I found a quick way to flatten a tire ...

   / I found a quick way to flatten a tire ... #1  

CincyFlyer

Veteran Member
Joined
Jun 1, 2017
Messages
1,108
Location
West Chester
Tractor
Mahindra 2540
While pushing brush piles over a hill with my pallet forks (they were already on the thing; I'm now saving up for a grapple!) I snagged a log with my left front tire valve, and immediately snapped the thing off. Hisssssss ... followed by a [literal] sinking feeling. It likely wouldn't have happened with the bucket, as that's about six feet wide, matching the tractor, but the forks are only four feet wide.
The valve is a very common brass air & water valve (Dill TR 618a) so I ran to Tractor Supply to get one. Nope, not happening; the sell the filler kit to put water in through the valve, they sell car valves, but no tractor valves! Then I hit every tire and auto parts store nearby, and also found nothing equivalent. The local Discount Tire gave me a Dill truck valve, which is skinnier, but fits the same size (5/8") hole, and is long enough to be easy to get to.. As I have a bunch of stuff to do, including a few tons of gravel and sand that won't move themselves, I decided to go with the truck valve.
I put the forks on the ground and lifted the front of the tractor, and backed up about 100 feet to reasonably level ground. The tire was stuck to the rim, so I lowered the front end until the tires gripped a little, then turned the steering hard left and right, and broke the tire free. Then I "jacked" it back up with the forks. I had to use a drill to get the deformed end off (after filling the stem with grease to catch the chips, I'd be ever annoyed with chips in the tire) so that I could remove the nut. I used a very smooth combination wrench to pry the tire back far enough to get the old valve out (after threading some string through it; I didn't want to have to fish it out, and certainly couldn't have it live in my tire forever!)
I put in my new valve (using a valve pulling tool, never free-handing 'cuz the stems cannot be retrieved with a magnet), soaped up the tire and pushed it back and forth so that it appeared to be touching the rim evenly (it still being off the ground), and blasted it with 120 psi from a ten gallon portable tank. Luckily, it "caught" and I ended up with about 15 PSI, enough to drive a few hundred feet to the garage and finish the fill up. I took a few pics of the operation above.
I'm thinking of making valve stem protectors that bolt to the hub using the lugs; my only issue is that I don't want maintenance to be more difficult.
01valve.jpg02Grease.jpg03Drill.jpg04ValveDrilled.jpg05Rim.jpg06String.jpg07Out.jpg08Fini.jpg
 
   / I found a quick way to flatten a tire ... #2  
Thanks for posting. Someday soon I will do this too.
I'm not clear on why/what you had to drill out. Can you explain?
 
   / I found a quick way to flatten a tire ...
  • Thread Starter
#3  
Thanks for posting. Someday soon I will do this too.
I'm not clear on why/what you had to drill out. Can you explain?

Because the stem is brass, when the log folded and then snapped the stem, the end was deformed, and the nut would not come off. So by drilling it, I shortened it down to where the threads were good, and easily unscrewed the nut.
 
   / I found a quick way to flatten a tire ... #4  
My rims have half-round valve stem protectors and I have still managed to damage stems (and flatten the tire) twice back in the woods. I've thought of threading the protector (shield) so I could screw a solid cap over it...but haven't gotten beyond adding this idea to the to-do list.
 
   / I found a quick way to flatten a tire ...
  • Thread Starter
#5  
My rims have half-round valve stem protectors and I have still managed to damage stems (and flatten the tire) twice back in the woods. I've thought of threading the protector (shield) so I could screw a solid cap over it...but haven't gotten beyond adding this idea to the to-do list.

I'm thinking of something like hubcaps, with a flat and smooth disk exposed to the evil world. Maybe cut them out of 1/4" steel, and get a little free weight ...
 
   / I found a quick way to flatten a tire ... #6  
I have seen on construction equipment tires a plate that is welded to the rim that covers the back side of the valve as well as the two sides flush to the edge of the valve leaving the front open to access. I will get a picture if there is one to be found on the job I'm at. Of course this would be a bit of a job to get done but it would never happen again.
 
   / I found a quick way to flatten a tire ...
  • Thread Starter
#7  
I have seen on construction equipment tires a plate that is welded to the rim that covers the back side of the valve as well as the two sides flush to the edge of the valve leaving the front open to access. I will get a picture if there is one to be found on the job I'm at. Of course this would be a bit of a job to get done but it would never happen again.
That sounds interesting (except for welding to the rim, don't want to demount anything! Access is important; hard to access maintenance points tend to get ignored.
 
   / I found a quick way to flatten a tire ... #9  
Someone had pictures of a log skidder on here where they used a 1.5" long stub of 1.5" pipe with threads and a pipe cap. That way you remove the cap to check the air.

Aaron Z
 
   / I found a quick way to flatten a tire ... #10  
Pretty easy to DIY but I just snapped these pics of valve stem protectors on two of my New Holland wheel loaders.

IMG_2989.JPG

IMG_2991.JPG

Terry
 

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