Power SSQA control, manual diverter valve? Or what other options?
- Thread starter Fallon
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jonsstihl
Veteran Member
Got my parts today, a few problems If anyone else is going to do this listen to Fallon and get the 6 inch stroke it will work and be easier to mount. problem
with the 8 inch stroke is that the eyes of the cylinder are too big. when the pins are latched the attachment point is too close to the side of the ssqa adapter to fit the cylinder end. I will have to modify the brackets to increase the stroke on the retracted side. my available stroke with the stock manual setup is 8 1/4 inches but It think there is more than that of interference.
Other problem that maybe Fallon hadn't thought of or atleast hadn't mentioned is the speed. at 9 GPM the pins will take .2 seconds to latch and .1 seconds to unlatch. Rather explosive. even at half the flow its still .4 and .2 seconds
I'm planning on use 1/4 inch hoses but I don't think that will be enough to slow things down. anyone have a source for restrictors with available ports being SAE 6 and JIC 6. what
anyone have an idea what the grand L40 series hydraulic flow is at idle.
with the 8 inch stroke is that the eyes of the cylinder are too big. when the pins are latched the attachment point is too close to the side of the ssqa adapter to fit the cylinder end. I will have to modify the brackets to increase the stroke on the retracted side. my available stroke with the stock manual setup is 8 1/4 inches but It think there is more than that of interference.
Other problem that maybe Fallon hadn't thought of or atleast hadn't mentioned is the speed. at 9 GPM the pins will take .2 seconds to latch and .1 seconds to unlatch. Rather explosive. even at half the flow its still .4 and .2 seconds
I'm planning on use 1/4 inch hoses but I don't think that will be enough to slow things down. anyone have a source for restrictors with available ports being SAE 6 and JIC 6. what
anyone have an idea what the grand L40 series hydraulic flow is at idle.
MtnViewRanch
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You need .030 orifice. What you need is exactly what I make for my 2" dia cylinders.
jonsstihl
Veteran Member
thanks for the info,
my cylinder is a 1 inch cylinder with a .625" rod. 8" stroke. I wanted to keep it small so there would be less clutter out there between the loader frame and bucket.
what kind of flow rate can I expect with a system pressure of 2600 psi and approx 9 GPM of flow
my cylinder is a 1 inch cylinder with a .625" rod. 8" stroke. I wanted to keep it small so there would be less clutter out there between the loader frame and bucket.
what kind of flow rate can I expect with a system pressure of 2600 psi and approx 9 GPM of flow
MtnViewRanch
Elite Member, Advertiser
- Joined
- Mar 19, 2005
- Messages
- 10,649
- Tractor
- Mahindra 7520, Mahindra 3215HST, Case 580 extendahoe, Case 310 dozer, Parsons trencher, Cat D6,
I'm not sure, but it sounds like you need even a smaller orifice. The .030 are hard enough to do, smaller,
good luck. jonsstihl
Veteran Member
.030" is one small drill bit. too bad the third function has no feather ability. It sure would come in handy.
I got my TnT from him. Has the built in restrictors, I'm guessing .030. Takes a few seconds, maybe 3 to extend or retract the toplink & is about right. I'd want my SSQA to operate a but faster as you don't need to feather it or get the precision you do on TnT cylinders.
All the 40 & 60 series Grand Ls have about the same flow rate, 10gpm give or take.
jonsstihl
Veteran Member
Thats the plan start small then move up if I need to. I can always do a flow control valve if it comes to that.
I am going to run some tests with my splitter tomorrow to estimate the flow rate at idle.
I am going to run some tests with my splitter tomorrow to estimate the flow rate at idle.
jonsstihl
Veteran Member
Just a quick update. my grand L4740 flows around 3.6 GPM at idle with cold (room temperature) hydraulic fluid.
and it is right around 9.4 GPM at 2500 RPM so I am a little less worried. .5 seconds extend and .3 seconds retract. with no restrictor.
thanks to the calculator on surplus centers website.
a few issues with fitting the cylinder on the attachment point but nothing a couple of washers can't fix.
I think I will be OK with the 8 inch stroke by grinding a little but off the handles so they retract a little more but it is going to be close. there is not much metal to grind off of the eye on the cylinder but i can compensate with the handles
anyone have any tips for welding on a cylinder rod. I will need to extend the cylinder by 12 1/4 inches will the chrome contaminate the weld. what do you use to protect the rod since I want to weld it with the rod extended all the way to protect the seals. I would use tape but I think the heat from the weld will make a mess of it.
and it is right around 9.4 GPM at 2500 RPM so I am a little less worried. .5 seconds extend and .3 seconds retract. with no restrictor.
thanks to the calculator on surplus centers website.
a few issues with fitting the cylinder on the attachment point but nothing a couple of washers can't fix.
I think I will be OK with the 8 inch stroke by grinding a little but off the handles so they retract a little more but it is going to be close. there is not much metal to grind off of the eye on the cylinder but i can compensate with the handles
anyone have any tips for welding on a cylinder rod. I will need to extend the cylinder by 12 1/4 inches will the chrome contaminate the weld. what do you use to protect the rod since I want to weld it with the rod extended all the way to protect the seals. I would use tape but I think the heat from the weld will make a mess of it.
