Outer Magnet Installation - Liquiflo H Series Installation, Operation & Maintenance Manual

Liquiflo Installation, Operation & Maintenance Manual

Outer Magnet Installation

The procedure for positioning the outer magnet on the motor shaft is dependent on the motor frame used
with the pump. The four standard cases are described below:
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I. NEMA 56C, 56HC & IEC 90 Frames:
The end of the motor shaft must be flush
with the inner surface of the outer magnet's
hub (see diagram at right).
NOTE: The IEC 90 motor (not shown) must have a B5
Flange to be compatible with the pump mounting bracket.
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II. NEMA 143TC & 145TC Frames:
The motor shaft must protrude beyond the
inner surface of the outer magnet's hub by
1/16 in. or 1.6 mm (see diagram at right).
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III. IEC 71 & IEC 80 Frames:
The outer magnet's hub is positioned by a
snap ring installed in the hub. The end of
the motor shaft must contact the snap ring
(see diagram at right).
NOTE: The IEC motor must have a B5 Flange, as
shown, to be compatible with the pump mounting
bracket.
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IV. NEMA 182TC & 184TC Frames:
An adapter plate is required to mount the
motor to the pedestal. The outer magnet's
hub is positioned by a snap ring installed
in the hub. The end of the motor shaft
must contact the snap ring (see diagram
at right).
NOTE: Complete pumps ordered for use with
NEMA 182/184TC motor frames will be supplied
with the adapter plate (P/N SP0046) and adapter
mounting bolts (P/N 641105).
MAG-DRIVE Gear Pumps
Models H1-H9, 31-39 & 311 - MC
29