Slurry Pump
WH18AA11D00EN_01G.DOC JAN 04-W08
Care and maintenance
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c) Isolate the drive motor and attach suitable warning plates to the relevant
switches. It is advisable to remove the fuses and/or lock the isolator open to
prevent accidental starting.
d) Where fitted, a mechanical seal requires setting for disassembly and section
9.5.3 would provide the relevant instructions.
e) Disconnect the flush water tapping, if fitted.
4. Opening the pump – Back Pull-Out Method
a) Remove the drive guard and disconnect the belt drive or direct coupling as
applicable.
b) Remove the bearing frame screws (P11) and washers (P12).
c) Remove case fixings (B). Keep them safe for reassembly. (Leave case
clamping fixings (C) in position to support the case.)
d) Use jacking screws (P10) to ease apart the case and the rotating assembly by
about 6 mm.
e) Remove case shims (P3) and jacking screws (P10).
f) Attach a suitable sling through the bearing frame. Take the weight of the frame
assembly and withdraw it from the case, complete with back liner and impeller.
5. Opening the pump – Front Pull-Out Method
a) Disconnect the inlet and outlet pipework from the pump.
NOTE: METAL PUMPS ARE EQUIPPED WITH INLET AND OUTLET FLANGE GASKETS (F2, F4).
ENSURE THAT THESE ARE SAVED FOR REASSEMBLY. RUBBER PUMPS HAVE INTEGRAL
GASKETS.
b) Note the position of the outlet to ensure correct reassembly.
c) Support the case in slings –cases for large pumps incorporate lugs (H) for
attaching lifting shackles.
d) Remove case fixings (B & C). Keep them safe for reassembly.
e) Use jacking screws (P10) to ease apart the case and the rotating assembly.
f) Withdraw the case over back-liner (W4) and impeller (W3) and lower it onto a
suitable support.
g) Remove jacking screws (P10).
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