Jabsco Pump Catalog

SYMPTOMS • Impeller appears to have swollen. • Blades appear wider than impeller hub. • Rubber may feel sticky. CAUSE • Chemical attack, more common with oily bilge water or diesel transfer. REMEDY • Ensure impeller is rinsed after use. • Remove impeller when not in use. • Remove impeller for long-term storage. Troubleshooting 4 SYMPTOMS • Blades have some or severe permanent set. CAUSE • Normal use of impeller. • Long-term storage in pump. • Normal end of impeller life. REMEDY • Refit impeller to rotate in opposite direction. • Remove impeller for long-term storage. • Replace impeller. Troubleshooting 5 SYMPTOMS • Blades cracked about halfway up the length. • Some blades missing. • Reduced flow. CAUSE • Normal end of impeller life. • High discharge pressure. REMEDY • Replace impeller; check for impeller pieces in discharge plumbing. • Reduce outlet restrictions or increase outlet plumbing diameter. Troubleshooting 6 153 12 Impeller Replacement Troubleshooting Guide