Water and pressure

[1coolbanana]

Hi all
Sorry for the newbie question but searches have proved a little futile
Maybe Im doing it wrong?
Ive just received my new to me grey import refurbed 4WD L1-22, 26hp Kubota.

http://www.orangetractortalks.com/forums/showthread.php?p=89137#post89137

The tyres are 9.5 x 24 lug tire and 6 x 14 lug tire, carrying loader and 500 lbs on the 3 point so probably about 3500 lbs all up.

My questions are
The dealer filled the rear tyres with water and I mean really filled, all the way to the top!
Shouldnt they be filled only to about say the 2 or 3 oclock level?
It also came with 40 psi in the tyres, this sounds way too much, any recommendations?
Cheers and thanks for your time
Marc

 

[lsmurphy]

Mine are filled about 90%.

Keep the ballast above the wheel, less likely to rust.

The taller the tire the more air pressure.

Mine are 9.5x16 and I have about 35lbs in them so yours at 40lbs sounds about right.

 

[skeets]

Usually with the tires turned up so the valve stem is ay 12 o'clock and filled and when the fluid comes out the valve ( stem removed) that's when you stop.. what that does is give the tire some space for air, and pumped up to the required pressure , the air acts as a cushion for the water against the side walls so its not solid and they will flex just a little bit.
And that my friend is pretty full of fluid. SO when you check your air pressure make sure the valves are turned up to 12 o'clock that's, 1200 or 2400 if your ex military. Other wise your going to be buying new air gauges and your gona loose a lot of fluid,,

 

[1coolbanana]

Thanks fellas, much appreciated
Before I read this I dropped the pressures to 20 psi and over the same rocky, sandy, loose steep terrain, it felt awful while using the loader .
Ive since put the pressures back up
Feels a lot safer.
Cheers
Marc

 

[skeets]

Good on ya mate, glad we could help

 

[gpreuss]

I think Skeets is right about the fluid level. That is what the dealer did for me, and what I have seen recommended in several other places.
The tires should have the max pressure embossed in the side wall, along with the load rating, and it depends on the PLY rating. I'd check before I went much over 35psi.
Front tires should have a high ply rating, since they see the FEL load. Keep in mind that the FEL load is effectively doubled on the front axle.
I also figure that the load rating is based on you traveling at close to rated speed down the highway and hitting a pot hole. When you are loaded up, you generally are in a very low gear going slow and avoiding abrupt ledges. So it might not be tooo bad..

 

[Dan_R_42]

SO when you check your air pressure make sure the valves are turned up to 12 o'clock that's, 1200 or 2400 if your ex military. Other wise your going to be buying new air gauges and your gona loose a lot of fluid,,

If you are checking tire pressure on liquid filled tires, you may want to use this type of gauge. They are made for the application. I agree with skeets- check @ 12:00 position.


http://www.northerntool.com/shop/to...ci_sku=15904&gclid=CPrL3LKTn7wCFelxOgodvQcAWw

http://www.amazon.com/Milton-Tractor-Tire-Gauge-Filled/dp/B0000AXBXW

 

[1coolbanana]

Rear tires are a 9.5 x 24 8 ply radial lug, there are no markings on the tire indicating load rating or max pressure
Front are 6 x 14 8 ply lug (cross ply), also with no markings indicating load rating or max pressure

 

[North Idaho Wolfman]

A good pressure base would be Front 200kpa or 28psi, Rear 100kpa or 14psi, you can safely go higher than that because those #'s are based on 4 ply tires.

 

[1coolbanana]

Many thanks again