So I've bought a rear tyre carrier/winch bar for the 80. The kit arrives this week! So for something different I decided to go with a hydraulic winch instead of the usual electric. I chosen a Runva 12000lb model.
The winch needs:
11Mpa/1600psi of pressure
11.9G per min/45L per min of flow
for 17.1 ft per min/5.2m per min of line speed
The power steering pump has got no hope of keeping up so I'm looking at a dedicated clutch pump to run this and possibly later a front hydraulic winch. The mighty 1hz produces its maximium torque at 2,200 rpm so I think this will be a good point so shoot for.
I'll quite freely admit the most experience I've had with hydraulics is pressing the brake pedal in the Landcruiser, though I'm willing to learn....
The winch came with a 12v electric solenoid valve block and as far as I can tell it's either all on or all off (no half speed like when lowering the load on a forklift where you can change the rate of decent).
Is there a valve block avaliable that could do that? with a wired remote?
I understand the reservoir has to gravity feed the pump, but what about capacity? I've been told for 100% duty cycle you need to have 3 times the flow rate of the pump, but 135L of oil sounds excessive to me....
The next problem I've struck is sizing the clutch pump, i've found these Muncie clutch pumps here according to the flow chart I could use the PH5 model and be close on the money for flow at 2200rpm but what about the pressure?
any help would be appreciated