David Brown 880 selectamatic

essexpete

Member
Location
Essex
Another forum I look at has a guy asking about a hydraulic problem with the DB. He has apparently changed rear end filter and even over filled the oil. Symptom is hydraulic lift will not work if tractor is parked on a downhill slope. On the level or up hill it will operate. Any ideas?
 

Classichay

Member
Arable Farmer
Location
The moon
I’d be asking on the David brown forum there’s an issue with the suction line not being submerged either a seal or loose pipe. Or possibly the valves sticking.
 

Exfarmer

Member
Location
Bury St Edmunds
I’d be asking on the David brown forum there’s an issue with the suction line not being submerged either a seal or loose pipe. Or possibly the valves sticking.
Sadly there is no longer a forum on the DBTC website, not sure why. There is a large group of DB enthusiasts on Facebook but you have to ask to join.
 

Bald n Grumpy

Member
Livestock Farmer
Sounds like it could be sucking air or an air lock
Could try bleeding on the top stud on the camels hump
(by the hydraulic lever and dump valve where an external spool valve could be fitted)
 

Classichay

Member
Arable Farmer
Location
The moon
I think that forum is quite important as there’s a dying amount of people who know about these,

hours of struggling may be pointless give Barclay Williams a ring he’s a really nice guy and plenty of time. Seldom say there’s many people I genuinely enjoy doing business with, he may not be cheap as agriline but it’s good quality and his knowledge is priceless.

he’s a saying on his wall “the titanic was built by professionals the ark by armatures don’t be afraid to try something new”. Sticks with me.
 

Exfarmer

Member
Location
Bury St Edmunds
I think that forum is quite important as there’s a dying amount of people who know about these,

hours of struggling may be pointless give Barclay Williams a ring he’s a really nice guy and plenty of time. Seldom say there’s many people I genuinely enjoy doing business with, he may not be cheap as agriline but it’s good quality and his knowledge is priceless.

he’s a saying on his wall “the titanic was built by professionals the ark by armatures don’t be afraid to try something new”. Sticks with me.
seems they have separated the club from the forum. The club site now guides you to Facebook
 

Netherfield

Member
Location
West Yorkshire
hydraulics.png


After further thought, I've a feeling it's all to do with part No 11, and it could be O ring No 13 has gone. If so, it's possible the end where 13 is can be allowing oil to be sucked up by the pump, but when it's downhill it's just sucking air. And if I'm right it can be sucking unfiltered oil.
One of my local experts died a couple of years ago, and the other upped sticks and moved away from the area.
 

Jasper

Member
Mine does the same . I was told it’s got something to do with the hydraulic oil pressure switch getting broken when the pto housing got removed
 

Netherfield

Member
Location
West Yorkshire
Mine does the same . I was told it’s got something to do with the hydraulic oil pressure switch getting broken when the pto housing got removed
Could be the answer, it's the adaptor (No 15) that gets broken when someone forgets to remove it before taking off the PTO housing, still wants repairing or you can still be sucking unfiltered oil.
 

Get ready for pest monitoring, advises PGRO

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Written by Charlotte Cunningham

The Processors and Growers Research Organisation (PGRO) has issued new advice to help growers understand the importance of measuring pest populations before any decisions are made on insecticides. Charlotte Cunningham reports. Ahead of the trapping season, the PGRO has produced a new masterclass video to help growers understand how to trap and assess pest populations. The key advice is that using a range of preventative tools will be crucial for farmers looking to reduce cases of pea and bean weevil, pea moth, and silver Y moth this spring, while finding more sustainable ways of farming in line with new agricultural policy, according to the PGRO’s research and...
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