Wright Flow Technologies Revolution R0150X, Installation, Operation And Maintenance Manual

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Page 17
When installing a pump complete with base plate, motor and drive, the following
guidelines must be observed:
a) The preferred drive arrangement for any circumferential piston or rotary
lobe pump is in-line direct coupled. If an alternative is required please
contact Wright Flow Technologies or your Wright Flow Technologies
distributor.
b) Flexible couplings must always be incorporated and correctly aligned
within the limits recommended by the coupling manufacturer. To check
coupling alignment rotate the shaft by at least one full revolution and
ensure that the shaft rotates smoothly.
Couplings of a non-flexible design must never be used.
c) Couplings must always be enclosed in a suitable guard to prevent contact
with rotating parts, which could result in personal injury. Guards should be
of suitable material, (see d) and of sufficiently rigid design to prevent
contact with rotating parts under normal operating conditions.
d) When the pump is installed in a flammable or explosive environment, or is
used for handling flammable or explosive materials, special consideration
must be given. Not only to the safety aspects of the drive unit enclosure
but also to the materials used for both the coupling and the guard to
eliminate the risk of explosion.
e) Base plates must be secured to a flat level surface such that distortion
and misalignment are avoided. Once base plates are fastened in position
the drive alignment must be re-checked, (see b).
f) When using electric motor drives, ensure that the electrical supply is
compatible with the drive and controls and that the method of wiring is
correct for the type of starting required by the motor i.e. Direct On Line, or
other similar method. Ensure all components are correctly grounded.