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PUMP HOUSING DISASSEMBLY
Prior to removal of pump, the shut-off valves in the suction and discharge pipe work must be
closed. If there is any risk that product many harden, crystallize or freeze in the pump it
should be thoroughly drained and cleaned immediately after use. Similar attention must
apply to the seal flush system. Remove power before servicing to prevent unintended start of
the pump by an authorized electrician.
Loosen and remove the four wrench bolts from
the cover. Remove the cover. If it is stuck, tap on
the cover with a soft hammer.
MAINTENANCE
Remove rotor-retaining bolts. Use a wrench. To
remove rotor-retaining bolts, place the plastic dowel
between the rotors as shown in Figure 2. Turn the
first rotor bolt counter- clockwise. Remove the rotor
bolts and spring washers
The rotors can be removed from the pump housing by
pulling straight together with top and bottom. If it is
stuck tight, alternately tap on the back of the inlet and
outlet ports with soft hammer. Handle the rotors with
care to avoid damage.
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