Section II. TROUBLESHOOTING PROCEDURES
a. The table lists the common malfunctions which you may find during operation or maintenance of the ROWPU
or its components. You should perform the tests/inspections and corrective actions in the order listed.
b. This manual cannot list all malfunctions that may occur, nor all tests or inspections and corrective actions. If a
malfunction is not listed or is not corrected by listed corrective actions, notify your supervisor.
Table 3-1. Troubleshooting
TEST OR INSPECTION
1. LOW PRESSURE AT GAGE PI-1 LOCATED ON PRETREATMENT ASSEMBLY.
Step 1. Check pressure at PI-6.
If low, go to malfunction 6.
Step 2. Check for leaks or damage in tubing and connections.
If tubing or connections leak, notify your supervisor.
Step 3. Check valves V-5 and V-6 for correct setting.
If valve settings are incorrect, set correctly (para 2-4e).
Step 4. Check boost pump engine speed setting.
If speed setting is incorrect, set correctly (para 2-5f).
Step 5. Check raw water pump engine speed setting.
Set correctly (para 2-5e). If problem not corrected, shut down system (para 2-8) and
notify your supervisor.