4. Regular Inspections
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General Information
General Information
After purchasing the engine, the initial engine performance
degrades over time due to aging of the various parts of the
engine.
By performing regular inspections and part replacements
according to the maintenance schedule recommended by
Hyundai Doosan Infracore, the engine can be maintained in
its optimal state for long periods of time and unanticipated
accidents can be prevented.
It is the responsibility of the engine operator to operate and
maintain the engine correctly. Inspections and replacements
should be performed by certified technicians in service
centers equipped with the specified tools and facilities. Make
sure to follow the instructions below during inspections.
1. Perform inspections on flat, level ground.
2. Unless otherwise unavoidable, make sure to stop the
engine before performing inspections.
3. Disconnect the negative (-) battery cable before
performing inspections.
4. Perform inspections in a well-ventilated workspace.
5. When working underneath the engine, make sure to
support the engine with chocks or lifters.
Daily Inspections
Daily inspections refer to inspections performed by the
engine user every day before running the engine. These
inspections must be performed for the safety of the engine
and the operator.
The following inspection items are the minimum daily inspec-
tion items which must be checked.
1. Check whether the engine starts smoothly and whether
the fuel, oil and coolant levels are normal.
2. Check the color of the exhaust gas and whether any toxic
fumes are discharged from the engine.
3. Check for any abnormal noises after starting the engine.
4. Check for any oil or coolant leaks.
• Before inspecting the engine after it has been
running, make sure to wait until it has cooled off
sufficiently. Otherwise, there is a risk of being burnt.
• Running the engine in an enclosed space may cause
poisoning due to exhaust gas. Make sure to perform
inspections in a well-ventilated workspace.
• Unless otherwise unavoidable, do not perform
inspections underneath the engine.
• Keep the engine away from open flames during
inspections. Otherwise, there is a danger of a fire
starting due to evaporative emissions from fuel, oil,
or the battery.
• In the event that the engine must be inspected while
it is running, do not wear gloves or accessories such
as necklaces, rings, or watches. Severe injuries may
occur if anything is caught in rotating parts.
• People with an artificial heart or artificial organs
should not approach the engine while it is in opera-
tion. Artificial organs may malfunction due to the
high-pressure current running through injectors and
the engine control unit.
• Performing inspections incorrectly may lead to
engine failure.
• Cleaning an engine with liquids such as water or wax
may cause electrical parts to malfunction.
• Note that batteries, cables, and electrical wiring have
current running through them.
• Do not place heavy objects or apply excessive force
or shock to fuel-related parts.
• Before connecting battery terminals, make sure to
check the polarity (positive '+' and negative '-') of the
terminals. Connecting terminals with the polarity
reversed may damage parts in electrical systems and
cause a fire.
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