Posted in General, maybe this is better place.
Have one of these items, not happy how it tends to slip when the tension gets any place above say 50% on the downhaul.
Removed the fitted downhaul and reversed it, just in case the cord wasn’t that flash and had stretched somewhat, no improvement
Tried replacing the 5mm downhaul with a quality cord from sail shop, no improvement, still wont downhaul like it did in Feb when I purchased it this year.(only used the blasted thing dozen or so times)
Replace the 5mm cord with 6mm cord, figuring larger cord may be the answer and grip the serrations, no improvement.
Wet the cord, still no improvement, Even added sand to the bloody wet cord to see if it improved, No, still tin fruited.
Besides spraying on some "belt grip" anybody have a solution?
Not impressed with this item one bit, maybe I should have stuck to the old tried and true downhaul on my NP mast extension
(photo of one in Photos, windsurfing.
Mineral
hi mineral,
don't have an answer straight away but i had a mate tell me about something that may have been similar to what you describe.......
i will ask and find out if they know of a fix.
Gestalt, thanks, would appreciate that if there is a solution.
If there isn’t, just check night sky, there will be another "shiny" thing in bloody orbit.
(its the red hair that does it I am sure[}:)][}:)])
May have figure out how I to re-engineer the system if its a manufacture/design issue
Mineral
Poledancer, its when it gets to tension that it slips and wont grip the downhaul cord between the serrations in the V pulley. Serrations look OK, minimal wear. Will need to look at a new one to verify that they are still in good order.
Reckon if the serrations are shoddy can tune them up with a small dremmel in the wife’s jewel making kit. Want to look at a new one first, so will call by Windsurfing Perth today to check one out.
Thanks for the help.
Mineral
Mineral,
Twas me who posted the picture.
I've been using one of these for over a year now, was given an old one originaly by Reg at WSP to have a look at it which had been suffering from similar problems to what you have been experiencing. I fixed that one, used it for a while the bought my own. I've serviced stack of others as well.
Don't panic, all can be made well again, I sussed out a fairly easy servicing method for these which can fix the eventual slippage and on the units whcih are under high load (race sails) the occasional jump of ratchet.
We have also found that the White Marlo rope works best with these, I tried lots of different ropes includng a the OEM Chinook rope (quite disappointed there) and even an climbing cord and non compare to the marlo.
I use mine on up to 9m race sails which need a bucket load of downhaul force. I would recommend if using primarily on race sails the the 2 pully version would be a better option as it will reduce the load on the rope.
Back to the fix, it's only about 5-10 mins, although I think in your case the Marlo rope should(?) do the trick.
Myself, I only keep my old extensions in case of emergency.
These extensions in my books are brilliant (not perfect, yet then again nothing is) easier down haul than doing it manually.
I can now also adjust my sail down haul in the water with out having to go to shore which is a advantage at Avalon.
If you want more info drop us a line through the site email and I'll give you more info.
Alby
Aaahhhh Alby your a clever vegemite, that Marlo cord is just the ticket.
Just tried it and could have pulled the house down with the amount I can downhaul with the ratchet, and not a hint of slippage.
Think it was 4mm, maybe 5mm, but it fits down snug in the serrations. My idea going next size up being 6mm may have been the wrong way in size and needed to stay at 5mm or down to 4mm. The Marlo cord is woven/platted to suite the serrations in the pulley.
Good lad that Reg Windsurfing Perth, had it on a role, knew just what I needed. Gotta hand to that crew, they sure live and breath the wind stuff.
Will give you a call tomorrow on mobile. Thanks heaps, owe you a shandy on a hot day
Mike
So to those who also wondered its MARLO cord
There is more, which can be done.
Eventually they do wear a bit and will start to slip and in some cases jump when cranking.
As I said it's an easy fix to bring these back to new condition (IMHO better than new), and only takes 5-10 mins to do.
I'll make up a manual shortly on how to do it with photo's which I can email to our eastern states bretheren.
I'll also set up Steve at WSP with the method so he should be able to do them in house. I was previously picking them up a doing them at home, but this mean't a delay requiring manual downhauling.
Yes I had tried the larger rope trick, all it does is sit above the wheel, The Marlo rope is only about 0.4mm smaller than OEM which actually makes it sit in wheel better. It also has some real nice wear characteristics.
Alby
Does anyone know where I can buy the 5mm white marlow rope in Melbourne ?
My local shop has told me that rope is no longer being imported into Australia !
