Logjam
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Everything posted by Logjam
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Definitely the way to go if you want to get into climbing work. If you want to keep your feet on the ground then maybe go for the felling over 380mm qualification. Windblown trees is separate qualification, not included with felling. Have a look at NPTC website for details of current qualifications. Sent from my SIM implant.
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IMO CS32 is not required to fell a stem over 380mm if crown has already been removed. No crown, so no need to assess crown weight, balance, wind etc, not the same as felling complete tree. Sent from my SIM implant.
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Not just my interpretation, came from discussions with the HSE, long time ago but don't see any reason why it would be different now. Felling over 380mm qualification requires whole tree to felled with intact crown using maximum 380mm guide bar & also includes take down of hung up tree with a winch. If all or part of the crown has already been removed the tree would not be suitable for the assessment. The dismantling qualification might be more relevant for an arb as it is likely that some limbs would have needed to be lowered. Sent from my SIM implant.
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If you section down & just fell the stem there is no need for larger than 380mm qualification. Only required if you will be felling whole tree in one without removing crown. Sent from my SIM implant.
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Might be able to help - sent PM
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Unit 10 - maintaining the chain saw Unit 11 - Felling, de-limbing & cross-cutting trees less than guide bar length (450mm/18") Would have been an NPTC assessor but these units are no longer accepted as pre-requisites for the current qualifications. Unit 11 didn't include the take down of hung up trees (separate unit 14) which is now a mandatory part of tree felling qualification. Nearest current equivalents: Chainsaw maintenance & cross-cutting Felling & processing trees up to 380mm - NB see comment about hung up trees above
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Kiwi company, ropes meet ANSI (American) standards but not CE. Should have CE certification for use in UK & Europe. Sent from my SIM implant.
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Definitely need to give the harness a try before purchasing. The one in the kit is a general sit harness rather than a specific tree work harness. The single central attachment can be restricting & too high for good balance when limb walking. 25m rope is not really enough, minimum top anchor for climbing assessment is 12m & will often be more (during training & assessment), 37m would be more practical for not a lot more money. Talk to as many people & try as many harnesses as you can before spending your hard earned. Recommend putting together your own kit based on personal preferences & comfort, might cost a bit more but you will benefit long term.
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The issues with using a Cinch in tree work are explained in the Treetools blog (there are other posts on the topic if you want to read more). It's not about LOLER or even EN numbers (both Cinch & ART Positioner comply with EN567 - mountaineering rope clamps) but the manufacturer instructions for safe use & the recommended rope diameter & type. I agree the Cinch is great on a lanyard but it's worth understanding the arguments for & against. As mentioned in the Treetools blog there is opinion that it should not be used for tree work when there is industry specific equipment, compatible with the majority of arb ropes & designed for the task.
