Looking for 24mm or 15/16" pins

[sunandsand]

There is a lot of things I would not do a ROPS ( weld/cut/drill a new hole but the minimal oversize hole and a real pin setup would be undetectable IMO
if we all abided by the should not do thinking there would be no home made attachment section lol

I agree, the ever-so-slightly enlarged hole would probably not be noticed. If however the failure of the ROPS was involved, you can absolutely bet it is going to be examined with an electron microscope.

Non-safety-related modifications are one thing, even though manufacturers sometimes try to void warranties because you modified "X". I wouldn't touch anything safety related, especially if the corporate lawyers made the company add warning labels and decals on the equipment.

Paranoia? Perhaps, but I've been in several businesses that have high liability potential (motorcycles, airplanes).

In the early 70s, someone was making polycarbonate motorcycle helmets, allegedly cheaper and stronger than fiberglass. I watched one break in half after being dropped two feet onto the pavement. Manufacturer claimed painting it weakened it and voided the warranty. They're long out of business. The helmet in question wasn't even painted - the product was cr*p from the get-go.

I have also participated (expert witness) in a lawsuit in which the attorney successfully sued Marvel-Schebler (aircraft carburetors) and won a $50MM judgement despite the fact that the laws of physics govern the operation of a carburetor, not the laws of man. In my opinion, the suit was groundless - no pun intended - (pilot didn't use carb heat, iced up, lost power, wound up in the trees, was pretty much unhurt) but the jury felt otherwise.

Here's another example - FAA wants a decal visible to the pilot in my Cessna 150 "Spins prohibited." The airplane is not considered airworthy without it (!). If I bang up my airplane, one of the things the insurance company WILL be looking for is that decal. Airplane not airworthy, we won't pay.

So I ask you, are you willing to have your fate decided by a dozen random people who weren't even smart enough to get out of jury duty?

Find the correct pin for the ROPS. Preventive law (in this case, just prevention) is far, far cheaper and much less stressful than curative law.

Be safe out there - Darwin is watching and he doesn't take vacations.

Best Regards,
Mike/Florida

 

[SPYDERLK]

I measured it, it's definitely 24mm.

Dealer recommended a 24mm bolt. I'd need to figure out a way to keep the nut from rattling off but still make it quick removal.

If jinma will not supply the part, get the material spec, or a reason in writing why not, before you make one.

Otherwise, throwing away the tractor
may be the only option.​

 

[sixdogs]

I agree, the ever-so-slightly enlarged hole would probably not be noticed. If however the failure of the ROPS was involved, you can absolutely bet it is going to be examined with an electron microscope.

Non-safety-related modifications are one thing, even though manufacturers sometimes try to void warranties because you modified "X". I wouldn't touch anything safety related, especially if the corporate lawyers made the company add warning labels and decals on the equipment.

Paranoia? Perhaps, but I've been in several businesses that have high liability potential (motorcycles, airplanes).

In the early 70s, someone was making polycarbonate motorcycle helmets, allegedly cheaper and stronger than fiberglass. I watched one break in half after being dropped two feet onto the pavement. Manufacturer claimed painting it weakened it and voided the warranty. They're long out of business. The helmet in question wasn't even painted - the product was cr*p from the get-go.

I have also participated (expert witness) in a lawsuit in which the attorney successfully sued Marvel-Schebler (aircraft carburetors) and won a $50MM judgement despite the fact that the laws of physics govern the operation of a carburetor, not the laws of man. In my opinion, the suit was groundless - no pun intended - (pilot didn't use carb heat, iced up, lost power, wound up in the trees, was pretty much unhurt) but the jury felt otherwise.

Here's another example - FAA wants a decal visible to the pilot in my Cessna 150 "Spins prohibited." The airplane is not considered airworthy without it (!). If I bang up my airplane, one of the things the insurance company WILL be looking for is that decal. Airplane not airworthy, we won't pay.

So I ask you, are you willing to have your fate decided by a dozen random people who weren't even smart enough to get out of jury duty?

Find the correct pin for the ROPS. Preventive law (in this case, just prevention) is far, far cheaper and much less stressful than curative law.

Be safe out there - Darwin is watching and he doesn't take vacations.

Best Regards,
Mike/Florida

Excellent post.

Another consideration is when the time comes to sell a tractor. I would not buy one that had the slightest modification to the ROPS. May be no big deal to the seller but it would to me as a buyer.

Don't disclose something material like an undisclosed ROPS modification and if the new buyer has an accident, any attorney will find some way to make an issue of it.

 

[grsthegreat]

Oh brother. Enlarging a mounting hole, basically the thickness of paint, would never stop me from purchasing something. I modify, and usually improve, many things.

 

[quicksandfarmer]

I have a residence in Wakefield Ri.
I also work at a Mahindra dealership.
If you’d like, you can provide me with your remaining pin and I can see if we have anything in stock to match.

This is a very kind offer, thank you. Unfortunately I'm at the eastern extreme of the state and i don't get over there much. But I might take you up on it if I find myself over there.

Just for context, here are a couple of pictures. This is the ROPS hinge mechanism. To fold it, the pin in question is removed and it pivots around the bolt and nut until the other two sets of holes meet, then the pin is re-inserted to hold it locked in the down position.

This is a closeup of the pin. Overall length is 100mm or 3.9 inches, diameter is 24mm.

 

[sunandsand]

GRS, I mostly agree with you. I also modify all kinds of things, and usually (hopefully) improve them for my uses. I'm absolutely not saying don't touch anything, that the factory knows best - often they demonstrably don't, and the vehicle does belong to us so if we want to change something, we can.

One thing I will not touch is safety equipment. As an example, I won't modify or disable the air bags in my cars. The manufacturer didn't install them out of the goodness of their hearts (although someone needs to tell them live customers buy more cars than dead ones) but because that very specific system and the way it operates it is required by law.

If I sold a car with an airbag system that I had modified and somebody got hurt, I'd be in BIG trouble. As far as I'm concerned, air bags and other directly safety-related devices and systems are a non-negotiable no-touchie, I am not going to change them or affect their operation in any way - even if I do have a good idea about how to make them actually work better.

Here's a good example of how seriously product liability is taken.

Kidde has had to recall 27,000,000 fire extinguishers - yes, twenty seven million - because they have plastic handles which get brittle and break, so the extinguisher is useless even though it is full.

If you have a Kidde (or Kidde made, they have several sub-brands) fire extinguisher with plastic handles - and they are everywhere, homes, garages, RVs, boats - you can call Kidde's 800 number and they will send you a brand new metal handled fire extinguisher absolutely free!

I got six of them, eight more went to city hall, I am sure Kidde was less than happy about the whole thing BUT they've shown they want to ameliorate the problem so IF they get sued, they can say hey, we did everything we could to fix this.

This is an ongoing recall, so if you have plastic handles on a Kidde fire extinguisher, the call costs nothing and the replacement extinguisher costs nothing, and Kidde even pays the postage.

I completely agree that there is an utterly infinitesimal chance that this will blow up in the OP's face but since the proper fix - a new, correct pin - should be a few Google searches away, why take involved shortcuts?

(Interesting that the dealer said "use a bolt". I wonder how good his liability policy is? Bet he won't put that in writing, either.)

With Best Regards,
Mike/Florida

 

[michael.jones]

Can order from here.

https://www.bonehamusa.com/wp-content/uploads/2017/10/Clevis-Pins-Metric-ISO-DIN.pdf

 

[quicksandfarmer]

Can order from here.

https://www.bonehamusa.com/wp-content/uploads/2017/10/Clevis-Pins-Metric-ISO-DIN.pdf

Thanks. So they do exist. I emailed them, we'll see what they say.

 

[D&D]

Can order from here.

https://www.bonehamusa.com/wp-content/uploads/2017/10/Clevis-Pins-Metric-ISO-DIN.pdf

I know 7/8 is 1.775 mm (0.06988189 inch) undersize but they are available

McMaster-Carr

McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.

www.mcmaster.com

 

[SPYDERLK]

I know 7/8 is 1.775 mm (0.06988189 inch) undersize but they are available

McMaster-Carr

McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.

www.mcmaster.com

Math.