Model CB C22BA

Visual inspection of mechanical seal assembly for fluid leakage, check seal face condition (carbon/ceramic or silicon carbide/carbon), verify fluid barrier fluid level if applicable. Listen for abnormal noise from seal area during operation.

Check bearing temperature with infrared thermometer (normal range typically 50-80°C), visually inspect grease condition at grease lubrication ports, verify bearing for play/looseness by hand rotation with pump isolated, check for discoloration indicating overheating.

During off-line inspection, examine impeller surfaces for erosion pitting or cavitation damage, check wear ring clearance (should be minimal), verify impeller is not contacting casing, inspect leading edge of impeller for blade erosion.

Visual external inspection for stress cracks, pitting corrosion, or white deposits (salt accumulation). Check casing material certification (Ni Al Bronze, Super Duplex, or Stainless Steel per specifications). Listen for internal grinding/rubbing sounds during operation.

Verify pump-motor coupling alignment using dial indicator (run-out should be <0.05mm), check for visible coupling wear or damage, inspect shaft for corrosion or scoring, verify proper coupling lubrication if grease-lubricated type.