Quick instructions for the SCV and quick couplers.
Top coupler to "rod" end of cylinder
Bottom coupler to "head/piston" end of cylinder
Move lever in cab forward to retract cylinder, all the way forward for "float"
Move lever in cab rearward to extend cylinder
The SCVs at the rear of the tractor are numbered 2-1-3-4 (for cab levers)
The small knob (rabbit/turtle) controls flow speed
The large knob: when set to the picture of two gears, the cab lever will "detent" in forward or rearward position, until manually moved back to neutral/center position. Used for hydraulic motors.
The picture of cylinder setting, the cab lever spring returns to neutral/center when the lever is released. used for hydraulic cylinders.