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Rear Tire Pressure

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Dave (NE) View Drop Down
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Joined: 12 Sep 2009
Location: Eagle Nebraska
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave (NE) Quote  Post ReplyReply Direct Link To This Post Topic: Rear Tire Pressure
    Posted: 13 May 2022 at 3:30pm
I noticed the rear tires on my one-eighty looked a little low.  I have a Milton tire gauge that is for water/fluid tires, which the one-eighty has.  I filled the tire up to 12 to 15 psi per this gauge, but as it seemed to be taking quite a while I wondered if this gauge was working properly.  I used my regular tire gauge (non fluid gauge) and it indicated 25 psi.  I am comfortable with the 12-15 psi, but until I get a new fluid gauge to double check things, will 25 psi in a rear tire do any damage?  Thanks, Dave
Do not argue with an idiot. He will drag you down to his level and beat you with experience. Mark Twain.
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HudCo View Drop Down
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Joined: 29 Jan 2013
Location: Plymouth Utah
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Post Options Post Options   Thanks (0) Thanks(0)   Quote HudCo Quote  Post ReplyReply Direct Link To This Post Posted: 13 May 2022 at 8:00pm
do it with the valve stems at the top might not have as much fliud in one tire .   if fliud comes out with the valve stems at the top it has to much fluid in it ,when it has enought air in it to start to lift the outside edge of the tread off the cement  
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DSeries4 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DSeries4 Quote  Post ReplyReply Direct Link To This Post Posted: 13 May 2022 at 8:19pm
12 To 15 is enough.  25 Is way too much.  A guy I know got hurt real bad when the back tire exploded as a result of him over inflating it.

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darrel in ND View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote darrel in ND Quote  Post ReplyReply Direct Link To This Post Posted: 14 May 2022 at 7:53am
Most accurate way to do it, is use the liquid guage, put the valve stem at the bottom, then add xx pounds (unfortunately, I don't remember the exact number you're supposed to use) per each foot height of fluid above the valve stem.
Darrel
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200Tom1 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 200Tom1 Quote  Post ReplyReply Direct Link To This Post Posted: 14 May 2022 at 5:11pm
Dave, I can't count how many of those liquid gauges I have tossed in the grader ditch while driving the tire service truck from job to job. We never found a brand that lasted very long. I always had a half dozen new ones in the truck. When they get bad, they do exactually as you stated. There is some misinformation being stated here. If you have the right equipment, you can fill a rear tractor tire 90% full with no problems. I don't know what size tires you have on the tractor. If they are 18.4X30 or 18.4X28 18 lbs is the correct pressure to run in them, that is for bias ply tires. Radials can run up to 5 lbs lower pressure. You can go lower than those pressures but you defiantly run a risk of destroying the sidewalls in your tires. I can't recommend you run them lower than that, I've seen too many rears with decent tread destroyed because they were ran too low. When you are done checking the air/fluid in your tires, stick the business end of your air/water gauge in a pan of water or something like WD40 and pull the gauge out and in several times. This will rinse out the inside of your gauge. I always had a gallon or 2 of WD40 at the shop and would stick the business end of the gauge in that and pull it out and in. It seemed to help them last a little longer.
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KJCHRIS View Drop Down
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Joined: 21 Dec 2015
Location: WC Iowa
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Post Options Post Options   Thanks (0) Thanks(0)   Quote KJCHRIS Quote  Post ReplyReply Direct Link To This Post Posted: 15 May 2022 at 12:45am
Operator Manual says 16 PSI for min & max. 
 I try to get the valve near the top, give it a quick shot of air to clear the liquid, then use gauge to check. 
 FYI, 7:50 x 16 fronts are 20 - 36 PSI. 
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Dave (NE) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave (NE) Quote  Post ReplyReply Direct Link To This Post Posted: 15 May 2022 at 7:56am
Is there a risk with too much pressure in the tire?
Do not argue with an idiot. He will drag you down to his level and beat you with experience. Mark Twain.
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