Plus and PSS Series - Lung Demand Valve
tm 1285.001 - August 2001
5:5
4 Fold rubber cover back over the front of the body of the demand valve
to cover and protect the main pivot lever (5). Immerse and manually
agitate demand valve, diaphragm, slip ring and bayonet cap in
cleaning fluid. (Refer to cleaning fluid instructions.)
Note:
Types A and AE - Take care not to stretch or distort the positive pressure
spring.
5 After cleaning, rinse components in clean water then immerse and
manually agitate demand valve, diaphragm and bayonet cap in
disinfecting fluid. (Refer to disinfecting fluid instructions.) After disinfecting,
fold rubber cover away from the front of lung demand valve and rinse all
components in clean water, taking care not to damage main pivot lever.
6 Press re-set button (6) of type A and AE demand valves to lift the main
lever and to close the balanced piston.
7 Connect the medium pressure hose of the demand valve to a medium
pressure air supply. Turn ‘ON’ air supply then gently press main pivot
lever to blow out fluid residue.
Safety Note: Wear suitable eye protection.
8 Press the re-set button of type A and AE demand valves to lift the main
lever and to close the balanced piston. Turn ‘OFF’ and vent air supply then
disconnect medium pressure hose of the demand valve from air supply.
Thoroughly ‘dry’ components.
Note: Do Not
exceed a temperature of
60 degrees Celsius
when drying.
Refer to Figure 2.
1386
9 Lever Lubrication - Hold the
demand valve as shown in Fig.
2, with the main lever (1)
positioned to achieve maximum
access to the contact points of
the main lever and the
secondary lever (2). Direct and
locate the nozzle outlet of the
silicone spray canister inside the
demand valve body and apply
two short spray blasts of lubricant
in the direction indicated by the
arrow - Fig. 2.
Safety Note: Refer to the Caution and
Warning information on the
SILKOSPRAY® canister.
10 Carefully locate outer bead of diaphragm into groove in the body of
the demand valve. Locate tapered side of slip ring into recess in bead
of diaphragm.
!!
!!
!
Fig. 2
1
2
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