Removing The Knob And Rotor On A Vent Valve - Getinge Arjohuntleigh NIMBUS II Service Manual

Mattress Repair
36

Removing the Knob and Rotor on a Vent Valve

There are 16 vent valves in the mattress, and the body of each vent valve is secured to the manifold
assembly during the manufacture of the mattress, and can not be removed in the field. The following two
procedures describe how to remove just the knob and internal rotor from the body of a vent valve:
• In the first procedure, the cell is removed from the vent valve first so that the end of the internal
rotor is visible. This is a longer procedure, but the removal of the knob and rotor is easier.
• In the second procedure, the cell is left connected to the vent valve throughout the procedure. This
is a shorter procedure, but the removal of the knob and rotor can be quite difficult.
Fork
36.1 Removing the Knob and Rotor by removing the Cell from the Vent Valve.
36.1.1 Remove the top cover.
36.1.2 On the cell attached to the relevant vent valve, pull apart the pop stud which secures
the top of the cell to the manifold.
36.1.3 To disconnect the cell from the vent valve body, carry out the following procedure
(Refer to Figure 78):
36.1.3.1
36.1.3.2
36.1.3.3
Figure 78 - Removing the Cell from the Body of a Vent Valve
Chap 4
Page 48
Rotor
Figure 77 - Vent Valve - Knob and Internal Rotor
Hold the vent valve body and manifold assembly with one hand.
Grip the end of the cell with the other hand.
Give a quick, firm pull to remove the grommet on the cell from the vent valve
body.
Cell
SER0001
Nimbus/DFS Service Manual
Knob
Manifold Assembly
Vent Valve Body
Issue 2
April 2010