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Swim Platform Gas Struts |
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Tailwind385 
Sub Lieutenant 
Joined: 24 March 2023 Location: Northport, NY Status: Offline Points: 13 |
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 Posted: 09 September 2023 at 22:01 |
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Do you remember the part number you got from McMaster-Carr ?
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Tailwind
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kipwrite
Commadore 
Joined: 14 October 2015 Location: New York Status: Offline Points: 495 |
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Posted: 09 September 2023 at 22:32 |
 Tailwind:9502T77 (McMaster Carr) Pulling gas spring. Check the dimensions as this was for a 505. Good luck.
Edited by kipwrite - 09 September 2023 at 22:36 |
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Kipwrite
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Tailwind385
Sub Lieutenant
Joined: 24 March 2023 Location: Northport, NY Status: Offline Points: 13 |
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Posted: 09 September 2023 at 22:36 |
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Was it to replace an 800N ?
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Tailwind
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kipwrite
Commadore
Joined: 14 October 2015 Location: New York Status: Offline Points: 495 |
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Posted: 09 September 2023 at 22:39 |
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Don't recall the original spec. Sorry.
But this one was 200lbs 800n= 179lbs
Edited by kipwrite - 09 September 2023 at 22:50 |
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Kipwrite
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Sounder
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Joined: 11 February 2021 Location: New York Status: Offline Points: 130 |
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Posted: 11 September 2023 at 16:33 |
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I can confirm that the strut does a significant amount of the work lowering and raising the platform since I replaced the strut as discussed above. Unfortunately I do not recall the part number but I do remember that it is an 800N piston for my 348.
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David S
NADINE (Hanse 348 #199) Western Long Island Sound |
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S&J
Admiral 
Joined: 30 August 2014 Location: Perth WA / Med Status: Offline Points: 1371 |
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Posted: 14 September 2023 at 12:33 |
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So after 9 years of Hanse ownership over two boats I removed my gas strut to turn it the other way with the piston at the top.
I can confirm that even with piston at the bottom the strut provides considerable assistance. I was barely able to lift the 458 platform without it. It MAY be slightly easier having refitted with the piston at the top, and the consensus among my crew is that it definitely lowers smoother. We have 800N piston.
Edited by S&J - 14 September 2023 at 14:13 |
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H458 #159 Primal Mediterranean cruising
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Sounder
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Joined: 11 February 2021 Location: New York Status: Offline Points: 130 |
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Posted: 26 September 2023 at 13:59 |
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On our two year old 348 the strut seemed to do nothing; I simply left it alone unfortunately until I could bear it no more. I received two recommendations: (1) Replace it, which I did, but (2) mount it with the piston attached to the hull and the rod to the platform. It was originally oriented in reverse. It works beautifully and I estimate that it takes 90% of the load during opening and closing. My recommendation is to flip the orientation of the piston first to see if that does it.
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David S
NADINE (Hanse 348 #199) Western Long Island Sound |
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Sounder
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Joined: 11 February 2021 Location: New York Status: Offline Points: 130 |
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Posted: 26 September 2023 at 14:01 |
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This new piston was also 800N. I have to add that S&J commented above. Their posts are always spot on.
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David S
NADINE (Hanse 348 #199) Western Long Island Sound |
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lide
Lieutenant 
Joined: 25 January 2024 Location: Singapore Status: Offline Points: 30 |
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Posted: 18 November 2024 at 07:37 |
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Hi. I had the same issue with a dead swim platform strut. I ordered the mcmaster spring recommended above. It fit beautifully. But 200lb ie 890N turned out to be too strong a replacement for the 800N strut that was there earlier.
The platform doesn’t want to go down unless pushed down and then comes back up if there’s no weight on it. Is there any way to reduce the strength? I found that there is a small elastic cap at the end of the piston if one were to unscrew the ball socket. Should that be on or off?
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Arcadia
Admiral
Joined: 27 November 2017 Location: Sag Harbor, USA Status: Offline Points: 1112 |
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Posted: 18 November 2024 at 15:09 |
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Some gas struts do have the ability for the end user to release some gas in order to reduce the spring effort. However you should check with the manufacturer to be sure the ones you have offer this option. I wouldn’t assume anything by looking at it. There is tremendous pressure in these things!!
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Leon / ARCADIA
2018 Hanse 588 Sag Harbor, NY |
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