Help with ASVSR80 bogs down - hydraulic issue?

Thanks for all the posts. Here's where I'm at ... the mower is supposed to be correct flow rate for my machine on the low flow (I didn't want high flow). I definitely have the connections on the low flow connections. And since there's no case drain definitely wouldn't want to hook up to the high flow connections. And there's a lockout whereby you can't flip the highflow switch when are hooked up to the low flow. (or some such safety thing)
The mower works with the thumb hydraulic control but nothing with the continuous switch. I did try ramping up the rpm's and that does make it work well (turns fast as it's supposed to) but still only with the thumb roller.
So I took one of my other attachments and the continuous flow switch worked with that attachment ! So put the mower back on and still nothing with the continuous flow switch.
The only thing I can think is that the continuous flow switch has an intermittent issue. Can't think how the continuous flow doesn't run the mower but the thumb controller does. Tomorrow will be adding more hydraulic fluid just to make sure it's not low.
I'll write the manufacturer to see if they have any ideas. I am so very aggravated.
Oh and it truly is my understanding the mower will cut in both directions - one of the benefits of direct drive but I haven't tried it yet.

oh and furu, as mentioned in prior post the rotary mowers comes with a range for high flow or low flow. I don't have much more info on the mower than what shows under their spec page on the website. Nice people to talk to; we'll see how they act when I call with an issue
oh & on this machine the "rabbit" speed is only for traveling, not work.

Have you taken the low flow switch and checked it for proper function with a multi-meter? It might as you say just have an intermittent problem since it works with another implement. There is not an electrical connection to the rotary mower is there that you don't have with the other implement?

I dont' think there's any other electrical hookup on the mower and yes, I will check the switch with multi-meter - that's a good idea. I just can't think of anything else that could be an issue since it works with the thumb roller. Do you know how tired my thumb got ??? because geez I had to try out the mower

kckc said:

Do you know how tired my thumb got ??? because geez I had to try out the mower

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I can only imagine! You are one dedicated person. But the mower ran fine with the higher power setting, yes? Hopefully you don't get the thumb equivalent of trigger finger.
To me the issue is confused by the other attachment working fine on low flow with the switch. What is that other attachment and how long did it run on continuous low flow?

I recently had an idle validation switch issue on mine in which it threw an error code at 1255 rpm every time I accelerated the engine after normal warmup. Trouble shooting pointed at the electronic throttle control module ($300) and the wiring from the throttle to the ECM. If I did not let the engine warm up but just went to full throttle no problem. Of course who want to do that on a regular basis. Long story short after a very frustrating troubleshooting and finding nothing I ran it to full throttle cold and left it there for one hour generating heat. Since then no problem no matter what I try to duplicate the original issue. Must have been some moisture somewhere that got cooked out with the heat. The electrical systems on these things can be tricky.

yes mower seemed to do fine with the rpm's ramped up - I didn't enjoy trying to learn how to control my travel speed with the rpms ramped up but well, guess that's just something new to learn.
I really didn't let the continuous flow go too long on the other attachment - it's a grapple and once it came on and stayed on for probably 20 seconds I shut it off. Then I tried it again and it worked again. Guess that's something new to try too. Thanks for the suggestion.
Talked to the mfg - they have no idea what it could be so apparently all on me and my machine. Just getting someone to check the switch and system is going to be a real PITA.
Know any mobile mechanics in NC... *sigh*

I am confused.
Why did you hook a grapple up to the continuous flow?
That is one implement that the thumb switch is great on. I would actually be concerned to hook the grapple up to continuous as it would try to push fluid even with the actuators at max retract or max extend and would result in an overheat and pressure bypass relief at actuator limits. Maybe your grapple is different in design than any that I am used to.
I would almost suspect a pressure relief valve except the cutter runs fine with the thumb switch held continuously.

furu said:

I am confused.
Why did you hook a grapple up to the continuous flow?
That is one implement that the thumb switch is great on. I would actually be concerned to hook the grapple up to continuous as it would try to push fluid even with the actuators at max retract or max extend and would result in an overheat and pressure bypass relief at actuator limits. Maybe your grapple is different in design than any that I am used to.
I would almost suspect a pressure relief valve except the cutter runs fine with the thumb switch held continuously.

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furu said:

I am confused.
Why did you hook a grapple up to the continuous flow?
That is one implement that the thumb switch is great on. I would actually be concerned to hook the grapple up to continuous as it would try to push fluid even with the actuators at max retract or max extend and would result in an overheat and pressure bypass relief at actuator limits. Maybe your grapple is different in design than any that I am used to.
I would almost suspect a pressure relief valve except the cutter runs fine with the thumb switch held continuously.

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Because he had it, because the couplers connected up, and because it allowed him to test the operation of the continuous flow switch in a way that demonstrated actual oil flow.

lantraxco said:

Because he had it, because the couplers connected up, and because it allowed him to test the operation of the continuous flow switch in a way that demonstrated actual oil flow.

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Ok

yes furu - thanks. I didn't know how else to test the flow. But I appreciate the info that I shouldn't use that continuous flow on the grapples - never have used that with the grapple before.

I don't know if this would be possible, but maybe the hydraulic hoses attached on the mower side are reversed.

You do know that the continuous switch has three positions. Have you tried both directions on the switch?

seville009 said:

I don't know if this would be possible, but maybe the hydraulic hoses attached on the mower side are reversed.

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Hey, sorry for the delay in qetting back to you - the mower seems to work with the thumb roller so I don't see how it can be the hoses??? I'm trying to find someone to look at my switch (although it worked with another piece of equipment). Ugh....

f311fr1 said:

You do know that the continuous switch has three positions. Have you tried both directions on the switch?

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Yes, two and neutral ...

I wonder if I could put my auger on the machine and try the continuous flow switch? It worked with the grapple but I couldn't leave it on long (because it's a grapple and I didn't want to blow up anything). Any thoughts?

Give it a try with the post hole auger with continuous flow.

If your auger is either a grain auger or a post hole auger that would be a very good piece of equipment to try it on.
That has a motor that is designed for continuous or at least semi-continuous flow unlike the hydraulic cylinders on the grapple. You should have no issue at all on running it with continuous flow.