Table of Contents
BLW-400SSW — TROUBLESHOOTING (ENGINE)
Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a breakdown, please take a remedial action following the
diagnosis based on the Engine Troubleshooting (Table 15) information shown below and on the proceeding page. If the problem cannot be remedied, please leave the unit just as it is and consult our company's business office or service plant.
TABLE 15. ENGINE TROUBLESHOOTING (PART 1)
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 | Use the specified fuel or engine oil. |
| of fuel or engine oil at low | |
| temperature? |
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| Fuel with low cetane | Use the specified fuel. |
| number? | |
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| Fuel leak due to loose | Tighten nut. |
| injection 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 | Repair or replace. |
| malfunctioning? | |
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| Seizure of crankshaft, | Repair or replace. |
| camshaft, piston, cylinder | |
| liner or bearing? |
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| Compression leak from | Replace head gasket, tighten cylinder head bolt, glow |
| cylinder? | plug and 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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