DCA-15SPX4 —TROUBLESHOOTING (ENGINE)
Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a breakdown, use Table 16 shown below for diagnosis of the engine. If the problem cannot be remedied, consult our company's business office or service plant.
TABLE 16. 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. | 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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| Battery discharged? | Charge battery. | |
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Starter does not run. | Starter malfunctioning? | Repair or replace. | |
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Key switch malfunctioning? | Repair or replace. | ||
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| Wiring disconnected? | Connect wiring. | |
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