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Impeller replacement
Inspect impeller vane edges for excessive cracks, pitting or corrosion damage. Replace impeller if exces-
sively worn or defective.
Gaskets, O-rings, and seats replacement
WARNING:
Risk of death or serious injury. Leaking fluid can cause fire and/or burns. Replace all gaskets
and O-rings at each overhaul or disassembly.
WARNING:
Risk of serious personal injury or property damage. Fasteners such as bolts and nuts are criti-
cal to the safe and reliable operation of the product. Ensure appropriate use of fasteners during
installation or reassembly of the unit.
•
Use fasteners of the proper size and material only.
•
Replace all corroded fasteners.
•
Ensure that all fasteners are properly tightened and that there are no missing fasteners.
Motor support
Inspect the motor support for any cracks or excessive corrosion damage. Replace if necessary.
Motor shaft check
Check the shaft for straightness or excessive wear, including thread wear or galling. If damage is evi-
dent, contact Baldor authorized motor repair center for motor repairs.
5.3 Reassembly
5.3.1 Reassemble the pump
How to reassemble HSUL pump
1.
Check vent hole in motor adapter (340) to be sure it is clear.
Figure 6: Pump reassembly
2.
Clean and remove any burrs from all mating metal surfaces, including shaft and impeller bore.
3.
Align Motor Adapter on motor flange and fasten.
NOTICE:
On certain sizes, the same set of screws secures the casing, motor adapter and motor. On
these sizes clamp the motor adapter to the motor while installing impeller.
4.
Place motor key on shaft, and slide impeller onto shaft until seated. Be sure impeller shaft is bot-
tomed out on impeller bore and secure with impeller screw (370C) and impeller washer (528J).
5.
Align casing gasket (513) on motor adapter (340). Align casing (100) to motor adapter and fasten.
6.
Connect Low Voltage wires to moisture detector (required to maintain motor warranty) and high
temperature alarm. Connect power wires to power supply. Verify proper rotation, (counter-clockwise
rotation when viewing suction side of pump.
5.3 Reassembly
HSUL Installation, Operation, and Maintenance Manual
21
Summary of Contents for Goulds Pumps HSUL
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