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Using hydraulic/trans oil in D14 transmission
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jtheise4 View Drop Down
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Joined: 23 Feb 2011
Location: SE Michigan
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    Posted: 11 May 2011 at 7:20am
Hello everyone.  I've done several searches and it sounds like its perfectly fine to use hydraulic/transmission oil in the transmission on a D14, even though the manual states to use 80W oil.  I stopped into my local AGCO dealer yesterday to pick up some Permatran 821 for the power director and hydraulic pump.  I didn't even see any 80W90 gear oil in the shop.  I wanted to talk to the owner, but he was way to busy helping real farmers out, so I didn't want to take up his time.  My question is, are there any advantages/disadvantages to using hydraulic/transmission oil in the transmission as opposed to using 80W90 gear oil?  It would certainly be easier for me to just have to keep one fluid at the house for topping off/changing fluids, but at the same time, I don't want to damage anything just to make things easier on me.  Thank you for your help.

Edited by jtheise4 - 11 May 2011 at 7:20am
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jaybmiller View Drop Down
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Joined: 12 Sep 2009
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Points: 23856 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jaybmiller Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2011 at 7:31am
I've run 'universal hydraulic/transmission oil' in both my D-14s for years, no problems.
Easy to remember what goes where ! Engine oil in the engine, finals(bull drives) almost never need anything(unless they leak) , everything 'in between' gets 'U H/T' oil !
 
It's best to totally drain all 3 chambers, just be sure to have an empty 5 gallon bucket BEFORE you remove the plugs !! yeah, I forgot ONCE !!
 
3 D-14s,A-C forklift, B-112
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jtheise4 View Drop Down
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Originally posted by jaybmiller jaybmiller wrote:

I've run 'universal hydraulic/transmission oil' in both my D-14s for years, no problems.
Easy to remember what goes where ! Engine oil in the engine, finals(bull drives) almost never need anything(unless they leak) , everything 'in between' gets 'U H/T' oil !
 
It's best to totally drain all 3 chambers, just be sure to have an empty 5 gallon bucket BEFORE you remove the plugs !! yeah, I forgot ONCE !!
 
Thanks for the info.  I actually have a 58 guart drain pan that I use when draining the fluids out of my other tractor.  A 5 gallon pail doesn't cut it on that one!
 
With the final drives, do they have a drain plug or do you just pull the fill plug and use an evacuator?
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Bill Deppe/AC Salvag View Drop Down
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The only possible drawback is the lighter viscosity oil may allow more seepage around the older seals
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CTuckerNWIL View Drop Down
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Points: 22824 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CTuckerNWIL Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2011 at 8:26am
 
Quote

With the final drives, do they have a drain plug or do you just pull the fill plug and use an evacuator?

The best thing might be to remove the pans, clean out 50 years of gunk from the bottom, make a new gasket and replace them adding new gear lube.


Edited by CTuckerNWIL - 11 May 2011 at 8:27am
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