OP
Mechanos
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North of KC
Odd valve on log splitter
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J_J
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- Power-Trac 1445, KUBOTA B-9200HST
I believe you already have about 7.2 GPM and that should work a regular log splitter plenty fast.
If you use the LSR-3060, it may build up more heat than you want.
If you use the LSR-3060, it may build up more heat than you want.
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OP
Mechanos
Veteran Member
If I understand it correctly.... I have a 7.2GPM implement pump, but the hydraulic schematic shows that it runs through a 70%/30% flow divider sending 30% of the flow to the steering circuit and then onto the PTO clutch. So, if my line of reasoning is correct, I would have 5GPM running through the rear auxililary circuit. Of course those flow numbers are at full engine speed. I don't intend to run the engine at full speed while using the splitter.
Am I way off base here???
Am I way off base here???
J_J
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- Power-Trac 1445, KUBOTA B-9200HST
You could run the engine at a lower rpm and obtain the 4 GPM flow for the LSR valve.
OP
Mechanos
Veteran Member
I got a call into Prince for techincal info on the LSR-3060. The available info for this valve is less than stellar and there are a couple of questions that I have that need clearing up.
J_J
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What did you find out that was negative about the valve, other than it was designed for low GPM.
Most people that have used it are satisfied so far. Perhaps there are problems that we don't know about.
Most people that have used it are satisfied so far. Perhaps there are problems that we don't know about.
OP
Mechanos
Veteran Member
Just wanted to clear up the flow rate issue and find out for sure just what this valve can handle. The other issue... my current (broken) valve has 3/4" inlet/outlet ports and 1/2" work ports. The LSR-3060-3 is only offered with 1/2" inlet/outlet ports and 3/4" work ports. That would take some extra fittings and such to get my current hoses to fit up with the 3060. Maybe the extra expense of a few fittings is worth it in the long run to have the rapid extend.
According to Prince... 4 GPM is pretty much the max flow rate they recommend putting through the valve. This is due to the regen circuit used for rapid extend. The ports on this valve are pretty much the same as the LS-3000 series valve and can handle about 25GPM. Since the regen ratio is about 6:1, 4GPM would yeild about 24GPM on the regen circuit. Anymore flow than that would just build heat and make a lot of noise. The valve would function just fine with higher input flow rates as long as you don't use the rapid extend regen curcuit.
OP
Mechanos
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Just to be clear... I was saying the info available for the valve was less than stellar... not that the valve was less than stellar.
J_J
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- Power-Trac 1445, KUBOTA B-9200HST
The heat build up thing was the only limiting factor that I saw that would limit the valve, and the valve should only be used with single stage hyd pumps.
The comparison with using a two stage log splitter pump with regular valve, and a single stage pump and the LSR valve, the cycle times are about the same.
It is only about $30 more than the lowest price log splitter valve.
The main fact is that it saves a little time for those that want to save time.
The comparison with using a two stage log splitter pump with regular valve, and a single stage pump and the LSR valve, the cycle times are about the same.
It is only about $30 more than the lowest price log splitter valve.
The main fact is that it saves a little time for those that want to save time.
OP
Mechanos
Veteran Member
Yeah... I'm still waffling back and forth about which valve to get. On one hand, the LSR would be nice in my current configuration using my tractor's hydraulics.
On the other hand, I would really like to have a stand alone unit. I have a 5hp side-shaft engine and a tank already and would just need to purchase a pump. If I buy a pump, it would be a two-stage pump. The LSR is not the right choice for that setup. Now, it could be used as long as the operator understood the system and did not try to engage the rapid extend regen position.
So, if I plan to make the conversion in the future, I'm leaning toward just buying a standard valve.
Decisions.... decisions....
On the other hand, I would really like to have a stand alone unit. I have a 5hp side-shaft engine and a tank already and would just need to purchase a pump. If I buy a pump, it would be a two-stage pump. The LSR is not the right choice for that setup. Now, it could be used as long as the operator understood the system and did not try to engage the rapid extend regen position.
So, if I plan to make the conversion in the future, I'm leaning toward just buying a standard valve.
Decisions.... decisions....