User Manual

SERIES 50 OPERATOR'S GUIDE
Service App lication
Inhibitor Test Interval
On-Highway Trucks and Motor
Coaches
20,000 Miles (32,000 Kilometers)
City Transit Coaches, Pick-Up and
Delivery, Short Trip, and Emergency
Vehicles
6,000 M iles (9,600 Kilometers) or
3 Months, whichever comes first
Industrial, Co ntinuous– Duty
Generator S et 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 25 Required Coolant Inhibitor Test Intervals
Supplemental Coolant Additives
for Fully Formulated Coolant
— The concentrations of some
inhibitors will gradually deplete
during normal engine operation.
SCAs replenish t he protection for
cooling system components. The
coolant must be maintained with the
proper concentration of SCA. Detroit
Diesel Power Cool maintenance
SCAs are recommended. The proper
application of SCA will provide:
□ pH control.
□ Restored inhibitor levels to prevent
corrosion.
□ Water softening to deter formation
of mineral deposits.
□ Cavitation p rotection to protect
wet sleeve cylinder liners.
NOTICE:
Failure to properly maintain
coolant with SCA can result in
damage to the cooling system
and its related components.
Conversely, over-concentration
of SCA inhibitor can result in
poor heat transfer, leading to
engine damage. Always maintain
concentrations at recommended
levels. Do not use traditi onal SCAs
with OAT coolant.
All information subject to change without notice. (Rev. 01/04) 105
DDC-SVC-MAN-0058 Copyright © 2004 DE TROIT DIESEL CORPORATION