Rank: Forum user
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Has anyone got a flexible hose inspection sheet that I can use and what is the guidance for inspection of flexible hoses.
Regards
Mike
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Rank: Super forum user
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Hi Michaelt,
I don't have an inspection sheet as such but a training manual I wrote many moons ago has an article on inspecting hydraulic hoses if that's of any use to you?
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Rank: Super forum user
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if you inspect you should be competent to inspect as the inspector will be in the frame if somethiung goes wrong - use of a check sheet only is not good practice
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Rank: Super forum user
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bob youel wrote:if you inspect you should be competent to inspect as the inspector will be in the frame if somethiung goes wrong - use of a check sheet only is not good practice
Quite right Bob. Sorry Mike, I should have added that these are daily checks made by the operator of the equipment.
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Rank: Super forum user
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Safety Smurf wrote:bob youel wrote:if you inspect you should be competent to inspect as the inspector will be in the frame if somethiung goes wrong - use of a check sheet only is not good practice
Quite right Bob. Sorry Mike, I should have added that these are daily checks made by the operator of the equipment.
What sort of equipment is it daily checks seem possible to be over the top we used to have hydraulic hoses on packaging lines and they would be inspected monthly and probably in 5 years of inspection they never needed replacing. Are the hoses particularly at risk of damage or working at extreme pressures or lifting operating high loads.
Phil
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Rank: Super forum user
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Hi Phil,
I was thinking of forklift trucks.
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Rank: Super forum user
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Mike,
This is an extract from the manual I wrote, hopefully you'll find it useful;
1. Check the hose for any obvious signs of oil leaks. (If you can see oil on the outside of the hose when there’s no pressure in it, imagine what will happen when there is pressure in it).
2. Check the outer rubber sheathing for signs of cracking or perishing. (Not only will this expose the steel wire braiding to corrosion but it may allow them to unmesh. It would be fairly safe to say that if the outer sheathing had perished through time then the inner core would not be in much better shape and should be replaced).
3. Check for any bulges in the outer sheathing of the hose. (If the outer sheathing feels or appears bulged or blistered then the reinforcing braiding has lost its integrity and there is nothing stopping the core from expanding and bursting).
4. Make sure there is no evidence of fraying where the hose enters the coupling. (This can be caused by ill-fitting or incorrect hose couplings or by people using hoses as grab handles; it creates a weak point in the system that could lead to failure).
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Rank: Super forum user
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I would go along with your list Smurf i think you need to keep any sort of checks relevant to the risk of failure or the likelihood. Going on previous history of the equipment is also something to consider if you have had the equipment for 5 years and a hose has never failed then daily checks might be over the top. Of course you need to weigh this of against the risk of failure and possible consequences.
Certainly if you got daily check system set up in the case of forklift then it will only take a few seconds to carry out an inspection of hoses. but not sure of the value of doing it daily as a lone task as hydraulic hoses are designed to take the pressure and robust enough that they are unlikely to deteriorate with in a day possible over a few months.
Phil
p.s. Another one to add to the list would be to check the oil reservoir.
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