15.1 Preventive Maintenance
DETROIT DIESEL 53
Inspect the exterior of the radiator core. very 1,000
hours or 30,000 miles and, if necessary, clean it with a
quality grease solvent such as Oleum and compressed
air. Do not use fuel oil, kerosene or gasoline. It may be
necessary to clean the radiator more frequently if the
engine is being operated in extremely dusty or dirty
minimum. Select the proper grade of fuel in accordance
with the Diesel Fuel Oil Specifications in Section 13.3.
Open the drain at the bottom of the fuel tank every 500
hours or 15,000 miles to drain off any water or sediment.
Drain approximately one-fourth pint of fuel to remove
sediment and water from the strainer and the filter daily
by opening the drain cock in the bottom of each shell.
Install new elements every 300 hours or 9,000 miles or
when plugging is indicated.
1972 General Motors Corp