getting out on a limb by walking backwards, bracing against the lifeline and using branches as foot holds, especially since I was on a strong as Oak in this case. I also get the TIP as high and strong as possible. My issue is what would happen if the limb I'm walking on was to break??? I worry about:- a) swinging into the trunk and causing myself injury as the swing in would be significant b) the broken limb dropping and causing damage (in this case to the house below) In this kind of situation I normally look for a parallel limb above me to re-direct on and/or strop on to. If there is no such option then I strop on to the same limb on which I'm standing, to stop swing-in in case I lose my footing. In this case I worry that if the limb was to break I could potentially end up in a situation where both (A) and (B) were true, with me stuck in the middle with the weight of the broken limb trying to tear me apart!! What does anyone else do on this kind of job? The only half decent solution I can come up with is to have an extra long strop or the other end of the life line to a fixed point on the ground or a solid groundie. A good distance away from me out from the trunk, to control swing-in. I'd like to know peoples thoughts on this please It might look a less that impressive photo but it felt quite dodgy to me! Cheers Simon

Cheers all for your helpful thoughts. My plan of action is to get the exhaust off and check the piston. If it looks OK I'll try a retune. As a last resort I'll have a go at repairing the previously mentioned well known faults / replace the whole carb, depending on how brave/broke I feel! First I'm going to buy myself a service manual as they look pretty cheap on Ebay. I'm assuming there won't be too many differences as I'm not sure I'll be able to get one for the exact year of my saw.

Thanks for the offer Eddy-T. I'm in South Birmingham. Where are you? Wolfie;- I appreciate your advice about getting a new carb. It would be ~£100 that I'd rather not have to pay out though if I can avoid it. So is there any harm in adjusting the idle screw a bit in the hope that fixes it? Can anyone point me in the direction of any documentation for the MS200 please? A workshop/maintenance/service manual or exploded diagram for instance. I've seen various references to them on here but all the links I've followed didn't work.

Thanks for the re-assurance Wolfie. If it is the "normal" carb fault, dodgy accelerator pump, would that happen suddenly? I'm not sure if I made it clear but the idle problem started immediately after the leylandii milling incident. Before that it would happily idle all day. Unfortunately I don't have another ms200 to swap the carb from.

Hello all I've got a bit of a problem with my trusty climbing saw, (Stihl MS200T, 2008 model). It doesn't want to tick over nicely at the moment. When I first start it the idle is a bit uneven and after a while it cuts out altogether. When hot its even worse, it just dies as soon as I release the throttle. Apart from that it seems fine, it revs as good as ever and has plenty of power for cutting. I should mention that I may be responsible for this problem! A couple of weeks ago I was doing a reduction on a leylandii hedge, and using a skip to get rid of the waste. I was getting short on time and skip space so decided to mill the brash down a bit with the chainsaw. I went at it pretty hard and after only a few minutes the saw started cutting out on idle. I figure I must have overheated the poor thing as it was a stinking hot day and the exhaust was pretty stifled as I had the bar in the brash up to the hilt. The exhaust housing was smoking afterwards. I feel a bit stupid writing this now! I'm loath to take it to my local service place again as I feel that since I'm normally pretty mechanically minded this is something I should be able to sort myself. Judging by a lot of other posts I've read on here I reckon this is the best place to come for advice as of few of you blokes seem to be chainsaw Oracles! What does anyone think;- have I indeed overheated the thing and caused some damage to something? (or maybe the smoke was just resin burning off on the exhaust. He says hopefully!). Or is this just a question of re-tuning the carb? If anyone could give me a quick tutorial on the three screws that would be much appreciated, (H, L and LA). Thanks. I've always wanted to get my head around these but never plucked up the courage to fiddle with them in case I muck up a fine balance of something. Thanks in advance. Sorry about the long post!

Thanks all. This is exactly the kind of response I was hoping for. Some good advice there. And pretty much a consensus too! I wasn't too keen on giving the tree as drastic a cut-back as the customer seemed to want. I'll have a chat with them and convince them that less is more! I thought beech were pretty good at healing up over cuts. I've seen scars that have almost disappeared. But, I guess that they could have been done at an early age as the smaller the branch cut the better it heals. cerneARB - Do you really mean only cut off 30mm? That seems tiny to me. Would take forever;- there would be that many. Cheers

Hello all I'm fairly new to this game so could do with some advice from all you knowledgeable guys. I been asked to do a job that involves the reducing and thinning of a beech tree. Its the common story;- it over-shadows the lawn so takes most of their sun. They want me to take off about a third of the height of it. (I say it, although it's actually 3 or 4 trunks coming from what might be a common base. It is at the end of a beech hedge so could well be an overgrown part of that.) I'd say the height of the tree(s) is 50 - 60 feet. My question is;- when is the best time of year to do this work? And also, is it even possible? (I read somewhere that you shouldn't really prune beech trees at all.) I've attached some pictures for info. (And amusement;- see camp looking attire of my mate that wants the work doing!) I'd be grateful for any experience or ideas that people might have on this. Cheers Simon