Tire Pressure for Rears with Ballast

[Gryz]

I have a compact Yanmar SA424 and was wondering what the proper PSI is for the rear tires when they are loaded with ballast? I have searched and cannot find a definitive answer. I'm sure it depends on a few factors, so I could give more details if needed.

 

[kozal01]

When I received my Kioti from the dealer they had inflated the loaded tires to the recommended PSI listed in the manual.

 

[ericm979]

I'd use the same pressure as without ballast. I run the rear tires on my tractor at 15 psi.

 

[Forky]

Yep, same psi regardless of the ballast.

 

[Gryz]

Thank you. The manual says 30PSI for my R4 tires, which seems like a lot considering almost 75% of the volume is now filled with ballast.

 

[Locoweed]

If you used a ballast box have it mounted. Get your tires wet. Drive across dry concrete. Adjust tire pressure to just get full contact.

 

[oldnslo]

30 PSI for a rear tire seems high but possible. I think mine is around 15 rear and 25 front. I run the rears softer and have never had issue with bead slip.

 

[DK35vince]

I have R-4's and run 40 PSI front and 15 PSI rear with liquid ballast

 

[Gryz]

I have R-4's and run 35 PSI front and 15 PSI rear with liquid ballast

This is about what I assumed would be suggested. Guess I will start here and see how it goes.

 

[RjCorazza]

I run my front R4's at max sidewall pressure (45 in my case) because I use the loader a lot. Filled rears are 15 psi.