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#1 Posted : 15 February 2008 14:53:00(UTC)
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Posted By The toecap I am i wrong here? We have a man basket for the Fork lift. There are 2 oins whish are placed at the heel of the forks. I say we don't use it until we get a replcement of pins. The site manager says put bolts in. I say the bolts may snap as they are not what the basket should have. He goes crazy and threatens me. But i stand my ground.
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#2 Posted : 15 February 2008 15:06:00(UTC)
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Posted By Ali If the cage came with pins, you can only replace like with like whatever he says ! Not bolts etc, which is not only dangerous but incompetent. If he is a FLT driver he sounds like a ripe candidate for a refresher course before he has an accident.
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#3 Posted : 15 February 2008 15:35:00(UTC)
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Posted By CFT TC Those pins are a type of high tensile steel and as such are designed for purpose as opposed to mild steel bolts which are not. C
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#4 Posted : 15 February 2008 15:41:00(UTC)
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Posted By alex mccreadie Not criticising any previous posts but is there no possibility of a compromise in fitting high tensile bolts that may be sourced quicker than the pins. This would get the job done. My philosophy is how can we do it not we cannot do it.
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#5 Posted : 15 February 2008 15:45:00(UTC)
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Posted By LMR you may be correct in that 'get it done' and no issues with the substitution and if all goes well then fine and dandy. However, should there be a failure or should the item become involved in any other incident (even witnessing from height another event) and the HSE discover that the substitution was made then there is a BIG difference. Like for like is the only way to proceed; they were designed that way for a reason. The biggest difference could be in the prosecution of personal injury compensation which will cost more in insurance all for the sake of the correct pin or a substitute bolt. I know which I would take (with hindsight being perfect).
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#6 Posted : 15 February 2008 16:27:00(UTC)
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Posted By Robert K Lewis There has been a rash, in my recent experience, of using pattern replacements for some parts - especially load bearing. It was not so long ago that the HSE issued an alert over the bolts used for tower cranes following collapses, the last being at Liverpool. I am also seeing pattern parts for Alloy towers appearing from the Far East. These parts may or may not have the same characterisitics and SWL as the manufacturers parts. Manufacturers say this is not the case, so is there a reason to take the risks when life is potentially at stake? Bob
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#7 Posted : 15 February 2008 16:29:00(UTC)
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Posted By alex mccreadie LMR I dont think you are reading my post correctly you can have like for like pins and bolts. Nobody is suggesting putting a quarter inch bolt in an half inch hole we are talking like for like. It works.
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#8 Posted : 15 February 2008 16:44:00(UTC)
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Posted By LMR Sorry, i have been dealing with the purchase of bolts, pins and other fastenings for many years. there is a big difference in the appearance of like for like and the actual function and purpose. A pin is usually considered to be smooth with an eye or retaining split ring. A bolt is usually threaded; even the threads are difference and the same weight dimension and length of an item has differing strenghts according to the tightness of the threads. This particularly so if you have bar turned fastenings. The point being that yes; they will make a satisfactory and working substitue. However, if anything goes wrong it is a judge in a court of law, or solicitors and loss adjusters, that make the decision and in their eyes it is simple part A will fit and part B will not. I am a top exponent on the adapt improvise and overcome theory in life but behind that is always a wish and a prayer; the correct answer will always be the correct part. In reality a compromise though that was not the question!
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#9 Posted : 15 February 2008 16:49:00(UTC)
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Posted By Robert K Lewis LMR I wish most buyers and managers would listen to your words. Bolts are not replacement for pins and even non-manufacturers pins are not necessarily replacement for manufacturers pins. Bob
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#10 Posted : 15 February 2008 16:52:00(UTC)
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Posted By LMR Robert, A close call with formal caution tends to focus the mind. You look at things very differently after that. Substitutes can be made but they must always be an upgrade and even then the law has the attitude that A fits and B does not! It is not rocket science and each bolt, pin or other fastener has its own inherent strenghts for its own purposes. Cheers
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#11 Posted : 15 February 2008 16:56:00(UTC)
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Posted By LMR in simple terms Toecap - you are right. any delay in obtaining the correct part is cheaper than a prosecution or increased premiums; and you sleep easier at night.
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#12 Posted : 15 February 2008 17:04:00(UTC)
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Posted By holmezy What if..... I need to use the man riding basket, I cant get replacement pins quick enough so I find a chain with a swl of 5tons and attach that to the bottom of the basket in a loop so that it is securely through the basket and around the tines. Then, just to make sure, I ratchet a strap (swl 5000kg) around the whole of the basket and also behind the carriage of the flt. I know its a compromise, but I also know that the basket aint gonna fall off in a million years! Not saying I've seen it done, you understand, but what if? Holmezy One to think about over a beer....or 2!
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#13 Posted : 15 February 2008 17:06:00(UTC)
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Posted By alex mccreadie Gentlemen and Ladies who might be following this post. I work for a Major Tower Crane Provider in the UK I am also a qualified Plant and Lifting Tackle Inspector. At present we are going through a stage where a Customer wants us to fit pins instead of bolts as pins cannot come loose! All our Tower Cranes are less than 2 years old but we have gone back to the manufacturer asking about the feasibility of this.( Not that we will change for Cranes already erected) In the scenario mentioned this man basket could have 2 correct bolts fitted be inspected by your normal inspector and production could carry on. Not Heath Robinson practical legal and end of problem. By the time we have done all this talking the pins have probably been ordered and have arrived?
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#14 Posted : 15 February 2008 17:35:00(UTC)
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Posted By The toecap Just to let you know. I have emailed the manufacturer for the price of pins but await a reply. In the meantime somebody has manufactured a set of pins. We don't have an inspector on site but i wonder if somebody will be brave enough to put thier name down on a piece of paper for the pre-use inspection.
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#15 Posted : 17 February 2008 14:43:00(UTC)
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Posted By tom boland Gents I would have thought the easiest, safest and only way to get approval for substituting pins for bolts is to get approval from the manufacturer. If he approves in writing, you should be covered. If not, you would have extreme difficulty in a court of law defending yourself were the substitute components deemed to be a factor in any incident. We always refer to manufacturer's advice. Good luck Ton
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#16 Posted : 17 February 2008 18:58:00(UTC)
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Posted By MICK MEAD, CMIOSH Sorry to move away from the point under debate, but could the work be done using a safer alternative for work at height? Maybe take a look at Guidance doc PM28 (Google it!) as this was a help to me when in discussions as to when a cage & truck were suitable equipment. Also remember the truck now becomes a person lift. Mick
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#17 Posted : 18 February 2008 13:08:00(UTC)
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Posted By db HSE inspectors can (and do - I have first hand experience of this unfortunately) issue prohibition notices for using man baskets on construction sites. The argument in PM28 being that it is reasonably practicable to use a purpose built machine.
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#18 Posted : 19 February 2008 14:52:00(UTC)
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Posted By alex mccreadie Db Without telling the full story why would the HSE issue a prohibition notice on a Man Riding Basket if it was being used correctly?
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#19 Posted : 19 February 2008 15:58:00(UTC)
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Posted By Robert K Lewis The use of such baskets, as db states, is subject to there being no suitable alternative. The use of such baskets is only rarely justifiable even on cost grounds. Bob
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#20 Posted : 19 February 2008 19:12:00(UTC)
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Posted By tom boland For manriding from a crane etc, all alternatives should be considered and this should be done when all other avenues have been exhausted. For use of integrated manbasket, so long as machine is treated and certified as a MEWP, same rules should apply as do a MEWP.
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#21 Posted : 19 February 2008 22:31:00(UTC)
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Posted By Martin Taylor Coming back to the pins versus the bolts. If I were the manager suggesting bolts I would like to hear a reasoned argument as to why it is less safe to use the cage secured to the forks with bolts rather than the original pins. I don't see this argument made here. The pins are there to prevent any chance of the cage moving on the forks whilst being lifted with a man in the cage. The forces on the case should be predominantly vertical - no great forces moving the cage off the forks. If the cage is being driven aggressively I can imagine the cage tending to move and load on the bolts (pins) equally if the tilt is put to lower the bolts (pins) will take load but both of these are gross bad practice when using a truck - is it the case of protecting the cage under these misuse conditions. Am I missing some other key hazard in this case (given that it is a short term action to get through the time till the proper pins are available). Being too dogmatic could backfire - next time they may not bother to report that the pins are gone and proceed with nothing! Martin
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#22 Posted : 20 February 2008 08:55:00(UTC)
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Posted By Robert K Lewis Martin In order to remain within the manufacturers recommendations, and hence demonstrate to the HSE that you are doing all that is rp, then the use of pins to the specification supplied are required. Change to bolts and the whole thing falls apart, in terms of the argument, until the manufacturer warrants the change. The question is "why did the manufacturer choose pins as opposed to bolts?" The answer is that he has tested this arrangement and knows it to be satisfactory. Bob
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#23 Posted : 20 February 2008 09:54:00(UTC)
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Posted By Paul L Williams My concern would be that by using bolts you then condone it with the workforce. Imagine in the future if the bolts go missing and someone thinks I'll just put another bolt in, not considering if it's high tensile. Personally I'd try and source new pins from the manufacturer.
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#24 Posted : 21 February 2008 18:26:00(UTC)
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Posted By Martin Taylor I accept that changing to bolts is not desireable My point is that the aggrieved manager will much more respond to the problem if they understand what could go wrong on this occasion. I wouldn't mind betting that they can't conceive of any circumstances where harm will occur and if this is the case they will have no mind to following the safe working advice. IF the practical level of risk of the cage coming off is negligible and the urgency to use is great it may be better to allow the use of suitable bolts in the short term but ensure that the correct items are sourced ASAP (record risk assessment and get aggrieved manager to sign). Note the IF... if there is risk of loss of cage or if urgency to use is not great then wait for the pins Martin
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#25 Posted : 21 February 2008 23:09:00(UTC)
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Posted By Andy Brazier I'm with Martin on this one. If the safety department simply say you can't use bolts because it is not what the manufacturer recommends without a good risk based argument people will simply not ask for their advice again. Surely in this circumstance the safety department should be advising how the job can be done safely whilst the pins are unavailable. In this case I believe the pins are not load bearing. Therefore, with some additional controls, bolts are more than adequate. These controls may restrict the activities, require extra supervision or an additional fixing mechanism. This approach means you are not saying it is OK to use bolts instead of pins. Instead you are engaging with the risk management process by saying you can do something different, but it may cost. As others have said, the ultimate question must be why are we doing this and is there an alternative? I really can't imagine bolts vs pins is the most important question.
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#26 Posted : 22 February 2008 09:26:00(UTC)
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Posted By The toecap As i started the thread i may as well finish it. The cost of two pins to be delivered is £14. The cost of a failure is greater. I did put an argument to the manager stating that the bolts are not specified and not tested, and other technical arguments etc. I was overuled by somebody higher. The pins have not been re ordered and the baskets will continue to be used for however long the bolts fail.I advised aginast this,and hearby discharge my duty as a hse advisor not to use the man basket in this way. I thank you.
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#27 Posted : 23 February 2008 09:41:00(UTC)
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Posted By Andy Brazier I would like to add that, although above I said we should not exclude the idea of using bolts where it is necessary, for the sake of £14 I believe your management are crazy to not order the pins.
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