Birty Dastards Jeep Club
Tech Forum => Workshop => Topic started by: Bulldog67 on November 21, 2010, 06:52:35 PM
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Have an option on some 3 tonne strops, is that sufficient for the Bastard and the CJ?
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no
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3 ton pull or 3 ton lift?
personally i would take curb weight and times by 3 ie: for the CJ 6 ton lift, from memory the bastard weighs more but thats assuming its made from metal and not rust
saying that i have seen much lighter rated stuff used to good effect
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:icon_winkle: :icon_winkle:
http://cgi.ebay.co.uk/4x4-RECOVERY-WINCH-TOWING-STRAPS-10M-OFF-ROAD-HIGH-VIS-/250671864517?pt=UK_BOI_FarmingEquipment_RL&hash=item3a5d351ac5 (http://cgi.ebay.co.uk/4x4-RECOVERY-WINCH-TOWING-STRAPS-10M-OFF-ROAD-HIGH-VIS-/250671864517?pt=UK_BOI_FarmingEquipment_RL&hash=item3a5d351ac5)
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Cheers Gaz, payday tho :icon_eek:
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If they are 3 tonne breaking strain then leave them.
If safe working load SWL of 3T then breaking should be 21T (factor of 7) - which is what you want
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cheers Smiths, will find out seein as they are cheap (due to mud!)
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as i said ...no
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If they are 3 tonne breaking strain then leave them.
If safe working load SWL of 3T then breaking should be 21T (factor of 7) - which is what you want
From my design days, we would use a minimum safety factor of x2 for the designed weakest point.
Anything involving man movement, eg a lift, then I think it was 5x safety factor as a minimum.
As I say, this was in the mid 80's, so things could have changed (and my memory aint what it used to be).
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as i said ...no
ok Pa, your call
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As they said....
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If they are 3 tonne breaking strain then leave them.
If safe working load SWL of 3T then breaking should be 21T (factor of 7) - which is what you want
From my design days, we would use a minimum safety factor of x2 for the designed weakest point.
Anything involving man movement, eg a lift, then I think it was 5x safety factor as a minimum.
As I say, this was in the mid 80's, so things could have changed (and my memory aint what it used to be).
But you will also have taken consideration of shock loading and the wear of the product before it reachs discard criteria. Thats why the FS is usually higher on the lifting slings (as well as choking it which reduces it) - for nuclear plants they work at 20X. normal for ropes is 5:1, 8:1 mining - seen it down at 3:1 - but generally short term usage and disposal of items. All down to the designer and the risk involved.
I used to work at Bridon ropes/British ropes - one of the things was teaching rope inspectors for the insurance industry and another was in the test house and inquest department (where items were sent for analysis of faillure by HSE)
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5 ton minimum and with it being 10mtrs long you can double up.
towing vehicles also depends on how good the person is behind the tow vehicle steering wheel, if they are a muppet and don't know what they are realy doing then the breaking strain is irrelevant as the either drive over the tow rope and snap it or rip something off one of the vehicles
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is that really u Dave?
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personly i like chain if you are used to it you can tow quite smoothly and when the twat you are towing runs over its its not trashed
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Kinetic Energy..
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i dont much care for it bish
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It does take out the tug when setting off, as does anyrope compared to a strop
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I have some strops from Devon 4x4 that are 2t SWL at 7:1. This must be the minimum I'd recommend cos I've snapped some stitching on one of the tree strops with my XJ hanging off it :icon_eek:
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the elastic in lards boxers are stronger than that
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:hysterical: :hysterical:
Special order trollies :003:
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is that really u Dave?
seen it done,
try using one of those short fixed bars and they can be scarey.
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:icon_winkle: :icon_winkle:
http://cgi.ebay.co.uk/4x4-RECOVERY-WINCH-TOWING-STRAPS-10M-OFF-ROAD-HIGH-VIS-/250671864517?pt=UK_BOI_FarmingEquipment_RL&hash=item3a5d351ac5 (http://cgi.ebay.co.uk/4x4-RECOVERY-WINCH-TOWING-STRAPS-10M-OFF-ROAD-HIGH-VIS-/250671864517?pt=UK_BOI_FarmingEquipment_RL&hash=item3a5d351ac5)
I just received one of these from that same seller. Good strap!!
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Funnily enough, I threw the strap in the back of the JK this morning and headed off to do some things. Came round a corner and there's an extended transit van right across the road with is rear wheels down a ditch. Strap out, hooked him up and he was out within the minute. Nicely timed, postie!! :003:
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i have used my chain three times today and its the same chain i have used for over twenty years beat that the you strap lovers
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yea but you need a chain to tow your lunch box
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i have used my chain three times today and its the same chain i have used for over twenty years beat that the you strap lovers
Dunno, mate. Those chains are dangerous when they break. :icon_eek:
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wire sure flys but not seen chain fly yet only one i ever seen break was two buldozers towing a motor scraper good crack and it fell to the floor but it was heavy chain
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There was a vid on youtube with a chain that broke and flew thru the rear window of a JK. See if I can dig it up later.
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There was a vid on youtube with a chain that broke and flew thru the rear window of a JK. See if I can dig it up later.
one thing you need to remember is in-spite of Bubba's youthful :hysterical: looks he is very experience and unlike most of the muppets on youtube, he knows what he is doing.
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There was a vid on youtube with a chain that broke and flew thru the rear window of a JK. See if I can dig it up later.
one thing you need to remember is in-spite of Bubba's youthful :hysterical: looks he is very experience and unlike most of the muppets on youtube, he knows what he is doing.
Yeah, I know. It's good to see, tho. Many on this forum are new to jeeping.
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most people use what ever they have and just drive off so any break will be more severe than it needs to be. like with everything if its done right the risk of damage is minimal.
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out of interest i want to see a vid of a chain break loads of straps and wires and failed tow points i cant really see me breaking any of mine as they are good enough for towing trucks as i have this last week at work
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There was a vid on youtube with a chain that broke and flew thru the rear window of a JK. See if I can dig it up later.
one thing you need to remember is in-spite of Bubba's youthful :hysterical: looks he is very experience and unlike most of the muppets on youtube, he knows what he is doing.
when & where did this happen, then :098:
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:popcorn:
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out of interest i want to see a vid of a chain break loads of straps and wires and failed tow points i cant really see me breaking any of mine as they are good enough for towing trucks as i have this last week at work
I'm sure your's are fine, Bubba and you know what you're doing but these guy's snapped and it catapulted right through the back window and out the windscreen. If someone had been sat in the way it would have near decapitated them. :icon_eek:
Chain breaks while pullin a Jeep out of the mud (http://www.youtube.com/watch?v=845cxykfDns#)
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scary indeed but its a strange JK
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thats a chain suitable for locking your bike up not hauling something out but then they are american :hysterical:
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scary indeed but its a strange JK
:003:
I thought that! Dunno why I got it into my head it was a JK. Probably because it was posted at some time on the JK Forums. Heh, I'm going senile at 40... :icon_eek:
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Go plasma!!
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not sure 52" tv is going to help when you got stuck :017:
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Thats what happens when you snatch whether it be with chain rope or strop,as opposed to just a simple straightforward tow.All that energy has to go somewhere
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not sure 52" tv is going to help when you got stuck :017:
:hysterical: :hysterical: :hysterical: :hysterical:
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not sure 52" tv is going to help when you got stuck :017:
:hysterical: :hysterical: :hysterical: :hysterical:
:icon_twisted:
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is there any more