DETROIT DIESEL 53
Preventive Maintenance
15.1
Item 5
deposits on the internal walls of the cooling system.
When a thorough cleaning of the cooling system is
required, it should be reverse-flushed.
Inspect the exterior of the radiator core every 1,000
hours or 30,000 miles and. if necessary, clean it with a
quality grease solvent such as Oleum and dry it with
If the cooling system is protected by a coolant filter
compressed air. Do not use fuel oil, kerosene or
and conditioner, the filter element should be changed
gasoline. It may be necessary to clean the radiator
every 500 hours or 15,000 miles.
more frequently if the engine is being operated in
extremely dusty or dirty areas.
Item 4
Inspect all of the cooling system hoses at least once
every 500 hours or 15,000 miles for signs of
deterioration. Replace the hoses if necessary.
Item 7
Check the prime on the raw water pump; the engine
should not be operated with a dry pump. Prime the
pump, if necessary, by removing the pipe plug
provided in the pump inlet elbow and adding water.
Item 5
Reinstall the plug.
Item 7
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