May 19, 2005, 7:00 PM
Post #1 of 31
I was just wondering what type of lubricant some of you use to clean and lubricate your cutaway cables. Personally I have been using WD40, it is not only a great lubricant but also is a great cleanser as well. Anyone see a problem with this?
But actually, there is little reason to alter the design of the ring portion of mini 3 ring risers. Hard cutaways are generally NOT caused by improper ring placement. They are caused by 1. soft housings, 2. incorrectly installed metal housings, 3. lack of cable lubrication, 4. lack of hard housing inserts in the risers, or 5. too short riser closing loops. Incorrectly placed rings are minor problem compared to the above.
my red (teflon) cable does not need to be lubricated or cleaned - it is maintenance free - this according to John Sherman at JumpShack. I clean mine with food grade silicone once a year anyway. Racers do not have hard housings in the risers because they are not needed - this from John as well. High cutaway forces are attibuted almost fully from the friction between cable and loop.
I've had no cutaways yet, outside of the hanging harness... how many do *YOU* have, compared to the designer of the 3 ring system? Who do you think knows better, you or the designer? His name is Bill Booth (username here is billbooth, you may want to look up some of his posts.)
Myself, I'll go with what the designer says - lubricate the cables. You do what you want.
Hopefully, I won't see you in the incident forum...
Coincidentally I was about to buy some of this stuff:
I'd have say that's not the right stuff. I don't see anywhere on there that it says "food grade". It MAY contain petroleum-based additives, which could eat plastic/nylon. The food-grade stuff will say "Safe on Plastic" and "Non-Chlorinated" on the can somewhere. The food grade spray holds an H-1 U.S.D.A authorization rating, so if you see that, you're good to go. But of course if you're in the U.K., there's no USDA, so I'm stumped. Sorry. I'm sure they have the same thing under a different license, I just don't think what you're linking to is it.
Understood. I just wanted to point out that not ALL rig manufacturers believe that hardhousing in risers are required. My VX has not spun me up and required a cutaway (yet) so I cannot speak from experience. I would like to see some side by side test results with risers wound up and 2 extra guys hanging from each harness. yellow cable lubricated, yellow cable not lubricated, racer risers not lubricated etc
Food grade silicon is what they use to lubricate machinery in the food processing industry. I guess it means you can eat the stuff and it won't hurt you. The reason they specify it for parachute equipment is (I believe) that it won't have anything in it that might affect plastic or nylon. Does that make sense?
Can I find it in the grocery store?
Maybe. I'd try Home Depot if you have one close, or a place that sells meat grinders or industrial belts. I don't think it's all that rare most places. My rigger moved away, or I'd ask him where he got it. Sorry.
(This post was edited by EvilLurker on May 20, 2005, 5:20 AM)
The yellow cable is "Lolon F" from Loos and Company. It is a plastic "alloy" specifically designed for tenacity, chemical resistance, low surface friction, and good temperature stability. It will go around a pulley at 60 below zero, and still remain functional. We have been using it for 25 years, and I have never seen it crack, come off the steel cable, or be "eaten up" by any lubricant people have put on it. (And I'm sure they've tried about everything by now.)
As I have said before, we recommend a silicone lubricant. Ace hardware store in the US has a good one. A proper silicone lubricant is also good to 50 - 60 below zero. Just because your lubricant works at room temperature, doesn't necessarily mean it will work below freezing. It can get very cold up there guys, and most oils get tacky at low temperatures. Water also gets 'very tacky" when it freezes, so be sure never to jump a wet three ring system, especially the white closing loop. I have broken away while being dragged through the snow in high winds at the North Pole, with no problem using Ace silicone. (Exit temperature - 54 C., surface temperature -40 C.) My beard was frozen solid, but my 3-ring still worked!
The redcable is Teflon. It is very slippery, but not very tough. (You can even damage it with your fingernail.) I have seen it crack and come off the end of the cable. If it were better than Lolon, I would use it.