B-cylinder (sterile air)
a) Remove the cylinder, see 1.2.1-1 AP valve - remove cylinders.
b) Fully release the tool.
c) Change the O-ring (1).
d) Remove the valve cone (2) and change the seal ring (3).
e) Remove the washer (4) and change the O-ring (5).
f) Reassemble in the reverse order.
Note! Tighten the valve cone (2) with a torque wrench set to 50 ±2 Nm