HOW-TO SECTION
Cool
dry chemical cooling system
cleaner/conditioner (or equivalent
sulfamic acid/sodium carbonate
cleaner) and
fl
ushed.
Maintenance
This section describes the procedures
for maintaining the coolant inhibitor
level and proper concentration.
Coolant Inhibitor Test Intervals
—
The coolant inhibitor level
should be checked at the intervals
listed in Table 28.
Service Application
Inhibitor Test Interval
Motor Coaches
18,000 Miles (32,000 Kilometers)
City Transit Coaches, Pick-Up and
Delivery, Short Trip, and Emergency
Vehicles
6,000 Miles (9,600 Kilometers) or 3
Months, whichever comes first
Industrial, Continuous– Duty Generator
Set and All Other Applications, except
Standby Generator Set
500 Hours or 3 Months, whichever
comes first
Stand-By Generator Set
200 Hours or Yearly, whichever
comes first
Table 28 Required Coolant Inhibitor Test Intervals
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).
If topping off is needed, add coolant
which is identical to the initial
fi
ll
coolant.
Supplemental Coolant Additives
for Fully Formulated Coolant
—
The concentrations of some
inhibitors will gradually deplete
during normal engine operation.
SCAs replenish the protection for
cooling system components. The
coolant
must
be maintained with the
proper concentration of SCA. Detroit
Diesel
Power Cool
maintenance SCAs
are recommended.
96
All information subject to change without notice.
(Rev. May 2004)
DDC-SVC-MAN-0057 0305
Copyright © 2003 DETROIT DIESEL CORPORATION