One for DB fans

J 1177

Member
Mixed Farmer
Location
Durham, UK
No mention of another DB peculiarity, the 2D

Possibly the only 2 cylinder engine in the world that actually had 3 pistons....

2 cylinder diesels are inherently inbalanced, and do tend to vibrate unless fitted with a huge, heavy flywheel and counterbalance weights on the crank

to save on weight, and size, DB decided to cast another bore into the sump, under the crankshaft. This was fitted with a cast iron piston which weighed exactly the same as the total weight of the 2 aluminuim pistons "up top"

The cast iron piston ran on an opposing stroke, so as the 2 pistons were going up, it was going down.

Rumour was, it did such a job at balancing the engine, you could balance a coin on the bonnet when the engine was running, such was its smoothness!!!
They are the tool carriers that relied on air to lift the implements. The frame was the air tank. Is that right John?
 

John 1594

Member
Location
Cambridgeshire
They are the tool carriers that relied on air to lift the implements. The frame was the air tank. Is that right John?

Yes, a very strangle looking machine

the design was loosely based on that of an allis chalmers design, after DB discontinued making them, Russels revived the design, albeit with a hydrostatic drive and air cooled engine of italian origin

the principle was the same however
 

dbrannon

New Member
Can someone help me figure out how to post a new 1210 David Brown tractor question. Not meaning to butt in anyones conversations but have some questions. I have never used a forum thread before. Thanks in advance
 

Exfarmer

Member
Location
Bury St Edmunds
Can someone help me figure out how to post a new 1210 David Brown tractor question. Not meaning to butt in anyones conversations but have some questions. I have never used a forum thread before. Thanks in advance

When you are in the classic machinery forum , there is a blue button post new thread.
This will prompt you to post a heading, then underneath a dialogue box for your question.
 

dbrannon

New Member
Might live on the other side of the planet?

Or, the David Brown is busy earning it's keep, so can't post on here! :)
sorry been at work all day..next to the wheel well is a box, ill post a pic. hydraulic lines under the seat and to it. there is a little piece, need to know if it is a vent or grease fitting. it is hollow all the way through.. 0815171632c.jpg have looked in the manual, cant find this piece or what the box like thing is.it is right next to the PTO lever.
 

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Selectamatic

Member
Location
North Wales
The Grease Nipple looking thing is a vent for the hydraulic system, make sure it is clear of any crud and replace it.

Rarely does it need fiddling with.

I'm struggling to follow what the other thing is that you are referring to... some pictures would help... :)
 

dbrannon

New Member
Oh thank you! thats what we were thinking it was. the other "thing" was the part where that vent goes into. This tractor is a 1971 and has been sitting in the weeds in a field for over 7 years, that the guy we got it from knew of. He said we could have it, just haul the junk thing off. Low and behold it cranked right up. Needed a complete new clutch assembly and we are replacing hoses, seat, fuel filters, greasing and lubricating everything etc. Had fun finding all the right parts.This tractor is Tough!0815171632.jpg
 

Selectamatic

Member
Location
North Wales
The casting in which the 'nipple' screws into is the hydraulic system. Behind the nipple is the piston that, through a linkage, raises the hydraulic arms.

The banana shaped lever at the back of that block is a linkage lock, it locks the arms in the uppermost point. Don't use it for transporting heavy stuff over rough ground, if the pin inside breaks you'll be in trouble! It's designed for locking a empty linkage up for transport, or while stationary so you may work on an implement (change plough share for example)

In the top left of your photo is a plug, this is the oil return point, if you run something that needs external oil supply, motors, pumps, rams etc, the oil return should always be plumbed into here, rather than just dumped back through the filler plug. If you don't do this, the gearbox is starved of oil in work.

I have no experience of a set up like yours, you have no three way valve there, all mine have, and I assumed they were standard fitment. Easy enough to get and fit if needed, but if you can manage without, leave well alone!

Hope this helps, shout if you need to be bored some more!
 

Ray996

Member
Location
North Scotland
The casting in which the 'nipple' screws into is the hydraulic system. Behind the nipple is the piston that, through a linkage, raises the hydraulic arms.

The banana shaped lever at the back of that block is a linkage lock, it locks the arms in the uppermost point. Don't use it for transporting heavy stuff over rough ground, if the pin inside breaks you'll be in trouble! It's designed for locking a empty linkage up for transport, or while stationary so you may work on an implement (change plough share for example)

In the top left of your photo is a plug, this is the oil return point, if you run something that needs external oil supply, motors, pumps, rams etc, the oil return should always be plumbed into here, rather than just dumped back through the filler plug. If you don't do this, the gearbox is starved of oil in work.

I have no experience of a set up like yours, you have no three way valve there, all mine have, and I assumed they were standard fitment. Easy enough to get and fit if needed, but if you can manage without, leave well alone!

Hope this helps, shout if you need to be bored some more!
Does seem odd no 3 way valve.is it maybe a drawbar only export model?
 

Selectamatic

Member
Location
North Wales
Does seem odd no 3 way valve.is it maybe a drawbar only export model?

I'd have to look in the price list, but perhaps the 3WV was a option?

I've never seen a ag tractor without, seen some yellow ones, with winches and the like.

You'd manage without for many things, you can tip a trailer by taking oil from the camel's hump, I think...?
 

SFI - What % were you taking out of production?

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Red Tractor drops launch of green farming scheme amid anger from farmers

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As reported in Independent


quote: “Red Tractor has confirmed it is dropping plans to launch its green farming assurance standard in April“

read the TFF thread here: https://thefarmingforum.co.uk/index.php?threads/gfc-was-to-go-ahead-now-not-going-ahead.405234/
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