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Wheel Horse 12 Automatic Question


 
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Mike in MI
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Joined: 11 Sep 2004
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PostPosted: Wed Nov 21, 2012 6:24 pm    Post subject: Wheel Horse 12 Automatic Question Reply to specific post Reply with quote

I pick up a 1973 Wheel Horse 12 that has hydro transmission the other day and I"m some what a newbee on these models. Question I have is I can"t seem to find the free wheel valve so I can move it when engine is shut off. Mower has been stored in back of a van truck for better than 30 years. (had to load it the hard way)
I looked all over on the transmission and probably past over a few time and didn"t know it?
Thanks for your help. Have a Happy Thanksgiving. Mike
 
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wisbaker
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PostPosted: Wed Nov 21, 2012 8:39 pm    Post subject: Re: Wheel Horse 12 Automatic Question Reply to specific post Reply with quote

My Wheel Horse 525-H doesn't have one, you can push it around the shop SLOWLY. Sticker on it says hand push only, towing may result in damage.
 
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6jack
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PostPosted: Thu Nov 22, 2012 3:20 am    Post subject: Re: Wheel Horse 12 Automatic Question Reply to specific post Reply with quote

manual
Untitled URL Link

 
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joe csuti
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PostPosted: Thu Nov 22, 2012 3:35 am    Post subject: Re: Wheel Horse 12 Automatic Question Reply to specific post Reply with quote

Depending on when in 73 tractor built,tow/push valve could be in 2 different locations on hydro pump due to fact sundstrand changed over to a piston pump design & a new manifold on same in mid 73,hydro pump may be older style used to mid 73 or newer style pump.

With fender/seat raised & looking at pump from pulley side,look at manifold mounted on rear of pump,look at left top corner of manifold,if pump pre 73 design you'll see a stub shaft in left corner with a roll pin thru it to form a T handle(roll pin may be missing)turning this shaft 1/2 turn will put hydro into freewheel.

If no stub shaft in top of manifold then pump newer piston style(after mid 73)got to opposite side of tractor to see rear side of pump/manifold(left side of tractor)look at left forward faceing side of manifold,according to service manual at very bottom of forward faceing side there should be a stub shaft in manifold(may/may not have roll pin in shaft)this is tow/freewheel valve.As has been said there should be a decal on frame/trans with an arrow in it pointing to valve,but it may have come off.

Goto website below with mod/sn of tractor off id tag,see if service manual for transaxle avail as a free download,also check if operators manual a free download.

CAUTION-IF you start fooling with trans & have to add fluid on pre mid-73 pumps trans fluid is ATF dexronII(red)if pump mid 73/later fluid is 10-30 or 10-40 SAE motor oil,do not mix the oils.

https://lookup3.toro.com/request/request.cfm
 
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Mike in MI
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PostPosted: Thu Nov 22, 2012 1:43 pm    Post subject: Re: Wheel Horse 12 Automatic Question Reply to specific post Reply with quote

Thanks you guys for answers & help on this. I will go down to the work tomorrow and take a look at the transmission. 6jack, URL link I pulled up a picture of the trans. I think the transmission in this mower a Sunstrand-Hydro? Model # 5.1010 8
Thanks Again! Mike
 
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