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Calling ALL Hydraulics Guru's!


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#91 ducky OFFLINE  

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Posted November 21, 2016 - 03:52 PM

No Problem Kenny. Just repost when you have time.

I have my browser on auto refresh so I will catch your next post.


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#92 KennyP ONLINE  

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Posted November 21, 2016 - 04:34 PM

Don & I had a good conversation (phone) and he is doing some super sleuthing on his end to see what we can figure out.


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#93 KennyP ONLINE  

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Posted November 21, 2016 - 04:45 PM

Here's a pic after it has warmed up real good. About 1/4 throttle!

Keep getting an upload failure error!

 

 

 

DSCN2402.JPG

 

Success after the fifth try!


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#94 ducky OFFLINE  

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Posted November 21, 2016 - 07:19 PM

Here is some info I found form Wheel Horse.  Same as Massey/Snapper. 

Attached File  WH61-90 #284 Hydraulic Lift Valve Repair Kit.pdf   76.32KB   25 downloads

Attached File  OMCO Valve Repair Procedure.pdf   1.52MB   15 downloads

OMCO Valve Parts Breakdown.jpg

OMCO Valve Exploded View.jpg

OMCO Valve Bottom View.jpg .3

OMCO Valve Date code.jpg

OMCO Valve Side View.jpg

 


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#95 ducky OFFLINE  

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Posted November 21, 2016 - 07:23 PM

Kenny

I found a couple of kit online and got them coming.

Also heading to bros Hydraulic shop to fit some up.


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#96 KennyP ONLINE  

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Posted November 22, 2016 - 05:33 AM

Didn't know WH used this valve. Thanks for all the info.



#97 Alc ONLINE  

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Posted November 22, 2016 - 06:28 AM

Kenny I'm sure your going to get to the bottom of this soon ,


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#98 KennyP ONLINE  

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Posted November 22, 2016 - 06:38 AM

We are working on it, Al. Just haven't figured out why the valves are building pressure when in neutral.



#99 ducky OFFLINE  

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Posted November 22, 2016 - 08:35 AM

Kenny

I am going down to my brothers shop this morning to round up some orings.

Also doing to check with local Toro guy to see what he can get for Wheelhorse parts.

 

If anybody else has an idea of why this is happening please chime in.

 

I have never seen this on a Massey or Snapper.

Massey sets the hydraulic lift pressure and charge pressure on the Sundstrand hydro unit. it has 0 return pressure unless the filter is dirty.  The correct filter has a 50 PSI bypass valve should it get that bad.

 

Snapper sets the charge pressure (30-90 PSI) with a non adjustable relief internal to the hydro unit and hydraulic pressure is set on the control valve and will have 30-90 PSI back pressure in the return line to supply charge pressure for the high side of the hydro.


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#100 ducky OFFLINE  

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Posted November 22, 2016 - 09:05 AM

Kenny

On that snapper valve would you do one more test for me.

With the test gauge on the inlet side of the control valve, run the tractor at high idle (Wide Open Throttle) and move the spools slightly in one direction and the other and see if the 200 PSI reading drops at all. If one spool at a time does nothing try both at the same time.  you only need to move the spool an 1/8"-3/16".

I'll explain later.


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#101 KennyP ONLINE  

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Posted November 22, 2016 - 09:36 AM

I'll see about changing over to that valve this morning to check this. Takes a bit to change all the parts over for it. At wide open throttle and warmed up, the gauge is back up to about 300 on the single spool. May try that on it first.



#102 KennyP ONLINE  

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Posted November 22, 2016 - 01:12 PM

Here's a video I shot this morning after warming up the hydraulics.

 

Notice at the start ( wide open throttle) the gauge drops a bit, then comes back up. It was making a noise while doing this, hard to explain.

 

Headed into Tulsa to get new o-rings for the MF valve. (ducky got the part #'s for me) Hopefully some new ones for these single spools also.



#103 ducky OFFLINE  

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Posted November 22, 2016 - 02:20 PM

I sourced the orings you need. This will do a complete 2 spool Valve including the spool seals Pt# 206.

OMCO Valve Orings.jpg

OMCO Valve Parts Breakdown.jpg

 

Anybody want a set let me know.

$5.00 US free Shipping.

Can do Pay Pal.


Edited by ducky, November 22, 2016 - 02:25 PM.

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#104 KennyP ONLINE  

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Posted November 22, 2016 - 03:03 PM

Well, I went to town and got all but the metric seals. He said he had a box of them, but couldn't find them. Supposed to call when he gets some. Left the seal for the single-spool for him to match up and get those for me. They are a 'cup seal'. Didn't have those in stock either.



#105 KennyP ONLINE  

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Posted November 22, 2016 - 03:04 PM

I sourced the orings you need. This will do a complete 2 spool Valve including the spool seals Pt# 206.

attachicon.gifOMCO Valve Orings.jpg

attachicon.gifOMCO Valve Parts Breakdown.jpg

 

Anybody want a set let me know.

$5.00 US free Shipping.

Can do Pay Pal.

Folks, this valve is used on MF (Snapper) 1855's and Wheel Horse D-Series. Also a single spool on a Sears FF.


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