david brown 785

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jp
Posts: 125
Joined: Wed Feb 15, 2006 5:59 pm
Location: BELGIUM

david brown 785

Post by jp » Wed Mar 11, 2020 1:44 pm

Hello all,

Dit you know any things about the 785??
David Brown 785 mini-standard , 3cyl …
Best regards,

jp
25D/1954
770+ db mower
db albion baler
db plough cm4
db plough cw2
850 vinneyard
990 implematic/ 1965+ db mower HM1 SC
880 4wd selene/1970
990 4wd selene/1968
990 4wd selene germany+L9 loader/ 1970
1200 4wd selene+LS12 loader/ 1970
885 4wd cararro /1980
995/6 4wd cararro+LO9 loader/1979
1210 4wd kramer germany/ 1976+ L012 loader
1212/ 1979
1412/ 1979

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db2d
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Location: Monmouthshire

Re: david brown 785

Post by db2d » Wed Mar 11, 2020 3:54 pm

Do you mean the CaseIH 785 ? This is not a David Brown Tractor.

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ollek
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Location: South West Finland

Re: david brown 785

Post by ollek » Wed Mar 11, 2020 4:19 pm

As db2d said, there was no David Brown tractor with the model number 785. The 785 was originally a International Harvester model and the brand changed to Case IH when Case bought out the IH farm tractor business. This tractor was made in Doncaster. The Case IH 785 was a 4-cylinder tractor and David Brown made a 3-cylinder tractor called 885 and before that a tractor called David Brown 780 and also a lower spec. version 770. International Harvester (later called Case IH) built a 3-cylinder tractor called 485. So what do you have? And what do you refer to saying mini-standard?

TEZB
Posts: 294
Joined: Thu Jul 06, 2006 7:37 pm

Re: david brown 785

Post by TEZB » Wed Mar 11, 2020 6:24 pm

I think the 785 was made for the German market, more or less an 885, not sure if it had the shorter stroke engine like the 770

jazo
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Location: New Zealand

Re: david brown 785

Post by jazo » Wed Mar 11, 2020 7:53 pm

I think i have seen a picture of a 775 possibly too. Was German I think
1694 4wd
1394 4wd
1294 4wd
30D
990x2
880
780x2
900

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db2d
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Re: david brown 785

Post by db2d » Wed Mar 11, 2020 8:14 pm

The 775 was made for the German market

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ollek
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Re: david brown 785

Post by ollek » Thu Mar 12, 2020 5:03 pm

I wrote the following about the 770 and the 775 in 2016. "The 770 was produced at the same time as the 780. These tractors had a non synchronized gear box. The 775 was the smallest model in the series of tractors with synchronized gear box. The tractor is more or less identical to the 885. The engine in a 775 is a short stroke AD3/49 with 38 hp and the 885 engine is a long stroke AD3/55 with 48 hp. The 775 have only single speed (540 rpm) pto, when the 885 have a dual speed (540/1000rpm) pto. The 775 is in large a low spec. version of the 885 and is missing some of the features found in a 885. A weak lift with the lever fully back in the quadrant can have many reasons. First of all, the linkage will lift with full power only when the control lever is fully back (pressing the spring) in the quadrant when tcu is selected. Pushing the lever forward in tcu mode will adjust the pressure in the lift cylinder from 0 to 50 bar depending on how far forward the lever is pushed. If the lift force is low in all selector positions, first clean the by-pass valve and then, if this does not help, check the pump pressure. The main control lever will move rearwards on its own if the friction disc needs adjustments. There is a plain washer and one or two nuts on top of the bellewille washer (ref 29 in the following line drawing). http://partstore.caseih.com/us/parts-se ... 03ar280819 Tighten the nut (nuts) until the lever stays in position when pushed fully forward when height control is selected. Do not tighten too much, the spring (ref 19) must be able to push the lever forward to unload the pump when you let go of the lever. Not many tractors were sold in other countries than Germany and because the German regulations were different in many respects compared to other countries, the tractors have features that can not be found in tractors sold outside of Germany. For example, a transmission brake and a so called high hitch draw bar are features peculiar to Germany. Most of the electrical system is identical to the 885 and you can find the 885 diagram in the following link. http://www.dbtc.co.uk/index.php?module= ... ew&pid=186

jp
Posts: 125
Joined: Wed Feb 15, 2006 5:59 pm
Location: BELGIUM

Re: david brown 785

Post by jp » Sat Mar 14, 2020 6:35 am

I'm talking about the 785 david brown, 3 cyl, I think only one PTO speed and no gearbox brake so I'm not sure it's for the German market? I have photos but I can't put them on the forum.
25D/1954
770+ db mower
db albion baler
db plough cm4
db plough cw2
850 vinneyard
990 implematic/ 1965+ db mower HM1 SC
880 4wd selene/1970
990 4wd selene/1968
990 4wd selene germany+L9 loader/ 1970
1200 4wd selene+LS12 loader/ 1970
885 4wd cararro /1980
995/6 4wd cararro+LO9 loader/1979
1210 4wd kramer germany/ 1976+ L012 loader
1212/ 1979
1412/ 1979

User avatar
ollek
Posts: 4430
Joined: Tue Apr 10, 2012 1:20 pm
Location: South West Finland

Re: david brown 785

Post by ollek » Sat Mar 14, 2020 8:59 am

The model and serial numbers are usually stamped on top of the front bolster on the right hand side just to the rear of the radiator bracket. Please check the numbers.

admin
Site Admin
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Re: david brown 785

Post by admin » Thu Mar 19, 2020 8:24 am

Photos added for JP
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SteveCollett
Posts: 636
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Location: Suffolk

Re: david brown 785

Post by SteveCollett » Thu Mar 19, 2020 11:31 am

interesting decals, never seen anything like that.
the tractor appears to have been restored. Possibly the decals were made incorrectly.
with the serial numbers it should be easily possible to find the correct model number

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ollek
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Location: South West Finland

Re: david brown 785

Post by ollek » Thu Mar 19, 2020 12:10 pm

I early wrote: "The model and serial numbers are usually stamped on top of the front bolster on the right hand side just to the rear of the radiator bracket. Please check the numbers". Can we please have the details in the stamping.

JimCochrane
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Re: david brown 785

Post by JimCochrane » Fri Mar 20, 2020 9:58 am

The 785 was an officially produced factory model . They were produced in small batches from 1971 to 1978. They were a rebadged 885 much like the 380. It was an economy build version of the 885 stripped to a very basic specifiction with many parts common to the prevoius model 780. The serial numbers are as 885 and have the same 355011 engine . I have no idea how many were made but the microfich records probably contain details . They seem to have been made for export and sale only to Germany ,Switzerland and Austria. I have recently found Details of this model listed in the Factory Drawing office ledgers . It is certainly a rare model , perhaps i will find them listed in the production line build records in the future.

The other rare model is the 775 this is basically an 885 with the 349001 engine they were numbered in the 775 serial number series up untill 1976 when they are incorporated into the 885 serial number range . I know there were 235 775 tractors up 1976 with there own serial numbers . 57 in 1972 92 in 1973 36 in 1974 ,50 in 1975 . in 1976 they became part of the 885 serial number run . A further 61 were made in 1976 ,16 in 1977 and only 11 in 1978.
134 off them will be Chocolate chassis.
Perhaps I will eventaully find quantities for the 785 and 380.
Hope this helps to clear up some confusion .Thanks to Roger Perriard for the photos .
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Last edited by JimCochrane on Fri Mar 20, 2020 10:15 am, edited 1 time in total.

JimCochrane
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Re: david brown 785

Post by JimCochrane » Fri Mar 20, 2020 10:04 am

This 785 has 885 serial number after 1976
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JimCochrane
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Re: david brown 785

Post by JimCochrane » Fri Mar 20, 2020 10:06 am

Chocolate 785s
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