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Hydraulic fluid into transmission
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Freewheeling View Drop Down
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Joined: 05 Nov 2017
Location: Wisconsin
Points: 152 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Freewheeling Quote  Post ReplyReply Direct Link To This Post Topic: Hydraulic fluid into transmission
    Posted: 05 Nov 2017 at 3:19pm
My hydraulic cylinders were leaking so I've been adding fluid periodically.  When I checked the transmission, a lot of fluid flowed out of the filler and appears to be where the hydraulic fluid was going. I use universal hydraulic fluid in the hydraulics and 85-140 in the trans & differential. There is no gear lube in the hydraulic fluid.  Since I see where some are using only universal fluid in the trans and differential I assume it hasn't caused a problem being mixed in with the gear lube.    What's the point of failure and how big a job is it to fix?  Thanks.
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Freewheeling View Drop Down
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Joined: 05 Nov 2017
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Points: 152 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Freewheeling Quote  Post ReplyReply Direct Link To This Post Posted: 05 Nov 2017 at 3:20pm
Tractor is a WD
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Gary(VA) View Drop Down
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Joined: 13 Sep 2009
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Points: 337 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Gary(VA) Quote  Post ReplyReply Direct Link To This Post Posted: 05 Nov 2017 at 3:39pm
There is a seal between the hydraulic reservoir and hand clutch that needs to be replaced. Tractor needs to be split in three sections to get the shaft out and change seal. You may want to change any other leaking seals in pto and hydraulic pump/valve while its apart.
It's not that hard if you have proper setup to split.

Edited by Gary(VA) - 05 Nov 2017 at 4:03pm
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Freewheeling View Drop Down
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Points: 152 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Freewheeling Quote  Post ReplyReply Direct Link To This Post Posted: 06 Nov 2017 at 5:39am
Thanks.  What's the proper setup? 
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Stan R View Drop Down
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Joined: 03 Dec 2009
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Points: 969 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Stan R Quote  Post ReplyReply Direct Link To This Post Posted: 06 Nov 2017 at 5:49am
(heated) garage (with concrete floor to roll jack, tractor), floor jack, chain fall, wood blocking, tools (wrenches) and a helper
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Freewheeling View Drop Down
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Joined: 05 Nov 2017
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Points: 152 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Freewheeling Quote  Post ReplyReply Direct Link To This Post Posted: 06 Nov 2017 at 6:04am
I've split my C before so I kinda know the drill..   I assume it's best to work from front to back?
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Gary(VA) View Drop Down
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Joined: 13 Sep 2009
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Points: 337 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Gary(VA) Quote  Post ReplyReply Direct Link To This Post Posted: 06 Nov 2017 at 3:11pm
I unbolted the transmission from the center section(torque tube) and rolled it back away. Then used engine lift to remove center section from front. If you send me your email I might have some photos saved I can email you.
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Points: 152 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Freewheeling Quote  Post ReplyReply Direct Link To This Post Posted: 06 Nov 2017 at 8:01pm
fsterzen15@gmail.com
 
Thank you!
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Bill Long View Drop Down
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Joined: 12 Sep 2009
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Points: 4556 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Bill Long Quote  Post ReplyReply Direct Link To This Post Posted: 06 Nov 2017 at 9:47pm
That was a common problem with the early WD tractors.  We replaced seals and it seemed to work but the real solution came later when the seal was replaced with a double seal.  One basically facing each way.  That seal did the job.  No problems after that.
I know you have better equipment today but we used the level floor with a good floor jack to raise and move in the hydraulic housing.  Put waxed paper on the shaft end to save the seal to the clutch
Course that was almost 70 years ago.  I know you have better equipment today.
Might try Sandy Lake and see if they have the proper seal
Good Luck!
Bill Long
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Freewheeling View Drop Down
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Joined: 05 Nov 2017
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Points: 152 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Freewheeling Quote  Post ReplyReply Direct Link To This Post Posted: 06 Nov 2017 at 9:55pm
Thanks Bill.  I'm going to be using the same kind of equipment you used.  Old school all the way..
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Can this happen on other models as well?
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Bill Long View Drop Down
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Points: 4556 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Bill Long Quote  Post ReplyReply Direct Link To This Post Posted: 07 Nov 2017 at 2:11pm
Originally posted by southwindson southwindson wrote:

Can this happen on other models as well?

After the double seal there was no problem with the WD's.  Course the WD-45 had the double seal too.
As to other units I really don't think so.  At least the models I sold - up to the early D Series (D-10 - D-17)
The configuration of the housings was different at that time.
Someone will have to chime in with experience on AC models afteer 1962.
Good Luck!
Bill Long 
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