Patterson HSC, Operation And Maintenance

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11
Pump Vibrates

Misalignment.

Foundation not sufficiently rigid.

Impeller partially clogged.

Mechanical defects: bent shaft, rotating element binds, bearings worn, coupling defective.

Suction and discharge pipes not anchored.

Pump cavitating from too high a suction lift.

Air entrainment in the pump suction due to low submergence.
RECOMMENDED SPARE PARTS FOR HVES PUMPS
Reference: Assembly Section
INTERMITTENT DUTY
Number Description
7 Casing Ring
14 Shaft Sleeve
65 Mechanical Seal
Set of gaskets and O-Rings
Coupling and its accessories (not shown)
Permatex Ultra Blue RTV Silicone Product No. 77B or equivalent sealant
Dow Corning 111 Valve lubricant & Sealant or equivalent
Dow Corning 732 Multi Purpose Sealant or equivalent
CONTINUOUS DUTY
Number Description
2 Impeller
6 Shaft
7 Casing Ring
14 Shaft Sleeves
16 Bearing (inboard)
18 Bearing (outboard)
Bearing Retaining Rings
Shaft Sleeve Retaining Rings
65 Mechanical Seal
All Hardware (not shown)
Set of gaskets and O-Rings
89 & 89A Set of Lip Seals
Coupling and its accessories (not shown)
Permatex Ultra Blue RTV Silicone Product No. 77B or equivalent sealant
Dow Corning 111 Valve lubricant & Sealant or equivalent
Dow Corning 732 Multi Purpose Sealant or equivalent