Pump Requires Frequent Re-Priming; Motor Does Not Turn Or Turns Intermittently; Pump Leaks Fuel - Simplex STS DAY TANK Manual

Pump Requires
1. Inoperative foot valve.
Frequent
2. Inoperative check valve.
Re-Priming
3. Inoperative solenoid valve.
4. Pump cavitation.
5. Plumbing air leaks.
6. Lift too high.
7. Pump seals leaking.
Motor Does
1. Control power not available.
Not Turn or
2. Motor thermal overload condition.
Turns
3. Pump failed and seized.
Intermittently
4. Motor failure.
1. Loose pump plumbing fittings.
Pump Leaks
Fuel
2. Worn pump shaft seal.
3. Pump pressure relief valve failure.
4. Fuel leak elsewhere running towards pump area.
5. Excessive head from overhead storage tank.
6. Worn pump O-rings.
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