Detroit Diesel EPA04 Series 40 Operator's Manual page 117

3. Start the engine and operate it for
fifteen minutes to circulate the
solution thoroughly.
4. Stop the engine and allow it to
cool.
5. With the engine cool, drain the
cooling system completely.
6. Refill the cooling system with
clean, soft water and operate it for
fifteen minutes.
7. Stop the engine and allow it to
cool.
8. With the engine cool, drain the
cleaner residue from the cooling
system.
9. Refill the system with the required
coolant. Refer to section G. How
to Select Coolant.
10. Entrapped air must be purged
after filling the cooling system.
To do this, start the engine and
allow it to warm up without the
pressure cap installed. With the
transmission in neutral, increase
engine speed above 1000 RPM
and add coolant as required.
Install the pressure cap after the
coolant level has stabilized at
the bottom of the radiator filler
neck or the level indicated on the
deaeration tank .
All information subject to change without notice. (Rev. May 2004)
DDC-SVC-MAN-0057 0305 Copyright © 2003 DETROIT DIESEL CORPORATION
SERIES 40 ENGINE OPERATOR'S GUIDE
If the engine overheats and
the coolant level is satisfactory,
the cooling system may require
cleaning with a descaling solvent
and backflushing. Authorized
Detroit Diesel service outlets are
properly equipped to perform these
services.
In addition to the cleaning procedure,
other components of the cooling
system should be checked periodically
to keep the engine operating at peak
efficiency.
Hoses. Cooling system hoses should
be inspected and any hose that shows
obvious signs of damage or feels
abnormally soft or hard should be
replaced. Damaged clamps should
also be replaced. All external leaks
should be corrected as soon as
detected.
NOTE:
If Detroit Diesel Power Cool
antifreeze/coolant (or equivalent fully
formulated, precharged antifreeze
is used, a precharge element is not
required. Coolant inhibitor levels
must be checked at the intervals
listed in Table 28.
NOTICE:
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