Sidewall pressures are NOT the max pressure the tire will stand without blowing up !!!My ztr manual says 15 psi rear, 20 psi front. Sidewall numbers are what the tire will withstand without exploding, not what works best for the mower the tire is on. Compare your door sticker on your vehicle to your tire sidewall. They will not be the same.
They are the pressure that will give the max load capacity for the tire -esp on autos.
Many small lawn tires say "inflate to 14 psi" and also say "When seating on rim do not exceed 40 PSI"
Car tire recommended pressures are a real mess and farse.
They almost always recommend lower pressure than the tire manufacturer would recommend for the weight esp on a pickup truck or ful size SUV.
This is usually for comfort ride but I think they also want to help sell new tires.
If you don't remember, go look up the Firestone Explorer tire debacle .
Wikipedia has a good page on it.
If they would not have recommended only 26 lbs in tires this would not have happened.
26 might be a bare minimum safe but few cars esp before TPMS had tires kept to recommended levels.
They got low. They eventually got aired back up.
If you recommend 32 and they get a little low... no blowouts. Start at 26 and they get low and problems.
BIG PROBLEMS in this case.
Every one of these tires had at least 35psi stamped on sidewall and possibly even higher number as many SUV tires are 44 or even 51 for max load.
I will never put less than 35psi in any automobile tire as I DO NOT give the manufacturer out that car the benefit of the doubt.
I know we're talking lawn and garden tires and they are far lower pressures and lower is usually better with more traction and more comfortable ride since we use them on damp grass and rough yards.