Stuart Turner Monsoon S1.5 bar Twin - Manual (Page 16)

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6 MAINTENANCE
6.11 Turn off water supplies to the pump and release pressure by
opening water outlets before attempting maintenance.
6.12 Inlet strainer: The inlet strainers may require periodical cleaning. The frequency
of this operation is dependent upon installation conditions.
The strainer is located in the inlet assembly of the pump casing (Fig. 15) and is
removed as follows:-
a) Isolate pump electrically.
b) Release all system pressure.
c) Isolate hot and cold water supplies via the integral pump isolating valve
located in the flexible hoses and release hose nuts connected to the pump
(see Section 3 - Pump Connections).
d) Remove M4 screws (2 off) from inlet assembly, lift brass inlet fitting (with ‘O’-
ring) and clamp away from pump casing (Fig. 15).
e) Remove strainer with long nose pliers noting location lug position upon
removal (Fig. 15) and clean thoroughly.
f) Refit strainer taking care to position lug in body inlet port location slot (Fig. 15)
and re-assemble pipework. Tighten M4 clamp screws to 1.5 Nm torque.
g) Re-connect flexible hoses and tighten (see Section 3 - Pump Connections).
h) After maintenance is completed refer to Section 5 - Commissioning section for
instructions on re-starting pump.
Fig. 15
M4 screws
Manifold clamp
Strainer
Location detail
Inlet port
‘O’-ring
Inlet fitting