Cracked Grapple

[bob]

Hi

No camera with me so i have drawn it on this picture of the Botex grapple from the wilsons website.

 

 

 

Thanks

 

Andy

 

what make is it? ( i think you have just used a botex picture )

very observant mr blair

[Stephen Blair]

i am not sure if it is a botex grapple he has, or he has just copied that pic form jwilsons to use as an example.

 

the reason i ask, if its a botex i would think wilsons would want to know about it and take a look as botex are renowned for being very strong

[Omniata]

If you do decide to weld it drill a small hole, approx 3mm, at the end of the crack before you start welding it...

 

Otherwise as you weld it you could end up chasing the crack right through it

[Brushcutter]

i am not sure if it is a botex grapple he has, or he has just copied that pic form jwilsons to use as an example.

 

the reason i ask, if its a botex i would think wilsons would want to know about it and take a look as botex are renowned for being very strong

 

It was from Wilsons a long time ago. It's a bit of a mish mash of bits it a Botex roof mount crane on a trailer apparently. Don't know if its the orginal grapple but i asume so. So i'm guessing it's a Botex grapple.

[Peter]

I doubt wilsons will be very interested, its probably outlived its design life many times over.

[combined tree services]

if you are going to plate it your self i would use 2 dimond shape plate either side of the section of steel but before you weld them on i would grind out the crack and weld it up as well , to do this i would v out the crack and put a route run in before capping the weld off but be sure you have a welder that will happily knock out betwene 200 and 220 amps as you will require a good penetrating weld.

[smiles]

If you do decide to weld it drill a small hole, approx 3mm, at the end of the crack before you start welding it...

 

Otherwise as you weld it you could end up chasing the crack right through it

 

 

As above,even if you decide to overplate it,kills the stress at the end of the crack

[Stephen Blair]

I doubt wilsons will be very interested, its probably outlived its design life many times over.

 

given the age i would say you are right pete:001_smile:

[renewablejohn]

If you have any gas pipeline contactors around they have the skill and equipment to do a proper root weld job.

[muldonach]

If you do decide to weld it drill a small hole, approx 3mm, at the end of the crack before you start welding it...

 

Otherwise as you weld it you could end up chasing the crack right through it

 

Seconded - also grind into the crack and weld from both sides

 

cheers

mac