Chinese Mini Excavator Cushion Valve Theory, installation, and setting instructions
Жүктеу.....
Пікірлер: 26
@jwjeepx29 күн бұрын
This is the way to do it - no music, no gabbing - just the facts presented clearly. Nice job!
@ty214829 күн бұрын
Well I should have waited about 8 hours. Put mine on this morning before it got hot (shop currently full of junk that won't move). Fairly easy connecting hoses. I did the opposite on the pressure setting and turned the screws out until they had no spring pressure then turned in three turns. After probably 30 minutes of fiddling found about 1 1/4 turns in was about perfect. The machine still stops turning when the stick is released but not the instant hard stop. The bucket probably travels an extra 20 inches after the stick is quickly released.
@davidbroome643728 күн бұрын
I just put mine on youtop 15 and it fixed the crazy swing . I still need 2 90 degree male to female to make a better fit . 3 full turns out . Went to try and broke wires walking it , then a fuel pump motor. Worth the money get one before they sell out . David from idaho worked get testing before it broke .
@aaronpasteris781629 күн бұрын
Easier way to explain the issue is basic physics F = M*A Force = Mass x Acceleration When you start moving the cab, the acceleration is limited by the force (hydraulic pressure from the pump) That force then stores energy in the inertia of the cab (mass) rotating. When you release the controls, all of that energy stored has to go somewhere - a quick stop means a high acceleration which causes a large pressure spike in the now closed off hydraulics. A cushion valve acts to bypass and limit that peak pressure to a safe level, cushioning the movement from an abrupt stop to a controlled slowdown.
@aaronsadventures12328 күн бұрын
Awesome video I’ve watched all your videos and I am planning to buy the oil cooler for my H15. You should make a video explaining how the flow control valves work that would be awesome I am going to purchase some of those as well.
@artur840329 күн бұрын
On normal valve blocks there is option of port overpressure valve. It's internal and compact. Could be standard. I've seen larger ones have overpressure valve on cylinders and third thin hose goes to tank. Can have overpressure valve in multiple places
@geolt317 күн бұрын
I have a 3000lb mini-ex with 24HP and joystick controls that has a lot of boom-bounce build-up due to the powerful engine, light body and springy joysticks. In your opinion, what would be the best tactic to reduce this; 1. Cushion valve on the boom cylinder, 2. Better electronic adjustable joysticks, More counter-weight, Something else?
@carlkinsel667629 күн бұрын
It has the pilot controls
@Steven-h3325 күн бұрын
I deathly see where you're coming from deathly like the product only concern I would have you're pushing on it by hand so max you're pushing like 200 lb so what happens if you have a root rake or a grapple attachment on and you're holding like a decent-sized log on a hill would spin until it faces down the hill thus for relieving the sideload
@avdulpula828523 күн бұрын
have you already sold out on these? website says sold out. I missed my chance.
@griz517828 күн бұрын
how much
@CSM_Tank29 күн бұрын
You now have 12 left!
@carlos-oz2go29 күн бұрын
Could you not protect the system with small air chambers on each side to absorb the pressure spikes?
@thegarageconnection
29 күн бұрын
You could put accumulators on each side, but they would not be able to vent the pressure, only somewhat dampen it
@ryanmacpherson907828 күн бұрын
Will the boom drift after you let go of the control?
@thegarageconnection
28 күн бұрын
No
@richardolsen237926 күн бұрын
Do you adjust engine off or on?
@thegarageconnection
26 күн бұрын
You can adjust engine off
@richardolsen2379
26 күн бұрын
@@thegarageconnection thanks! I did 6 turns (engine off) and it seems to work well.
@davidbroome643729 күн бұрын
David from idaho , is the h15 and you top15 same machine
@thegarageconnection
29 күн бұрын
They’re broadly similar
@carlkinsel667629 күн бұрын
will it fit a DM12X-C
@thegarageconnection
29 күн бұрын
It should
@briannettles78629 күн бұрын
Will this fit a qh12
@thegarageconnection
29 күн бұрын
Yes
@memykidsandi
29 күн бұрын
Hi, what's the price for it shipped to Nova Scotia Canada?
Пікірлер: 26
This is the way to do it - no music, no gabbing - just the facts presented clearly. Nice job!
Well I should have waited about 8 hours. Put mine on this morning before it got hot (shop currently full of junk that won't move). Fairly easy connecting hoses. I did the opposite on the pressure setting and turned the screws out until they had no spring pressure then turned in three turns. After probably 30 minutes of fiddling found about 1 1/4 turns in was about perfect. The machine still stops turning when the stick is released but not the instant hard stop. The bucket probably travels an extra 20 inches after the stick is quickly released.
I just put mine on youtop 15 and it fixed the crazy swing . I still need 2 90 degree male to female to make a better fit . 3 full turns out . Went to try and broke wires walking it , then a fuel pump motor. Worth the money get one before they sell out . David from idaho worked get testing before it broke .
Easier way to explain the issue is basic physics F = M*A Force = Mass x Acceleration When you start moving the cab, the acceleration is limited by the force (hydraulic pressure from the pump) That force then stores energy in the inertia of the cab (mass) rotating. When you release the controls, all of that energy stored has to go somewhere - a quick stop means a high acceleration which causes a large pressure spike in the now closed off hydraulics. A cushion valve acts to bypass and limit that peak pressure to a safe level, cushioning the movement from an abrupt stop to a controlled slowdown.
Awesome video I’ve watched all your videos and I am planning to buy the oil cooler for my H15. You should make a video explaining how the flow control valves work that would be awesome I am going to purchase some of those as well.
On normal valve blocks there is option of port overpressure valve. It's internal and compact. Could be standard. I've seen larger ones have overpressure valve on cylinders and third thin hose goes to tank. Can have overpressure valve in multiple places
I have a 3000lb mini-ex with 24HP and joystick controls that has a lot of boom-bounce build-up due to the powerful engine, light body and springy joysticks. In your opinion, what would be the best tactic to reduce this; 1. Cushion valve on the boom cylinder, 2. Better electronic adjustable joysticks, More counter-weight, Something else?
It has the pilot controls
I deathly see where you're coming from deathly like the product only concern I would have you're pushing on it by hand so max you're pushing like 200 lb so what happens if you have a root rake or a grapple attachment on and you're holding like a decent-sized log on a hill would spin until it faces down the hill thus for relieving the sideload
have you already sold out on these? website says sold out. I missed my chance.
how much
You now have 12 left!
Could you not protect the system with small air chambers on each side to absorb the pressure spikes?
@thegarageconnection
29 күн бұрын
You could put accumulators on each side, but they would not be able to vent the pressure, only somewhat dampen it
Will the boom drift after you let go of the control?
@thegarageconnection
28 күн бұрын
No
Do you adjust engine off or on?
@thegarageconnection
26 күн бұрын
You can adjust engine off
@richardolsen2379
26 күн бұрын
@@thegarageconnection thanks! I did 6 turns (engine off) and it seems to work well.
David from idaho , is the h15 and you top15 same machine
@thegarageconnection
29 күн бұрын
They’re broadly similar
will it fit a DM12X-C
@thegarageconnection
29 күн бұрын
It should
Will this fit a qh12
@thegarageconnection
29 күн бұрын
Yes
@memykidsandi
29 күн бұрын
Hi, what's the price for it shipped to Nova Scotia Canada?