DCA-70SSJU SERIES —TROUBLESHOOTING (ENGINE)
Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a breakdown, use the tables shown for diagnosis based on the Engine Troubleshooting (Table 19). If the problem cannot be remedied, consult our company's business office or service plant.
TABLE 19. ENGINE TROUBLESHOOTING
SYMPTOM | POSSIBLE PROBLEM | SOLUTION | |
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| No fuel? | Replenish fuel. | |
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| Air in the fuel system? | Bleed system. | |
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| Water in the fuel system? | Remove water from fuel tank. | |
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| Fuel pipe clogged? | Clean fuel pipe. | |
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| Fuel filter clogged? | Clean or change fuel filter. | |
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| Excessively high viscosity of |
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| fuel or engine oil at low | Use the specified fuel or engine oil. | |
| temperature? |
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| Fuel with low cetane number? | Use the specified fuel. | |
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| Fuel leak due to loose injection | Tighten nut. | |
| pipe retaining nut? | ||
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Engine does not start. |
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Incorrect injection timing? | Adjust. | ||
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| Fuel cam shaft worn? | Replace. | |
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| Injection nozzle clogged? | Clean injection nozzle. | |
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| Injection pump malfunctioning? | Repair or replace. | |
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| Seizure of crankshaft, camshaft, | Repair or replace. | |
| piston, cylinder liner or bearing? | ||
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| Compression leak from | Replace head gasket, tighten cylinder head bolt, glow plug and | |
| cylinder? | nozzle holder. | |
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| Improper valve timing? | Correct or replace timing gear. | |
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| Piston ring and liner worn? | Replace. | |
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| Excessive valve clearance? | Adjust. | |
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Starter does not run. | Starter malfunctioning? | Repair or replace. | |
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Wiring disconnected? | Connect wiring. | ||
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