retired2002
New member
how much air should one have in front tires on L3800 with ag tires. i cheched them and found they had 40 lbs i beleive thats too much?
Tires air in front tires
- Thread starter retired2002
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MHarryE
Elite Member
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- Feb 15, 2009
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- Northeastern Minnesota
- Tractor
- Kubota M7-171, M5-111, SVL75-2, RTV900XT & GR2120; CaseIH 1680 combine
Is the max inflation pressure shown on the sidewall? If it is a 7 - 16 with 6 ply rating the pressure would be 36 psi. The spec sheet says 7.2 - 16 but I don't find that size in Bridgestone - Firestone or Titan - Goodyear books.
OP
retired2002
New member
yes they are new 36 hrs on machine
Gordon Gould
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- NorthEastern, VT
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- Kubota L3010DT, Kubota M5640SUD, Dresser TD7G Dozer
I have 7.2 - 16 Goodyear front tires on my L3010. Manual says 22 psi. Loader manual says to increase to 26 psi with loader.
Artisan
Veteran Member
Hard to beat mfg specs. What does it say on the tire itself?
art
Super Member
Tires are designed to carry a full foot print on the ground. This does change depending on load so if you have a loader and enjoy carrying large loads you will need more air pressure then if you don't have a loader and might be using the three point to carry loads.
The pressure makes a big difference as far as ride as well so it is important not to over inflate same as having the tires filled.
The pressure makes a big difference as far as ride as well so it is important not to over inflate same as having the tires filled.
After you determine your tire size this is what the tractor and loader manuals calls for.
According to this chart 40psi is too much but to confirm that your tire should have a max tire pressure rating.
I have the r4 tires on my 3800 but from what I've heard the r1 tires are a softer tire so maybe your dealer airs the front tires
up with a little extra psi when leaving with a loader.The manual doesn't support that assumption tho.
front tires sizes
5.00-15 4pr =32psi
7-16,6pr=26psi
23x8.50-12 4pr=23psi
25x8.50-14 6pr=23psi
27x8.50-15 6pr=30psi
rear tire sizes
11.2-24 4pr=14psi
13.6-16 4pr=14psi
15-19.5 6pr=30psi
According to this chart 40psi is too much but to confirm that your tire should have a max tire pressure rating.
I have the r4 tires on my 3800 but from what I've heard the r1 tires are a softer tire so maybe your dealer airs the front tires
up with a little extra psi when leaving with a loader.The manual doesn't support that assumption tho.
front tires sizes
5.00-15 4pr =32psi
7-16,6pr=26psi
23x8.50-12 4pr=23psi
25x8.50-14 6pr=23psi
27x8.50-15 6pr=30psi
rear tire sizes
11.2-24 4pr=14psi
13.6-16 4pr=14psi
15-19.5 6pr=30psi
bigbull338
Elite Member
the best an safest thing todo about tire pressure is look in your tractor manual ango from there.
When they were installed they probably put that much pressure to seat the bead and never let the pressure down.
