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10 SERIES | OM−05463 |
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PREVENTIVE MAINTENANCE
Since pump applications are seldom identical, and pump wear is directly affected by such things as the abrasive qualities, pressure and temperature of the liquid being pumped, this section is intended only to provide general recommendations and practices for preventive maintenance. Regardless of the application however, following a routine pre- ventive maintenance schedule will help assure
Record keeping is an essential component of a good preventive maintenance program. Changes in suction and discharge gauge readings (if so
equipped) between regularly scheduled inspec- tions can indicate problems that can be corrected before system damage or catastrophic failure oc- curs. The appearance of wearing parts should also be documented at each inspection for comparison as well. Also, if records indicate that a certain part (such as the seal) fails at approximately the same duty cycle, the part can be checked and replaced before failure occurs, reducing unscheduled down time.
For new applications, a first inspection of wearing parts at 250 hours will give insight into the wear rate for your particular application. Subsequent inspec- tions should be performed at the intervals shown on the chart below. Critical applications should be inspected more frequently.
Preventive Maintenance Schedule
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| Service Interval* | ||||
Item |
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Daily | Weekly | Monthly | Semi- | Annually | ||
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| Annually |
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General Condition (Temperature, Unusual |
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Noises or Vibrations, Cracks, Leaks, |
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Loose Hardware, Etc.) | I |
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Pump Performance (Gauges, Speed, Flow) | I |
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Bearing Lubrication |
| I |
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| R | |
Seal Lubrication (And Packing Adjustment, |
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If So Equipped) |
| I |
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| R | |
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| I |
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Air Release Valve Plunger Rod (If So Equipped) |
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| I | C |
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Front Impeller Clearance (Wear Plate) |
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| I |
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Rear Impeller Clearance (Seal Plate) |
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| I |
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Check Valve |
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| I | |
Pressure Relief Valve (If So Equipped) |
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| C | |
Pump and Driver Alignment |
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| I | |
Shaft Deflection |
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| I | |
Bearings |
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| I | |
Bearing Housing |
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| I | |
Piping |
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| I | |
Driver Lubrication − See Mfgr’s Literature |
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Legend:
I = Inspect, Clean, Adjust, Repair or Replace as Necessary
C = Clean
R = Replace
* Service interval based on an intermittent duty cycle equal to approximately 4000 hours annually. Adjust schedule as required for lower or higher duty cycles or extreme operating conditions.
TROUBLESHOOTING | PAGE D − 3 |