| Trouble |
Probable Cause and Remedy |
|
|
-
Drive
malfunction: verify that drive powered. Assure all alarm
circuits are clear. Check drive motor current and speed
settings.
-
Process
conditions changed: check process conditions for proper
temperature, pressures, viscosities, and materials.
-
Entrained
particle: disassemble and clean pump. Replace any damaged
parts.
-
Possible
internal damage: disassemble and clean pump. Replace any
damaged parts. Consult factory.
|
|
|
- Same as above: same as above.
- Pump rotation: correct drive
arrangement or power leads.
|
- Excessive seal assembly leakage
|
- Worn lip seal: replace lip seals.
- Worn seal plate: replace seal
plate and coupling if necessary.
- Insufficient inlet pressure:
mechanical face seal version - increase inlet pressure.
|
|
|
- Worn gear(s): replace worn gear(s).
- Worn bearings: replace worn
bearings.
- Process conditions changed:
consult factory for gear clearance recommendations for new process
conditions.
|
