David Brown Tractor Club Forum

Finally got it attached.

Here is a schematic diagram for a 6v +earth wired David Brown. It shows 2 wires only from the dynamo, both going directly to a separate regulator using an unidentified terminal and "D". Ammeter is wired between terminal "A" on the regulator and - on the battery. It also shows a lighting schematic. H...

If this is your tractor and you are going to put it back towork don't mess around have your crankshaft machined properly. You will thank yourself for that later on in years of reliable use. Once machined you will then know what size bearings you need to buy. Simply cleaning up the journals is not th...

We have a TEA20 which was a 6v system and now runs an 12v alternator as fitted by the previous owner. It copes easily using the 6v starter.
I have a diagram of a 6v system on a D.B. and as best I can tell shows the normal + earth.

Start by doing an oil change and a flush out then top up with clean oil after washing the filter at the bottom of the gearbox. Order some nice new copper washers and fit them. Make the bolts firm but not too tight This would at least fix these issues then go from there.

To me, I would like to think that you would use matching couplings to be certain that the connection works properly and then there should be no need to replace a fitting unless you smashed it with a hammer. I operated hydraulic rock breakers for only about 4 years on the same machine and the same co...

Was there any reason why 2 of the 3 gauges were made white a white background and the ammeter was black? The third hole was for a water temp gauge but if your tractor came with the calorimeter then they did not fit the water temp gauge in the dash board (not scuttle plate). The suttle plate is the p...

Your embers comming out from the exhaust may also be from loose carbon from when you pulled the injectors out. While waiting for the new washers, go through the rest of the items listed above and also put your battery on charge so that it is up to spec when it is time to fire up. Once you are sure a...

Hi Ollek,
thanks for the link.
Obviously we know about zippers in clothing but when the same term is used on describing tractor parts it did not register even when some words have more than one meaning.

What on earth is a 'zip or zipper"?

In the district where this tractor lives you pretty much benefit a lot from duals as the terrain is very hilly and a number of weekend farmers have had an 'upside down' moment because of lack of experience. Still it is something different and not seen too often and is an eye catching unit.

Agree about the caterpillar product but we have some very concentrated coolants here and if mixed at 50:50 would still be too strong for the application. they do this to condense the packaging size and weight for ease of handling.

I would try the least harmful way first, polish with Brasso or similar. the only thing I can think of by using 1500 wet n dry paper is that you must ensure it is clean of all carborundum grit as that would chew up your seals. I too have read the posts about the ball bearing and some models seem to h...

The 25D has an old Ox Cart axle with the ends slightly trimmed to width. It definitely wont give if ever tested. The dual wheels are also non standard but it is what he wanted so he did it. His only issue with them is that the design they built them buy requires a lot of work to remove them to trans...

Check and make sure you haven't bought a pre mixed coolant before breaking it down further. Here in Australia you can buy it so that it is poured straight in and then the ones you mix depends on the climate you live in as to the ratio you mix it. Cooler climate requires more glycol product. This inf...