Table 2-3. Troubleshooting (Cont)

Table 2-3. Troubleshooting (Cont) - TM-5-6115-585-34_48

Table 2-3. Troubleshooting (Cont) - TM-5-6115-585-34_50

TM-5-6115-585-34 Generator Set Diesel Engine Driven Tactical Skid Mtd 5 KW 1 Phase 2 Wire 1 Phase-3 Wire 3 Phase-4 Wire 120 120/240 and 120/208 Volts Manual
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TM5-6115-585-34 NAVFAC P-8-262-12 TO-35C2-3-455-2 TM-05684C-34 Table 2-3. Troubleshooting (Cont) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 13. METALLIC KNOCKING, CLICKING, OR POUNDING FROM CRANKCASE OR CYLINDER BLOCK. Step 1. Check for worn or loose comecting rod bearings (paragraph 7-10). Replace bearings if necessary. Step 2. Check for loose piston and connecting rod assembly (paragraph 7-10). Repair or replace assembly. 14. LOW ENGINE COMPRESSION. NOTE Normal cylinder pressure is between 350 and 450 psi depend- ing upon engine condition. Maintenance should be considered if pressure is below 325 psi or if there is a 15 percent or more difference between cylinders. Step 1. Check for loose cylinder head (paragraph 7-9). Properly tighten head. Step 2. Check for leaky head gasket (paragraph 7-9). Replace gasket. Step 3. Check for broken valve spring (paragraph 7-9). Replace broken springs. Step 4. Check for sticking valves (paragraph 7-9). See sticking valve section below. Step 5. Check for leaking valves (paragraph 7-9). Clean and, if necessary, regrind valves and valve seats. Step 6. Check for worn or sticking piston rings (paragraph 7-10). Replace rings if necessary. Check condition of cylinder walls. Step 7. Check for worn cylinder walls and pistons (paragraphs 7-10 and 7-19). Refinish cylinder walls. Repair or replace pistons. 15. STICKING VALVES. Step 1. Check for dirty, scored, or gummy valve stems or guides (paragraph 7-9). Clean stems and guides. If necessary, replace guides. Step 2. Check for weak or broken springs (paragraph 7-9). Replace springs. 2-9

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