Search found 464 matches

by cobbadog
Thu Apr 25, 2019 6:44 am
Forum: DBTC Forum
Topic: DB 25 - is it rare
Replies: 6
Views: 111

Re: DB 25 - is it rare

There is a couple of 25C in our Club but rarely attend the Rally.
by cobbadog
Wed Apr 24, 2019 8:17 am
Forum: DBTC Forum
Topic: DB 25 - is it rare
Replies: 6
Views: 111

Re: DB 25 - is it rare

What a desirable tractor you have found. They are a bit rarer to find around here in Australia as compared to the 30C & D but they are still a little beauty. Attached is a friends 25D with a set of duals on the rear. Non original paint colour but a beauty to look at. Old Ox cart axle cut down for a ...
by cobbadog
Wed Apr 24, 2019 8:08 am
Forum: DBTC Forum
Topic: Tacho drive
Replies: 4
Views: 89

Re: Tacho drive

See if you can get a thread file to it to clean it up. If no thread file use a 3 sided file and be careful in cleaning it up.
by cobbadog
Sun Apr 21, 2019 6:45 am
Forum: DBTC Forum
Topic: Hydraulic take off on db 25
Replies: 22
Views: 294

Re: Hydraulic take off on db 25

Thanks for the replies.
by cobbadog
Sun Apr 21, 2019 6:41 am
Forum: DBTC Forum
Topic: David Brown 770 (livedrive) cylinder head
Replies: 2
Views: 102

Re: David Brown 770 (livedrive) cylinder head

Is there a reason for the change over or that it is in better condition than the original?
by cobbadog
Sat Apr 20, 2019 4:20 am
Forum: DBTC Forum
Topic: Rear Lights
Replies: 1
Views: 87

Rear Lights

As I get closer to the painting of my 30C I am doing some of the fiddly bits I want to do to the tractor while I wait for the weather to be in my favour. One thing I am doing is fitting rear lights and these ones although not David Brown lights are what I wanted, a stop/tail light which is a low pro...
by cobbadog
Sat Apr 20, 2019 4:14 am
Forum: DBTC Forum
Topic: Hydraulic take off on db 25
Replies: 22
Views: 294

Re: Hydraulic take off on db 25

What would you recommend to do the flushing with db2d as I don't want to harm anything but it has been something suggested in other threads for flushing for this reason.
by cobbadog
Fri Apr 19, 2019 7:25 am
Forum: DBTC Forum
Topic: Hydraulic take off on db 25
Replies: 22
Views: 294

Re: Hydraulic take off on db 25

Don't forget to flush the gearbox/diff as well before replacing with new oil. You can drive the tractor a short distance and stopping and starting quickly this helps mix the diesel with the old contaminated oil to get rid of as much as possible. Remember to leave your 3 point linkage down when drain...
by cobbadog
Fri Apr 19, 2019 7:16 am
Forum: DBTC Forum
Topic: Dynamo and regulator wiring
Replies: 25
Views: 273

Re: Dynamo and regulator wiring

On any schematic diagram the "arrow" looking icon is always the earth wire, the only thing that changes is whether it is positive or negative earth but always is the earth wire. I would use a multi meter to check the terminals to confirm which is your earth if it is not stamped somewhere near or on ...
by cobbadog
Thu Apr 18, 2019 7:59 am
Forum: DBTC Forum
Topic: Dynamo and regulator wiring
Replies: 25
Views: 273

Re: Dynamo and regulator wiring

Finally got it attached.
by cobbadog
Thu Apr 18, 2019 7:57 am
Forum: DBTC Forum
Topic: Dynamo and regulator wiring
Replies: 25
Views: 273

Re: Dynamo and regulator wiring

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...
by cobbadog
Wed Apr 17, 2019 6:58 am
Forum: DBTC Forum
Topic: Spun bearing on 990
Replies: 10
Views: 220

Re: Spun bearing on 990

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...
by cobbadog
Wed Apr 17, 2019 6:48 am
Forum: DBTC Forum
Topic: Dynamo and regulator wiring
Replies: 25
Views: 273

Re: Dynamo and regulator wiring

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.
by cobbadog
Wed Apr 17, 2019 6:42 am
Forum: DBTC Forum
Topic: Hydraulic take off on db 25
Replies: 22
Views: 294

Re: Hydraulic take off on db 25

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.
by cobbadog
Wed Apr 17, 2019 6:36 am
Forum: DBTC Forum
Topic: 950 implematic exactor coupling
Replies: 16
Views: 368

Re: 950 implematic exactor coupling

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...