Spacelabs BleaseSirius - Bellows Base;Canister; Pop-Off Valve; Figure 11 - Pop-Off Valve

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3.4 Bellows Base/Canister
1. Remove the bellows cover (bayonet fi tting), then replace the
bellows base/canister ‘O’ Ring.
2. Remove the bellows by gently pulling the lower convolution of the
retaining ring.
3. Remove the pop-off valve.
4. Replace the bellows base pop-off valve “O” ring.
3.5 Pop-off Valve
Figure 11 - Pop-off Valve
1. Replace Pop-off valve in bellows base.
2. Refi t bellows by gently pulling the lower convolution over the ring
in the bellows base.
3. Replace the bellows outer cover.
Planned Maintenance