Kwick strange noise when tractor is moving

[Serge]

My kubota b21 make strange noise. Not on idle more when I go backward. It’s a strident noice like metal on metal rubbing. It doesn’t seems to come from whells. Does somebody could give me a hint where to look that would be appreciated

 

[North Idaho Wolfman]

First check the lug nuts

 

[chim]

Serge, Welcome aboard! Can you tell us more about the noise? And don't worry about spelling. We don't all speak the same

 

[Serge]

Serge, Welcome aboard! Can you tell us more about the noise? And don't worry about spelling. We don't all speak the same

I desengaged the front wheel and the noise stop. So it’s somewhere on the front drive. The noise is like when the belt slip on the alternator.

 

[Serge]

My kubota b21 make strange noise. Not on idle more when I go backward. It’s a strident noice like metal on metal rubbing. It doesn’t seems to come from whells. Does somebody could give me a hint where to look that would be appreciated

I have desengaged the front drive and the noise stop. So it’s a front drive problem. The noise is like when an alternator belt slipped

 

[chim]

I can't think of what the problem may be. Hope someone with more knowledge can help.

 

[Serge]

Thank you for the try

 

[ve9aa]

Just as one idea, have you checked the hydraulic fluid level in the front axle Serge>?
(and did you check the torque on the lug nuts as suggested by the Wolfman- NIWM ?

 

[Serge]

Just as one idea, have you checked the hydraulic fluid level in the front axle Serge>?
(and did you check the torque on the lug nuts as suggested by the Wolfman- NIWM ?

It doesn’t make sense the noise come from around the alternator belt. I can hear the noise only on 4 wheels drive .

 

[Serge]

I have desengaged the front drive and the noise stop. So it’s a front drive problem. The noise is like when an alternator belt slipped

It really come from auround the alternator belt. But it doesn’t make sense that the noise occurred only when I put the 4 wheels drive.

 

[North Idaho Wolfman]

It really come from auround the alternator belt. But it doesn’t make sense that the noise occurred only when I put the 4 wheels drive.

You've got to quit answering yourself, it's creepy!

Look at the propeller shaft cover.

 

[Serge]

You've got to quit answering yourself, it's creepy!

Look at the propeller shaft cover.

It’s not the propeller shaft cover

 

[cthomas]

Take alternator belt off and reevaluate. Have you owned the tractor long? Wondering if the tire rolling circumference is greater than tolerance. Has the front axle been greased lately? Can you put in neutral and 4wd engage and push the tractor by hand.

 

[Serge]

Take alternator belt off and reevaluate. Have you owned the tractor long? Wondering if the tire rolling circumference is greater than tolerance. Has the front axle been greased lately? Can you put in neutral and 4wd engage and push the tractor by hand.

Is there a zurt somewhere to grease the front axle

 

[ve9aa]

Is there a zurt somewhere to grease the front axle

Did you check the fluid level in the front axle? ( cap/dipstick)

 

[cthomas]

Should have one or two, look at pivot point for a zerk, maybe in center front of it.

 

[North Idaho Wolfman]

Is there a zurt somewhere to grease the front axle

No zerk, The pivot is lubed by the oil in the front axle.

 

[Runs With Scissors]

It doesn’t make sense the noise come from around the alternator belt. I can hear the noise only on 4 wheels drive .

Although this will not help you, noise's can be very deceiving.

I always hated reading on the work order "Customer say its squeaks when going over bumps at 43 mph"

When I was at the dealership they sent me to NVH classes (Noise, Vibration , and Harshness)

We hooked up 2 sensors then drove the Jeeps around and then we had to fill out a sheet with all the diameters of the pulleys and tires and such.

I'll be damned. It actually worked most of the time.

 

[D2Cat]

Although this will not help you, noise's can be very deceiving.

I always hated reading on the work order "Customer say its squeaks when going over bumps at 43 mph"

When I was at the dealership they sent me to NVH classes (Noise, Vibration , and Harshness)

We hooked up 2 sensors then drove the Jeeps around and then we had to fill out a sheet with all the diameters of the pulleys and tires and such.

I'll be damned. It actually worked most of the time.

What did the diameter dimensions tell you?

 

[Serge]

Take alternator belt off and reevaluate. Have you owned the tractor long? Wondering if the tire rolling circumference is greater than tolerance. Has the front axle been greased lately? Can you put in neutral and 4wd engage and push the tractor by hand.

I removed alternator belt and noise still persists. Oil level ok but there is a sleeve damaged on the front axle it doesn’t look very deep. Your opinion