VR. Non return valve Screw 1: Pressure relief valve adjustment (maximum pressure)
VA. Starting valve Screw 2: Upwards acceleration adjustment.
VD. Bypass valve Screw 3: Upwards/downwards deceleration adjustment.
VC. Flow regulator valve Screw 4: Levelling speed adjustment.
VB. Descent valve Screw 5: Down speed adjustment.
YR. Electrovalve for changing speed Screw 6: Hand pump relief valve adjustment.
YD. Descent Electrovalve Screw 7: Cylinder minimum pressure adjustment.
YS. Y- Δ Starting Electrov. (YS-A3 2014/33/EU) Integrated Soft-Stop SVC: YS-A3 Valve magnetic Sensor.
VP. Balancing down pressure switch SVD: Descent Valve YD magnetic Sensor
VL. Pressure relief valve
CP. Maximum pressure switch (optional)
VM. Manual descent valve
VG. Valve to control the minimum pressure in cylinder
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