Detroit Diesel 60 Series Operator's Manual page 68

DETROIT DIESEL
COOLING SYSTEM
MAINTENANCE PRODUCTS
Power Cool SCAs are water-soluble
chemical compounds. These products
are available in coolant filter elements,
liquid packages, and in fully formulated
Power Cool antifreeze.
NOTE:
Power Cool 3000 liquid SCA is more
compatible with hard water than
Power Cool 2000 SCA.
Power Cool Coolant Filter Elements
(spin-on canisters) are available in vari-
ous sizes suitable for cooling systems
of varying capacity. Selection of the
proper element size is vital when pre-
charging non-fully formulated coolant
(i.e. water) at initial fill and at mainte-
nance intervals. A fully formulated
antifreeze must NOT have SCA added
at initial fill. Do not use SCA-containing
filters with NOAT antifreeze or coolant.
The need for maintenance elements is
determined by the results of the nitrite
concentration test performed at each
cooling system service interval. Do not
automatically install maintenance ele-
ments at maintenance intervals unless
the nitrite concentration level falls below
800 parts per million.
Power Cool Liquid On-Line Cleaner
is used for light deposits. Power Cool
Dry Chemical Cleaner/Conditioner
is used for heavy deposits or scale.
Summary of Coolant
Recommendations
CAUTION:
To avoid injury from the expulsion
of hot coolant, never remove the
cooling system pressure cap
while the engine is at operating
temperature. Remove the cap
slowly to relieve pressure. Wear
adequate protective clothing (face
shield or safety goggles, rubber
gloves, apron, and boots).
1. Always maintain the engine coolant
to meet Detroit Diesel specifications.
2. Only use water that meets the speci-
fications listed in Table 15. Distilled,
de-mineralized (reverse osmosis) or
de-ionized water is preferred.
3. The proper dosage of inhibitors
must be included in the coolant at
initial fill for all Detroit Diesel engines.
This dosage is usually included in
the fully formulated antifreeze used,
or it may need to be added if water
alone or if less than 50% antifreeze
is used. The user is urged to refer to
the full text of this section to deter-
mine the proper dosage. Mixing of
different manufacturers' technolo-
gies (brands) could cause cooling
system problems.
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