Hydraulic take off on db 25

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bedwards1966
Posts: 856
Joined: Sun Mar 07, 2010 10:36 pm
Location: North Yorkshire

Re: Hydraulic take off on db 25

Post by bedwards1966 » Sat Apr 20, 2019 9:03 pm

Presumably it would be OK to flush these old machines out with a cheap, thin and easily available mineral oil. Nowhere near as extreme as diesel but probably more effective than 90 weight oil?

Gard
Posts: 237
Joined: Sun Apr 06, 2008 2:25 pm
Location: Fairfax Vermont USA

Re: Hydraulic take off on db 25

Post by Gard » Sat Apr 20, 2019 9:57 pm

I flushed out the transmission in my late 900 (pre implematic) with diesel. I had found the gauze disconnected and filled with water and crud. I think I have had just about every hydrauliuc component apart and cleaned (3ph valves, ram cylinder and TCU valve and pump). I don't know if diesel was the right thing to do but at the time it was cold out. If it was warmer it would not be that much more expensive to just use oil and change it a few times.

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cobbadog
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Location: beautiful Coopernook NSW. near Taree. NSW. Australia

Re: Hydraulic take off on db 25

Post by cobbadog » Sun Apr 21, 2019 6:45 am

Thanks for the replies.

Ajax123
Posts: 75
Joined: Mon Dec 11, 2017 8:38 pm
Location: Lincolnshire

Re: Hydraulic take off on db 25

Post by Ajax123 » Tue Apr 23, 2019 8:59 am

All is now tight with no external leaks having fixed the rubber take off pipe with another Douty washer. Just awaiting oil delivery later today.. will keep you posted.Yes I know these might seem like simple questions but I lay floors for a living and haven't done anything much with tractors before. I take the opinion that if you don't know...ask. So quick question. how much oil tends to remain in the hydraulic ram on the implement when relaxed. I can take of the pipe and empty that but does the ram itself need to be purged of contaminated oil in any way. I'm guessing that it will simply drain out like the sum if left for a few days.

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ollek
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Location: South West Finland

Re: Hydraulic take off on db 25

Post by ollek » Tue Apr 23, 2019 9:35 am

If you by saying "hydraulic ram on the implement" mean the trailer tip cylinder, then you just let the tip completely down before you remove the transmission drain plug. There is no need to disconnect any pipes or hoses when you change the transmission oil but please ensure that all cylinders are fully "in". Please also remember to lower the 3-point hitch completely before you drain the transmission. You can check the cleanness of the oil in the tip by removing the coupler from the hose when the tip is fully down.

Ajax123
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Joined: Mon Dec 11, 2017 8:38 pm
Location: Lincolnshire

Re: Hydraulic take off on db 25

Post by Ajax123 » Tue Apr 23, 2019 10:49 am

thanks Ollek. Yes I mean the cylinder. In this case its on the loader but same thing.

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ollek
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Location: South West Finland

Re: Hydraulic take off on db 25

Post by ollek » Tue Apr 23, 2019 1:08 pm

Is the front loader equipped with single actin lift cylinders, operated with the tractor main hydraulic lever, and mechanical bucket control or is the loader operated with external levers with a valve bank getting its oil supply from the tractor and having a return connection to the gear box?

Ajax123
Posts: 75
Joined: Mon Dec 11, 2017 8:38 pm
Location: Lincolnshire

Re: Hydraulic take off on db 25

Post by Ajax123 » Tue Apr 23, 2019 1:49 pm

It's a singe acting lift cylinder operated via the tractor hydraulic lever via a simple open/shut screw diverter valve No hydraulic bucket control just a release lever operated by a handle and wire.

Ajax123
Posts: 75
Joined: Mon Dec 11, 2017 8:38 pm
Location: Lincolnshire

Re: Hydraulic take off on db 25

Post by Ajax123 » Fri Apr 26, 2019 4:29 pm

Filter cleaned.... yuk very gunky. think its a while since it was last changed... oil going in later... fingers crossed

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