Doosan P185WDOU-T4F, Operation And Maintenance Manual

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ENGINE OPERATION Operation & Maintenance Manual
7. Follow the instructions provided by the battery manufacturer when checking or
handling batteries.
Battery f uid is corrosive and dangerous because of its explosiveness
and toxicity. Therefore, it should only be handled by a skilled technician
who specializes in battery f uid.
8. Only certified professional technicians should repair and maintain engines.
9. Only appropriate tools should be used. If the jaws of a wrench are worn out, the
wrench might slip during use, causing safety accidents.
10. Do not allow other persons to stay or pass under an engine when lifting the engine
with a crane. Before lifting the engine, ensure there is no one around the engine and
reserve enough safety space.
11. Before inspecting or replacing an electrical apparatus, disconnect the battery Negative
(-) cable first. Connect the battery Negative (-) cable after completing all required work
for checking or replacing the electrical apparatus in order to prevent a short circuit.
12. Before performing electric welding works, turn off engine, block the power supply to
the engine, and remove the wire harness connector connected to the engine control
unit (ECU).
13. Do NOT give any electric or mechanical shocks or perform welding work on the
electrical apparatus or the ECU.
General Repair
1. Wait until the engine is properly cooled before starting work otherwise, you may get
burned by the heated engine. Before performing fuel line work, check the common
rail pressure and engine temperature by using the failure diagnosis device.
2. Disconnect the battery Negative (-) cable to prevent damage of wires and sensors
caused by a short circuit.
3. Engine oil and coolant may damage paint. Engine oil and coolant should be stored in
separate containers and marked for safe management.
4. Store the disassembled parts in a specified space to avoid damage or contamination.
5. Use specified and special tools for efficient and safe repair.
6. If parts need to be replaced, use only genuine Doosan parts for replacement. Using
unauthorized or non-factory remanufactured parts may cause critical damage and
faults in engine performance.
7. Replace parts such as cotter pins, gaskets, o-rings, seal rings, oil seals, and washers
with new ones during repairs. Reuse of parts may be the cause of engine faults
and engine may not operate properly.
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