Table 5-1. Direct Support Troubleshooting Table.

SECTION II. DIRECT SUPPORT TROUBLESHOOTING

SECTION III. DIRECT SUPPORT MAINTENANCE PROCEDURES - TM-10-4320-226-14_222

TM-10-4320-226-14 Water Pumping Assembly Diesel Engine Driven Wheel Mounted 350 Gallons Per Minute (GPM) 275 Foot Head Models: 350 PAW Manual
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TM 10-4320-226-14 Table 5-1. Direct Support Troubleshooting Table. MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 2. ENGINE STARTS AND RUNS ERRATICALLY AFTER WARMUP. Step 1. Test fuel injection nozzles (paragraph 5.5.6). Replace Step 2. Check Replace fuel injection nozzles (paragraph 5.5.7). compression (paragraph 5.5.3). engine (paragraph 5.5.1). 3. NO OR LOW SUCTION OR DISCHARGE PRESSURE. Step 1. Inspect impeller. Replace impeller (paragraph 5.6.2). Step 2. Inspect flexible coupling. Replace flexible coupling (paragraph 5.6.3). Step 3. Inspect sleeve and rotating assembly. a. Repair sleeve and rotating assembly (paragraph 5.6.4). b. Replace centrifugal pump assembly (paragraph 5.6.1). 4. CENTRIFUGAL PUMP NOISY. Step 1. Inspect impeller. Replace impeller (paragraph 5.6.2). Step 2. Inspect flexible coupling. Replace flexible coupling (paragraph 5.6.3). Step 3. Inspect sleeve and rotating assembly. a. Repair sleeve and rotating assembly (paragraph 5.6.4). b. Replace centrifugal pump assembly (paragraph 5.6.1). 5-4

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