Show us your David Brown Tractor!

Netherfield

Member
Location
West Yorkshire
Someone who had been on a tour of banner lane told me how a nut in the gearbox had to be torqued and was essential it was done. Went out on the production line and someone picked up that the nut was not checked with a torque wrench just a bloke with a big spanner and a lump hammer. This was brought to the attention of the tour guide who picked up a torque wrench and checked about 6, all were spot on. Think maybe it was a party trick for the tour guides
Was father in law at browns? What did he do there
He was in charge of engine manufacturing.
 

Netherfield

Member
Location
West Yorkshire

Go here and download F for all engine data

And M shows how to remove reductions to get at the brakes, where I think the shaft through the backplate will be seized. Pay attention if removing the right hand reduction the diff lock must be engaged, and these things are heavy requiring more than one person unless such as an engine crane is available.
 

Bald n Grumpy

Member
Livestock Farmer
How do I know they are fitted right way up and oil rings alternated?
Without stripping and refitting it's difficult. How much experience did whoever fitted them have and how much confidence do you have in them.
Like I said if they're not right its a waste of time and you won't know until its all up and running.
 

Netherfield

Member
Location
West Yorkshire
Bet that was useful back in the day
Never short of parts books or maintenance manuals, he would just ring publication and have them sent to his office, he got me the piston tool and a valve seat cutter, but they were well used and being replaced by new ones and would have only ended in the scrap bin.

Only other useful items were crankshafts, and these were also destined for the scrap bin because the journals had been damaged, 10thou regrind cured that but of course you couldn't send new tractors out with them fitted, although a large amount of 3 cylinder engines went out with liners fitted, someone had bored the block wrongly on a night shift operation, reckoned they couldn't afford scrap all those blocks, they were sent out to a former employee who now worked for himself locally.

Almost eyerybody who worked in O block (Engines) who had a Ford or British Leyland car had a spare alternator 'borrowed' from the factory, all they had to do was drop one and damage the end case and it was declared scrap, then if you needed to fit it to your car just swap the old cover over.
 

Netherfield

Member
Location
West Yorkshire
Are both sides the same?

Sounds like the drums have got rusty and the shoes are now binding, especially if it's been parked all that time with the handbrake on, unwind the adjusters and give the reductions a good clout with a 14 lb hammer, undo all the reduction ring bolts and try pulling apart, might need a hammer and chisel to get started, once there's a gap it's tyre levers or jemmys to keep forcing it apart.
 

Db Donnchadh

Member
Horticulture
1637929074950.jpeg
 

Netherfield

Member
Location
West Yorkshire
reduction.jpg


Yes those are the bolts/nuts to remove, the reduction splits at '2' above '1' is an extension piece for the wider brakes on the 12 series as opposed to the 996, can be a devils own job when they've not been apart for a long time, that's where you might need to start with a thin chisel something like a brick bolster is ideal.
 

CHAP Webinar - Innovative tools to overcome the challenges of Regen Ag

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Applying principles of regen ag can incur a range of on-farm challenges. Learn how innovative tools & machinery can help with these hurdles.

This event will be held online from 1pm to 2pm on Thursday 2nd December 2021 so please block it out in your diary.

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