New holland front suspension problem

Mc115reed

Member

Livestock Farmer

• Feb 18, 2017

• #1

My new holland T7.210 front suspension has always seemed rough as hell to me like it isn't working... turn it off and no difference... dealer looked at it few months ago and said nothing wrong but it's horrendous really on the road... put a bit of weight on it and it's smooth as a baby bottom on the road?? Which tells me something's not working properly but then a bit of load on it's pushing it in?

 

del_boy

Member

Location

Herefordshire

• Feb 18, 2017

• #2

We have the same tractor and also a t7.200 both are very rough on the road. We have also have dealer out and fitted i think an extra accumulator which did help a little bit but still rough. The ride comfort is shocking with or without a weight on which is a shame as the tractors go well and are nice to drive.

 

Mc115reed

Member

Livestock Farmer

• Feb 18, 2017

• #3

If Iv say a weight on the front and a weight on the back to keep it balanced it's smooth as hell ... but nothing on the front and it bounces up and down like the bloody Churchill dog

 

GreaseMonkey

Member

Location

Norfolk

• Feb 18, 2017

• #4

Did they check the accumulator pressure? Did they calibrate it? If they calibrate it and it goes through that fine, the hydraulic side is working so would indicate an accumulator being low on Gas in my opinion.

 

M

mo!

Member

Mixed Farmer

Location

York

• Feb 18, 2017

• #5

Have you got the tyre pressures set correctly? Mine is better with some weight on but not bad without.

 

del_boy

Member

Location

Herefordshire

• Feb 18, 2017

• #6

Ours has been calibrated loads of times because we were always complaining and it goes through the calibration process ok but makes no difference to the ride. We have a speed bump on the lane and when going over it you cant see nothing happening around the suspension to cushion the bump. Its been the same since new and both tractors are the same.

 

Mc115reed

Member

Livestock Farmer

• Feb 18, 2017

• #7

They calibrated it and checked the accumulator pressure and said there's nothing they can do about it.... I don't have the best of faith in the dealer to start with though so wouldn't trust them... can I calibrate it or is it laptop job?

 

del_boy

Member

Location

Herefordshire

• Feb 18, 2017

• #8

I think you need the special plug that goes into the pillar to get into the calibration mode. Once in though i think its straight forward to do

 

GTB

Never Forgotten

Honorary Member

Location

Ceredigion, wales

• Feb 18, 2017

• #9

Ours is the same. With a weight on it's far better but I don't like carrying a weight when there's no need for it.

 

doctorstinga

Member

• Feb 18, 2017

• #10

Hello!
I have a 165 and an error occurred TM P32 (PTO) knows someone that is faulty sensor or button?

 

ColinV6

Member

• Feb 18, 2017

• #11

Mine is also bouncy on the road, not horrendously bad but like you say not much movement from the suspension.. Someone was in with a John Deere 6r yesterday and you could see the suspension moving up and down a lot even just moving forwards and backwards in the yard.

 

Mc115reed

Member

Livestock Farmer

• Feb 18, 2017

• #12

Yeah Iv drove new hollands all my life and have drove deeres and Masseys and Iv never experienced anything like it from a tractor with front suspension.... generally if youv got suspension if you break real hard you'll see the nose dip and accelerate hard and it'll raise.... also can go over bumps and obviously see it moving but this just seems like it's turned off all the time....

 

DrDunc

Member

Livestock Farmer

Location

Dunsyre

• Feb 18, 2017

• #13

To see how much the suspension is actually traveling, a crude check that I used to do when developing bus suspension damper settings:

Put a cable around the suspension ram piston rod at the cylinder end. The cylinder then pushes the cable tie down when you go over a bump. The more compression travel used, the closer the cable tie ends up to the end of the ram.

To measure the rebound travel used, a bit of fishing line, or even strimmer plastic wire can be used, though a long cable tie will work at a push.

Fix one end of the "string" tightly to the end of the ram piston. Put another cable tie around the body of the piston and the string. This cable tie should be tight enough not to move, but still allow the string to be pulled through when the suspension extends (rebound travel).

You end up with a slack length trapped by the cable tie which corresponds to how much rebound travel is used.

It could be that your t7 is hardly moving without any front ballast because it's too highly pressurised (faulty pressure sensor), or that the damping is too severe when it's lightly loaded (accumulator orifice too small).

 

cvx175

Member

Location

cumbria

• Feb 18, 2017

• #14

I did here once of a kit available for swb pumas where a second low pressure accumulator could be fitted for when traveling with no weight on the front to smooth the ride better never seen any with it fitted tho

 

del_boy

Member

Location

Herefordshire

• Feb 18, 2017

• #15

cvx175 said:

I did here once of a kit available for swb pumas where a second low pressure accumulator could be fitted for when traveling with no weight on the front to smooth the ride better never seen any with it fitted tho

Click to expand...

I think this might be what we got fitted to our 2 at work but cant see any difference in ride after it was done. Its still nothing like a john deere suspension where you can actually see it moving as soon as you take off.

 

F

farmerbill

Member

• Feb 18, 2017

• #16

I agree with everyone in that JD are the only ones to have nailed it. It's liiterally like a floating axle, almost seems disconnected from the tractor with how well it floats over the bumps. What I can't understand is you never find it bumping out on its stops either.

 

GTB

Never Forgotten

Honorary Member

Location

Ceredigion, wales

• Feb 18, 2017

• #17

cvx175 said:

I did here once of a kit available for swb pumas

Click to expand...

What's the definition of a SWB Puma?

 

Chippy

Member

Location

Cumbria

• Feb 18, 2017

• #18

My T7.200 front suspension has stopped working completely so waiting for lloyds to come sort it. Seems like new holland have an issue with there front suspension looking at how many people have replied

 

D

d williams

Member

• Feb 18, 2017

• #19

Chippy said:

My T7.200 front suspension has stopped working completely so waiting for lloyds to come sort it. Seems like new holland have an issue with there front suspension looking at how many people have replied

Click to expand...

Ours had a problem th white sorted on a service under warranty

 

ColinV6

Member

• Feb 18, 2017

• #20

GTB said:

What's the definition of a SWB Puma?

Click to expand...

I'd say anything under the 180 model.

On NH the largest T7 Swb is the 225.