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#1
05-23-2012, 10:04 AM
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Hytran leak on 1782 transmision
Hello ,
There is hytran leak from hydraulic transmision housing area. I starts only after a while- when its hot and working. There is no leak when cold. Anyone knows what could be the cause? 
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#2
05-23-2012, 05:00 PM
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Where exactly is it leaking from? That would give an idea as to where to start the search...
__________________
CCC 784 w/ Triple Hydraulics IH 982 Cub Cadet Commercial H1748 Walk-Behind 50C Deck 42" Hydraulic Angle Front Blade 41" IH Rear Blade QA42A Snowthrower
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#4
05-23-2012, 05:36 PM
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Where it is leaking - it looks like area where hydro pump joins to main chasis housing .- attached one picture; and also area of trunion shaft lip seal. The top of pump where the valves are located is dry.
Can be this leak still be caused by bad valves? or its more gasket problem.. - but then its not leaking when unit is cold/ not operating.
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#5
05-23-2012, 08:32 PM
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Pull the tunnel cover off and crank the tractor over, do not start it, just let it turn over. I had a similar problem with my 1572, here is a link to what mine looked like. Mine was the one of the valves leaking. Be careful with that tunnel cover off.
http://www.onlycubcadets.net/forum/s...ad.php?t=11917
__________________
1572, 1864 x2, 1810 x2, 1863 & GT1554(Dad's Ole Mowers), 1811,782D, 1872 x2, 782DT(Sold), 3235, 1860, 1772 with 3-point and Turbo.
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#7
05-24-2012, 07:57 AM
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If it looks like the leak is from where the pump attaches to the main housing, there is a gasket there, but I couldnt' see it just going bad all of a sudden. Check that the bolts that hold it on are all tight.
The circular cover underneath the pump is a seal point also - there is no gasket/o-ring here, it's just metal on metal seal that has to keep in the hy tran. If you can spin it by hand, it's too loose - give it a good tap with a hammer to tighten it up in the hole. On the bottom of the pump, where the suction tube enters, there is an male ORB to male JIC37. The O-ring could have given up on this, or the suction tube may have come loose - check to make sure everything's tight there. Careful taking this fitting loose or you can drain all of your hydro fluid out. Last but not least, check the housing for stress cracks. It is aluminum, so some fatigue may have taken place and soem stress cracks may have occurred. Just my  Good luck! Nate
__________________
CCC 784 w/ Triple Hydraulics IH 982 Cub Cadet Commercial H1748 Walk-Behind 50C Deck 42" Hydraulic Angle Front Blade 41" IH Rear Blade QA42A Snowthrower
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#9
05-24-2012, 06:09 PM
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I know it seems silly but if the filter is leaking the prop fan can blow some of the fluid up on the bottom of the transaxle and make it look like it is leaking there. So check the filter and make sure it is tight.
__________________
1811 Hydro "Failing to prepare is preparing to fail". 
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#10
05-24-2012, 09:09 PM
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This is the cover I was talking about.
__________________
CCC 784 w/ Triple Hydraulics IH 982 Cub Cadet Commercial H1748 Walk-Behind 50C Deck 42" Hydraulic Angle Front Blade 41" IH Rear Blade QA42A Snowthrower
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