TM 55-1930-209-14&P-19 Table 4-2.  Preventive Maintenance Checks and Services for ROWPU System (Continued) B - Before D - Daily Q -  Quarterly D - During W - Weekly S -  Semiannually A - After M - Monthly A -  Annually INTERVAL ITEM PROCEDURES EQUIPMENT ITEM TO BE CHECK FOR AND HAVE IS NOT READY/ NO. INSPECTED REPAIRED OR ADJUSTED AVAILABLE IF B   D   A   D  W  M   Q   S   A AS NECESSARY c.  Check for damage, especially to flowme- Flowmeter inoper- ters, indicators, control panels, and elec- able. trolytic cells.  Repair as necessary. d.  Check for loose or missing securements and fasteners.  Tighten or replace as nec- essary. e.  Remove rust and corrosion and touch up paint in accordance with TB43- 0144 as necessary.  Do not paint threads or labels. 2 Wiring a.  Check wiring for loose or missing con- Cables damaged. nections and frayed cables.  Tighten or replace as necessary, using insulated tools. b.  Visually check wiring for loose connec-   Sparks are seen. tions.  If sparks are seen, report to shift leader or bargemaster so corrective action can be taken.  Shut off power.  Use insulated tools while performing inspec- tion. 3 Seawater Filter Make sure seawater filter (filter 3) in line to chlorination system is clear and seawater pressure regulator is set to 10 psi. 4 Circulating Pump Check oil level on chlorinations unit circulat- ing pump (Void port 2) to make sure oil is up to mark.  Add oil as necessary. 5 Chlorination Unit a.  Monitor the following: Panel, Meters and Gauges 1)  Makeup water flowmeter to assure 36 gph. 2) Cooling water flowmeter to assure 80 gph. 3) Cooling water pressure gauge to assure 20-40 psi. 4) Heat exchanger pressure gauge to assure 30-60 psi. 4-6