Sundstrand hydro transmission?

[rbthefirst 0]

I just bought a 1975 Wheel Horse C120. It needs to have the hydro transmission rebuilt. Where can I find a rebuild kit or parts for it?

Any help would be greatly appreciated! Thank you. Here is a picture of a transmission just like mine.

Edited June 17, 2018 by rbthefirst
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[pfrederi 17,887]

There isn't really any kit beyond a package of seals.  Some parts are available from LJ Fluid Power.  The picture is of a piston to piston check here for the service manual.

 

  Here are some pictures of a D series Pump repair (very similar to your pump)

 

 

This is not a Satruday afternoon in the driveway project.

 

What is wrong with your unit???

 

Edited June 17, 2018 by pfrederi

[daveoman1966 3,762]

Your sundstrand unit is 90-1136 and here is a rebuild kit source.

Part # 99890    seal kit $92.00   O-rings, gaskets, seals

Can ship from Nova in 2-3 days.

 

Gordy Pearson

Nova Hydraulics

6212 Parliament Drive

Indianapolis,  IN 46220

Ph: 317.322.0242

Fax: 317.322.0247

 

Download them repair manual and follow the step-by-step procedures.  This is not a difficult task, but takes time to do it right.  You MUST rebuild the hyd pump and motor assy's.  If you'd give me your email address, I can forward specific instructions of what to do.  I have rebuilt sevferal of these units over the past 20 yeaars or so.     I am:

daveoman@windstream.net 

[daveoman1966 3,762]

Here are two Excel ss detailing the parts and schematics. You may find them helpful.  YOU can do this...  just be meticulous and keep work area clean.  Have a coffee can of kerosene to rinse parts as you progress thru the process of re-facing the brass and other steel internal parts. 

Once again....what is your email address?

 

MOTOR 90-1136, 37, 40.xlsx

PUMP 90-1136, 37, 40.xlsx

[KC9KAS 4,741]

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