OPICO Grass harrow ?

[Tha Ulsterscot]

Just bought a 5 mtr. harrow but the instructions on the accumulator for the ram have been rubbed off. It says a maximum of 8 to10 bar, but is this with the ram closed or down? Any help appreciated.

 

[Still Farming]

Maybe hydraulic pressure for their system when pressurized?

 

[Dave W]

Just bought a 5 mtr. harrow but the instructions on the accumulator for the ram have been rubbed off. It says a maximum of 8 to10 bar, but is this with the ram closed or down? Any help appreciated.

You shouldn’t need to be messing with the accumulator pressure unless it’s designed for that. If they unfold properly then I’d forget about it.

 

[Dave W]

You shouldn’t need to be messing with the accumulator pressure unless it’s designed for that. If they unfold properly then I’d forget about it.

Something in my distant memory tells me there’s a tyre valve on the accumulator?
So maybe not a nitrogen filled high pressure thing but a lower pressure that you charge with air line.
As before though it’s only to give the harrows an initial push from Park position to fold down

 

[Tha Ulsterscot]

Something in my distant memory tells me there’s a tyre valve on the accumulator?
So maybe not a nitrogen filled high pressure thing but a lower pressure that you charge with air line.
As before though it’s only to give the harrows an initial push from Park position to fold down

That is the set up, but do you pressurise it with the harrow up or down? Don't want to over do it. thanks.

 

[Tractor Tim]

Cant remember if you pressurized it when up or down but I used to pull the cord and put the hydraulics in float if it doesn't drop them put a bit more pressure in once the arms.start to come down they will both drop easily

 

[Dave W]

That is the set up, but do you pressurise it with the harrow up or down? Don't want to over do it. thanks.

Test the pressure as it is in the up and down position see if it alters then adjust accordingly

 

[Tractor Tim]

There will be more pressure with it in the up position so pressurise it there and see. From memory it didn't need that much pressure to make work

 

[Chuckie]

You can probably get the manual from the opico website, they are very good for that