Rear arms not working since fitting loader.

Deutzdx3

Member
Went to hook a tedder on, arms went down just fine, wouldn’t go up, topped auxiliary tank up but still nothing. Any ideas?
 

Mursal

Member
The oil wont bother doing any work if it can free flow around the loader slice, so put the loader working off an original slice (at the back) so you can turn it off when you want the arms.
 

Mur Huwcun

Member
Livestock Farmer
Location
North West Wales
How is your loader block plumbed? Ideally you need to fit the loader block in the line between the trailer brake valve if fitted and the tractor’s own spool block. The feed then should be from pump to TBV, then on to the loader spool (usually the L/H connection marked P) then the other connection (carry over) should be piped back to the tractor spool where you took off the original feed pipe. The port marked T on loader should go back to tank to dump any excess oil the PRV doesn’t like!!!
 

Deutzdx3

Member
How is your loader block plumbed? Ideally you need to fit the loader block in the line between the trailer brake valve if fitted and the tractor’s own spool block. The feed then should be from pump to TBV, then on to the loader spool (usually the L/H connection marked P) then the other connection (carry over) should be piped back to the tractor spool where you took off the original feed pipe. The port marked T on loader should go back to tank to dump any excess oil the PRV doesn’t like!!!

Hi,

The loader has been plumbed how quicke advised me. Pressure is plumbed direct from the pump into the loader block, then from there out the side into where the pump went into the back end. Then dump is via a connector on the back that dumps into the back end. My aux oil tank was empty earlier which feeds the spools etc. Bloody machinery. It doesn’t have trailer brakes.
 

Deutzdx3

Member
IMG_0161.JPG


Pump intersected to the pressure side of the spool, out of the side to the back end. So it still should be feeding the circuit just via the block now. I haven’t taken the dump to where they have. I’ve taken it to the back. It dumps in the back end still just another place. Should I re route this to where they have in the image? Could it be low oil?
 

dannewhouse

Member
Location
huddersfield
on the massey loader feed is taken before to spool valves, and the return put back there, the other return is direct into the back end. the oil then goes through the spools then down to hydraulics valve.
 

Deutzdx3

Member
on the massey loader feed is taken before to spool valves, and the return put back there, the other return is direct into the back end. the oil then goes through the spools then down to hydraulics valve.

Same here. Cuts into the pump feed, into loader block then into tractor back where the pump would have gone into if there were no loader. Then dump back to tank.
 

dannewhouse

Member
Location
huddersfield
View attachment 679846

Pump intersected to the pressure side of the spool, out of the side to the back end. So it still should be feeding the circuit just via the block now. I haven’t taken the dump to where they have. I’ve taken it to the back. It dumps in the back end still just another place. Should I re route this to where they have in the image? Could it be low oil?
pipe 59 is your main return (this is where oil circles when loader not being used) so will be quite important in correct place, it might be internally pipes even though you think it straight into back end?
if you pressure loader such as pushing it on floor while working hydraulics do they work?
 
Location
Suffolk
Have a Deutz & no probs with loader but you need to check if you have pressure to the spool block. That's a start. Mine is only a single pump. Yours may be a double pump. One for arms one for externals. Follow the flow.....Messy but probably worth the mess!
Had a forestry harvester with operational issues. Turns out is was a piece of rubber blocking a port.
Filter should be down the outside & up the middle.
SS
 

Deutzdx3

Member
pipe 59 is your main return (this is where oil circles when loader not being used) so will be quite important in correct place, it might be internally pipes even though you think it straight into back end?
if you pressure loader such as pushing it on floor while working hydraulics do they work?

The main pipe from the pump is metal. I traced it and intersected it to go into the loader spool block. Pipe 59 then goes from the block to where the metal pump used to go. It’s just been diverted via the loader spool block. Defo the right pipe I intersected.

It has a double pump, other side of pump goes to power steering only by looks of things. No hyd spools either. Just tried them.

What should I try, putting load on loader and see if rams come up then?
 

Mursal

Member
And the flow direction through the loader valve is correct?
See have you a flow of oil out the pipe marked T (pipe number 64)?
The loader block may well be letting oil back to the tank?
 

Deutzdx3

Member
And the flow direction through the loader valve is correct?
See have you a flow of oil out the pipe marked T (pipe number 64)?
The loader block may well be letting oil back to the tank?

Pipe 64 is dump back to tank. I have this going to back end. See pic below. Is this wrong do you think? I put it there just to save cutting that pipe and having a new end putting on as I wanted to get it up and running.
IMG_2225.JPG
 

Deutzdx3

Member
IMG_2226.JPG


Pipe on far left is pump pressure in. Pipe on the side with 90 elbow goes to where the pump went into the block under the cab. Pipe on right goes into back. Not where they have said as explained in previous comment. See pic below.
IMG_2225.JPG
could this be my issue?
 

Mursal

Member
That should be OK, but its the only way the loader valve can be dumping oil when you need the lift arms.
The pipe with the 90 degree bend, shouldn't have any flow when using the lift arms?
Can you join the left and right pipe again to check the lift arms, then you know the trouble is in the block
 

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