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About Logjam

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    South East UK
  1. Logjam

    Climbing helmets

    Still available but they have similar harness inside to pass the relevant impact test. JSP in UK make them for the export market.
  2. Logjam

    Petzl OK and chicane

    Remember reading somewhere that CE test was only with the new type Zig Zags but Petzl conducted their own in house tests & Chicane proved compatible with older single attachment hole ZZ. Maybe somebody can post a link, can't remember where I saw it. So the original ZZ is only CE certified for DDRT - but it does work with the Chicane. Update - just realised it was Barry on here Okay we have an answer - They have confirmed that the outgoing ZIGZAG (ie D22A) is compatible with the CHICANE as well as both new 2019 ZIGZAGs. They have said that the configuration is not certified by a notified body (ie they didn't send it off to be certified along with the new products but that they have put the D22A through all the same in house testing with a CHICANE as they have with the new ZIGZAGs and are happy that it passed all the testing.
  3. Logjam

    Climbing helmets

    If you're concerned about chinstrap type for ground or aerial work the new Petzl helmets have dual purpose chinstraps. The DUAL chinstrap allows the worker to adjust chinstrap strength in order to adapt the helmet to different environments: work at height (EN 12492) or on the ground (EN 397). The clip has two positions, corresponding to the following two uses: - higher strength to limit the risk of the helmet coming off in a fall (strength greater than 50 daN) - lower strength to limit the risk of strangulation, by releasing if snagged when user is at ground level (strength lower than 25 daN)
  4. Logjam

    Petzl OK and chicane

    Hadn't noticed any flex, because the OK makes a rigid connection to the Chicane it seems to keep everything in place. Like you say very easy to swap back to DRT if you want.
  5. Logjam

    Petzl OK and chicane

    Had same when I bought mine, Rupe is not the only one. Already had Petzl OK biners so just got the Chicane, shape of the OK karabiners has indeed changed. Got the new shape, bit of a snug fit but keeps it nicely aligned. Also using it with the original single hole ZZ & works fine. Like the consistency & smooth control, don't need to fiddle about fine tuning hitch cord, it just works out the box, once you have the correct biners.
  6. Logjam

    Climbing helmets

    Depends which standards the helmet has been tested to. Forestry helmets are normally EN397 for overhead impacts, many of the industrial climbing style helmets have EN 397 and EN 12492 standards for overhead & side impacts. From Satra website https://www.satra.com/ppe/EN12492.php "The test in EN 12492 is essentially the same as that specified in EN 397, where a 3kg conical striker is dropped onto the helmet from a height of 1 metre, and any contact between the helmet and headform (although in EN 12492 the headform is in the form of a standard test block) noted. Penetration tests on mountaineering helmets can be carried out on any point around the shell of the helmet however, unlike EN 397, where they are restricted to an area at the crown of the head." Just remember that vented helmets are probably not rated for overhead molten metal or electrical hazards.
  7. Logjam

    Battery saw

    I've got a Husqvarna but if you already use cordless tools getting one that will run on the same batteries is the most economical way to go. No smelly petrol, lightweight, low noise & vibration, no pull start, just squeeze the trigger. What's not to like?
  8. Logjam

    NPTC chainsaw tickets course content

    Not much has changed, Husqvarna sponsor the NPTC workbooks & their Working with Chainsaws series provides a good guide as to what is required.
  9. Logjam

    The mythical female chainsaw boots....

    Arbortec Lightning, wife has a pair of size 3, smallest c/saw boot I've seen; good price for size 4 at Abbey Garden at the moment. https://www.abbeypro.co.uk/chainsaw-boots/arbortec-chainsaw-boots/showitem-FT-28500NEW.aspx
  10. Logjam


    b) The MS 661 C-M Good luck everyone.
  11. Logjam

    Petzl Zigzag wear

    Same on my relatively new ZZ, seen it on plenty of others too. Happens where first link touches if completely compressed such as threading onto rope or pulling through slack. Not seen it progress beyond surface marks, usually get more side plate wear below the pulley where the rope feeds in.
  12. Logjam

    Lombardy Fell Incident

    Company fined after eighty-foot tree falls onto cars
  13. Logjam

    CE standard for figure eight device

    Simple answer - AFAIA there isn't one.
  14. Logjam

    Dmax issues where do I stand?

    Ditto Since problems with rising oil levels part of the manufacturer 'solution' was to provide modified dipsticks. There is now a X (not visible in the photo) at the two indentations, this identifies the highest level, at which point oil should be changed. Wouldn't recommend running it for too long after part draining as oil will become progressively more diluted. I get oil change kit delivered for £50, correct spec with filter & drain plug. Easy job to change & significant saving over dealer rates. Ours required three oil changes in the last 12 months.


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