GEt a good pressure gauge that reads 0-20 PSI at full scale
Start with 15 and go down 1 psi at a time till you find a pressure that is right for you.
And remember on a hot day it will be higher & on a cold day it will be lower
Low in the morning & high in the afternoon .
When you find what works for you mark the gauge so you know what pressure ON YOUR GAUGE works well for you
My tire pressures are not listed in the Specifications section of my manual. I found the information elsewhere in the manual.
#6
Hammermechanicman
The MAX inflation pressure will be on the side of the tire. Run any pressure you like up to that max. I doubt varying the tire pressure will make a big difference in how your Z holds a slope. My IS3100z weighs about 700lb and holds a slope better than any lighter homeowner grade Z. Different tire pressure doesn't seem to make any difference in how it holds a slope.
12 to 15 psi.
If it’s not climbing hills, it could be your hydros.
Does it have enough oil in the hydros?
Does the mower have over 100 hours? If so, has the fluid and filters been changed in the hydros?
