Problems with my paserrelle

Thanks p4paul

That is a great response I have indeed tried some of your suggestions but cant be 100% sure what happened I think I am right in saying that I could indeed push the paserrelle away from the boat without operating the switch and it did not come back to its home position it stayed to where I pushed it to

I have also tried to slew it the full 180 degrees and it did go all the way round but would not come back so I had to pull at the same time only slight effort was required to do this, I then tried to repeat this several times and it would slew out but would not come back on its own merit

Also I must add that when slewing out I only have to hold it very lightly and this will be enough to stop it slewing until I let go it seems to have no power it can only just move its on weight anything more and it fails

But the up and down is no problem it will lift the tender with me in it and I am heavier than I should be :o

cheers shawn
 
lanerboy said:
Thanks p4paul

That is a great response I have indeed tried some of your suggestions but cant be 100% sure what happened I think I am right in saying that I could indeed push the paserrelle away from the boat without operating the switch and it did not come back to its home position it stayed to where I pushed it to

I have also tried to slew it the full 180 degrees and it did go all the way round but would not come back so I had to pull at the same time only slight effort was required to do this, I then tried to repeat this several times and it would slew out but would not come back on its own merit

Also I must add that when slewing out I only have to hold it very lightly and this will be enough to stop it slewing until I let go it seems to have no power it can only just move its on weight anything more and it fails

But the up and down is no problem it will lift the tender with me in it and I am heavier than I should be :o

cheers shawn
Click to expand...

Out of interest, are there two pipes going to the lift/lower ram or just the one?
 
lanerboy said:
Paul

There are 2 pipe going to the lift ram and 2 pipe going to the slew ram

cheers
Click to expand...

Just a thought, if you swapped the two pipes to the lift ram with the two pipes to the slew ram on the valve chest and then see what happened. If the problem moves to the lift/lower you know it is a valve problem, if the problem remains with the slew it is most likely ram seals or a floating ram head.

You will need to bleed the air out when you try it and be careful it doesn't move faster than expected but should help isolate the issue.
 
P4Paul said:
Just a thought, if you swapped the two pipes to the lift ram with the two pipes to the slew ram on the valve chest and then see what happened. If the problem moves to the lift/lower you know it is a valve problem, if the problem remains with the slew it is most likely ram seals or a floating ram head.

You will need to bleed the air out when you try it and be careful it doesn't move faster than expected but should help isolate the issue.
Click to expand...

Yes this is a good idea I should have done that gggrrrrr I now feel like driving 250 miles there just to try this to see what happens
 
Shawn,

following with interest as sometime next week I'm hopefully going to finish the installation of my passarelle which came in a crate from the UK, no markings on the 5pipes to-fro the pump and that should definitely be fun :D

2Qs:
Out of curiosity, when you dis/re-connect pipes swapping them around, you do get some spillage right? Being pressurized, I wonder if it sprays all over the place or if it's manageable. I'm hoping that I wont make a big mess out of it as before wiring the motor I'm planning to give 24V to the rest of the system and operate the toggle switches one at a time checking which relay works when and hopefully figure out how to connect the thing.

Do we use AT fluid as per hydraulic steering? Certainly looks like it.

cheers

V.
 
Hi Vas

When I disconnected the pipes there was some spillage but mine was not under any pressure and it did not spurt out all over the place just a few dribbles

I use proper hydraulic fluid in mine as per the manual

cheers shawn
 
ok so I went down to the boat to try and sort this paserrelle problem out

First of all I tried what paul said and tried to swap the lift and slew pipes over but this cant be done as they are different and will not fit on each others fittings so that cant be tried. So what I did was send the unit all the way around to the full slew and that went all the way no problem I then tried to return it but it would not come back so I tied a rope around it and pulled it back gently until it was all the way back I did this a few times in and out so to bleed the system properly. After doing this the paserrelle worked a treat it went out and came back on its own power so great I though that's it I have sorted it

But if I leave it for more than about 6 hrs it will slew out but will not come back in again without a pull, once pulled a few inches it will work on its own again so it seems like it requires bleeding a bit again after being left to stand and then all is fine, I have checked for leaks and cant find any leaks at all.

One other thing I tried was when it has been bled and all is working if I try to push or pull the slew manually I cant move the paserrelle it stays solid it moves about an inch then stops as though I have taken any play up then it hits pressure and cant be moved manually(not sure what this proves)

When it stops working it only needs the slightest of pulls to get it moving again then it works on its own power

I look forward to any advise once again

cheers shawn
 
Shawn, I don't have a passerelle, so can't talk from experience, but it does sound like there is a seal that is not sealing, and letting fluid pressure bypass it. Can you track it down to a specific ram?
 
Paul I cant work out which pipe is for which slew as they both just go into a cylinder type unit its not like the up and down ram and this is all enclosed in the pedestal of the passerelle to remove this would me removing the whole passerelle from the boat which I am trying to avoid if possible.

I agree regards a possible seal or valve that is letting the oil back passed and this is why it needs a helping hand but once bled it works again, I have managed to find a local chap who knows about hydraulics so he is going to take a look next week if he gets time so I will report back once I know more

cheers
 
I am still not sure I would be looking at ram seals just yet.

It is hard without seeing the whole system but I think you have a sticking solenoid valve, either it is the slew spool sticking (inside part B on page 27) or the electronic pressure relief valve spool. My gut feeling would be the slew spool and I think that by pulling it back in on a rope and then slewing back out again you get the spool moving; you leave for a while and it starts sticking again. It isn't normally a huge job to sort a sticking spool out.

If you haven't got it fixed before and providing I am able to move after the charity cycle ride, I could take a quick look at on the Sunday if it helps.
 
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