TM 10-4610-239-24
TM 08580B-24/3
Table 2-2. Unit Troubleshooting - Continued
Malfunction
Test or Inspection
Corrective Action
R.O. PUMP ASSEMBLY - Continued
2. PUMP ASSEMBLY IS NOISY DURING OPERATION - Continued
If mounting plate is not secure, secure mounting plate.
Step 3.
Check that stand assembly is secured to ROWPU frame.
If stand assembly is secure, go to step 4.
If stand assembly is not secure, secure stand assembly.
Step 4.
Place hand on pump and pump motor to locate source of noise.
If pump is noisy, replace pump assembly. Refer to paragraph 2-130.
If pump motor is noisy, replace R.O. pump electric motor. Refer to paragraph 2-124.
3. R.O. PUMP SHUTS DOWN OR FAILS TO START - LOW PRESSURE INDICATOR LIGHTS
Step 1.
Check RAW WATER PUMPS NO. 1 and NO. 2 indicators and BOOSTER PUMP
indicator.
If lit, go to step 2.
If any are not lit, troubleshoot pump(s) as required.
Step 2.
Push R.O. Pump RESET switch to RESET, then release. Push R.O. PUMP switch to
START while watching CARTRIDGE FILTER gage. Then let R.O. PUMP switch return
to RUN position.
If gage indicates less than 20 psi, go to step 3.
If gage indicates more than 20 psi, change cartridge filter tube elements. Refer to
TM 10-4610-239-10.
Step 3.
Push R.O. PUMP RESET switch to RESET, then release. Push R.O. PUMP switch to
START while watching MULTIMEDIA FILTER gage. Then let R.O. PUMP switch
return to RUN position.
If gage indicates less than 15 psi, go to step 4.
If gage indicates more than 15 psi, backwash multimedia filter Refer to TM 10-4610-
239-10.
2-45
