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If you are keeping the original manifold, you don’t need anything, in fact you only need a single acting pump with a pressure relief, a check valve and a return port to replace the AOP. Now if you are getting rid of the manifold valve you will need a valve assembly or combination of valves to...

Well it was sure nice of them to fill in all the performance data... Looks like Stone became SPX and that model info is not listed on their website... Since the pump is inside the reservoir there is probably no pump displacement info easily available either without removing the can. The...

24 is a better way to do this... How long does it take to tilt your cab?

The voltage regulator doesn't know load or load sharing, it only knows output voltage. it will use full field excitation/full output to try and maintin that voltage. The batteries can supply current at reduced voltage, but the alt will bust itself trying to make rated voltage. When the voltage...

Many single acting units actually have a return port, it is just capped/plugged. Got pics Or model number? the good thing about the single acting units is they have a check valve on their output. Whatever you put on there has to have a check valve on the output for the hand pump to continue to...

Yep, that would happen on a large pump without restriction.

There are restricted orifices in the control valve to keep the flow from exceeding the cylinder lockout limits. You should only need to add flow restriction if you changed the control valve...

Are you able to time how long it takes? how much flow your electric pump can actually push thru the system is a real important piece of info... an even better data point would be to time a cab lift with your larger pump relief set to say 1500 PSI...:)

I figured out an easy way to fit a pressure gauge today so I took some video which I will upload once I get it edited. I saw about 1400 on mine to lift the cab and about 2100 to lift the spare off the ground. You need something that delivers about 0.5 GPM or less @1500 PSI for a 20-25 second...

I did some math a while back. The 34-2 manual says the cab minus windshield, rear windows and inst & fuse panels, steering column and steps/fenders weighs 1400 pounds. With those items installed I am estimating a complete stock cab weight around 1600#? Based on the lift/balance point shown...

The safety checks are shown on the schematic diagrams for the cab and tire crane cylinders. One of the things that help mitigate excessive flow are the small hoses, fittings and the valve block itself which has restricted orifices on crane and cab circuits. I have heard of some replacing with...

Sorry, you are loosing me... My AOP reservoir is 10” X 5” X 4” or 200 cu/in. If a part of it wasn't filled with pump, it could only hold 0.86 gallon total... All 4 cylinders hold .54 gal when fully extended. When fully retracted the rod takes up 0.14 gal so the total volume for all 4...

Don't know where y0u are getting gallons from... From the -10 operators manual: “Air/hydraulic power unit..................................................................................3 pt (1.4 L)”