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  1. #1

    Join Date
    Oct 2002
    Central Ma
    JD 4310 hydro, 4wd

    Default Correct tire pressure

    Can anyone tell me what the correct tire pressure is for a 4310 with a 430 FEL and 47 BH? My manual does not give any guidelines on this. Thanks

  2. #2

    Join Date
    Apr 2000
    too many

    Default Re: Correct tire pressure

    There's a chart on page 47 in the operating manual that
    gives maximum pressure allowable for each size/type of tire.

    I would suggest weighing the tractor on a truck scale one
    axle at a time.

    Sometimes dealer specs don't seem to jive with what an accurate
    scale says.

    From that you can see where you are weight wise. Normally
    airing up a tire to max isn't always required if that load
    isn't going to be reached. If it has R1 tires I'll bet it
    will need to be set at max with a loader and backhoe.

    The R4s have the capability to hold much more weight so may
    be able to survive lower pressure. Less pressure usually
    gives better ride and wider footprint. Too little pressure
    may "help" tire dismount rim. [img]/forums/images/graemlins/shocked.gif[/img]

    Sometimes you can get a chart from a tire manufacturer that
    shows what pressure should be run with what weight. The bucket
    capacity's probably about 1/3 yard. 1/3 yard drain rock weighs
    about 900 pounds. The loader will lift far more from the ground
    to about 4 feet then the specs for max height show. I'd guess
    that loader would probably lift 1500 or more pounds. So use
    that in your tire pressure figures.

    Less pressure might allow the tire to "give" a little over
    something sharp then accepting a puncture.

    My 2cents...


  3. #3
    Elite Member RalphVa's Avatar
    Join Date
    Dec 2003
    Charlottesville, VA, USA
    JD 2025R, previously Gravely 5650 & JD 4010 & JD 1025R

    Default Re: Correct tire pressure

    Try searching for this. There was a discussion among the old stuff I looked through when I first got on here.

    Think the min pressure needs to be somewhere around 14 psi just to keep the bead from moving relative to the wheel. This is what some folks reported.

    Don't think you have a tire heatup problem with low pressures as is the case with car tires. Lower pressures allow more of the tire to imprint upon the pavement/soil, but limited by the bead-to-wheel contact necessary.


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