Case 521D no 4th gear

[Mobiltech]

I have a 521D that wont go above 3rd gear .Dash shows number 4 in middle but only 3 dashes on right side light up.
This loader is new to me so im wondering if its just programmed to limit 3rd only.
Any input on this would be great .
Serial number jee01417xx

 

[Mobiltech]

Any case guys with some input?

 

[alrman]

Sorry I can't be too specific here as I don't have any info at hand on these.
I would look at the speed sensor - on earlier models they would prevent 3rd & 4th from engaging when they failed...... your's is only 4th.....
Also, you need to look at the coil/s resistance at the transmission control valve.
Once again I can't be too specific, as there maybe a combination of coils energised to gain 4th gear.
So, if no one else chimes in here, a service manual is really your best bet........

 

[Mobiltech]

Sorry I can't be too specific here as I don't have any info at hand on these.
I would look at the speed sensor - on earlier models they would prevent 3rd & 4th from engaging when they failed...... your's is only 4th.....
Also, you need to look at the coil/s resistance at the transmission control valve.
Once again I can't be too specific, as there maybe a combination of coils energised to gain 4th gear.
So, if no one else chimes in here, a service manual is really your best bet........

Ok thanks. I think it is limiting it through the control.
I found a clutch chart and I will check the coils.

 

[Coy Lancaster]

Have you found your problem and repaired yet? One other thing to consider is that you need to make sure the trans controller doesn't have 4th gear locked out.