Claas Scorpion boom suspension

[John Deere 8530]

Does anyone have any ideas why the boom suspension might not be working on a 2012 claas scorpion 7045. It stopped working at about 2500 hours and after 4000 hours of bumpy riding I'm finally looking into it.

I've checked power at the switch, checked all the fuses and relays. There is still gas in the accumulator but don't the pressure. There is a valve block underneath in front of the pickup hitch that seems to work the suspension as the up/down pipes go to it. There is also a pipe from the large accumulator and a return pipe to tank. There are two solenoids also. When should these solenoids be getting power? I put a test light on the plugs to them and couldn't get any power no matter which switches were flicked.

Any help appreciated.

 

[milkloss]

On a jcb you would be replacing a pressure sensor on or near the main lift ram. Bounce won't turn on if there is pressure in the lift ram,

 

[davidroberts30]

fuse?relay?

 

[John Deere 8530]

On a jcb you would be replacing a pressure sensor on or near the main lift ram. Bounce won't turn on if there is pressure in the lift ram,

There is what looks to be a pressure sensor on the self levelling ram. But can't see any for the main lift/lower, hard to tell though as it's like a jungle in the back.
Could that sensor be working it? The sensor has 3 terminals but only wires to 2 of them. Would connecting the wires bypass it?

 

[John Deere 8530]

fuse?relay?

Tested all the fuses and swapped relays around but can't find any bad ones.

 

[milkloss]

There is what looks to be a pressure sensor on the self levelling ram. But can't see any for the main lift/lower, hard to tell though as it's like a jungle in the back.
Could that sensor be working it? The sensor has 3 terminals but only wires to 2 of them. Would connecting the wires bypass it?

not sure to be honest. On the tm310 the sensor on the lift ram itself starts to weep which is a telltale sign of failure (so I'm told anyway). It's a safety thing so that you don't pop it into bounce with a load on and tosh something you shouldn't as it drops.

i wouldn't have thought the sensor or the solenoid would be on the compensator ram as It doesn't have a direct connection to the lift ram...... only speculating here btw.

@ACEngineering is most likely to be the man in the know or at least have a much better idea than I do!

 

[John Deere 8530]

not sure to be honest. On the tm310 the sensor on the lift ram itself starts to weep which is a telltale sign of failure (so I'm told anyway). It's a safety thing so that you don't pop it into bounce with a load on and tosh something you shouldn't as it drops.

i wouldn't have thought the sensor or the solenoid would be on the compensator ram as It doesn't have a direct connection to the lift ram...... only speculating here btw.

@ACEngineering is most likely to be the man in the know or at least have a much better idea than I do!

Thanks for your help. Yeah hopefully he'll know what the problem is otherwise I'll have to take it to the main stealer.
Been following wires all morning and can't seem to find any problems but can't follow it through some of the places without taking looms to pieces.

 

[ACEngineering]

not sure to be honest. On the tm310 the sensor on the lift ram itself starts to weep which is a telltale sign of failure (so I'm told anyway). It's a safety thing so that you don't pop it into bounce with a load on and tosh something you shouldn't as it drops.

i wouldn't have thought the sensor or the solenoid would be on the compensator ram as It doesn't have a direct connection to the lift ram...... only speculating here btw.

@ACEngineering is most likely to be the man in the know or at least have a much better idea than I do!

Thanks for your help. Yeah hopefully he'll know what the problem is otherwise I'll have to take it to the main stealer.
Been following wires all morning and can't seem to find any problems but can't follow it through some of the places without taking looms to pieces.

Sorry no idea never worked on one.
It probably has a height cut off switch and something on the joystick to cut it off temporarily when lift and tilt is used?
And also a pressure switch screwed in to the lift ram on the lowering side which only let's you activate suspension if you power hard down?

But I don't know the machines at all.

 

[davidroberts30]

not sure to be honest. On the tm310 the sensor on the lift ram itself starts to weep which is a telltale sign of failure (so I'm told anyway). It's a safety thing so that you don't pop it into bounce with a load on and tosh something you shouldn't as it drops.

i wouldn't have thought the sensor or the solenoid would be on the compensator ram as It doesn't have a direct connection to the lift ram...... only speculating here btw.

@ACEngineering is most likely to be the man in the know or at least have a much better idea than I do!

the tm310 also has a sensor on the spool block

 

[John Deere 8530]

Sorry no idea never worked on one.
It probably has a height cut off switch and something on the joystick to cut it off temporarily when lift and tilt is used?
And also a pressure switch screwed in to the lift ram on the lowering side which only let's you activate suspension if you power hard down?

But I don't know the machines at all.

There is a height sensor but not sure what it's connected to.
I've tried looking for a wiring diagram but so far unsuccessful.
Thanks anyway, think I'll be heading to marshes next week.

 

[ACEngineering]

There is a height sensor but not sure what it's connected to.
I've tried looking for a wiring diagram but so far unsuccessful.
Thanks anyway, think I'll be heading to marshes next week.

this is the problem if you dont buy a machine thats popular unfortunately no one knows sod all about them and no info on line.

 

[davidroberts30]

Claas Scorpion Repair Manual For 9040, 7045, 7040, 7030, 6030 | PDF | Motor Oil | Axle

CLAAS Scorpion 9040 (404-03), 7045 (403-03), 7040 (402-03), 7030 (401-03), 6030 (400-01) repair manual

www.scribd.com

Dont know if this works

 

[beaconsboy]

I'd bet it's the accumalator or the solenoid. Had a few to go

 

[John Deere 8530]

Claas Scorpion Repair Manual For 9040, 7045, 7040, 7030, 6030 | PDF | Motor Oil | Axle

CLAAS Scorpion 9040 (404-03), 7045 (403-03), 7040 (402-03), 7030 (401-03), 6030 (400-01) repair manual

www.scribd.com

Dont know if this works

That’s ideal thanks. Have found some information in there including the diagram below.

 

[lexion780tt]

Is the orange light coming on the dash? If not most likely the tilt ram pressure switch take back pannel off to get to top of valve block the pressure sensor is on left side follow the pipes back from compensating ram and you will find it

 

[John Deere 8530]

I'd bet it's the accumalator or the solenoid. Had a few to go

Not sure if the accumulator has 25 bar in it however it still has some in it as a tried letting a bit out.
How could I test which solenoid it is?

 

[John Deere 8530]

Is the orange light coming on the dash? If not most likely the tilt ram pressure switch take back pannel off to get to top of valve block the pressure sensor is on left side follow the pipes back from compensating ram and you will find it

No the light doesn’t come on the dash. Could I bypass the switch by disconnecting it or joining the 2 wires together to see if that is the problem?

 

[lexion780tt]

If light is not on it's the switch on the back you can by pass it to try it but dont use it like that or it will break the compensating ram

 

[John Deere 8530]

If light is not on it's the switch on the back you can by pass it to try it but dont use it like that or it will break the compensating ram

Okay thank you. Can it be bypassed by just joining the 2 wires together?

 

[lexion780tt]

Yes just put a loop wire in it