Where to buy? (Shackle for crane tie-in)
- Thread starter teamtree
- Start date
Help Support Arborist Forum:
voxac30dude
ArboristSite Operative
are you tying into the cranes hook or are you taking the hook off and looking for a shackle that will attach to where the hook is bolted on?
Dave
ArboristSite Guru
One inch pin is plenty big enough, they're rated 8 1/2 ton. Pin is long (wide) enough for your friction saver. They run around 10 bucks on ebay, kinda pricey at a contractor's supply. Of course, if it comes from ebay you'll want to see a pic and it should be pretty minty.
John Paul Sanborn
Above average climber
Any large load rated clevis that you can put a locking pin in will do.
Though i would use wire or something besides a plain cotter-pin
Though i would use wire or something besides a plain cotter-pin
treemandan
Tree Freak
Any large load rated clevis that you can put a locking pin in will do.
Though i would use wire or something besides a plain cotter-pin
That is the key, it has to lock. Mine has a through bolt, nut and pin. The one you pictured would make me nervous too.
Last edited:
danieltree
ArboristSite Operative
I use a shackle sometimes above the ball around the cable to hook a limb and then let the climber down on the hook. I use a rescue 8 on the hook and make sure that the gate on the hook is in good shape. I think we(arborists) are the only ones that are allowed to do this. My workers comp guy saw me doing a removal this way and was cool with it.
limbwalker54
ArboristSite Operative
I use a shackle with screw pin that is longer than the shackle is wide, so I can put a nut on the end with a cotter pin through the nut....three layers of protection......works great and the shackle is a 2 inch.
John Paul Sanborn
Above average climber
And if you want another quick layer of protection, just double nut the through-bolt.
Rigging generally carries a 5-1 safety factor.. My own weapon of choice is the Crosby brand ..the finest bar none..
A shackle around the becket that still attached to the ball ..its the best and only route ..dont remove the ball ..
just dont trust me ..
oldirty
Addicted to ArboristSite
A shackle around the becket that still attached to the ball ..its the best and only route ..dont remove the ball ..
just dont trust me ..
master link then the shackle to the master link. that way you can undo the ball and slip it on one time for the rest of your crane climbing life if you are using different cranes.
i suck with terminology so bare with me on this.
becket. that the thing that you pull a pin from and it separates from the ball itself?
anytime we switch cranes we bring the master link and shackle set up with us.
cable down the ball while its still in the cradle till it just slackens the line enough to where you can undo the pin from the ball slip the master link on re-pin and bang. instant ansi compliance.
fear not the becket.
John Paul Sanborn
Above average climber
One setup I saw was using a clevis like this around the cable, so it sits on the ball. Run a friction saver through it so that the TIP hangs down the side of the ball. If you put a carabiner in the FS you can pull the rope regularly without worry of the FS falling off the clevis during a pick.
lumberjack333
ArboristSite Operative
One setup I saw was using a clevis like this around the cable, so it sits on the ball. Run a friction saver through it so that the TIP hangs down the side of the ball. If you put a carabiner in the FS you can pull the rope regularly without worry of the FS falling off the clevis during a pick.
Just rocked my first crane job yesterday and today... Same shackle as this, set up like you say with friction saver and biner to secure it. What a blast! 35 red pine 70 ft'rs cleaned up and gone in 15hrs... riding up on the crane made the job seem like a joke!
Thats a becket ..or wedge and socket both are popular trade names ..
And yes you have to un-pin it ..
Master link .. last time I heard that it was in regard's to a chain(help)
Old dirty ..
Are saying you slip a shackle through the becket throat..
Do you have that compliance # and pictures of the arrangement ?
oldirty
Addicted to ArboristSite
i'll take a pic of it tomorrow for ya.
edit: but ya, right where that pin is. unpin that thing from the ball and slip the masterlink (which that shackle is attached to) right over the ball and re-pin.
edit: but ya, right where that pin is. unpin that thing from the ball and slip the masterlink (which that shackle is attached to) right over the ball and re-pin.
Last edited:
lego1970
ArboristSite Guru
Although I've only flown a few times from a crane and every time was just off the hook, the guy I worked for did end up getting an approved shackle, or at least that's what he told me. He bought one from United Rental that supposedly was OSHA approved. It looked similiar to the pics above, and it had a nut with a key on the outside. The approved part is just what I was told.
treemandan
Tree Freak
To answer the question in the OP I got mine from American Arborist. It was under 100 bucks but not by much if I recall.
I tell you from experinence you don't want to be on that hook. I mean you can ( but not really) but you have to really be careful. I was on a hook years ago, the operator was swinging it into the canopy, I was hollering for him to stop but he didn't. The clasp was opened by the little twigs and my rope popped out just as I got onto a limb but still did not have my lanyard on the tree. It could have been nasty.In fact I am still pissed off about the whole thing.
I tell you from experinence you don't want to be on that hook. I mean you can ( but not really) but you have to really be careful. I was on a hook years ago, the operator was swinging it into the canopy, I was hollering for him to stop but he didn't. The clasp was opened by the little twigs and my rope popped out just as I got onto a limb but still did not have my lanyard on the tree. It could have been nasty.In fact I am still pissed off about the whole thing.
Saw Bones
ArboristSite Operative
You can get a shackle with a screw pin with a nut and cotter key on it. Grainger or any good supply house should be able to help.
outofmytree
Addicted to ArboristSite
Sigh. See I was feeling good abvout you having chipper envy and then you had to go and post this. You know we can't ride the hook over here right? So just stop all this cool talk about crane picks before I break down and
treevet
Addicted to ArboristSite
Don't know if it has been tested to this effect but if the disengaging device does not work or if the crane does not have one it seems to me that the clevis, if fed up into the sheave by an unalert op would likely break when under pressure.
People been riding the hook for decades. If the sub op says I have to use the clevis (on rare occasion) I will but if it is not there....no biggie. I ride my own without one. Been doing it for, again, decades...and I am still here.
Lots of these rules are being made by white skinned, soft handed, office type, wannabe's that haven't got a clue. (kinda like Jomoco
)
People been riding the hook for decades. If the sub op says I have to use the clevis (on rare occasion) I will but if it is not there....no biggie. I ride my own without one. Been doing it for, again, decades...and I am still here.
Lots of these rules are being made by white skinned, soft handed, office type, wannabe's that haven't got a clue. (kinda like Jomoco
)
