Problems with my paserrelle

P4Paul said:
I should have said, it is worth removing the connectors on the solenoid valves and making sure you have a good electrical connection and a good earth.
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I will have a look at this Paul next weekend, I am not sure I am available the weekend of the charity bike ride but thanks very much for your kind offer much appreciated, I will check what you say and report back again

cheers shawn
 
lanerboy said:
I will have a look at this Paul next weekend, I am not sure I am available the weekend of the charity bike ride but thanks very much for your kind offer much appreciated, I will check what you say and report back again

cheers shawn
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I should point out then when I said the spool was inside part B, the diagram doesn't identify the slew and the lift spool so it could be either of the black electromagnet caps.

Without wanting to teach granny to suck eggs, the spool runs across the valve chest between the opposed black caps, not between the caps on the same side but I would check and clean up all the solenoid connector blacks including the one to the electronic pressure relief valve which is part i on page 33.
 
ok well I think we have finally got to the bottom of my problem

I found a company in Weymouth who agreed to send a chap down to look at my faulty paserrelle which finally packed up all together this week and this is what happened,

He confirmed that there was no power coming from the power pack and that the motor had failed, so he stripped the whole power pack out and said he would refurbish the motor and bench test it all inc valves, solonoids etc etc to make sure it was working as it should, he then checked the paserrelle once the power pack was disconnected, he then diagnosed that my problem all along was that the nylon bush in the pedestal which surrounds the ram which allows the unit to slew round has swollen up and was acting like a brake on the ram.

He explained to me that after a while they swell up and so he told me there is no point in fitting a new bush as this too will swell up over time and I will be back to the same position I am in now so he is going to remove the bush and machine some off it to allow it to slew freely again, and by doing this the old bush should not swell up any more.

He also explained the reason why it would slew out but not in he told me they are designed to have more power slewing out and less power slewing in this is in case a person was to get trapped between the paserrelle and the boat and if this happened the paserrelle is designed to stop so not to cause injury, he said you should be able to stop the paserrelle slewing in by gently pushing against it

Really pleased I found this company and I am very impressed with their conduct and cant wait to get it sorted once and for all

cheers shawn
 
lanerboy said:
ok well I think we have finally got to the bottom of my problem

I found a company in Weymouth who agreed to send a chap down to look at my faulty paserrelle which finally packed up all together this week and this is what happened,

He confirmed that there was no power coming from the power pack and that the motor had failed, so he stripped the whole power pack out and said he would refurbish the motor and bench test it all inc valves, solonoids etc etc to make sure it was working as it should, he then checked the paserrelle once the power pack was disconnected, he then diagnosed that my problem all along was that the nylon bush in the pedestal which surrounds the ram which allows the unit to slew round has swollen up and was acting like a brake on the ram.

He explained to me that after a while they swell up and so he told me there is no point in fitting a new bush as this too will swell up over time and I will be back to the same position I am in now so he is going to remove the bush and machine some off it to allow it to slew freely again, and by doing this the old bush should not swell up any more.

He also explained the reason why it would slew out but not in he told me they are designed to have more power slewing out and less power slewing in this is in case a person was to get trapped between the paserrelle and the boat and if this happened the paserrelle is designed to stop so not to cause injury, he said you should be able to stop the paserrelle slewing in by gently pushing against it

Really pleased I found this company and I am very impressed with their conduct and cant wait to get it sorted once and for all

cheers shawn
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Good news Shawn. What's the name of the company?
 
Yes I think they do Jimmy but I have never used it, they used to do all the hydraulic stuff on the condor ferries so obviously know what they are doing and the chap was on my boat for less than an hour and the pump was removed and on its way back to their workshop so I cant fault that to be honest
 
Great news you have found the problem. Nylon is hydroscopic and depending on grade, will absorb circa 8% of its dry weight of water which is why you should leave the billet soaking in water for a few days before machining to avoid this problem.

Great non boatyard tip is to soak your nylon garden strimmer cord as soaking it will help it last longer. :)
 
ok been a while since I last posted but the short and curlies of it are the old pump unit is scrap basically as a new motor could not be found and something close was coming out at over £500 so I have bought one of these and had it fitted

http://www.flowfitonline.com/hydrau...id-hydraulic-power-pack-with-8l-tank-zz004235

It all works and the paserrelle now functions in all directions BUT it is way too fast and is verging on dangerous it is soooooo fast it is almost impossible to use, it states on the tech details that the bar pressure can be adjusted from 40bar - 200bar but what does this do, if we set it to 40bar the lowest setting will this slow the paserrelle down or reduce the weight it can lift ???????

Does anyone know a way of slowing it down if this bar pressure valve is not the answer

cheers
 
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lanerboy said:
Does anyone know a way of slowing it down if this bar pressure valve is not the answer
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In theory, adjusting the oil pressure will only affect the force that the pasarelle can generate (ie the weight it can lift). To adjust the speed of movement you need to adjust the oil flow. The technical data gives a hydraulic circuit which shows an adjustable flow controller on the single acting models but not on the double acting ones for reasons I don't understand. Maybe a call to the supplier?
 
just put the phone down to Mechanical Services who have done all the work for me and they have fitted some adjustable throttles today and they are now saying it is working 100% and is very slow but can be sped up if I wish by adjusting the throttles, I am off down the boat next week so will see how it is

cheers
 
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lanerboy said:
just put the phone down the Mechanical Services who have done all the work for me and they have fitted some adjustable throttles today and they are now saying it is working 100% and is very slow but can be sped up if I wish by adjusting the throttles, I am off down the boat next week so will see how it is

cheers
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Sounds like a result then! Nice little power pack btw. Amazing how they can do it for the money
 
Deleted User said:
Sounds like a result then! Nice little power pack btw. Amazing how they can do it for the money
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Yes Mike I am well impressed with it for that money, when we got it it had a small leak so spoke to flowfit who were very good collected it next day at there cost, tested it and agreed then sent a replacement the following day so no quibbles there. The old power pack had a metal tank and was just tired this one looks loads better and has a plastic tank so wont corrode etc I would use them again

cheers
 
I feel your pain LB but I do also think that "my passerrelle is too fast" may just be the ultimate first world problem.

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Glad it's now resolved. ;)
 
benjenbav said:
I feel your pain LB but I do also think that "my passerrelle is too fast" may just be the ultimate first world problem.

...

Glad it's now resolved. ;)
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I had a demo last week of the passarele as I said to Shawn in its present state it could pass quite easy as a fairground ride or strap yourself to it with Shawn at the controls and see how long you could last sat on it before you ended up in the water , you would pay good money in a theme park for the same ride.
 
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