It's a little gem

[bertsmobile1]

Toro recommend using a premium hydraulic oil; such as Mobil DT 26 in Eatons trannys
Eatons are worth the extra cost & effort of using a genuine hydraulic oil
They also specify it must be filtered to 5 µm

If you use engine oil then full synthetic is worth the extra price but note the minimum viscosity is SAE 20
Hydraulic oils like gearbox oils are measured on a different scale to engine oils
I think I used Shell agtrans 80 in the boxes I do because I have 50 litres of it

But I checked with Shell first

And Eatons get purged differently
They should self purge the air
The recommendation is to raise the wheel off the ground
Start engine & run at the slowest possible speed for 5 minutes
Then work the F-R pedal a few times
Turn the engine off & leave it 15 to 30 minutes
Adjust the oil level if needed
Check for drive
If it is spongy repeat the above .

 

[WadeGJ]

Toro recommend using a premium hydraulic oil; such as Mobil DT 26 in Eatons trannys
Eatons are worth the extra cost & effort of using a genuine hydraulic oil
They also specify it must be filtered to 5 µm
View attachment 63649
If you use engine oil then full synthetic is worth the extra price but note the minimum viscosity is SAE 20
Hydraulic oils like gearbox oils are measured on a different scale to engine oils
I think I used Shell agtrans 80 in the boxes I do because I have 50 litres of it

But I checked with Shell first

And Eatons get purged differently
They should self purge the air
The recommendation is to raise the wheel off the ground
Start engine & run at the slowest possible speed for 5 minutes
Then work the F-R pedal a few times
Turn the engine off & leave it 15 to 30 minutes
Adjust the oil level if needed
Check for drive
If it is spongy repeat the above .

Thank you... Closer investigation reveals that it has no filter in reservoir holding the trans oil.. off we go shopping again.. cheers

 

[WadeGJ]

Can anybody assist with a sizing/shape etc for the filter that sits in the hydro reservoir? I'm getting a lot of no ideas!

 

[bertsmobile1]

There will be no filter in the overflow reservoir
A filter of that mesh size needs a pump to push the oil through
The filter is either an external spin on or an internal one
Do you have the Eatons repair manual & parts book ?

 

[WadeGJ]

There will be no filter in the overflow reservoir
A filter of that mesh size needs a pump to push the oil through
The filter is either an external spin on or an internal one
Do you have the Eatons repair manual & parts book ?

I only have the Bolens online instruction/ service book. I think from codes and model numbers it's an Eaton 750 by the type of fan placement. Internal? I'm thinking what may have been there, but not ever seen it originally, I'm lost..If you are confident its normal, I'll happy proceed with the fluid replacement. Trying to get Shell agtrans 80 or Mobil DT26 in smaller quantities. Thanks again

 

[bertsmobile1]

I only have the Bolens online instruction/ service book. I think from codes and model numbers it's an Eaton 750 by the type of fan placement. Internal? I'm thinking what may have been there, but not ever seen it originally, I'm lost..If you are confident its normal, I'll happy proceed with the fluid replacement. Trying to get Shell agtrans 80 or Mobil DT26 in smaller quantities. Thanks again

I pulled he Eatons 750-780 service manual & pars breakdown off he Toro web page.
Toro have all of their manuals here
You can search "Toro -Eatons 750" and that should find what you want
Or ask on a new thread "What model Toro used an Eatons 750 transmission"
There are several dealers who can access old Toro specs and pull up a Toro model number
Then drop that into he Toro Service - manuals section to find the manual

 

[WadeGJ]

Thank you. A wealth of information..

 

[WadeGJ]

Found It Thank you. It appears that the exploded diagrams show now filters either internally or in-line.. Thank you so much for your assistance. Cheers.

 

[bertsmobile1]

My parts breakdown shows either a vent or an adapter for overflow so obviously optional fitting