Stuart Turner Jet Pump 45 PS User Manual
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Cont ...
5 MAINTENANCE
5.11
Pressure vessel: The pressure vessel should be checked once every 6 months
to have its air charge checked or replenished, this should be carried out
as
follows:-
a) Isolate pump electrically.
b) Isolate the water supply by closing the appropriate isolating valves.
c) Release system water pressure by opening an outlet on the system.
d) Disconnect hose fitted to pressure vessel.
e) Check air charge at Schrader valve (Fig. 7) using a tyre pressure gauge.
f) Replenish air charge by injecting air into the vessel via the Schrader valve
using a car or bicycle pump (Fig. 7).
g) Re-connect hose to pressure vessel to achieve a water tight connection.
Ensure fibre washer seal is in place.
h) Close all system outlets, open inlet and outlet isolating valves.
i) After maintenance is completed refer to Section 4 - Commissioning for
instructions on re-starting pump.
5.12
Cleaners, Disinfectants and Descalents:
Acid based descalents and aggressive cleaning agents must not
come into contact with the pump. The pump must be removed from
the system prior to the use of these products. The system should be
flushed to remove all chemicals before the pump is re-connected.
If in any doubt as to the suitability of the chemical solutions, please
contact our Pump Assist helpline.
Fig. 7
Schrader valve
(under cap)
Cap
Pressure vessel
Model
Air Precharge
bar (psi)
All models
2.0 (29)