Results 1 to 7 of 7
  1. #1
    Member
    Join Date
    Dec 2010
    Posts
    34
    Location
    Idaho
    Tractor
    Kubota B7610, Kubota B1550

    Default Hydraulic Squeal Kubota 7610 HST

    Hoping someone can give me an idea what this noise is about. I'm getting an intermittent squeal kinda like older cars power steering when the wheel is cranked. It happens only when the speed control pedal is advanced. It's worst with rapid forward acceleration, but also in reverse but with a lower pitch and not as loud. It stops with easing off the pedal. Slow speed is OK. No change with loader, 3 point and PTO operation. The hydraulic fluid level is good, looks clean.

    I'm snowblowing with a 3 pt blower. Wondering if the hydraulic pump or drive motor is going bad or what. I have not tried changing the filter yet. Tractor has about 500 hrs.

    Thanks for any input.

  2. #2
    Elite Member
    Join Date
    Sep 2010
    Posts
    4,085
    Location
    ONTARIO
    Tractor
    MASSEY, CASE , FARMALL

    Default

    I would try a fluid change. The noise from the way you described sounds like the pump is at its load limit. All hydro drives have a wine to them.

  3. #3
    Member
    Join Date
    Dec 2010
    Posts
    34
    Location
    Idaho
    Tractor
    Kubota B7610, Kubota B1550

    Default Re: Hydraulic Squeal Kubota 7610 HST

    Quote Originally Posted by MIKE R View Post
    I would try a fluid change. The noise from the way you described sounds like the pump is at its load limit. All hydro drives have a wine to them.
    I was thinking a plugged filter might cause it. It's certainly not a normal HST sound. It's loud and nasty when it happens.
    Thanks for the reply.

  4. #4
    Member
    Join Date
    Dec 2010
    Posts
    34
    Location
    Idaho
    Tractor
    Kubota B7610, Kubota B1550

    Default Re: Hydraulic Squeal Kubota 7610 HST

    I just had a service tech tell me the front d-shaft might cause this sound so I'll be looking at that.
    Guess I should not assume it is hydraulic in origin.

  5. #5
    Gold Member peterc38's Avatar
    Join Date
    Aug 2006
    Posts
    492
    Location
    Maine

    Default Re: Hydraulic Squeal Kubota 7610 HST

    Quote Originally Posted by Ideehoan View Post
    I just had a service tech tell me the front d-shaft might cause this sound so I'll be looking at that.
    Guess I should not assume it is hydraulic in origin.

    Read post #15 in this thread:

    http://www.tractorbynet.com/forums/k...g-noise-2.html
    Kubota L3200 w/ LA524 FEL
    Landpride RCR 1860 rotary cutter
    Landpride RB1684 rear blade w/ hydraulic angle
    Woods GB60 boxblade
    John Deere X500
    Kubota B7610 w/LA352 FEL (sold)
    Husqvarna 562XP
    Husqvarna 371XP
    Husqvarna 346XP
    6 x 10 Dump Trailer
    22 ton Speeco Logsplitter
    2 Great Danes
    Vive l'acadie!

  6. #6
    Member
    Join Date
    Dec 2010
    Posts
    34
    Location
    Idaho
    Tractor
    Kubota B7610, Kubota B1550

    Default Re: Hydraulic Squeal Kubota 7610 HST

    Aha! I suspect this is it. I'll post a report.
    Thanks!

  7. #7
    Member
    Join Date
    Dec 2010
    Posts
    34
    Location
    Idaho
    Tractor
    Kubota B7610, Kubota B1550

    Default Re: Hydraulic Squeal Kubota 7610 HST

    Problem solved. Quite a relief, a few squirts of wd 40 took care of it.
    There's a plastic shield around the front d shaft. It has a semi snug fit so it's in contact with the shaft. If it happens again I'll try sprayable grease like lithium or chain lube.

    Thanks Peterc38!

Similar Threads

  1. TC 26 HST Squeal When Cold
    By Nick220 in forum New Holland Owning/Operating
    Replies: 2
    Last Post: 03-03-2012, 01:09 PM
  2. B7100 HST-E squeal transmission startup
    By futch in forum Kubota Owning/Operating
    Replies: 2
    Last Post: 06-21-2009, 11:48 PM
  3. Price Check Kubota 7510 or 7610 HST pricing, ETC ?
    By Cedar in forum Kubota Buying/Pricing
    Replies: 11
    Last Post: 05-09-2007, 03:50 PM
  4. Hydraulic Squeal
    By tractor kid in forum Parts/Repairs
    Replies: 5
    Last Post: 08-10-2006, 02:29 PM
  5. Hydraulic Squeal
    By tractor kid in forum Hydraulics
    Replies: 5
    Last Post: 08-10-2006, 02:29 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2014 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.