Operation & Maintenance Manual
Break-in Period of Engine
Doosan engines are subjected to a final approval test to ensure the provision of high quality
engines before being shipped. However, engines are not operated for a long period of time in
this test. Therefore, new engines require a break-in period during the initial 50 hours after
delivery. By properly breaking-in an engine, the highest levels of engine performance can
be maintained long term.
If the engine's bearings are not properly broken in, they may be easily damaged and the
lifetime of the engine may be shortened by overloading or high speeds. In order to prevent
this, please follow the guidelines below for the initial 50 hours after delivery of new engine.
1. Fully warm up the engine until the engine temperature reaches the normal operation
condition, before starting operation of the engine.
2. Do not overload the engine or operate it at too high RPM.
3. Do not operate the engine with high speed at idle.
4. Do not rapidly start up or shut down.
5. Do not operate the engine with less than 70% of the engine load.
6. Inspection, check, and repair of engines should be managed by officially certified
technicians at certified service centers in compliance with corresponding rules.
Check Points
Check the following during the break-in period of a new engine.
1. Periodically check to verify the engine oil level is between the minimum and maximum
limit of the oil level gauge.
If you cannot accurately check the oil level through the oil level gauge,
rotate the oil level gauge to 180 degree, put it in the guide tube, and then
pick it out again to check.
2. If the oil indicator lamp on the apparatus is lighted or blinks, the oil pressure may be
insufficient. In this case, shutdown engine and check the oil level and replenish oil if
required. When replenishing engine oil, do not exceed the maximum on the oil level
gauge . If the oil level is normal, check other related parts such as the oil pressure
sensor, oil pump, or oil line.
The oil pressure may increase with high rpm and decrease with low
rpm. In addition, the pressure of cold oil may be higher at a specific rpm
than of warm oil. This phenomenon may even occur when the engine
operates properly.
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Summary of Contents for Infracore HP210WDO-T4F
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Page 8: ...8...
Page 9: ...Foreword 9...
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Page 13: ...Drawbar Instructions 13...
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Page 17: ...Safety 17...
Page 25: ...Safety Operation Maintenance Manual 25...
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Page 27: ...Noise Emission 27...
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Page 33: ...General Data 33...
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Page 37: ...Operating Instructions 37...
Page 55: ...Engine Operation 55...
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Page 87: ...Lubrication 87...
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Page 91: ...Maintenance 91...
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Page 101: ...Maintenance Operation Maintenance Manual Preventive Maintenance Schedule Back 101...
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Page 103: ...Troubleshooting 103...
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Page 115: ...Appendix A 115...
Page 116: ...Operation Maintenance Manual Appendix A Warranty 116...
Page 117: ...Appendix A Operation Maintenance Manual 117...
Page 118: ...Operation Maintenance Manual Appendix A 118...
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