Wacker Neuson PST2-400, Operator'S Manual

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Maintenance PST2/PSTF2 400
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3.4 Disassembly
See Graphic: wc_gr000411
Note: For assembly or disassembly, place the pump on its side.
Note: It is not necessary to drain the oil for disassembly and inspect
ion of the impeller (w) or volute (aa) . However, drain oil if further
disassembly and testing is required.
3.4.1 Remove three nuts (af) and the suction strainer (ac) .
3.4.2 Remove volute (aa) and volute gasket (ah) .
3.4.3 While keeping the impeller (w) from rotating, remove stirrer nut (z) ,
lockwasher (y) and washer (x) .
Impeller vanes may be very sharp due to excessive wear. Handle with
care.
3.4.4 Remove impeller (w) .
Note: If the parts are worn or damaged, make sure to replace them
with new ones.
CAUTION