Hydraulic oil change on 7040

The rear differential elements 70269921 70269922 'belly filters' - you will not loose over a quart of oil pulling them (unless someone has removed the inside trap doors :-( . Screw out the retaining bolts, clean out the nuts welded to the covers and screw the bolts in them and the retaining bolts will push the cover out. PULL THE PLUGS OUT OF THE END OF
THE OLD ELEMENTS AND REINSTALL THEM IN THE NEW ONES. Failure to do so will cause big problems. There are drain plugs visible and yes 25 gallons should do it. The spin on is standard procedure. There is a screen for the georter pump directly behind the pumps accessed by removing the nearly square plate holding it up. 70265382 is the plate # look it up in agcopartsbooks.com
You will not get all the oil out - too many cavities - but enough to do the job you are intending to do. If you are trying to flush out all possible- purge the remote lines and steering lines and cylinder - lower the lift arms as well.

Edited by tbran - 26 Feb 2018 at 1:44pm

When told "it's not the money,it's the principle", remember, it's always the money..

Thanks tbran and Leon B Mo. Doesn't seem too bad then, Have 4 pails of oil so just over 20 gallons, will have to grab another.

Found a huge hole in the exhaust diffuser elbow. Agco wanted $280 so I ordered one of ebay, $120 Canadian with shipping. Hopefully it works ok.

One remote valve seems stuck, going to have to free it up. And the tach isn't working

You own two 7040 tractors and must not have an owners manual ??? That would be $$$$ well invested.........

Yeah Going to order one today or tomorrow. Have the big thick service/repair manual, just never bought the operators yet.

Year model - amp rating - you are going to have an issue with the third prong which is the off set prong - not the side by side - giving the tach the correct signal possibly as to correct rpm - you will have to select the correct size of pulley and belt groove size to make the tach read correctly. Most later 7040's had Neihoff alternators$$$$... On my 7040 I drilled and tapped for flywheel pickup and procured an 8000 pick up and tach... then went with a 100 amp one wire alternator... todays alternator technology is much better than in the early day whenthey switched from delco to Neihoff due to alternator failures from the delco's...

When told "it's not the money,it's the principle", remember, it's always the money..

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nick121 Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 13 Apr 2016 Location: ontario Points: 322	Post Options Post Reply Quote nick121 Report Post Thanks(0) Quote Reply Topic: Hydraulic oil change on 7040 Posted: 26 Feb 2018 at 12:51pm
	Bought a second 7040 Just ordered the 3 filters,. 2 back ones and one for the P.D. How many gallons of fluid does the whole tractor take? Rear end + Trans under seat? 25 gallons should do it I figure How hard is it to change the rear filter elements? and where are the drain plugs located? Thanks in advance, and sorry for all the questions

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tbran Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 14 Sep 2009 Location: Paris Tn Points: 3471	Post Options Post Reply Quote tbran Report Post Thanks(0) Quote Reply Posted: 26 Feb 2018 at 1:26pm
	The rear differential elements 70269921 70269922 'belly filters' - you will not loose over a quart of oil pulling them (unless someone has removed the inside trap doors :-( . Screw out the retaining bolts, clean out the nuts welded to the covers and screw the bolts in them and the retaining bolts will push the cover out. PULL THE PLUGS OUT OF THE END OF THE OLD ELEMENTS AND REINSTALL THEM IN THE NEW ONES. Failure to do so will cause big problems. There are drain plugs visible and yes 25 gallons should do it. The spin on is standard procedure. There is a screen for the georter pump directly behind the pumps accessed by removing the nearly square plate holding it up. 70265382 is the plate # look it up in agcopartsbooks.com You will not get all the oil out - too many cavities - but enough to do the job you are intending to do. If you are trying to flush out all possible- purge the remote lines and steering lines and cylinder - lower the lift arms as well. Edited by tbran - 26 Feb 2018 at 1:44pm
	When told "it's not the money,it's the principle", remember, it's always the money..

Leon B MO Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Location: Old Monroe, Mo Points: 2178	Post Options Post Reply Quote Leon B MO Report Post Thanks(0) Quote Reply Posted: 26 Feb 2018 at 2:33pm
	I'm working on a 7060 right now. I had steering cyl off to rebuild, oil cooler off to test, replaced all cooler and steering lines, drained trans, differential and both final drives, changed all 3 filters. I put 20 galloin it and that wasn't enough. I had to get another 5 gallons. Leon B Mo
	Uncle always said "Fill the back of the shovel and the front will take care of itself".

nick121 Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 13 Apr 2016 Location: ontario Points: 322	Post Options Post Reply Quote nick121 Report Post Thanks(0) Quote Reply Posted: 26 Feb 2018 at 5:05pm
	Thanks tbran and Leon B Mo. Doesn't seem too bad then, Have 4 pails of oil so just over 20 gallons, will have to grab another. Found a huge hole in the exhaust diffuser elbow. Agco wanted $280 so I ordered one of ebay, $120 Canadian with shipping. Hopefully it works ok. One remote valve seems stuck, going to have to free it up. And the tach isn't working

WD45Diesel57 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 20 Jul 2010 Location: Varna, Ont. Can Points: 646	Post Options Post Reply Quote WD45Diesel57 Report Post Thanks(0) Quote Reply Posted: 27 Feb 2018 at 7:19am
	nick121 where abouts are you in Ontario?
	1-B's, 2-C, 2-CA's,2-WF, 1-WC,1-G, 3-WD's, 2-WD45, 1-RC, 1-D17 Diesel, 1-D14, 2-D15,1-D17 row crop,1-D19 gas and All Crop 40,60,66,72,90 and 100

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 21360	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 27 Feb 2018 at 7:20am
	You own two 7040 tractors and must not have an owners manual ??? That would be $$$$ well invested.........

nick121 Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 13 Apr 2016 Location: ontario Points: 322	Post Options Post Reply Quote nick121 Report Post Thanks(0) Quote Reply Posted: 27 Feb 2018 at 11:55am
	I Live south of Guelph.. Farm up near owensound

nick121 Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 13 Apr 2016 Location: ontario Points: 322	Post Options Post Reply Quote nick121 Report Post Thanks(0) Quote Reply Posted: 27 Feb 2018 at 11:57am
	Yeah Going to order one today or tomorrow. Have the big thick service/repair manual, just never bought the operators yet.

nick121 Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 13 Apr 2016 Location: ontario Points: 322	Post Options Post Reply Quote nick121 Report Post Thanks(0) Quote Reply Posted: 28 Feb 2018 at 7:50am
	Ok, So operators manual ordered. One more question, Alternator isn't charging It's a Delco Remy, Agco parts book lists 2 numbers. 1100583 And 1102920 What is the difference?

tbran Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 14 Sep 2009 Location: Paris Tn Points: 3471	Post Options Post Reply Quote tbran Report Post Thanks(0) Quote Reply Posted: 28 Feb 2018 at 8:30am
	Year model - amp rating - you are going to have an issue with the third prong which is the off set prong - not the side by side - giving the tach the correct signal possibly as to correct rpm - you will have to select the correct size of pulley and belt groove size to make the tach read correctly. Most later 7040's had Neihoff alternators$$$$... On my 7040 I drilled and tapped for flywheel pickup and procured an 8000 pick up and tach... then went with a 100 amp one wire alternator... todays alternator technology is much better than in the early day whenthey switched from delco to Neihoff due to alternator failures from the delco's...
	When told "it's not the money,it's the principle", remember, it's always the money..

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 21360	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 28 Feb 2018 at 9:14am
	I always said a Delco alternator was very easy to work on. Good thing, because you got to work on them a lot !!