Nash Vacuum Pump Cl 3002 Maintenance Manual

Do not attempt seal replacement without a seal puller and the manual’s exact orientation diagram. Installing a seal backward will flood the bearing housing in minutes.

| Symptom | Likely Cause | Corrective Action | |---------|--------------|--------------------| | Low vacuum | Low sealant flow | Increase flow rate; check strainer | | | Worn cone ports | Replace cone inserts (see Section 6.2) | | Overheating | Scale in jacket | Acid flush (citric acid, 5% solution) | | | High discharge pressure | Check downstream backpressure valve | | Excessive vibration | Cavitation | Increase sealant temperature or pressure | | | Rotor imbalance | Replace rotor or re-balance dynamically | | Leaking shaft seal | Mechanical seal faces worn | Replace seal kit (PN 3002-SEAL-01) | Nash Vacuum Pump Cl 3002 Maintenance Manual

: The pump must be drained if stored or used in conditions where the liquid might freeze. Manual Resources Do not attempt seal replacement without a seal