4. Commissioning and Operation
4.1. Preparation
At the time of initial commissioning of a new or overhauled engine make sure to have observed
the “Technical Information for the installation DAEWOO generator engines”.
•
Oil filler neck on cylinder head cover
Before daily starting of the engine, check the fuel, coolant and oil level, replenish if necessary.
The notches in the dipstick indicate the highest and lowest permissible oil levels
The oil required in the sump is specified in the “Engine Specification.
NOTE :
The oil required to fill the oil fillers and pipes depends upon the engine and use and
must be determined individually at the time of initial commissioning. (Make the Max
and Min. marks of the determined quantity on the oil level gauge.)
•
Cleanliness
Ensure outmost cleanliness when handling fuels, lubricants and coolants
4.2. Breaking-in
4.2.1. Operation of a new engine (Break-in)
Because the sliding surfaces of a new engine are not lapped enough, the oil film can be
destroyed easily by overload or overspeed and the engine life-time may be shortened.
Therefore the following things must be obeyed by all means.
Up to the first 2,000 km (150 hours)
Engine should be run at fast idling until the temperature of the engine becomes normal oper-
ating condition.
Overload or continuous high speed operation should be avoided.
High speed operation with no load should be prevented.
Abrupt start and stop of the engine should be avoided.
Engine speed must be under 70% of its maximum speed.
Maintenance and inspection must be accomplished thoroughly.
4.2.2. Check points for break-in
During the break-in (the initial running of the engine) period, be particularly observant as fol-
lows:
a) Check engine oil level frequently. Maintain oil level in the safe range, between the “min.” and
“max.” marks on dipstick.
NOTE :
If you have a problem getting a good oil evel reading on dipstick, rotate dipstick 180˚
and re-insert for check.
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