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what oil to use in Loader and trans on 917-25191


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#1 sandhopper2 OFFLINE  

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Posted January 01, 2016 - 11:27 PM

I have just bought a 18/6 twin 91725191 with loader I need to go through all the normal changes belts and fluids What is used for the trans and for the loader Thanks I have found a lot of stuff here Larry (sandhopper2)


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#2 KennyP ONLINE  

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Posted January 02, 2016 - 05:36 AM

:wave: Welcome to the forum, Larry. The manual calls for 30W motor oil in the trans, not sure for the loader.


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#3 skyrydr2 OFFLINE  

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Posted January 02, 2016 - 05:55 AM

That Tractor came with a hydro?? I thought they were all 6 speed manual shift? What does it have for a loader? Is it a Johnson? Or something else? I would think any good general purpose hydraulic oil would work.
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#4 KennyP ONLINE  

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Posted January 02, 2016 - 06:12 AM

According to the manual for that model #, it is a 6-speed.


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#5 Tecumseh power OFFLINE  

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Posted January 02, 2016 - 06:23 AM

Kenny I was also under the impression the 18/6 is a six speed that takes 30w oil if it was a hydro it should say gt18 hydro on the side. Maybe when he bought it he was told wrong?.. especially with that model #. Would be nice to have that loader though!!!
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#6 toppop52 ONLINE  

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Posted January 02, 2016 - 11:34 AM

Who knows on the transmission, I bought an AYP Wizard, same as Craftsman, Rally and a bunch of others,  with a 5 speed. I swapped in a Hydro from a GT 5000, simple bolt in swap with very few mods.



#7 MNGB ONLINE  

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Posted January 02, 2016 - 01:41 PM

Hi snadhopper2 welcome to the group your tractor sound like it should be a good handy machine but :picsoritsnotyours:

:welcometogttalk:



#8 sandhopper2 OFFLINE  

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Posted January 02, 2016 - 08:19 PM

Yes this tractor is not hydro it is truly a 6 speed , 3 speeds and HI LOW The number on the loader seems to be 100 28280 not to sure on the 8's could be something else Is there a way to drain it all out ?

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#9 MH81 ONLINE  

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Posted January 02, 2016 - 11:55 PM

The manual says 30wt for the rear end, but unless you're in very cold environments I would suggest going with 80w-90.
I have done this to all mine. The EP lube seems to quiet the tranny and counter some of the last 40 years of wear.

The loader, I went with 20w hydraulic fluid.

Your results may vary, research before deciding.

BTW, there are a couple of modifications I would advise you investigate
The front axel is something I would look into upgrading. Once you've done that, you'll need to find a way to increase your rear ballast. Wheel weights are a start, the discs will help some, you might want to look into loading the tires if they aren't or finding other gravity enhancers
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#10 KennyP ONLINE  

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Posted January 03, 2016 - 06:22 AM

Yes this tractor is not hydro it is truly a 6 speed , 3 speeds and HI LOW The number on the loader seems to be 100 28280 not to sure on the 8's could be something else Is there a way to drain it all out ?

Any possibility that loader model # could be 100.26230? Kwik-Way made one for Sears in 1975 with that #. I'll upload the manual later today. It called for a good hydraulic oil.


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#11 MH81 ONLINE  

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Posted January 03, 2016 - 08:15 AM

Any possibility that loader model # could be 100.26230? Kwik-Way made one for Sears in 1975 with that #. I'll upload the manual later today. It called for a good hydraulic oil.


Kenny, I'm almost sure that's what it is.
Draining out? Not an easy task, I'm afraid

There is a way I've been considering, but it'll take some oil. And make a mess, possibly.
The lower hose on the upright is the pickup for the pump. If you build a substitute reservoir and attach the hose to it, then lift the loader all the way up and dump the bucket, you'll purge new oil thru and dump the old back into the old reservoir (where it'll run out of the hole where the hose was.)
If you're really going to purge, actuate the loader both directions, but it'll double the oil usage.

The only oil that wont get changed is the oil in the lines and hoses.

BTW, i was thinking I'd do this without the engine running and drive the pump with a drill.


I suppose the best way would be to disconnect the hoses, manually move the cylendars until empty and drain the hoses and flush the reservoir.
Then you'd have to purge the air from the system. I believe there is a procedure in the manual?
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#12 sandhopper2 OFFLINE  

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Posted January 03, 2016 - 10:01 AM

Thanks guy's I will try and get this manual latter today after church I saw somewhere that a guy added a filter in line for the fluid , but can't find it now What filter would I use and where do I get this NAPA ?

#13 MH81 ONLINE  

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Posted January 03, 2016 - 10:13 AM

Thanks guy's I will try and get this manual latter today after church
I saw somewhere that a guy added a filter in line for the fluid , but can't find it now
What filter would I use and where do I get this NAPA ?

That would be a good place to go, but determine where the filter will be first.
If in the return line, it'll be under some pressure, if in the pump feed hose, under suction.
Filters aren't interchangeable in this regard.

#14 sandhopper2 OFFLINE  

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Posted January 04, 2016 - 08:27 PM

I change the Fluid in the FEL , it was red so I assume it was trans fluid I was able to add about 5qts , very slowly . Now when I put the plug back in a cycle the lift Fluid comes out the plug . My plug has a hole drilled into it , I don't think that is correct. Should this system be sealed ? If so what would happen to the fluid that came out ? The Fluid tank does not have a plug to show the fill level , The manual 100.26230 does not show a fill level , and it states the unit should hold 8 qts total . I know I did not drain that much out

#15 MH81 ONLINE  

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Posted January 04, 2016 - 08:30 PM

That's the breather and it HAS to be there.

I will draw a pic of my solution in a minute.

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