JD6630 Hydraulic Failure

[farmerm]

My JD6630 hydraulics have quit. I realised it was a bit low on oil tipping the trailer when it went to alarm mode and wouldnt move until I lowered the trailer. Having dropped the trailer I realised it still held 1/2 load of muck so I tried tipping it again and nothing, no power steering, no lift arms, no hydraulics at all! I have put 10L of hyguard in and still nothing. Is there some protection mechanism in action or has the low oil level caused something expensive to fail Oil in sight guard is very frothy

 

[Sharpy]

My JD6630 hydraulics have quit. I realised it was a bit low on oil tipping the trailer when it went to alarm mode and wouldnt move until I lowered the trailer. Having dropped the trailer I realised it still held 1/2 load of muck so I tried tipping it again and nothing, no power steering, no lift arms, no hydraulics at all! I have put 10L of hyguard in and still nothing. Is there some protection mechanism in action or has the low oil level caused something expensive to fail Oil in sight guard is very frothy

Firstly let the bubbles settle out and recheck the oil level. It could be the oil is so frothy it won't pump.

 

[KB6930]

I've never had any of ours give any bother and they've had the same treatment occasionally being caught out tipping a big trailer .
Normally just drop the arms to get enough oil to tip it and away they go again

 

[farmerm]

Firstly let the bubbles settle out and recheck the oil level. It could be the oil is so frothy it won't pump.

That's what I am hoping, just concerned there wasnt so much as a twitch from the hydraulics even after putting 10L of fresh oil in.

 

[farmerm]

Phew! The bubbles have settled and (after running for a minute or 2 and giving me cold sweats in the delay) hydraulics have come alive

 

[Sharpy]

Phew! The bubbles have settled and (after running for a minute or 2 and giving me cold sweats in the delay) hydraulics have come alive

Check it again in the morning.

 

[br jones]

Can you bleed it ?

 

[NZ Tech]

If its a standard machine.

Removing the plug in the top of the hydraulic filter and starting the engine can help. Or loosening the pressure line that goes to the priority valve can also help.

Ive had a couple that steering wouldn't work on until the above process was done.

Can you bleed it ?

 

[farmerm]

If its a standard machine.

Removing the plug in the top of the hydraulic filter and starting the engine can help. Or loosening the pressure line that goes to the priority valve can also help.

Ive had a couple that steering wouldn't work on until the above process was done.

Thanks, I think I owe you a beer. Had changed the filters yesterday but was outside and quit refilling the oil when the heavens opens... finished topping up this morn and again machine would not run any hydraulics so came back to this thread.... loosened the plug on the top of the big hydraulic filter, needs to be done with engine running I found.. I thought the Allen key was going to break before the plug yielded but it did eventually, and that has sorted it