Grapple Grapple research and tentative conclusion what may be best for me; what do YOU think?

[LittleBlueTractor]

Sure, meantime here's a sketch of it:

Actually, that's probably better than a pic. Thanks -- looks like a have a new project....

 

[beppington]

Actually, that's probably better than a pic. Thanks -- looks like a have a new project....

We let this tab extend toward the securing pin's sloped surface by 7/16", & that did the trick.

 

[k0ua]

We let this tab extend toward the securing by 7/16", & that did the trick.

That was exactly what I had in mind for the repair. Glad you got it solved.

James K0UA

 

[LittleBlueTractor]

Grapple flap, I love it!
Jim

Yeah, it didn't occur to me how that one would roll off the tongue.:laughing: BUT it really does describe the experience of hitting a bump and having the front of the grapple fly up and then come down with a loud CLANG. Every time I'd think "That can't be good for my hydraulics...."

We let this tab extend toward the securing by 7/16", & that did the trick.

I was thinking I might go a little long and then grind it back to a perfect fit.

 

[Rockgod]

Received mine today. Rather than "shims", they sent me another set of the exact same piece that Wild Kat uses for the pin securing mount tabs. I had a local welder cut those into rectangular pieces & weld them to that take up the ~7/16" gap I had with mine. Now the pins fit very tight & they play is eliminated.

Glad you got everything sorted out and fixed! :thumbsup:

 

[beppington]

I was thinking I might go a little long and then grind it back to a perfect fit.

I thought about that, too, but just decided to settle on 7/16" & see how that worked. And it does :thumbsup:

 

[beppington]

Here is the fix (click on them for bigger pics):

Unpainted:


Painted:

 

[SPYDERLK]

OK... I found some stats and did a few calculations. A 10' long 12" diameter log of softwood will contain roughly 7.855 cubic feet of material. The stats I found listed softwoods ranging between 22 and 43 lbs per cubic foot. This works out to between 172 and 337 lbs per log. I seriously doubt that I would be tackling more than two logs at a time. According to this, two logs would weigh a MAXIMUM of 674 lbs. 1,150 - 674 = 476 lbs for the grapple.

Those are dry wood weights. Most logs are wet. None are dry. You should count on the average being above 43#/cuft.
larry

 

[dustinfox]

Those are dry wood weights. Most logs are wet. None are dry. You should count on the average being above 43#/cuft.
larry

How do you know they are "dry weights?" Naturally I took that into account but the article I read was about various "trees" (not firewood or lumber). There was no mention of moisture content so I had to assume the article was about fresh cut trees. Do you have other information?

I suspect moisture content was the reason they gave a range of between 22 and 43. so it wouldn't change my conclusion regardless. I wanted to determine the maximum weight of softwood logs.

 

[SPYDERLK]

How do you know they are "dry weights?" Naturally I took that into account but the article I read was about various "trees" (not firewood or lumber). There was no mention of moisture content so I had to assume the article was about fresh cut trees. Do you have other information?

I suspect moisture content was the reason they gave a range of between 22 and 43. so it wouldn't change my conclusion regardless. I wanted to determine the maximum weight of softwood logs.

Good question. ... First off my impressional experience said otherwise. -- I did some raft building as a kid and found most forest wood to be not much lighter than water [62.4#]. I found nothing that "bobbed" on the water like I would consider a 1/3 density weight at 22# doing. Nothing even that floated half way up [31#]. Best I could judge the wood logs, various and unidentified, floated 1/4 or less out of the water. ... -- So yesterday I looked for wet and dry wood weights. I couldnt find wet, but I have an old Handbook of Chemistry and Physics that has a table of "Oven Dry" weights. These numbers match what you quoted. ...Neglecting cork and balsa of course!
larry