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ENGINE MAINTENANCE SCHEDULE
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21. Battery cleaning Clean the terminals.
22. Battery charge condition If the lamp stays on while engine is running, check charging circuit.
23. Starter and generator
check and cleaning
Check wear condition of brush and commutator. Consult your local Doosan branch or distributor.
24. Wiring and connection
check
Check for loose terminals/connections and integrity of insulation.
25. Air filter element
replacement
Change element at 500 hours or 6 months, whichever come first, or sooner if the restriction indicator shows red.
26. Engine starting condition
and noise condition
Check engine stability and noise.
27. Exhaust smoke condition Check exhaust smoke color.
28. Cylinder compression
pressure
Consult your local Doosan branch or distributor.
29. Valve clearance check Incorrect valve clearance will result in increased engine noise and lower engine output thereby adversely
affecting engine performance. Check and adjust every 1000 hours. Consult your local Doosan branch or
distributor.
30. Positive crankcase
ventilation valve cleaning
Check according to the equipment specifications. Perform the adjustment, cleaning, repair or replacement every
1500 hours. (This is a recommended maintenance item ). Consult your local Doosan branch or distributor.
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