New Holland T7 front driveline knocking

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JohnDeere8530

Member

• Apr 18, 2024

• #1

Have a T7050 and it has suddenly developed a loud knocking noise below the flywheel that frequency is proportional to ground speed

Its seems to be the driveshaft to the front axle immediately where it comes out the front of the gearbox

anyone have a exploded diagram of this area. Any universal joints there or driveshaft connector collars etc ? To me it sounds like a uj assembly hitting the underside of the bell housing etc.

It is very hot there after the noise came on and a smell of burning

any ideas anyone ?

 

balerman

Member

Location

N Devon

• Apr 18, 2024

• #2

Someone will be along with a firm diagnosis soon im sure,but there is a bearing half way along the driveshaft that is known to give trouble.I think there is an upgrade to stop it going again.

 

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Lakesdigger

Member

• Apr 18, 2024

• #3

balerman said:

Someone will be along with a firm diagnosis soon im sure,but there is a bearing half way along the driveshaft that is known to give trouble.I think there is an upgrade to stop it going again.

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I think the one you mean usually burns the paint off the casting when it's knackered which would seem to be a possibility when the op mentioned a burning smell.

 

Longpod

Member

Location

Northamptonshire

• Apr 18, 2024

• #4

Sounds like the drive shaft bearing. Our T7050 did the same. Dont drive it until its fixed or it can get very expensive.

 

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Landrover

Member

• Apr 18, 2024

• #5

Drive shaft bearing, not a bad job of your handy with the spanners, your local NH dealer will have the full kit on the shelf..... It's very common !

 

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JeremyD

Member

Arable Farmer

• Apr 18, 2024

• #6

Axle off crap design!

 

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JohnDeere8530

Member

• Apr 18, 2024

• #7

Guess it’s an axle off job ? Hopefully bearing in front of gearbox on output shaft is ok.

 

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JohnDeere8530

Member

• Apr 18, 2024

• #8

Have another T7 stripped its splines on the hydraulic arms cross shaft. One of those days

 

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JeremyD

Member

Arable Farmer

• Apr 18, 2024

• #9

Yes have to drop axle pull forward. Not as bad as it sounds but heavy on your own! need pallet fork extensions to make it easier.

 

Blue.

Member

Livestock Farmer

• Apr 18, 2024

• #10

New Holland propshaft bearing

As the title says the propshaft bearing is about to go on my t7 230, tier 4b. All I want to know is will new Holland put anything towards the repair ? I'm sure I read on here somewhere that they do ? It's out of warranty. We've caught it in time so it hasn't damaged the shaft so hopefully just...

thefarmingforum.co.uk

Post number 7 no need to remove the axle.

 

J

JohnDeere8530

Member

• Apr 18, 2024

• #11

Blue. said:

New Holland propshaft bearing

As the title says the propshaft bearing is about to go on my t7 230, tier 4b. All I want to know is will new Holland put anything towards the repair ? I'm sure I read on here somewhere that they do ? It's out of warranty. We've caught it in time so it hasn't damaged the shaft so hopefully just...

thefarmingforum.co.uk

Post number 7 no need to remove the axle.

Click to expand...

Surely it will need dropping and pulling forward to access shaft ?

 

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JeremyD

Member

Arable Farmer

• Apr 18, 2024

• #12

JohnDeere8530 said:

Have another T7 stripped its splines on the hydraulic arms cross shaft. One of those days

Click to expand...

JohnDeere8530 said:

Surely it will need dropping and pulling forward to access shaft ?

Click to expand...

I couldn't see any another way other than dropping axle on our 7030..

 

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davidnh

Member

Location

Northern Ireland

• Apr 18, 2024

• #13

JohnDeere8530 said:

Surely it will need dropping and pulling forward to access shaft ?

Click to expand...

The axle suspension beam will need dropped then it can be accessed from there once its down

 

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JohnDeere8530

Member

• Apr 18, 2024

• #14

a big job ? Just been looking in YouTube but to no avail

 

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davidnh

Member

Location

Northern Ireland

• Apr 18, 2024

• #15

No its not too bad. If you have the workshop and resources to remove the axle it is probably quicker to remove the whole axle but yes it can also be done still attached to the tractor

 

Blue.

Member

Livestock Farmer

• Apr 18, 2024

• #16

Why would you go to the hassle of removing the axle when you can do it without?

 

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davidnh

Member

Location

Northern Ireland

• Apr 18, 2024

• #17

Blue. said:

Why would you go to the hassle of removing the axle when you can do it without?

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Once it’s dropped down there’s not much else besides the 2 pins to remove it and it’s more accessible once out compared to splitting the UJ and then removing it and splitting the new UJ for installing and replacing the bearings on the swivel as well

 

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oval

Member

• Apr 19, 2024

• #18

The fitters words when we had one go were if it’s been greased regular it will be a quick and easy job to strip and it was

 

cosmagedon

Member

Location

North Wales

• Apr 19, 2024

• #19

No need for the axle to come off, but you need to split the UJ in situ to do it that way.

The one I did destroyed the prop so bought a new one and ended up cutting the old one off. Not a bad job, just replace everything, I spent too long trying to save as much as I could before biting the bullet and ordering the kit.

 

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JohnDeere8530

Member

• Apr 19, 2024

• #20

I need to recover it 6 miles

if I took the 3 planet gears out of each epicyclic hub - it would be fine to drive as half shafts wouldn’t turn ?

Would I even need to replace the hub covers and fill with oil again as nothing would be rotating ?