FIRE PUMP PIPING SYSTEM

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FOAM PROPORTIONERS (AFFF) PIPING SYSTEM

TM-55-1905-223-24-18-1 Landing Craft Utility (LCU) NSN 1905-01-154-1191 Basic Craft Part 1 Manual

TABLE 2-3. Control System Normal Indications

TM 55-1905-223-24-18-1

Table 2-2.

Troubleshooting - CONT

Malfunction

Test or Inspection

Corrective Action

FIRE PUMP PIPING SYSTEM - CONT

STEP 3. Check for air bound fire pump.

Open vent valve on pump casing until pump gains positive suction.

STEP 4. Check for closed discharge pressure gauge cutout valve.

Open discharge pressure gauge cutout valve.

STEP 5. Check for leaking lines fittings, or connections.

I n s p e c t all lines, tighten connections and fittings as necessary.

STEP 6. Check for sticking valves.

Refer to POTABLE WATER PIPING SYSTEM troubleshooting Malfunction 1, Step 6.

STEP 7. Check for leaking valves.

Refer to POTABLE WATER PIPING SYSTEM troubleshooting Malfunction 1, Step 8.

STEP 8. Check for worn or defective pump.

Refer to PUMPS AND MOTORS troubleshooting.

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