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wulfdog 
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Joined: 10 Jun 2012
Location: washington
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 Topic: 170 allis hydraulic filler
Posted: 10 Jun 2012 at 11:56am |
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Help! My 72 yearold mom has my 170 Allis in okla. She can't figure out where to pour the hydraulic fluid into the trans. Theres two dip sticks one on each side of the gearshift the one on the left is so low its not showing fluid on the dipstick. Do you pour new hyd. Fluid in that same hole? Also what is the modern equivalent fluid you can purchase like at autozone to replace this fluid. I read the manual says agco 821 xl is there a universal one she can get on sunday at an autoparts store that will work?
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wulfdog
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Posted: 10 Jun 2012 at 11:59am |
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I've been gone 4 years and just cant rember where it goes. I told her it seems logical to pour it where its needed. So i suggested down the same hole as the dipstick seems logical to me.
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AC200Puller
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Joined: 04 Dec 2011
Location: Wisconsin
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Posted: 10 Jun 2012 at 12:02pm |
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Yes both compartments are filled though the dipstick holes. you can buy hydraulic fluid at any farm or parts store.
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wulfdog
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Posted: 10 Jun 2012 at 12:17pm |
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Thanks ac200 i was sure that was right. Would any 90 weight hyd fluid work?
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DrAllis
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Posted: 10 Jun 2012 at 12:25pm |
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NO !! hydraulic fluid, not 80/90 wt.
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AC200Puller
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Posted: 10 Jun 2012 at 12:38pm |
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Yes as the doc says hydraulic fluid not gear lube .
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wulfdog
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Posted: 11 Jun 2012 at 12:11am |
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Ok thanks. I was about to tell her the wrong thing.
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wulfdog
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Posted: 11 Jun 2012 at 12:16am |
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Does the left dipstick and the middle one both take hydraulic fluid? Shes going to john deer what should she ask for? What hydraulic fluid weight etc. Sorry to sound stupid.
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AllisUpstate
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Joined: 06 May 2011
Location: Upstate NY
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Posted: 11 Jun 2012 at 5:25am |
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The left forward one with the hex nut filler is the hydraulic fluid one, while the right one slightly rearward with the cap is the 90W gear lube.
But the real thing I gotta ask is your 72 year old mom driving the tractors? Way to go!
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Longmeadow Farm
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Joined: 30 Jul 2011
Location: Eastern NY
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Posted: 11 Jun 2012 at 5:49am |
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I use John Deere Hy-Tran in both compartments in my 175. left, hex-nut top, one is hydraulic system and typically gets low from normal use and the right, with the breather cap, is the transmission, which I run a bit higher than factory spec, using either Case/IH or John Deere hydraulic oil, upon recommendation a few years back by a master mechanic, after a transmission rebuild. Do not use 80-90 weight gear oil in the transmission.
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wulfdog
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Posted: 11 Jun 2012 at 9:30am |
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You'd be in for a fight if you tried to stop her from driving that tractor. She mounts that thing like a ten year old. She has 2 screw to brushog so she sits and watches for the gras to think about growing and shes right after it. Thanks so much for the help.
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wulfdog
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Posted: 11 Jun 2012 at 9:31am |
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Thanks do much for the help i've alresdy called her.
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NC Bruce
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Posted: 11 Jun 2012 at 10:48am |
According to AC manuals, we've been using: AC 170's left side(sitting on tractor seat) hex head dipstick quality Hydraulic Fluid , and right side large round headed dipstick takes the 80-90wt oil. the AC 175's use the quality Hydraulic Fluid in both sides. I assume this is true for even the last few(newest) AC 170's, and first few(oldest) AC 175's ?
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AllisUpstate
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Posted: 11 Jun 2012 at 10:56am |
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wulfdog,
Send my regards to your mom! I hope I'm still bushogging with my D17 when I'm 72. Good for her. At least you never have to worry about what to get her for Mother's Day - I'll bet she'd love an AC cap or something.
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Longmeadow Farm
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Location: Eastern NY
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Posted: 11 Jun 2012 at 3:29pm |
Ya learn something every day. I just checked my IT manual that covers the 170 & early 175s...236 engine. The "book" says to use hydraulic oil in the hydraulic system and gear oil in the transmission. My 175 is a late model serial number 7060 ..year 1980.and the ops manual calls for 821 fulid in both. When did this change? And why? I was under the impression that the 170/175 transmissions were essentially the same unit? Were there as many transmission problems after switching to the 821 fluid? Thanks, just curiuos...I guess
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DanD
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Location: WI
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Posted: 11 Jun 2012 at 3:48pm |
 Longmeadow Farm wrote:
Ya learn something every day. I just checked my IT manual that covers the 170 & early 175s...236 engine. The "book" says to use hydraulic oil in the hydraulic system and gear oil in the transmission. My 175 is a late model serial number 7060 ..year 1980.and the ops manual calls for 821 fulid in both. When did this change? And why? I was under the impression that the 170/175 transmissions were essentially the same unit? Were there as many transmission problems after switching to the 821 fluid?Thanks, just curiuos...I guess |
The transmissions didn't change at all. THe available oils did. WHen they came out with trans-hydraulic oil, AC changed their official recommendations even for older tractors, recommending the use of the 821 where the recommendation earlier had been gear oil.
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Charlene
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Posted: 20 Jul 2019 at 11:55am |
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Where is the drain plug located for the hydraulic oil?
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Longmeadow Farm
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Posted: 20 Jul 2019 at 5:26pm |
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under the power director housing is a sump with a drain plug. By removing the sump pan you can get at the internal filter screen... might be a good preventative step ..probably has never been cleaned.
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