hydraulic david brown

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danone50
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hydraulic david brown

Post by danone50 » Wed Aug 15, 2018 11:05 am

among you there is someone who uses this hydraulic connection
if yes do you have pictures thank you in advance

Image

jazo
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Re: hydraulic david brown

Post by jazo » Thu Aug 16, 2018 6:08 am

Depends on what you're wanting to achieve? You have to remove that plate and fit a remote valve or a power beyond plate to get flow from there
1394 4wd
1294 4wd
30D
990x2
880
780x2
900

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danone50
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Re: hydraulic david brown

Post by danone50 » Thu Aug 16, 2018 3:49 pm

to be able to put a single and double acting dispenser without going through the three-way valve
did you realize this type of connection if you have pictures thank you :wink:

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DB780
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Re: hydraulic david brown

Post by DB780 » Thu Aug 16, 2018 4:24 pm

Under the block there are three pipe ends, the rearmost one goes done to the control valve, the middle one comes up from the hydraulic pump and the front one is connected to the tractors internal lubrication system. If you look under the block you will see the rear two are connected whilst the front one is not.

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danone50
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Re: hydraulic david brown

Post by danone50 » Thu Aug 16, 2018 4:58 pm

so if I understand correctly it is necessary to remove the block if I want to connect a distributor
on my david brown at the moment i have the return loader and return hydraulic winch

Image

Image

when i bought my david brown it was already like this for the charger i add the back winch

philedge
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Location: Chester UK

Re: hydraulic david brown

Post by philedge » Thu Aug 16, 2018 6:48 pm

The front tapping is a hydraulic oil return port and the rear tapping is a hydraulic oil feed direct from the hydraulic pump. As others have said, it depends on what you want to do as to how you utilise the tappings or replace the cover. From your pictures your using the return tapping and I guess the supply for the loader and winch are coming from the 3 way valve on the left of the seat?
'66 880 Selectamatic rat.

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danone50
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Re: hydraulic david brown

Post by danone50 » Thu Aug 16, 2018 8:07 pm

Yes that's right
I would like in the future to be able to feed a distributor block in single and double effect without going through the three-way valve to operate tools hitched to the back
so without removing the block I can use the rear exit with the same assembly that the one already there
thank you :wink:

jazo
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Re: hydraulic david brown

Post by jazo » Fri Aug 17, 2018 4:36 am

No using the rear port in your picture will give you nothing. You have to split the flow from the centre pipe and return to the rear pipe under the cover
1394 4wd
1294 4wd
30D
990x2
880
780x2
900

cossyrec
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Re: hydraulic david brown

Post by cossyrec » Fri Aug 17, 2018 10:46 am


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danone50
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Re: hydraulic david brown

Post by danone50 » Fri Aug 17, 2018 12:07 pm

okay and after this handling must be put back the block cover

philedge
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Re: hydraulic david brown

Post by philedge » Sat Aug 18, 2018 7:28 am

jazo wrote:
Fri Aug 17, 2018 4:36 am
No using the rear port in your picture will give you nothing. You have to split the flow from the centre pipe and return to the rear pipe under the cover
880 manual shows the rear tapping as an oil feed. As I understand it the rear hump on the camels hump connects the flow from the pump to the selectamatic valve with the option of removing the plug in the tapping and connecting an external service. This will connect the pump output to both the external service and the selectamatic valve.
'66 880 Selectamatic rat.

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danone50
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Re: hydraulic david brown

Post by danone50 » Sat Aug 18, 2018 10:52 am

si il était possible qu'une personne ayant fait un branchement a partir de ce bloc puisse envoyer une image
se serais bien
encore une fois désolé pour mon anglais aproximatif :D

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danone50
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Re: hydraulic david brown

Post by danone50 » Sat Aug 18, 2018 10:52 am

if it was possible that a person who made a connection from this block could send a picture
would be fine
again sorry for my aproximative English :D

philedge
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Re: hydraulic david brown

Post by philedge » Sat Aug 18, 2018 12:39 pm

If you look in the thread linked to a few posts above, you will see some pictures. Your english is fine:)
'66 880 Selectamatic rat.

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DB780
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Re: hydraulic david brown

Post by DB780 » Sat Aug 18, 2018 4:55 pm

If you remove the block and block the rearmost pipe, a suitable bolt with an 'O' ring on will do, this will block the oil supply to the control valve so none of the tractors hydraulics will work. Then you have a constant pressure feed to the loader controls BUT YOU MUST HAVE A RETURNS LINE IN FROM THE LOADER CONTROL BANK TO THE FRONT PLUG LIKE IN THE ATTACHED PHOTO.
IMG_0499.JPG
IMG_0499.JPG (209.43 KiB) Viewed 1776 times

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