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01-10-2013, 10:09 PM #1
- Join Date
- Dec 2010
- Posts
- 34
- Location
- Idaho
- Tractor
- Kubota B7610, Kubota B1550
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.
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01-10-2013, 10:33 PM #2
- Join Date
- Sep 2010
- Posts
- 4,100
- Location
- CANADA
- Tractor
- Many
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.
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01-11-2013, 02:40 AM #3
- Join Date
- Dec 2010
- Posts
- 34
- Location
- Idaho
- Tractor
- Kubota B7610, Kubota B1550
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01-11-2013, 05:30 PM #4
- Join Date
- Dec 2010
- Posts
- 34
- Location
- Idaho
- Tractor
- Kubota B7610, Kubota B1550
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.
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01-11-2013, 06:40 PM #5
Re: Hydraulic Squeal Kubota 7610 HST
Read post #15 in this thread:
http://www.tractorbynet.com/forums/k...g-noise-2.htmlKubota L4060 Cab HST
Landpride RB1684 rear blade w/ hydraulic angle
John Deere X500
Husqvarna 562XP
Husqvarna 371XP
Husqvarna 346XP
6 x 10 Dump Trailer
22 ton Speeco Logsplitter
2 Great Danes
Vive l'acadie!
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01-11-2013, 07:00 PM #6
- Join Date
- Dec 2010
- Posts
- 34
- Location
- Idaho
- Tractor
- Kubota B7610, Kubota B1550
Re: Hydraulic Squeal Kubota 7610 HST
Aha! I suspect this is it. I'll post a report.
Thanks!
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01-13-2013, 01:27 PM #7
- Join Date
- Dec 2010
- Posts
- 34
- Location
- Idaho
- Tractor
- Kubota B7610, Kubota B1550
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!
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