Print Page | Close Window

Swim paltform gas strut

Printed From: myHanse.com
Category: Hints & Tips
Forum Name: 415/418
Forum Description: 415/418 Hints, Tips and News
URL: https://www.myhanse.com/forum_posts.asp?TID=12694
Printed Date: 28 March 2024 at 12:03
Software Version: Web Wiz Forums 12.06 - https://www.webwizforums.com


Topic: Swim paltform gas strut
Posted By: Onder
Subject: Swim paltform gas strut
Date Posted: 26 April 2021 at 13:20
Hello, 
The gas strut for the swim platform of my hanse 415 has to be changed
The original one was the hahn brand ( made in germany) 
They have tension and compression type ( gasdruckfedern) and gaszugfedern) 
Which one should I buy, they could not find with article no I sent
Thanks much



Replies:
Posted By: 415 Singapore
Date Posted: 03 May 2021 at 08:06
Hi, with regard to compression or tension type, ours has very specific part code number on it, but I would guess they are asking if it usually retracted or extended when in the resting or usual position??
I am not sure how old your boat is, but all our gas struts failed in the last few months after about 7 years. Initially it was just the cockpit seat struts, so I found a supplier in Singapore for the original manufacturer but they wanted US$ 270 per small strut which I thought was ridiculous, so I found an Italian brand in a chandlery shop for $100 each.
Subsequently, the swim platform strut failed too and I cannot find any that size from other manufacturers in shops here and with a quote of over $700 for an original replacement, I have substituted the strut with $5 of rope that runs through the backstay attachment over the pushpit to the winch. Works fine, but not quite as elegant a solution!
Next time I am on the boat I can get you the part number if that would help
All the best
Paul


-------------
Paul - Night Train - 415 #136


Posted By: Onder
Date Posted: 03 May 2021 at 12:21
Thanks a lot Paul. I installed similar system you did. Based on my search, the reason of the strut fail could be the extreme force on it, so I think the both sides dynema ropes should be adjusted enough to relieve the force on strut. Another solution could be the use of more powerful strut ( mine was 800 N) like 1200 N. But all are my thoughts and have no idea about mechanics of them. It will be great if you can share the brand and article number. My boat is 2014, 415.
I am appreciated for your response and help. 



Posted By: 415 Singapore
Date Posted: 04 May 2021 at 07:10
Hi, as you can see from the attached photo, the label has suffered over the last 7 years, but as far as I can see it is an 800 N part no. 1426349, but that is a degree of guess work! Origianl manufacturer is Hahn of Germany.
Good luck
Paul


-------------
Paul - Night Train - 415 #136


Posted By: 415 Singapore
Date Posted: 04 May 2021 at 09:18
Hi, sorry forgot to add my thoughts about how these work. We bought the boat new and the swim platform gas strut never did anything when lowering the platform, only gave assistance when raising its quite considerable weight. For lowering we always gave it a push but held onto one of the dyneema ropes as we lowered it so as to avoid it crashing down.
All the best
Paul


-------------
Paul - Night Train - 415 #136


Posted By: Matt1
Date Posted: 04 May 2021 at 10:32
Here you go. I think mine still works, but unfortunately became detached from the platform and I'm really struggling to extend it so that I can reconnect it. Tried a block and tackle, and winching it apart, all to no avail


-------------
Hanse 418 #64 EmBer. Hamble, UK



Posted By: Breathe
Date Posted: 05 May 2021 at 10:47
after reading Paul’s description about pushing the platform down, I am not convinced that mine ever worked. As per Matt’s it became detached from the platform, but having almost no force was very easy to reconnect!

I have replaced with a 3:1 rope system. Works great.


Posted By: Matt1
Date Posted: 02 June 2021 at 13:13
I’ve managed to re fit mine after a tip given to me by IMG; to use the backstay adjuster. It took a surprising amount of tension but eventually I was able to fit it again. I’ll be keeping a regular eye on the lower threaded fixing to ensure it doesn’t unwind itself again. By the way I hadn’t realised until I started researching this that gas struts have to be stored (or installed) the correct way up otherwise the seals failed - I’ll pass that on in case anyone else didn’t know that

Pic shows temporarily re-routed backstay adjuster 




-------------
Hanse 418 #64 EmBer. Hamble, UK



Posted By: Elvee
Date Posted: 15 June 2021 at 01:45
Thanks @Matt1. Just discovered the very same issue this weekend gone on Muriel (I'm part of the regular family crew for the new owner - I see the previous owner posted on here a bit).

Amazing how much force is needed to re-extend that struct. Will try crank it out using the backstay when back aboard this weekend.


Posted By: Breathe
Date Posted: 15 June 2021 at 06:03
Elvee,

I hope that you are enjoying Muriel. I was at Bayview last week she is looking great. If you wander down the Bayview marina you will see Breathe, we removed the gas strut and replaced it with a 3:1 rope system. The loads to raise or lower are about the same as previously with the gas strut and a 2:1 rope system.

I suspect that our gas strut never contributed much, and may have been faulty from delivery.

Regards
Gordon


Posted By: Tranquillity
Date Posted: 16 June 2021 at 22:19
Very similar, added a 3:1 system to pull up platform far easier than strut  even when we replaced unit. Small lewmar blocks attached by rope shackles, simple but very efficient. Makes raising and lowering the platform very easy.


Posted By: kipwrite
Date Posted: 25 June 2021 at 16:35
I think this strut is almost identical to the one provided by Hanse at 200 lbs force. Would have preferred if this made of stainless. Have ordered one and will post if it is fit for purpose. 
https://www.mcmaster.com/9502T7" rel="nofollow - https://www.mcmaster.com/9502T7 
$150US plus shipping. 
McMaster-Carr Item 9502T7
Pulling Gas Spring, 26.18" Extended Length

https://www.mcmaster.com/9502T7" rel="nofollow - https://www.mcmaster.com/9502T7


800 Newtons (N)179.847 Pounds force 


-------------
Kipwrite



Print Page | Close Window

Forum Software by Web Wiz Forums® version 12.06 - https://www.webwizforums.com
Copyright ©2001-2023 Web Wiz Ltd. - https://www.webwiz.net