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Old 03-14-2012, 02:54 PM
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brucew brucew is offline
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Default Going Nuts

I need some advice. I have a back blade that has two bolts/nuts that secure the blade to the frame. They are supposed to be used to allow the user to move the blade off center right to left.

Darn things keep comin' loose. I have used an impact wrench, but after grading the road in front of my house yesterday, they came loose again.

There is a solid washer, then a split washer, then the nut.

Any advice on how I can get these darn things to stay tight?
Thanks
Bruce
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Old 03-14-2012, 03:22 PM
tattoomike68 tattoomike68 is offline
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Use a nylock nut or a good lock nut.
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Old 03-14-2012, 07:30 PM
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LocTite thread locker.
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Old 03-14-2012, 07:33 PM
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two nuts on each, having two nuts has worked well for me
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Old 03-14-2012, 07:39 PM
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I have the best luck with the type of locknut that has been crushed a little, so it is actually a little bit oval.
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Old 03-14-2012, 07:54 PM
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You may need a larger flat to cover up the slot that is running North and South in your picture. If you take the flat washers off are they still flat? The jerking around tends to bend those up when they are not fully supported. Tight when flat, loose when bent up. I would try a custom made flat with a round hole for the bolt to pass through, cut to fill the channel north to south, then put your fasteners back on, get some heavy flat washers and the nylock nuts and you should be much better off.

I went back and looked at the pictures. Does the blade mount at the top? If so it would have a lot of twist to bend up the washers and make the nuts loose. What grade of fastener are you using?

Then I can really ask a silly question. Do you have a set of calipers? You could tighten up everything and measure from the end of the bolt to the face of the nut. Then when it is loose measure again and see what you get. Then you would know if the nut was coming loose or your setup was stretching.

Scott
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Old 03-14-2012, 07:54 PM
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Cross-threading works better than loctite
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Old 03-14-2012, 08:02 PM
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You need to replace the washers with 1/4" thick plates.
Be careful, the better you hold it the better chance you have Bending the frame or something on the Truck.
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Old 03-14-2012, 08:06 PM
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For sure throw away the split washer or lock washer they are worthless. Ni lock or crimp lock. I hate crimp loc nuts they are a bitch to work with.
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Old 03-14-2012, 08:55 PM
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Quote:
Originally Posted by digr View Post
For sure throw away the split washer or lock washer they are worthless. Ni lock or crimp lock. I hate crimp loc nuts they are a bitch to work with.
This is the way the back blade came. I had read somewhere that split washers do not do any good.

Quote:
Originally Posted by RancherBill View Post
LocTite thread locker.
Quote:
Originally Posted by SlagKing View Post
two nuts on each, having two nuts has worked well for me
I live about a 30 minute drive from anywhere and did not have any lock nuts big enough. I did have regular nuts that fit, so I did what slag suggested and put two nuts on them. I also had some blue locktite, so I put that on them also.

Thanks to everyone for your input. We'll see how well these hold now. I sure was getting frustrated. I appreciate everyone for taking the time to respond
Bruce
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