Rovertym Bumper

JustAddMtns

JustAddMtns

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Jun 22, 2007
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I have it turned up on my hitch because it was hitting the ground and getting jammed up with dirt. It has even caused the pin to rotate making it tight enough that it was a major ordeal getting it off.
 
KyleT

KyleT

Well-known member
Mar 28, 2007
6,059
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Fort Worth, TEXAS
ptschram said:
Why not? In that configuration, gravity is keeping the pin in place should it vibrate loose.

:curious:
Click to expand...
you and him are right... the wrong one is screw down.

but really they are both wrong because one held in with a cotter type pin is better...
 
D Chapman

D Chapman

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Jan 3, 2005
11,746
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On Kennith's private island
JustAddMtns said:
Dan, why? I've never heard that before.
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Despite what PT says (actually, what PT said is funny), the pin can fall out that way. If the pin is screwed down, it's not going to fall out due to vibration, etc..

It's the same with roller fairleads that use nuts/bolts (not c-clips). If the nuts are on the bottom, even if you loose your nuts the bolt will retain your roller(s).
 
whatroad

whatroad

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Mar 8, 2007
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Union, ME
garrett said:
Why is screwing down incorrect?

And how is one being held with a cotter pin any better? What D shackle has a cotter pin anyhow?
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The D shackles that are $15 at Tractor supply. And that's where they should stay, on a tractor.
 
D Chapman

D Chapman

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Jan 3, 2005
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On Kennith's private island
Quit calling them D-shackles. Or D-rings. I hate that. This is a D-ring or D-shackle. It's shaped like a D.
http://www.yacht-riggers.com/images/hi_mod/big/d_shackle.jpg

This is a bow shackle. It has a bow in it.
http://www.treeworld.info/attachmen...advise-some-basic-tools-trade-bow_shackle.jpg

A D-ring or D-shackle is a small loop that can take high loads primarily in line. Side and racking loads may twist or bend a D-shackle.

A bow shackle has a larger "O" shape to the loop. A bow shackle can take loads from many directions without developing as much side load.

These are junk.
http://www.tractorsupply.com/agricu...straight-clevis-pin-amp-clip-standard-0268852
 
whatroad

whatroad

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Mar 8, 2007
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I didn't get technical with my reply because the person it was intended for thought they were okay to use in the first place. I figured they would not understand the difference.
 
ptschram

ptschram

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Sep 27, 2004
21,955
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In the shop doing the Lord's work one broken Rover
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D Chapman said:
Despite what PT says (actually, what PT said is funny), the pin can fall out that way. If the pin is screwed down, it's not going to fall out due to vibration, etc..

It's the same with roller fairleads that use nuts/bolts (not c-clips). If the nuts are on the bottom, even if you loose your nuts the bolt will retain your roller(s).
Click to expand...

Given the fact that bow shackles are to be loosened slightly once tightened onto a strap, etc, that doesn't seem consistent.

If bow shackles are tightened fully, if a load is placed upon them, they can bind and you'll need a torch to get it off. Temp changes can also tighten them up to where one can't remove them.

AFIRover tightened the shackles down on his truck and I ended up using a cut-off wheel to remove it as it was that tight.

I've never understood the hatin' on the Tractor store. What's wrong with their bow shackles?
 
garrett

garrett

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Jun 18, 2004
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Middleburg, VA
www.blackdogmobility.com
I drove 5,000 miles with a D shackle attached to my truck. Much of it gravel road. The pin never came out. If you're really that worried about it coming out, duct tape it.

Be sure to back the pin out a full turn before using them for anything. :) (EDIT: Like PT said)
 
ptschram

ptschram

Well-known member
Sep 27, 2004
21,955
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In the shop doing the Lord's work one broken Rover
www.ptschram.com
garrett said:
I drove 5,000 miles with a D shackle attached to my truck. Much of it gravel road. The pin never came out. If you're really that worried about it coming out, duct tape it.

Be sure to back the pin out a full turn before using them for anything. :) (EDIT: Like PT said)
Click to expand...

I've seen some with lanyards to keep from losing the pin. Having dropped them in the mud, I like that idea! I've used a cable tie when I've felt paranoid.

A 1/4 turn is usually enough to release tension on the pin and still retains plenty of engagement.
 
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