TS110 hydraulic problem

[Dave W]

Got a hydraulic gremlin on the TS110.
From cold it works perfectly but when it's been worked for a short while it is losing transmission oil pressure. No spools, lift arms, no drive, no pto brake.
we don't think it's pump related as it works perfectly when it's working.
I'm convinced it's some sort of bypass/dump valve sticking and dumping all the pressure.
occasionally it will un stick and return to normal for a while.

I've also an inclination it could be related to the clutch? Pressing the clutch pedal seems to be a catalyst to make it lose pressure. However there doesn't seem one consistent pattern to make it fail

 

[newholland]

SLE or SL etc

 

[Dave W]

SLE or SL etc

Can never remember the difference. 4 powershifts.

 

[forblue]

Any red lights come on when hot.?.

 

[Dave W]

Any red lights come on when hot.?.

The transmission light is on/off when it working/not working.
it will come back to life when it's hot and be ok for 10 mins then fail again for no particular reason but the clutch does seem to be the catalyst on a few occasions.

 

[ih1455xl]

Any relation to using the brakes as I’ve had the trailer brake valve do funny things as it has priority

 

[forblue]

what hyd pumps ccls or two separate either way get flow and pressure check done, i assume you have changed filters and even oil...

 

[Dave W]

Any relation to using the brakes as I’ve had the trailer brake valve do funny things as it has priority

Brakes don't seem to have any effect

 

[ih1455xl]

wasn’t there a problem with the suction pipe falling off on them or have I dreamt that

 

[forblue]

Transmission light will indicate loss of low pressure which will result in loss of hyd's and all what you stated, again what hyd pumps have you got and do you lose steering as well..

 

[Dave W]

Transmission light will indicate loss of low pressure which will result in loss of hyd's and all what you stated, again what hyd pumps have you got and do you lose steering as well..

Unsure on the pumps. How do I tell?
steering unaffected. Never failed.
can get the light to go off by revving flat out. Sometimes light stays off and everything back to normal

 

[oil barron]

Have you taken the big filter off and checked for filings.

 

[Dave W]

Have you taken the big filter off and checked for filings.

Changed all the oils and filters when it first started playing up. Nothing untoward in filters and it did improve things for a while but starting to get worse rapidly now

 

[forblue]

ccls pump has two vertical and one horizontal filters on right under cab, how many hours,

 

[livestock 1]

How many hours? I had loss of low pressure side on 6810 fords due to splines gone between pumps. It would come and go.
sh!t in valves would take spools out

 

[Dave W]

ccls pump has two vertical and one horizontal filters on right under cab, how many hours,

Yes 2 vertical 1 horizontal.
5500 hrs

 

[forblue]

Well back to my previous suggestion get a flow and pressure check done, ccls pump is three pumps high and low pressure and steering, if you have a leak in pto,4 w/d,or transmission which is likely as you state clutch pedal seems to affect light [ pedal regulates pressure to clutch pack] then you will lose most things, if you do get a check done make certain the person doing it knows about these or 40 series...

 

[oil barron]

Changed all the oils and filters when it first started playing up. Nothing untoward in filters and it did improve things for a while but starting to get worse rapidly now

Your breaks are shot and are clogging up the filter.

 

[Dave W]

Your breaks are shot and are clogging up the filter.

Would that correlate with the fault being intermittent?

 

[oil barron]

Would that correlate with the fault being intermittent?

The pump is able to push oil through when it’s cold. Which is doing the tractor no good. Take the big filter off, cut it open and run a magnet through the oil inside the filter.