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  1. #1
    New Member
    Join Date
    Oct 2010
    Posts
    2
    Location
    Central Texas
    Tractor
    JD 5303 JD 4020

    Default JD5303 Hydraulic pump rattle

    TBN Members,this is my first post so please excuse mistakes.
    I have a question about a 2008 5303 with a 512 JD loader.I bought this tractor new and I consider it to be a very good tractor that has done every thing I have needed,mostly pulling a 10' bush hog and moving round bales of hay.At full workimg temp with no load on the hydraulics at idle there is a rattle in the hydraulic pump.If I turn the steering wheel or move the loader just a little the rattle stops.All hydraulic functions wok as they should with plenty of power.I have talked to three dealers in the central Texas area and they say a little rattle is normal when there is no load on the pump.This pump rattle has not changed since the tractor was new and it now has 160 hours.I would appreciate the opinion of the pros that have given so much help to so many others.
    Thank you all

  2. #2
    Super Member Kyle_in_Tex's Avatar
    Join Date
    Oct 2002
    Posts
    5,390
    Location
    Giddings, Texas
    Tractor
    JD 4310,JD5420

    Default Re: JD5303 Hydraulic pump rattle

    My 4310 does the same exact thing. Wonder if its the pressure relief working? Let me know if you find out anything.
    there are 2 kinds of oats. Oats in front of a horse, and oats behind the horse.

  3. #3
    New Member
    Join Date
    Aug 2010
    Posts
    12

    Default Re: JD5303 Hydraulic pump rattle

    there's a touch of backlash in the pump drive gear. It won't hurt anything. That is a very common sound with gear driven pumps. My tractor has the same noise, at 2800 hours, and has for all the years I owned it.

  4. #4
    New Member
    Join Date
    Oct 2010
    Posts
    2
    Location
    Central Texas
    Tractor
    JD 5303 JD 4020

    Default Re: JD5303 Hydraulic pump rattle

    Thank you for the replies,I took the 5303 back to the dealer last week and the manager believed the rattle was a little more than normal.The dealer had to talk the area rep in to letting them replace the pump.I pulled a 10' cutter for a couple of hours yesterday to get it hot,now there is a little rattle from the pump but very much less than before.I believe you are right about it being gear noise.A dealer that wants to please its customers and a warranty is sometimes very nice to have.
    Thank you

  5. #5
    Platinum Member
    Join Date
    Sep 2010
    Posts
    796
    Location
    Virginia
    Tractor
    5210 MFWD

    Default Re: JD5303 Hydraulic pump rattle

    Suggest you look at this URL from John Deere on your tractor

    5000 series tractors with the 3 cylinder, 2.9L engine are assembled with spur cut gears in the front drive train. Spur cut gears are made with a backlash tolerance, which allows them to be slightly loose.

    Summary

    When the gears turn under a "no load" condition, the backlash will cause them to clank together. This is normal. When a hydraulic function is activated, a load will be transmitted across the gears and the noise should be eliminated.

    Front End Noise : Gear backlash causes noise on 5000 series tractors

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