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Farmall & IHC Tractors Discussion Forum

Adding Extra Hy-Tran - 1066

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04-25-2018 04:59:55

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I want to add the extra 5 gal. of Hy-Tran to my 1066. It's past the full line now but not by much.....say 1/4 in. For those that have added the extra 5 gal, how far over the full line is the oil level?

Thanks for your response.

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04-25-2018 18:30:08

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 Re: Adding Extra Hy-Tran - 1066 in reply to wicksfield, 04-25-2018 04:59:55  
U could take the 3rd link bracket off and look at oil level, then mark dipstick accordingly. IIRC halfway up on axles?

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04-25-2018 06:49:04

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 Re: Adding Extra Hy-Tran - 1066 in reply to wicksfield, 04-25-2018 04:59:55  
I wish to ask the question as to why you wish to overfill the rear end of this 1066? I remember my dad telling me about a recommendation coming from IH back in the 1960's to add more Hy-Tran to the rear end of their 806 in order to help quite the howl/whine from the rear end. Is this the reason why?

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04-25-2018 14:26:13

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 Re: Adding Extra Hy-Tran - 1066 in reply to 2002sliverado, 04-25-2018 06:49:04  
Silver, the hydraulic pump on these tractors have a suction tube that can come loose or o-ring failure. If it does, it will cavitate the pump. Over filling the Hy-Tran by 5 gal gets the level above the suction port so it doesn't matter if the tube becomes loose. I believe a cavitating pump could lead to a whole bunch of misdiagnosis in the hydraulic system.

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04-26-2018 09:04:57

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 Re: Adding Extra Hy-Tran - 1066 in reply to wicksfield, 04-25-2018 14:26:13  
Thank you for explaining that! It gave me a better understanding. Are there any detrimental affects to overfilling by this volume? Secondly, I posed a question a few days ago about hydraulic system capacity on a 66/86 series tractor and operating a Kinze 2200 planter. I am getting together with these guys this weekend. They are contemplating putting this planter on a 1486. I looked the tractor over some and thought it was a newer one with the PFC hydraulic system. It does not have the hydraulic oil filter along the side of the oil pan. I didn't look to see if it had the flow control levers on the floor of the cab in front of the right hand side controls. I don't know if it might have been new enough to have the PFC system, but may have been modified, which I suspect may be the case because there are two hoses along side the oil pan of the engine, where the PFC hydraulic filter would/should be. You mentioned this suction tube that can fall off or have a failure on the O-rings. Is this also a common occurrence on a 1486? I was told this tractor tends to chatter and struggle with folding the wings on a tandem disk. Might this be a sign of the problem you cited and it may be advantageous to overfill the rear end of their 1486?

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04-26-2018 16:43:06

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 Re: Adding Extra Hy-Tran - 1066 in reply to 2002sliverado, 04-26-2018 09:04:57  
My 1066 handles folding in the wings on my disk with no problem. If your friend's 14 chatters, I would say a lack of oil. First, check oil level. Next, change the wing hoses over to another scv. When was the last time the hydraulic filter changed? Next, I would inquire with somebody else if the 1486 can handle an extra 5 gallon of Hy-Tran. Sorry, I can't say for sure but wouldn't know why not. Hope it's not the dreaded....."need a new pump."

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04-25-2018 05:42:11

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 Re: Adding Extra Hy-Tran - 1066 in reply to wicksfield, 04-25-2018 04:59:55  
About an inch.Maybe 2"..I don't exactly remember.Make note of where the oil level is now. Your 1/4" inch 'over' wont really matter. Pour in 5 gallons,remark the stick.I mark them with a chisel to make a clean line across the stick that is easy to see.

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caterpillar guy

04-25-2018 05:10:52

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 Re: Adding Extra Hy-Tran - 1066 in reply to wicksfield, 04-25-2018 04:59:55  
Not sure on that. Probably about the 1/4-1/2 inch you have now. It spreads over a large area inside fills everything from the rear to the clutch section. If you drain it there are like 4 plugs to get out to do that. 3 beside each other at the back then 1 or 2 up in the front. The one hides above the drawbar in the rear. We did that one time on and 856 didn't see any difference on things so don't do it anymore.

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