willie8110
New Member
No not at all. Not a lot of 81s around here. A friend has one but she’s open center
Massey Ferguson 8130
- Thread starter davedb
- Start date
No not at all. Not a lot of 81s around here. A friend has one but she’s open center
davedb
Member
- Location
- Staffordshire
Don’t think there’s seals in them it’s like a spool if I remember right? Did you say you’d had the spool out? Everything moving freely?
willie8110
New Member
Ya free as a bird. I seen that qtp do a seal kit for them that’s what made think seals
davedb
Member
- Location
- Staffordshire
The open centre ones will have seals in I wounder if that’s what you’ve seen
willie8110
New Member
More than likely that’s it.
dreambollocks
Member
Just bought an 8130 and it also has the neck breaking jerk you mention; There is no oil pressure light on the dash, as soon as the clutch is released, there is no bite and then once its fully released, it tries to send you through the windscreen. Did you get to the bottom of the fault? Could you shed light on it? Cheers
davedb
Member
- Location
- Staffordshire
Yes mine was a leak on the 4wd pack loosing the 17bar pressure needed to work the clutch
The 4wd, difflock,pto, dynashift and clutch all work of a 17bar circuit, you really need to get a gauge on the test point to find your problem there is also an accumulator on this circuit that can fail
Mine is smooth as anything now
The 4wd, difflock,pto, dynashift and clutch all work of a 17bar circuit, you really need to get a gauge on the test point to find your problem there is also an accumulator on this circuit that can fail
Mine is smooth as anything now
dreambollocks
Member
Thank you, where do you find the test point on them? this one only ever gets sharp on the clutch after she's been heated up.
davedb
Member
- Location
- Staffordshire
I brought a workshop manual of eBay has been very handy I’ll try find you the pages and put them up, but busy on silage at the moment so might take me a bit
dreambollocks
Member
no rush, thank you
Hi all, interesting thread, took a while to read it all!
I have a 6180 with CCLS. Whenever I turn steering around I am losing pressure on the low pressure circuit, dropping from 17 bar all the way down to below 10bar if I keep turning steering. therefore the clutch engagement is very erratic when turning steering, but fine if don’t touch steering. It’s as though the steering circuit (which has priority) is robbing oil from the low pressure circuit.
prior to this issue there was some dirt got into the back end when Changing lift position sensor cam. The 150 micron strainer was full of dirt afterwards so I replaced it. (dirt not metallics in filter). I’ve also replaced the high pressure filter. I cut open the high pressure filter I removed and no sign at all of anything to suggest a pump or brake failure. The brakes are fine, this all started after dirt got in.
i tested the pump high pressure and it only going to around 140 bar at idle.
i don’t have the correct gauge to read the lower boost pump pressure but it seems to barely move the needle on a 100 bar gauge. I suspect the charge (boost) pump may have become a victim of the dirt ingress.
if The charge pump was failing would it ”starve” the variable pump? I’m thinking the steering is pulling all the available oil as priority and starving the clutch, PTO, 4wd etc. On low pressure circuit.
suggestions welcome, I am coming to terms with this tractor- a lot of money spent on air seat, lift position and draft sensors, lift position cam, electrical components, a lot of re-wiring done too! I like the tractor, hoping she will settle down if I get This sorted!
I have a 6180 with CCLS. Whenever I turn steering around I am losing pressure on the low pressure circuit, dropping from 17 bar all the way down to below 10bar if I keep turning steering. therefore the clutch engagement is very erratic when turning steering, but fine if don’t touch steering. It’s as though the steering circuit (which has priority) is robbing oil from the low pressure circuit.
prior to this issue there was some dirt got into the back end when Changing lift position sensor cam. The 150 micron strainer was full of dirt afterwards so I replaced it. (dirt not metallics in filter). I’ve also replaced the high pressure filter. I cut open the high pressure filter I removed and no sign at all of anything to suggest a pump or brake failure. The brakes are fine, this all started after dirt got in.
i tested the pump high pressure and it only going to around 140 bar at idle.
i don’t have the correct gauge to read the lower boost pump pressure but it seems to barely move the needle on a 100 bar gauge. I suspect the charge (boost) pump may have become a victim of the dirt ingress.
if The charge pump was failing would it ”starve” the variable pump? I’m thinking the steering is pulling all the available oil as priority and starving the clutch, PTO, 4wd etc. On low pressure circuit.
suggestions welcome, I am coming to terms with this tractor- a lot of money spent on air seat, lift position and draft sensors, lift position cam, electrical components, a lot of re-wiring done too! I like the tractor, hoping she will settle down if I get This sorted!
davedb
Member
- Location
- Staffordshire
It’s possible it could starve the main pump for sure I’ve never pressure tested mine tho, There is a brass plate inside the main pump that can get scored causing it to loose pressure I had mine skimmed to bring it back
The charge pressure is 5 bar, but dropping down to less than 3 bar when I turn the steering. Not sure if this indicates insufficient flow on the charge line?
I'm going to remove the charge pump for a look.
I'm going to remove the charge pump for a look.
I took the charge pump out for a look but it looks in perfect condition so I guess I'm on the wrong track.
Anybody know if it is normal for the 17 bar circuit to drop in pressure when turning steering? Maybe that's why an accumulator is needed and mine could be faulty?
Replaced the clutch accumulator and now the 17bar circuit pressure is stable even when turning the steering. Problem solved.
Spoke too soon.
Once the oil gets warmed up I lose the clutch when turning the steering.
With hot oil I’ve also got poor pressure on spools. Struggled to lift slurry pump out of tank with hydraulic top link.
I removed and dismantled the orbital, it looks in good condition, steering works ok. (I’ve rebuild these before- seen them badly stuffed with filings etc)
I suspected main piston pump may be worn due to lack of pressure on spools and problem worse with hot oil, so I removed RH cover and dismantled piston pump.
It seems in good condition, but there is some marking on the brass plate which can be felt with my finger. I don’t think its enough to cause my issues, but not sure- maybe even light scoring on the brass plate might affect the flow/pressure?
Losing the will to live with this one.
Once the oil gets warmed up I lose the clutch when turning the steering.
With hot oil I’ve also got poor pressure on spools. Struggled to lift slurry pump out of tank with hydraulic top link.
I removed and dismantled the orbital, it looks in good condition, steering works ok. (I’ve rebuild these before- seen them badly stuffed with filings etc)
I suspected main piston pump may be worn due to lack of pressure on spools and problem worse with hot oil, so I removed RH cover and dismantled piston pump.
It seems in good condition, but there is some marking on the brass plate which can be felt with my finger. I don’t think its enough to cause my issues, but not sure- maybe even light scoring on the brass plate might affect the flow/pressure?
Losing the will to live with this one.
davedb
Member
- Location
- Staffordshire
Yes scoring on that plate will effect pressure I had mine skimmed/polished which helped a lot give that a go or see if you can get a new one these pumps are very common so bits should be easy to get of somewhere like Whitehouse products
davedb
Member
- Location
- Staffordshire
Yea that will definitely have an effect on the pump
I fitted a new end plate on the variable pump and refitted The RH cover. The high pressure has now been restored to 190bar when checked at the spools. Spools and lift work ok.
Now the low pressure system isn’t charging to 17 bar, is is sitting at 13.5 bar. Prior to removing RH cover the pressure was 17 bar, only dropping when turning steering.
The clutch is operating ok, but the steering is now seizing up. If I hold pressure on steering wheel, it will begin to turn fairly freely after about 5-6 seconds of not moving. Same in both directions.
I’ve replaced the pencil filter in canister on RH cover when refitted cover.
I’ve tried disengaging PTO, diff, PTO etc (low pressure functions) but I’m not seeing any drop in the 13.5 bar.
hoping that maybe just the spool on RH cover distribution valve is stuck, thinking that’s what I need to check?
Anybody want to buy a clean 6180?
Now the low pressure system isn’t charging to 17 bar, is is sitting at 13.5 bar. Prior to removing RH cover the pressure was 17 bar, only dropping when turning steering.
The clutch is operating ok, but the steering is now seizing up. If I hold pressure on steering wheel, it will begin to turn fairly freely after about 5-6 seconds of not moving. Same in both directions.
I’ve replaced the pencil filter in canister on RH cover when refitted cover.
I’ve tried disengaging PTO, diff, PTO etc (low pressure functions) but I’m not seeing any drop in the 13.5 bar.
hoping that maybe just the spool on RH cover distribution valve is stuck, thinking that’s what I need to check?
Anybody want to buy a clean 6180?