Tires loaded rear tires

[HEC]

I have loaded rear tires and was wondering if you guys who have loaded rear tires run the same air pressure . The salesman mentioned I could run much lower pressure with loaded tires . I wasn't sure if he was correct in saying that or not , or just trying to make a sale . The reason for less pressure was so it would go through my garage door opening . The book not being loaded says 20 psi..

 

[TerryR]

I don't know why you would run at lower pressure. If running at less pressure makes the tires enough flatter to make a difference it seems to me it will have a very negative impact on tread wear. Sounds to me like he's trying to make a sale based on invented information.

Terry

 

[k0ua]

I have always read you run the same pressure, loaded or not. It is what I do. I run the recommended by the manual pressure which is 20 lbs for my rear tires.

 

[whistlepig]

It would not matter to the tire loaded or not if inflated at the recommended tire pressure. Unless your dealer has an argument otherwise.

 

[MHarryE]

Not according to the Tire and Rim Association (the association that controls the tire standards) plus all the major tire makers. In fact they state the total tire load should be included in the inflation pressure. Note the sidewall will state the maximum inflation pressure, but the load/inflation tables published by the T&R Assn plus the manufacturers will show the tire load capacity for various pressures. As an example, the 17.5Lx24 R-4 tires on my CUT are rated for 4400 lb each at 20 psi and 5360 lb at 26 psi (the 26 psi pressure requires an 8 ply tire. I don't know of any CUT that comes close to putting 8800 pounds on the rears even filled so 20 psi is the max and min for the 6 ply tire. So you need to keep the same pressure. These numbers are for R-4 tires. R-1 tires of the same size have a much lower capacity, 3080 pounds at 16 psi for the 17.5L x 24 tire. The T&R Assn recommends 55 gallons in that tire size for 459 pounds water plus whatever anti-freeze solution used (600 lb with CaCl).

 

[oosik]

My rear tires are filled with Rimguard and I run them at the pressure recommended by both Kubota & Goodyear. I would think if you under inflate a loaded tire - it would be exposed to additional, unintended tread and sidewall wear and particularly sidewall damage.

Here is a thought - if your tractor is open station and you are needing to reduce overall height, fold your roll bar. I certainly have my roll bar folded to get into the stall space for my tractor.

 

[Pepsiboy]

I have a BX 2350 with loaded tires. I had fluid put in for the added traction I would get on the hills I have here. I was told to use the recommended inflation pressure in all tires as stated on the tires. I run 30 psi on all 4 tires. Have had it for 4 years with NO PROBLEMS at all. I like the extra traction I get, and the better balance when lifting heavy weight with the FEL.

Keep it maintained, and you will be VERY happy with your orange.

 

[HEC]

Thanks everyone for the info , I am going to put the 20 lbs back in based on your information . I have a cab so I can not lower that any . It's a tight squeeze but it will fit in my garage after I did a little work on the door and frame . It's amazing what someone will do to make a sale , he even gave me a wrong measurement on the overall height of the tractor right there in front of me doing the measurement . They lowered the air pressure later after filling the tires with rimguard to almost nothing hoping it would fit upon delivery , thinking I wouldn't check the pressure at some point I guess . Oh well things worked out okay anyways .

 

[coobie]

I have loaded rear tires and was wondering if you guys who have loaded rear tires run the same air pressure . The salesman mentioned I could run much lower pressure with loaded tires . I wasn't sure if he was correct in saying that or not , or just trying to make a sale . The reason for less pressure was so it would go through my garage door opening . The book not being loaded says 20 psi..

Nothing better than a uneducated salesman telling ya what to do.LOL

 

[RaydaKub]

The pressure in the tires is going to keep the bead seated on the rim. That doesn't change whether it is loaded or not. Glad you were able to adjust the door enough to make it work.

 

[HEC]

It sure is a pain trying to check the air pressure with that stuff that they loaded them with. Even with the valve on top like it should be a little of that stuff comes out and fills up the air gauge so it doesn't work right .

 

[TerryR]

You need a "tractor" gauge, designed for use with fluids. They have a spring that pushes the stem back in and the fluid out. That does mean you need to read the gauge while it's on the fitting, or hold the stem with your fingers when you remove it until you can read it. A tractor supply or good hardware should have them.

Terry

 

[oosik]

Even with a tractor gauge, I do this. Valve stem at top dead center, take your air hose and blow a blast of air into the tire - this will clean anything out of the stem. With the stem cleared, go ahead and take the pressure reading.

 

[k0ua]

Even with a tractor gauge, I do this. Valve stem at top dead center, take your air hose and blow a blast of air into the tire - this will clean anything out of the stem. With the stem cleared, go ahead and take the pressure reading.

That is exactly what I do, and don't have a problem with a non liquid gauge.

 

[boggen]

i run tubes in all my tires. personally like to keep a lower PSI in tires. i doubt i could notice it myself, but little more tread touching the ground for traction, and a little bit more suspension on hard ground and little bumps all over the place. granted when i go and do stuff that requires heavy weight to be lifted / heavy pulling, the PSI goes up.

 

[HEC]

That's interesting about a tractor gauge as I didn't know about them. I will pick up one at tractor supply.I like the idea about the tubes , but it is to late for that now .
Thanks everyone