this work for hydro filter on 422/425?

[SpringHollow]

Hi JJ,

Do you have a link to the pump?

Do you have a link for your bypass filter?

Thanks,

Ken

 

[DieselPower]

If your thinking about installing a bypass filter why not install a real 1 micron, water absorbing bypass filter assembly? If your going to do it why not go all the way.

Something like this. Kleenoilusa.com - The Kleenoil Bypass Oil Filtration System

 

[johara1]

why not just plum one inline at the pto quick coupler on the return side? let the pump do the work. if your not running the mower just hook it up to the coupler turn the pto on let it work........jim

 

[KentT]

why not just plum one inline at the pto quick coupler on the return side? let the pump do the work. if your not running the mower just hook it up to the coupler turn the pto on let it work........jim

That's an interesting thought -- since the PTO pumps 8 gpm, it would circulate and filter the oil pretty quickly. If you did something like this, do you think it would be prudent to plumb it so that all the oil went through it when you were just filtering, but when you're using the PTO you could bypass the filter? It wouldn't need a real diverter valve -- just a shut-off valve in the main return line between the two T's that splice in the filter circuit. Then, you could shut off that valve, forcing the flow through the filter when you want to filter the oil. Otherwise, with the valve open, some small amount of oil might get filtered, but with the return open to the tank, you wouldn't be adding backpressure from the filter, in addition to what it takes to run the implement...

Note that this would require a high-pressure filtering system, if put in the PTO circuit without an implement on it...

 

[SpringHollow]

why not just plum one inline at the pto quick coupler on the return side? let the pump do the work. if your not running the mower just hook it up to the coupler turn the pto on let it work........jim

I mentioned this as a possibility but it has a couple of issues: First, you only filter when not using an implement. Second, you can not filter new oil or existing oil to clean it up before sending it through your pumps. Third, the tractor has to be running to use it (but then you do not need to run an external pump so you are getting free filtering when you do not need the PTO). Fourth, a 1 - 3 micron filter could clog quickly which means Fifth, the filter/housing must be able to withstand 3500 psi or more. Even if you put in a full flow and a bypass filter into the PTO circuit, since they can clog, it seems to me they need to be able to withstand full pump pressure or have a large port bypass that can handle 18 GPM. I think what I am saying is correct.

 

[KentT]

I mentioned this as a possibility but it has a couple of issues: First, you only filter when not using an implement. Second, you can not filter new oil or existing oil to clean it up before sending it through your pumps.

While I'd like to protect all the pumps, the one I'm really interested in protecting is the variable speed tram pump. It's far more expensive than the other two pumps combined...

If necessary I'd "sacrifice" the PTO pump to protect the tram pump...

Just stating my priorities -- I agree with your concerns about clogging and bypass...

 

[J_J]

If your thinking about installing a bypass filter why not install a real 1 micron, water absorbing bypass filter assembly? If your going to do it why not go all the way.

Something like this. Kleenoilusa.com - The Kleenoil Bypass Oil Filtration System

Can you give us the price of the unit. I am thinking that they are not cheap.

 

[J_J]

While I'd like to protect all the pumps, the one I'm really interested in protecting is the variable speed tram pump. It's far more expensive than the other two pumps combined...

If necessary I'd "sacrifice" the PTO pump to protect the tram pump...

Just stating my priorities -- I agree with your concerns about clogging and bypass...

If you were to put a 1 micron filter in the PTO circuit, I think that it would blowup, and put a lot of debris in your system.

Your tram pump oil is being filtered, at 10 microns, but only when the charge pump is replenishing any oil lost in the circuit. I don't think you could even add a bypass filter in the tram circuit, because of the pressure.

They do make 3000 psi filters, and you could put that in the PTO circuit, but I would suggest a filter housing with a gage. It is also in the $75.00 to $100.00 range. I don't think they make a 1 micron filter that will take 3000 psi.

I would think the best place to put a 1 micron filter, would be to tap into the output line of the oil cooler. The pressure should be low and you would be filtering some of the oil, at 2 or three quarts a minute.

 

[Bob999]

Can you give us the price of the unit. I am thinking that they are not cheap.

At the referenced site there is an economic analysis that suggests that the cost of the unit is $649.

 

[J_J]

why not just plum one inline at the pto quick coupler on the return side? let the pump do the work. if your not running the mower just hook it up to the coupler turn the pto on let it work........jim

Not a good idea, that filter would represent the total resistance to your 8 gal output. You are now trying to push 8 gal through a filter capable of handling about 3 quarts. Guess what. Boom