High Flow vs. Normal Flow

[BPS]

I am going to an auction tomorrow where they have to S185's. One is high flow. I anticipate doing some stump grinding (maybe 50 stumps/week). Since that is not a lot, is the high flow worth it? Also, if the high flow IS worth it, how does that effect other attachments like augers, breakers and landscape rakes? Will the high flow damage these small pieces / can it be regulated / or do you have to upgrade these attachments? Thank you for your input, and hope to be the owner of a new or used S185 this week!

 

[Tazza]

Hi Flow is done so you can enable and disable it. When you are using the machine *normally* hi flow is not enabled, you press a button down to enable it. I think it re-sets every time you shut down too, so you can't accidental leave it on.
For stump grinding it would be an asset, depending on the price.

 

[BPS]

Hi Flow is done so you can enable and disable it. When you are using the machine *normally* hi flow is not enabled, you press a button down to enable it. I think it re-sets every time you shut down too, so you can't accidental leave it on.
For stump grinding it would be an asset, depending on the price.

Thanks, I think that was the answer I was looking for. I have never operated a high flow machine, but I have heard it is great for stump grinding on a regular basis. I didn't know they had a "high flow / regular flow selector switch". I was under the impression that if you had high flow, it was always on....

 

[skidsteer.ca]

Thanks, I think that was the answer I was looking for. I have never operated a high flow machine, but I have heard it is great for stump grinding on a regular basis. I didn't know they had a "high flow / regular flow selector switch". I was under the impression that if you had high flow, it was always on....

Hi flow is definitely switchable. If you search online for for "hydraulic hp formula" you will get an equazion you can plug the figures into. 16.9 gpm @ 3000 psi is about 27 hp that you can put to you attachment on a standard flow 773, s185.
You'd have to do the math to see how much hp you'd gain with various hi flow machines. I would think they would be up in the 40 hp range.
Also pressure is vary important here too, not just gpm (flow), as the pressure is what produces the steady torque that attemps to maintain the rpm of something like a stump grinder.
Ken

 

[Bandit1047]

Hi flow is definitely switchable. If you search online for for "hydraulic hp formula" you will get an equazion you can plug the figures into. 16.9 gpm @ 3000 psi is about 27 hp that you can put to you attachment on a standard flow 773, s185.
You'd have to do the math to see how much hp you'd gain with various hi flow machines. I would think they would be up in the 40 hp range.
Also pressure is vary important here too, not just gpm (flow), as the pressure is what produces the steady torque that attemps to maintain the rpm of something like a stump grinder.
Ken

My Mustang has both High-flow and low flow hydraulics. The Low-flow is variable from 0-25 GPM and the high flow is set at 41 GPM depending on the engine RPM. This is very usefull when I run my Hot saw feller buncher. The high flow runs the saw at 3400 RPM and the low-flow operates the grab arm that holds the tree up against the unit for transport. I would be most concerned how they used the machine. If the high flow was used running a concrete saw or road planer scarfing asphalt 10 hours a day, I would want to know that. I would get to the Auction on the inspection day and run it through it's paces. Joe

 

[Tazza]

My Mustang has both High-flow and low flow hydraulics. The Low-flow is variable from 0-25 GPM and the high flow is set at 41 GPM depending on the engine RPM. This is very usefull when I run my Hot saw feller buncher. The high flow runs the saw at 3400 RPM and the low-flow operates the grab arm that holds the tree up against the unit for transport. I would be most concerned how they used the machine. If the high flow was used running a concrete saw or road planer scarfing asphalt 10 hours a day, I would want to know that. I would get to the Auction on the inspection day and run it through it's paces. Joe

41 GPM!!! O_O Thats some serious flow there.
Very interesting that your standard flow is variable, is that done by push button? or simply with a lever?

 

[Bandit1047]

41 GPM!!! O_O Thats some serious flow there.
Very interesting that your standard flow is variable, is that done by push button? or simply with a lever?

You control the low flow with a metering valve that you turn in restricting flow or out to open the valve. This is a great feature especially when you are running engine RPM high for the high-flow but don't want the low-flow slamming the grab arm on the feller buncher. It also allows you to control the speed of cylinders and augers. Yes the 41 GPM is great when running a brush mulcher, the recovery time is quicker. Joe

 

[siduramaxde]

You control the low flow with a metering valve that you turn in restricting flow or out to open the valve. This is a great feature especially when you are running engine RPM high for the high-flow but don't want the low-flow slamming the grab arm on the feller buncher. It also allows you to control the speed of cylinders and augers. Yes the 41 GPM is great when running a brush mulcher, the recovery time is quicker. Joe

My T200 has variable flow. It's controled by the little thumb switch.

 

[bushinspector]

Hi Flow is done so you can enable and disable it. When you are using the machine *normally* hi flow is not enabled, you press a button down to enable it. I think it re-sets every time you shut down too, so you can't accidental leave it on.
For stump grinding it would be an asset, depending on the price.

Just was wondering how the auction went and if you are grinding with it. As I am typing this it sounds like a tornado is hitting Edmond. I may have been a little slow in getting my skid steer!!!!