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-   -   Hydrostatic question (https://www.onlycubcadets.net/forum/showthread.php?t=29465)

smithviewfarm 01-16-2014 06:58 PM

Hydrostatic question
 
New owner of a 107. Tractor goes forward and reverse fine returns to Neutral when braking no creep. But today I noticed I could push tractor around when not running no matter where the locking lever was located so it is always in neutral. Is there something wrong with transmission or something not hooked up right? Should i just ignore this or could something be wrong or go wrong?

R Bedell 01-16-2014 07:08 PM

"IF" someone switch from the Manual Relief Valves to the Automatic Type, then that would be normal.

IF you have then Manual Type of Relief Valves, then I am thinking there is something wrong with these valve(s).

Yosemite Sam 01-16-2014 09:27 PM

FWIW, I have a 105 that does the same thing, runs great, pulls fine, pushes snow and goes up and down hill as it should. It's been like that for a long time, it doesn't have the auto release valves. It also happens to be the one that leaves a little puddle on the floor.

I'll put a new gasket in it one of these days, but I'm not going to worry about the ease of rolling, until something no longer works. (not at all sure that is the right thing to do though)

Cub Cadet 123 01-16-2014 10:24 PM

Quote:

Originally Posted by Yosemite Sam (Post 237641)
FWIW, I have a 105 that also happens to be the one that leaves a little puddle on the floor.

That one must be a male cub Sam, 'cuz it likes to mark its territory!:biggrin2:

Cub Cadet 123

Yosemite Sam 01-16-2014 11:41 PM

Quote:

Originally Posted by Cub Cadet 123 (Post 237647)
That one must be a male cub Sam, 'cuz it likes to mark its territory!:biggrin2:

Cub Cadet 123

Never thought about it before but you could be right, it's never been temperamental either...

cubfan 01-17-2014 12:11 AM

Kinda like a Television with a good picture,don't mess with it.Yosemite Sam and Cub Cadet123 thanks for the chuckle.:ROTF1:

IH Cub Cadet 01-18-2014 10:27 AM

Sounds like automatic relief valves have been installed. If so, the rolling is normal.

smithviewfarm 01-18-2014 11:30 AM

I am clueless about these valves. Where are they located? Can I get to them?

Sam Mac 01-18-2014 01:19 PM

Quote:

Originally Posted by smithviewfarm (Post 237877)
I am clueless about these valves. Where are they located? Can I get to them?

They are under the fender pan on top of the hydro pump. This is the link to the manual.

http://www.onlycubcadets.net/forum/s...ead.php?t=4643

R Bedell 01-18-2014 04:14 PM

This will help...

http://i176.photobucket.com/albums/w...n.jpg~original

http://i176.photobucket.com/albums/w...e.png~original

Rick M. 02-12-2014 03:21 PM

Hydrostatic info
 
I just realized how important this site is....So I joined....Have been playing with Cubs for 30 odd years and now realize how much I do not know....To the point,I have several leaky Dump Valves which I intend to redo as I have the equipment....I always considered that the main purpose of these valves was to bypass the motor and allow the wheels to turn when pushed or on an extreme incline but I was mistaken.....They are in there to maintain the high pressure circuits at a maximum of 3500 PSI and prevent physical damage to the aluminum case....It all makes sense to me now that I know their their real purpose....Used to roll the tractor without engine power is a bonus feature of the overall design and not the intended use...Something else I found is that sealing the vent hole in the valve top(weld up) will not work....Yesterday I tried it on my 782 since I do not care if it will roll or not....Mig'd both them closed and installed them.....No power to the diff in either direction......Ground off the welds and away she went....Thanks for your patience

Cub Cadet 123 02-12-2014 07:32 PM

Quote:

Originally Posted by Rick M. (Post 243049)
I just realized how important this site is....So I joined....Have been playing with Cubs for 30 odd years and now realize how much I do not know....To the point,I have several leaky Dump Valves which I intend to redo as I have the equipment....I always considered that the main purpose of these valves was to bypass the motor and allow the wheels to turn when pushed or on an extreme incline but I was mistaken.....They are in there to maintain the high pressure circuits at a maximum of 3500 PSI and prevent physical damage to the aluminum case....It all makes sense to me now that I know their their real purpose....Used to roll the tractor without engine power is a bonus feature of the overall design and not the intended use...Something else I found is that sealing the vent hole in the valve top(weld up) will not work....Yesterday I tried it on my 782 since I do not care if it will roll or not....Mig'd both them closed and installed them.....No power to the diff in either direction......Ground off the welds and away she went....Thanks for your patience

Glad you find this site helpful. Let me be the first to say :Welcome2: to our new friend up in the great white north...:CanadianFlag:

Cub Cadet 123

Yosemite Sam 02-12-2014 11:31 PM

Yeah, welcome...

You are correct, I think a couple of the guys here know what their talkin about.

Cubcrazy 02-13-2014 05:55 AM

Welcome to OCC!

Rick M. 02-13-2014 02:38 PM

Leaking Dump Valves
 
Thanks for the words of welcome......Went out yesterday and took the valves out of my 782 which would loose up to 2 quarts in 2 1/2 hour of blowing snow...There was an actual flow out the tops of both valves.....Machined off the valve top ,cleaned,installed new internal "o" ring and Mig'd the top back on...Ran few minutes up and down driveway-1000 feet..A small drop on top of one valve.....Nice fix...........................

ACecil 02-13-2014 07:38 PM

Quote:

Originally Posted by Rick M. (Post 243049)
I just realized how important this site is....So I joined....Have been playing with Cubs for 30 odd years and now realize how much I do not know....To the point,I have several leaky Dump Valves which I intend to redo as I have the equipment....I always considered that the main purpose of these valves was to bypass the motor and allow the wheels to turn when pushed or on an extreme incline but I was mistaken.....They are in there to maintain the high pressure circuits at a maximum of 3500 PSI and prevent physical damage to the aluminum case....It all makes sense to me now that I know their their real purpose....Used to roll the tractor without engine power is a bonus feature of the overall design and not the intended use...Something else I found is that sealing the vent hole in the valve top(weld up) will not work....Yesterday I tried it on my 782 since I do not care if it will roll or not....Mig'd both them closed and installed them.....No power to the diff in either direction......Ground off the welds and away she went....Thanks for your patience

Welcome to OCC! Glad to have you!


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