28
Figure 6 - 7
Rubber found on the Rotor indicates that the pump has run dry. Rubber can be cleaned with
acetone, paint thinner or other petroleum cleaner. Inspect the Rotor for excessive wear and
replace it if necessary. If unsure, replace the Stator and Liner and perform a flow check. Flow
should read about 14 GPM at 15 PSI. Run the pump allowing the discharge to flow into a 5
gallon bucket. Filling the bucket at 15 PSI should take about 23 seconds.