MIL-HDBK-1164
Table 19 (Continued)
Cause of Trouble
Symptom
Remedy
Packing too tight
Check for proper leakage to provide shaft
lubrication.
Pump selection
Check capacity rating, etc.
wrong
Wrong direction of
Check power leads.
rotation
Excessive speed
Check power frequency and voltage; check
gear ratios.
Pump vibrates
Air entering pump
Check on over-pumping and water level
excessively.
drawdown; check leaks in well vent.
Bearing trouble
Check for sand in water. Check lubricant (oil
and grease) for proper grade.
Rough operation
Check disconnected motor. Check for sand in
impeller or bowl. Check for wear in rotating
parts.
113
Previous Page
