MF 290 Loader Problem

[Pennine Ploughing]

@Pennine Ploughing. There are 2 pipes to the tipping ram and 1 to each lifting ram. Lever feels OK.

@REStracTORATION. I guess you mean these couplers to use as blanking plugs? I don't have any spares but I'm sure I'll find something to fit. Got loads of tubs of old bolts.

Thanks to all.

View attachment 570288

yes i was on the wrong track it was my fault for not reading it properly,
just drive into the heap of muck with loader on the ground,, stop tractor, remove the 2 pipes to the crowd ram lift loarder
if ram moves to tip it out, them internal leak in ram, if it dont tip. its tractor end,

just set loader on ground to connect pipes back up, might be some pressure in them slacken to ease presssure off

 

[Pennine Ploughing]

dont use a bolt to seal the end, it will not be the right thread, however near you think it is

 

[Farmer996]

yes i was on the wrong track it was my fault for not reading it properly,
just drive into the heap of muck with loader on the ground,, stop tractor, remove the 2 pipes to the crowd ram lift loarder
if ram moves to tip it out, them internal leak in ram, if it dont tip. its tractor end,

just set loader on ground to connect pipes back up, might be some pressure in them slacken to ease presssure off

Muck is all gone now (after a bit of difficulty) but I see where you're all coming from. Will do some more diagnosis tomorrow with some concrete blocks and report back. Thanks again.

 

[Farmer996]

dont use a bolt to seal the end, it will not be the right thread, however near you think it is

Ok. Just can't quite see how to use these couplers instead but will have a look tomorrow. Thanks.

 

[Pennine Ploughing]

with pressure off, the pipes just pull out, and just push back in

 

[REStracTORATION]

with pressure off, the pipes just pull out, and just push back in

Yes that's a better way of doing it

@Farmer996 just pull pipes out of tractor that go to tip ram simple as that!!!
They self deal when disconnected

 

[Farmer996]

with pressure off, the pipes just pull out, and just push back in

Then plug pipes back into the tipping ram to use as blanking plugs? Sorry but not quite getting that bit? @agrimax said to blank of tipping ram pipes and see if it still drops. Yes = ram. No = spool valve.

 

[Farmer996]

Yes that's a better way of doing it

@Farmer996 just pull pipes out of tractor that go to tip ram simple as that!!!
They self deal when disconnected

Ah. The penny drops. Unplug and it seals. Genius!!

 

[REStracTORATION]

Then plug pipes back into the tipping ram to use as blanking plugs? Sorry but not quite getting that bit? @agrimax said to blank of tipping ram pipes and see if it still drops. Yes = ram. No = spool valve.

If you remove pipes at the ram end thus leaving ram open you need to blank the outlets off hence using couplers!

Or leave pipe connected to ram and just uncouple the couplings as if your were removing the loader off tractor

Is that clearer

 

[REStracTORATION]

If you remove pipes at the ram end thus leaving ram open you need to blank the lists off hence using couplers!

Or leave pipe connected to ram and just uncouple the couplings as if your were removing the loader off tractor

Is that clearer

If not where are you, I will come and do it for you

 

[Farmer996]

I understand now!! Motorcycles don't have hydraulics, or they didn't last time I worked on them. Will investigate further tomorrow and report back. Thanks again to all.

 

[agrimax]

Think you have it sussed now but I was assuming the ram to have been connected directly to the spool valve and not through couplers. As it is,male ends on the pipes when unplugged will act as blanking plugs. Unplug them,lift load and see what becomes.............

 

[Farmer996]

Think you have it sussed now but I was assuming the ram to have been connected directly to the spool valve and not through couplers. As it is,male ends on the pipes when unplugged will act as blanking plugs. Unplug them,lift load and see what becomes.............

It was the blanking plugs that threw me. I can't wait to try it. I might go and do it now! Anyway, it's probably the ram which looks easy enough to remove. I just hope it's not too expensive to repair.

 

[REStracTORATION]

It was the blanking plugs that threw me. I can't wait to try it. I might go and do it now! Anyway, it's probably the ram which looks easy enough to remove. I just hope it's not too expensive to repair.

Go on just un plug them quick and easy


The ram will come off easy of the line will be seized then have fun with that one

 

[Farmer996]

Go on just un plug them quick and easy


The ram will come off easy of the line will be seized then have fun with that one

Will let you know how it goes. Coupling thing makes sense now. I've got a Ford 3000 with a tipping trailer. If I unplug it before trailer has dropped it stops. Pipe seals. Simples!

 

[multi power]

The best way to test this is swap the lift and crowd to the opposite slice on spool block and see if problem moves, don't forget to set for single/double acting

 

[Ioan annwyl]

The best way to test this is swap the lift and crowd to the opposite slice on spool block and see if problem moves, don't forget to set for single/double acting

Don't confuse him any more

 

[multi power]

Don't confuse him any more

I was kinda thinking that, my explanaing is bad enough for someone who knows what I'm talking about

 

[MF-ANDY]

that ram is piped into outlet 1 and 2. swap those 2 pipes over and try again. the lever will work the opposite way but if it dosent creep you have a faulty oring on you single/double acting tap or the tap isnt tightened right up it the knob below the spool lever

 

[essexpete]

Just to add be careful uncoupling hydraulics. Oil under pressure can penetrate skin, eyes etc.